CN111287034A - Protective device for tramcar rail - Google Patents
Protective device for tramcar rail Download PDFInfo
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- CN111287034A CN111287034A CN202010139519.3A CN202010139519A CN111287034A CN 111287034 A CN111287034 A CN 111287034A CN 202010139519 A CN202010139519 A CN 202010139519A CN 111287034 A CN111287034 A CN 111287034A
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- rail
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- steel rail
- adhesive
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- 230000001681 protective effect Effects 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 118
- 239000010959 steel Substances 0.000 claims abstract description 118
- 239000000945 filler Substances 0.000 claims abstract description 89
- 239000000853 adhesive Substances 0.000 claims abstract description 35
- 230000001070 adhesive effect Effects 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000000565 sealant Substances 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims description 43
- 239000012790 adhesive layer Substances 0.000 claims description 23
- 229920001971 elastomer Polymers 0.000 claims description 16
- 244000043261 Hevea brasiliensis Species 0.000 claims description 8
- 229920003052 natural elastomer Polymers 0.000 claims description 8
- 229920001194 natural rubber Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 18
- 230000009467 reduction Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005536 corrosion prevention Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
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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
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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
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a protective device for a tramcar steel rail, which comprises a filler, an adhesive and a rail bottom sheath, wherein the adhesive and the filler are respectively arranged on two sides of the steel rail along the width direction from inside to outside in sequence; the bottom of the steel rail is of an inverted T-shaped structure, and the rail bottom sheath is coated on the bottom of the steel rail; the rail bottom sheath extends upwards and inwards from the bottom of the inverted T shape along the edges of the two sides and is in fit and sealing connection with fillers on the two sides of the steel rail, one side, close to the steel rail, of the fillers on the two sides of the steel rail is a curved surface in a shape completely fitted with the steel rail, and the fillers, the rail top sealant and the rail bottom sheath form a protective layer on the periphery of the steel rail together.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a protection device for a tramcar steel rail.
Background
At present, tramcars are widely applied in many cities in China and run between roads, squares and even greenbelts. Tramcars mostly adopt an embedded track structure, and the steel rails are laid under ground roads and covered by road pavement or green belts.
Because the tramcar adopts direct current traction power supply, stray current exists, the steel rail is extremely easy to be corroded electrochemically, the service life of the steel rail is shortened if the steel rail is light, and the driving safety is damaged if the steel rail is heavy. In addition, as the steel rail is buried underground, once rainwater permeates into a track structure, the rainwater is difficult to volatilize, so that the steel rail is corroded; meanwhile, the wet environment caused by rainwater infiltration will aggravate the electrochemical corrosion caused by stray current, so that the steel rail is in an extremely unfavorable state. Therefore, it is very important to ensure that the rail is in a dry state. Furthermore, tramcars are often located in urban busy areas or residential gathering areas, and vibration and noise reduction of the rails is necessary in order to reduce the influence of vibration noise generated by train operation on surrounding environments and buildings and ensure that citizens along lines are prevented from being damaged by the vibration noise. Meanwhile, good vibration reduction measures can generate a buffer effect between the steel rail and the road, so that mutual collision between the steel rail and the road during train operation is relieved, and the service lives of the steel rail and the road are prolonged.
From the field implementation situation of the prior art, firstly, the materials used in the filler have a plurality of pores, and the water absorption is high, so that the insulation and corrosion prevention of the steel rail are not facilitated; secondly, the adhesive has poor bonding effect, so that the filler is easy to fall off from two sides of the steel rail, the sealing insulation and vibration and noise reduction functions of the steel rail protection structure are difficult to exert, finally, in the intersection road section of the tramcar, the rail top sealant is damaged due to rolling of social vehicles to become a weak link, the damaged area is usually one side of two sides of the steel rail, and in a word, a plurality of defects in the prior art are still to be further improved.
Patent document CN105568781B discloses an embedded rail corrosion prevention structure capable of preventing corrosion for a long time in an operation process and a preparation method thereof, the embedded rail corrosion prevention structure comprises a rail, a corrosion prevention coating and a polyurethane protective layer, wherein the outer layer of the rail is coated with the corrosion prevention coating, and the outer side of the corrosion prevention coating is coated with the polyurethane protective layer; the anti-corrosion coating and the polyurethane protective layer wrap two side surfaces and the bottom surface of the steel rail, but the anti-seismic effect of the design is poor, and the protective layer is easy to fall off due to vibration.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a protection device for a tramcar rail.
