Tramway turnout

Abstract

The utility model provides a tramway turnout, including basic rail frog and guard rail, the inside and outside of above -mentioned rail are all pasted and set up flexible seal piece, flexible seal piece is by corresponding rail head side surface downward extension through rail waist to rail bottom upper surface, the below of basic rail, frog, guard rail all are sequentially provided with rail under damping pad and rail under base plate, its inside and outside both sides are equipped with fastener protection cover, the inside surface of fastener protection cover is pasted with corresponding flexible seal piece, the one side of fastener system is pressed on rail under base plate, the other side is pressed corresponding rail through gauge block, the part of this fastener system that exposes in corresponding base plate outside all are arranged in fastener protection cover. The utility model discloses a flexible seal piece can be sealed to the side of rail that is non - working, improves its corrosion resistance and the ability of adapting to the environment, prolongs its service life, reduces the workload of later maintenance, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of urban rail transit technology, specifically a tramway switch. Background Technology

[0002] The construction of tram systems can effectively alleviate urban traffic congestion. To minimize the impact on traffic, especially in city centers or densely populated areas, and to reduce vandalism, tram switches are typically buried underground. The underground environment is often damp, necessitating corrosion protection for the switches. Furthermore, in some humid regions, to extend their service life and ensure track stability, the corrosion protection requirements for the switches are even higher.

[0003] In addition, during the laying of tram turnouts, concrete needs to be poured on the short turnout sleeper surface, with the pouring surface 30 centimeters below the sleeper surface. When pouring concrete, it is easy to pour concrete onto the fastening system, which can cause the fastening system to become unstable and pose a safety hazard. Utility Model Content

[0004] This utility model addresses the problems and defects existing in the prior art by providing a tram turnout. The tram turnout with this structure has flexible sealing elements on both the inner and outer sides of the rail to seal the non-working surfaces of the rail, thereby improving its corrosion resistance, extending its service life, and ensuring the stability of the turnout.

[0005] To achieve the above objectives, this utility model provides a tram turnout, including a main rail, a switch rail, a frog, and a guard rail. The main rail, frog, and guard rail are all fixed to the sleepers by a fastening system. Flexible sealing elements are fitted to the inner and outer sides of the main rail, switch rail, frog, and guard rail. These flexible sealing elements extend downwards from the side of the rail head, through the rail web, to the upper surface of the rail base. Under the main rail, frog, and guard rail, a rail under-rail damping pad and a rail under-rail base plate are sequentially arranged, with fastening protective covers on both their inner and outer sides. The inner side of the fastening protective cover is fitted to the corresponding flexible sealing element. One side of the fastening system is pressed against the rail under-rail base plate, and the other side is pressed against the corresponding rail via a gauge block. The portion of the fastening system exposed outside the corresponding base plate is housed within the fastening protective cover. This technical solution, by using flexible sealing elements on the inner and outer sides of the rail, can seal the non-working side of the rail, improving its corrosion resistance and environmental adaptability, extending its service life, reducing subsequent maintenance workload, and lowering maintenance costs. Installing rail damping pads under the rails allows them to dissipate vibration energy through their elastic properties, reducing damage to the base plate caused by rail vibration due to wheel forces. Furthermore, placing the fastening system within a protective cover not only provides waterproofing and dustproofing, extending the system's lifespan and reducing maintenance, but also prevents concrete from being poured onto the fastening system, ensuring its stability and performance.

[0006] Furthermore, the inner side of the fastener protective cover is connected to the corresponding flexible seal by screws.

[0007] Furthermore, the switch rail is installed within the stock rail base. One side of the stock rail base is connected to the sleeper via a fastening system, and the other side is connected to the sleeper via a pressure plate and spiral spikes. The pressure plate is fixedly connected to the stock rail base. This design ensures smooth operation of the switch rail.

[0008] Furthermore, a spike protector is provided above the pressure plate, located outside the spiral spike. The spike protector protects the spiral spike, improves its durability, extends its service life, and contributes to the stability of the turnout.

[0009] Furthermore, flexible sealing elements are provided on both the inner and outer sides of the basic rail base. These flexible sealing elements seal the basic rail base, improving its corrosion resistance and durability.

[0010] Furthermore, a base damping pad and a base plate are provided below the basic rail base, and the fastening system and the spiral rail spike are respectively provided on the base plate.

[0011] Furthermore, a fastening plate is provided between the guard rail and the frog toe rail, and the fastening plate is fixed to the sleeper by a fastening system to fasten the guard rail and the frog toe rail.