The invention provides a protective device for a tramcar rail, which comprises a filler, an adhesive and a rail bottom sheath 8;
the two sides of the steel rail 1 along the width direction are respectively provided with an adhesive and a filler in sequence from inside to outside;
the bottom of the steel rail 1 is in an inverted T shape, and the rail bottom sheath 8 is coated on the bottom of the steel rail 1;
the rail bottom sheath 8 extends upwards and inwards from the bottom of the inverted T shape along the edges of the two sides and is in fit and sealing connection with fillers on the two sides of the steel rail 1.
Preferably, the adhesive comprises a first adhesive layer 4 and a second adhesive layer 5;
the filler comprises a first filler layer 2 and a second filler layer 3;
a first adhesive layer 4 is arranged between the left side of the steel rail 1 and the first filling layer 2;
and a second adhesive layer 5 is arranged between the right side of the steel rail 1 and the second filling layer 3.
Preferably, the adhesive comprises a third adhesive layer 9;
the third adhesive layer 9 is arranged between the bottom of the steel rail 1 and the rail bottom sheath 8.
Preferably, the rail top sealing glue further comprises rail top sealing glue, wherein the rail top sealing glue comprises a first rail top sealing layer 6 and a second rail top sealing layer 7;
the first rail top sealing layer 6 and the second rail top sealing layer 7 are respectively arranged on two sides of the top of the steel rail 1;
the first rail top sealing layer 6 and the second rail top sealing layer 7 are respectively arranged on two sides of the top of the steel rail 1 and are respectively in sealing fit with the second filling layer 3 and the first filling layer 2;
the first adhesive layer 4 extends upwards to a position between the second rail top sealing layer 7 and the steel rail 1;
the second adhesive layer 5 extends upwardly between the first tip seal layer 6 and the rail 1.
Preferably, the filler is made of rubber materials, and the filler is manufactured through a mixing and vulcanizing production process according to the designed shape.
Preferably, the rubber selected as the raw material for producing the filler is reclaimed rubber, natural rubber or a mixture of the reclaimed rubber and the natural rubber.
Preferably, one side of the filler on the two sides of the steel rail 1 close to the steel rail 1 is a curved surface completely fitting the shape of the steel rail 1.
Preferably, the adhesive has an elongation at break of less than 20%.
Preferably, the rail foot sheath 8 is a curved surface completely fitting the shape of the inverted T-shaped bottom of the steel rail 1.
Preferably, the tops of the first and second tip seals 6, 7 are lower than the top of the rail 1.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention solves the problem that the steel rail can not be ensured to be in a dry environment in the prior art, improves the sealing effect of the rail, and solves the problem that the adhesive in the prior art prevents the effect of the whole protective structure from being exerted.
2. The process adopted by the filler and the selected raw materials ensure that the inside and the outside of the filler are uniform and compact, no visible gap, gap or crack exists, the surface and the inside of the filler do not absorb water, the filler has a good waterproof function, the corrosion of the filler on the steel rail caused by water permeation is avoided, the steel rail can be prevented from being invaded by rainwater, underground water and the like, the steel rail has a good insulating effect, the stray current diffusion is reduced, the steel rail is prevented from being subjected to electrochemical corrosion, the service life of the steel rail is prolonged, the steel rail, a surrounding track structure and municipal pipelines are protected, and the driving safety is ensured.
3. The structure of the filler can regard the filler as the combination of a plurality of tiny elastic damping elements, the vibration is gradually weakened and absorbed from the steel rail 1, the vibration transmitted to the surrounding concrete roadbed and other structures is reduced, the filler can receive the vibration to the maximum extent and dissipate the vibration based on the integrity of the contact surface of the filler and the steel rail, and the vibration reduction and noise reduction effects of the rail are improved.
4. The elongation at break of the adhesive is less than 20 percent, so that the adhesive basically does not deform under the action of external force, the filler and the steel rail 1 are prevented from generating displacement, the vibration of the steel rail 1 can be completely transmitted to the filler, and the vibration reduction effect of the filler is ensured to be exerted.
5. Through the width of rationally setting up first railhead sealing layer 6, second railhead sealing layer 7, effectively solve the sealed problem that is rolled the damage by social vehicle of crossing section railhead among the prior art.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of a rail guard at a non-clip joint of a hardened section;
FIG. 2 is a schematic view of a rail guard at a joint of a hardened section clip;
FIG. 3 is a schematic view of a rail guard at a non-clip node of a green section;
FIG. 4 is a schematic view of a rail guard at a fastening node of a green section;
FIG. 5 is a schematic view of a rail guard at a non-clip joint of a cross section;
FIG. 6 is a schematic view of a rail guard at a joint of a cross section clip;
fig. 7 is a schematic structural view of the steel rail protection device.
The figures show that:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The protection device for the tramcar steel rail is applied to an embedded track structure and comprises a filler, an adhesive and a rail bottom sheath 8, wherein the adhesive and the filler are sequentially arranged on two sides of the steel rail 1 along the width direction from inside to outside respectively; rail top sealants are respectively arranged on two sides of the top of the steel rail 1 and are respectively in sealing fit with corresponding fillers on the two sides; the bottom of the steel rail 1 is of an inverted T-shaped structure, and the rail bottom sheath 8 is coated on the bottom of the steel rail 1; the rail bottom sheath 8 extends upwards and inwards from the bottom of the inverted T shape along the edges of the two sides and is in fit and sealing connection with fillers on the two sides of the steel rail 1. Laying the steel rail on a rail track bed; fillers are paved between two sides of the steel rail 1 and surrounding roads or greens, and the fillers are distributed at the positions from the rail head and the rail web of the steel rail 1 to the rail bottom slope and are attached to the appearance of the steel rail 1; the rail top sealant is paved between the two sides of the steel rail and the surrounding roads and is positioned above the filler; the rail bottom sheath 8 is laid between the rail bottom of the steel rail and the rail bearing groove of the fastener and is connected with the filler; bonding the filler and the steel rail 1, the rail bottom sheath and the steel rail 1, and the joint of the filler and the rail bottom sheath by adopting an adhesive; the filler, the rail top sealant and the rail bottom sheath form a protective layer on the periphery of the steel rail 1 together. The invention solves the problem that the steel rail can not be ensured to be in a dry environment in the prior art, improves the sealing effect of the rail, and solves the problem that the adhesive in the prior art prevents the effect of the whole protective structure from being exerted.
Further, as shown in fig. 1, the adhesive includes a first adhesive layer 4, a second adhesive layer 5, and a third adhesive layer 9; the filler comprises a first filler layer 2 and a second filler layer 3; a first adhesive layer 4 is arranged between the left side of the steel rail 1 and the first filling layer 2; and a second adhesive layer 5 is arranged between the right side of the steel rail 1 and the second filling layer 3, and a third adhesive layer 9 is arranged between the bottom of the steel rail 1 and the rail bottom sheath 8.
Further, as shown in fig. 1, the rail top sealant includes a first rail top sealant 6 and a second rail top sealant 7; the first rail top sealing layer 6 and the second rail top sealing layer 7 are respectively arranged on two sides of the top of the steel rail 1 and are respectively in sealing fit with the second filling layer 3 and the first filling layer 2, the first adhesive layer 4 upwards extends to a position between the second rail top sealing layer 7 and the steel rail 1, and the second adhesive layer 5 upwards extends to a position between the first rail top sealing layer 6 and the steel rail 1. Adhering the filler, the rail top sealant and the rail bottom sheath 8 to the periphery of the steel rail 1 by using an adhesive;
specifically, the filler is made of a rubber material, the filler is manufactured through a mixing vulcanization production process according to a designed shape, the rubber selected as the raw material for producing the filler is regenerated rubber, natural rubber or a mixture of the regenerated rubber and the natural rubber, after the filler is manufactured, the inner part and the outer surface of the filler are uniform and compact, no visible gap, crack and the like exist, the surface and the inner part of the filler do not absorb water, the filler has a good waterproof function, and a good insulating effect, so that the steel rail is prevented from being subjected to electrochemical corrosion, the service life of the steel rail is prolonged, and the driving safety is ensured.