[0012] Furthermore, a fastener cover is provided on the fastener plate, and the portion of the fastener system exposed on the outside of the fastener plate is located inside the fastener cover.

[0013] Furthermore, one end of the base plate has a boss for mounting the fastening system. This design facilitates the installation of the fastening system and provides convenient conditions for construction.

[0014] Furthermore, the flexible seal includes a seal body with several opening slots, one side of which faces the rail web. The bottom of the flexible seal has an inclined surface that matches the upper surface of the corresponding rail base, and the top has an upwardly protruding strip that matches the lower jaw and side surface of the corresponding rail head, so that the protruding strip fits snugly against the side surface and lower jaw of the corresponding rail head. This design maximizes the sealing of the rail, improves its corrosion resistance, and ensures the stability of the turnout.

[0015] Compared with the prior art, the present invention has the following technical effects:

[0016] 1. This utility model improves the corrosion resistance, extends the service life, and ensures the stability of the turnout by installing flexible sealing elements on both the inner and outer sides of the rail to seal the non-working surfaces of the rail.

[0017] 2. This utility model places the fastener system inside the protective cover, which not only serves to waterproof and dustproof, extend the service life of the fastener system, and reduce maintenance, but also prevents concrete from being poured onto the fastener system during concrete pouring, ensuring the stability and performance of the fastener system.

[0018] 3. The switch rail of this utility model is set inside the base rail base. The base rail provides support for the switch rail, which can ensure that the switch rail can be turned smoothly. In addition, flexible sealing elements are set on both sides of the base rail base to improve its corrosion resistance and extend its service life.

[0019] 4. The flexible sealing element of this utility model has a cavity, which not only reduces weight, but also makes it easier to ensure its tight fit with the rail web.

[0020] 5. In summary, the tram turnout of this utility model, by setting flexible materials on its inner and outer sides and setting rubber pads on its bottom, can improve its corrosion resistance, reduce the damage of wheel force to the base plate, reduce the amount of subsequent maintenance work, and improve the stability of the turnout. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification and serve to further illustrate the preferred embodiments of the present invention, and together with the specification, serve to explain the principles of the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the arrangement of the tramway switches of this utility model;

[0023] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0024] Figure 3 yes Figure 1 A schematic diagram of the rotated sectional view of the middle BB structure;

[0025] Figure 4 yes Figure 1 A schematic diagram of the rotated cross-sectional structure of CC.

[0026] The labels in the diagram represent the following: 1. Straight main rail, 2. Curved main rail, 3. Curved switch rail, 4. Straight switch rail, 5. Frog, 6. Straight guard rail, 7. Curved guard rail, 8. Frog toe rail, 9. Flexible seal, 901. Seal body, 902. Opening groove, 903. Raised strip, 10. Fastener protection cover, 11. Fastener system, 12. Gauge block, 13. Rail base plate, 14. Sleeper, 15. Rail elastic pad, 16. Main rail base, 17. Base base plate, 18. Base elastic pad, 19. Spiral screw protection cover, 20. Spiral screw, 21. Pressure plate, 22. Fastener plate, 23. Fastener plate and fastener protection cover. Detailed Implementation

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0028] The following is a reference to the appendix. Figures 1 to 4 Detailed description of the preferred embodiments of this utility model:

[0029] The tram turnout provided by this utility model includes a main rail, a switch rail, a frog, and a guard rail. The main rail, frog, and guard rail are all fixed to sleepers 14 by a fastening system 11. Flexible sealing elements 9 are fitted to the inner and outer sides of the main rail, switch rail, frog, and guard rail. The flexible sealing elements 9 extend downwards from the side of the rail head, through the rail web, to the upper surface of the rail base. Under the main rail, frog, and guard rail, a rail under-mount damping pad 15 and a rail under-mount base plate 13 are sequentially arranged, with fastening protective covers 10 on both their inner and outer sides. This can be understood as the main rail, frog, and guard rail all being equipped with fastening protective covers 10, with the inner side of the fastening protective cover 10 fitting against the corresponding flexible sealing element 9. One side of the fastening system 11 is pressed against the rail under-mount base plate 13, and the other side is pressed against the corresponding rail via a gauge block 12. The portion of the fastening system 11 exposed outside the corresponding rail under-mount base plate 13 is disposed within the fastening protective cover 10. This utility model seals the non-working surfaces of the rails by installing flexible sealing elements on both the inner and outer sides, thereby improving their corrosion resistance, extending their service life, and ensuring the stability of the turnout. At the same time, placing the fastening system inside the protective cover not only provides waterproofing and dustproofing, extending the service life of the fastening system and reducing maintenance, but also prevents concrete from being poured onto the fastening system, ensuring the stability and performance of the fastening system.