Specifically, in order to make the adhesive exert a better bonding effect, the coating area of the adhesive, that is, the contact area between the filler and the rail 1, is enlarged as much as possible, so that the side of the filler on both sides of the rail 1 close to the rail 1 is a curved surface completely fitting the rail 1, and the rail foot sheath 8 is a curved surface completely fitting the inverted T-shaped bottom of the rail 1. The filler can be regarded as the combination of a plurality of tiny elastic damping elements, the vibration is gradually weakened and absorbed from the steel rail 1, the vibration transmitted to the surrounding concrete roadbed and other structures is reduced, the vibration of the steel rail 1 is more completely transmitted to the filler based on the integrity of the contact surface of the filler and the steel rail, the filler can receive the vibration to the maximum extent and dissipate the vibration, the vibration reduction and noise reduction effects of the rail are improved, and the vibration reduction effect is improved; in addition, the complete pasting surface is easier to smear the adhesive than the vacant pasting surface, and the construction is more convenient.
Specifically, the adhesive is glue with high bonding strength and small elongation at break. The tensile strength of the adhesive is equivalent to that of a filler rubber material, the bonding strength of the adhesive, the steel rail and the filler is equivalent to that of the filler rubber material, the filler is guaranteed to be firmly bonded with the steel rail, and in an extreme case, the adhesive and the filler have equivalent capacity of resisting external force and cannot become a weak link.
Specifically, in the intersection section, as shown in fig. 5, 6, and 7, the width of the rail top sealant on the wider side of the two sides of the steel rail 1 is reduced, so that the widths of the rail top sealants on the two sides of the steel rail are the same, the rolling area of the rail top sealant is reduced, and the problem that the rail top sealant is rolled and damaged is effectively solved.
Example 1:
this embodiment is suitable for the case where the line is buried in a road, which is laid with asphalt or cement. As shown in fig. 1 and 2, the channel steel rail 1 is laid on a track bed; fillers are paved between two sides of the steel rail and surrounding roads, and are distributed at the positions from the rail head and the rail web of the steel rail to the slope of the rail bottom to be attached to the appearance of the steel rail 1; the rail top sealant is paved between the two sides of the steel rail and the surrounding roads and is positioned above the filler; the rail bottom sheath 8 is laid between the rail bottom of the steel rail 1 and the rail bearing groove of the fastener and is connected with the filler; the joint between the filler and the steel rail 1, between the rail bottom sheath 8 and the steel rail 1 and between the filler and the rail bottom sheath 8 are bonded by adhesive, and the shape of the filler is changed at the joint of the fastener to reserve an installation space for the fastener; the filler, the rail top sealant and the rail bottom sheath 8 form an insulating protective layer on the periphery of the steel rail 1 together, so that the steel rail 1 is in a sealed and dry environment, and the diffusion of stray current can be relieved. The surface of the road is flush with the rail head of the steel rail 1, and the rail top sealant is slightly lower than the height of the rail head and the rail head, so that the road surface is protected. The filler is positioned below the rail top sealant and on two sides of the rail web of the steel rail 1, is formed by mixing and vulcanizing regenerated rubber, natural rubber or a mixture of the regenerated rubber and the natural rubber, does not absorb water on the surface and in the inner part, prevents the filler from absorbing underground water or leaked rainwater to enable the steel rail to be in a humid environment, and avoids the conditions that the steel rail 1 is corroded and an insulating layer is damaged. Meanwhile, the filler has elasticity and damping, is tightly attached to the steel rail 1 in a large area, and can fully and timely absorb the vibration of the steel rail 1 to generate the effects of vibration reduction and noise reduction. The adhesive has strong bonding capability and deformation resistance, and can tightly combine the filler with the steel rail 1, the filler with the rail bottom sheath 8 under normal use working conditions and extreme working conditions, thereby ensuring the sealing insulation and the performance of vibration and noise reduction effects.
Example 2:
this embodiment is suitable for the case that the line is buried in the green land. As shown in fig. 3 and 4, the main structure of this embodiment is the same as that of embodiment 1, and the rail top sealant is removed. The upper surface of the filler, which is in contact with the steel rail 1, is additionally reinforced with an adhesive to serve as the outermost protection against soil and rainwater.
Example 3:
this embodiment is specifically designed for intersection line sections. As shown in fig. 5 and 6, the main structure of this embodiment is the same as that of embodiment 1. The width of the left rail top sealant is reduced, so that the widths of the rail top sealants on the two sides of the steel rail 1 are the same, the width of the left filler is correspondingly reduced, and the left side of the rail bottom sheath 8 is prolonged to cover the whole rail bottom slope. The service life of the rail top sealant of the intersection line is greatly prolonged, and the maintenance amount and the maintenance complexity are reduced.
After the rubber material of the filler is subjected to a mixing vulcanization process, the vibration reduction effect is improved, and the vibration of the steel rail 1 can be effectively absorbed by combining the firm bonding and small displacement deformation of the adhesive. One side of the filler close to the steel rail 1 is a complete curved surface fitting the shape of the steel rail, so that the vibration of the steel rail 1 is transmitted to the filler more completely, and the vibration reduction effect is improved. In addition, the complete pasting surface is easier to smear the adhesive than the vacant pasting surface, and the construction is more convenient.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A protection device for a tramcar rail is characterized by comprising filler, adhesive and a rail bottom sheath (8);
the two sides of the steel rail (1) along the width direction are respectively provided with an adhesive and a filler from inside to outside in sequence;
the bottom of the steel rail (1) is in an inverted T shape, and the rail bottom sheath (8) is coated on the bottom of the steel rail (1);
the rail bottom sheath (8) extends upwards and inwards from the bottom of the inverted T shape along the edges of the two sides and is attached and sealed with fillers on the two sides of the steel rail (1).
2. The guard for tram rails according to claim 1, characterized in that the adhesive comprises a first adhesive layer (4) and a second adhesive layer (5);
the filler comprises a first filler layer (2) and a second filler layer (3);
a first adhesive layer (4) is arranged between the left side of the steel rail (1) and the first filling layer (2);
and a second adhesive layer (5) is arranged between the right side of the steel rail (1) and the second filling layer (3).
3. The guard for tram rails according to claim 1, characterized in that the adhesive comprises a third layer (9) of adhesive;
the third adhesive layer (9) is arranged between the bottom of the steel rail (1) and the rail bottom sheath (8).
4. The tram rail guard of claim 2 further comprising a rail top sealant, said rail top sealant comprising a first rail top sealant layer (6) and a second rail top sealant layer (7);
the first rail top sealing layer (6) and the second rail top sealing layer (7) are respectively arranged on two sides of the top of the steel rail (1);
the first rail top sealing layer (6) and the second rail top sealing layer (7) are respectively arranged on two sides of the top of the steel rail (1) and are respectively in sealing fit with the second filling layer (3) and the first filling layer (2);
the first adhesive layer (4) extends upwards to a position between the second rail top sealing layer (7) and the steel rail (1);
the second adhesive layer (5) extends upwards to a position between the first rail top sealing layer (6) and the steel rail (1).
5. The tram rail guard as claimed in claim 1, wherein the filler is made of rubber material, and the filler is manufactured by a manufacturing process of mixing and vulcanizing according to a designed shape.
6. A tramcar rail guard according to claim 5 characterised in that the filler is made from a rubber selected from the group consisting of reclaimed rubber, natural rubber and mixtures of reclaimed and natural rubber.
7. The guard for tram rail according to claim 1, characterized in that the side of the filler on both sides of the rail (1) close to the rail (1) is a curved surface which is completely conformed to the rail (1).
8. A tram rail guard according to claim 1 wherein the adhesive has an elongation at break of less than 20%.
9. A guard for a tram rail according to claim 1 characterised in that the foot jacket (8) is curved to conform fully to the inverted T-shaped foot of the rail (1).
10. The guard for a tram rail according to claim 4, characterised in that the tops of the first and second tip seals (6, 7) are lower than the top of the rail (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010139519.3A CN111287034A (en) | 2020-03-03 | 2020-03-03 | Protective device for tramcar rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010139519.3A CN111287034A (en) | 2020-03-03 | 2020-03-03 | Protective device for tramcar rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111287034A true CN111287034A (en) | 2020-06-16 |
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ID=71022957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010139519.3A Pending CN111287034A (en) | 2020-03-03 | 2020-03-03 | Protective device for tramcar rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111287034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699839A (en) * | 2021-09-06 | 2021-11-26 | 上海市城市建设设计研究总院（集团）有限公司 | Urban tramcar rail side semi-flexible transition structure and construction method thereof |
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