[0030] Example: Figure 1 and 2 As shown, this example uses a No. 6 single turnout of a tramway as an example to introduce the tramway turnout of this utility model in detail. Specifically, the tramway turnout in this embodiment includes a straight main rail 1, a curved main rail 2, a curved switch rail 3, a straight switch rail 4, a frog 5, a straight guard rail 6, and a curved guard rail 7. The straight main rail 1 cooperates with the curved switch rail 3, and the curved main rail 2 cooperates with the straight switch rail 4. The laying method of the straight main rail 1 is the same as that of the curved main rail 2. The specific laying method of the straight main rail 1 is as follows: Figure 1As shown, a rail-mounted elastic pad 15 is provided on the lower side of the straight main rail 1. The rail-mounted elastic pad 15 is a rubber pad. Below the rail-mounted elastic pad 15, a rail-mounted base plate 13 is provided. The rail-mounted base plate 13 is made of nylon 66 material. Nylon 66 material can meet the mechanical requirements of the fastening system, has high corrosion resistance and strength, thereby improving the corrosion resistance of the turnout and extending its service life. Both ends of the rail-mounted base plate 13 are provided with upward protruding bosses for installing the fastening system. The straight main rail 1 is installed between the two bosses. Track gauge blocks 12 are provided on the inner and outer sides of the rail bottom of the straight main rail 1. The straight main rail 1 is installed on the sleeper through the track gauge blocks 12 and the fastening system installed on the rail-mounted base plate 13. Flexible sealing elements 9 are provided on the inner and outer sides of the straight main rail 1. The flexible sealing elements 9 are made of flexible materials, such as rubber (silicone, fluororubber), or sealing elements made of elastic particles.

[0031] The flexible seal 9 in this embodiment includes a seal body 901. The height of the seal body 901 is adapted to the height of the web of the straight base rail 1, so that the seal body 901 is located within the web of the straight base rail 1. The seal body 901 has several opening slots 902, with one side of the opening facing the web of the rail. The bottom of the flexible seal 9 has an inclined surface that matches the upper surface of the bottom of the straight base rail 1, and the top has an upwardly protruding ridge 903 that matches the lower jaw and side surface of the rail head of the straight base rail 1, so that the ridge 903 fits snugly against the side surface and lower jaw of the rail head of the straight base rail 1. This design can maximize the sealing of the rail, improve its corrosion resistance, and ensure the stability of the turnout.

[0032] A fastener protection cover 10 is provided on the rail base plate 13, and the fastener protection cover 10 is located on the inner and outer sides of the straight base rail 1. The inner side of the fastener protection cover 10 is connected to the corresponding flexible seal 9 by screws. Specifically, the fastener protection cover 10 has a flange on the side near the flexible seal 9, and is connected to the corresponding seal 9 by the flange.

[0033] The curved switch rail 3 is laid in the same way as the straight switch rail 4. The straight switch rail 4 is laid as follows: Figure 3 As shown, in this embodiment, the curved switch rail 3 is installed inside the base rail base 16. One side of the base rail base 16 is connected to the sleeper 14 via a fastening system 11, and the other side is connected to the sleeper 14 via a pressure plate 21 and a spiral spike. The pressure plate 21 is fixedly connected to the base rail base 16 and is a metal plate, which is welded to the base rail base 16. This design of the base rail base provides support for the switch rail, ensuring smooth operation of the switch rail.

[0034] A spike protection cover 20 is installed above the pressure plate 21, located outside the spiral spike. The portion of the spiral spike located outside the pressure plate 21 is inside the spike protection cover 20. The spike protection cover 20 has a door-shaped cross-section, and its bottom is fixedly connected to the pressure plate 21. The spike protection cover 20 is installed to prevent concrete from being poured onto the spiral spike during concrete pouring, thus affecting the performance and later maintenance of the spiral spike. Flexible sealing elements 9 are provided on both the inner and outer sides of the base rail base 16. The flexible sealing element 9 has a rectangular cross-section, and an opening groove (not shown in the figure) is provided on the side facing the base rail base. The flexible sealing element 9 seals the base rail base 16, improving its corrosion resistance and durability. A base elastic pad 18 and a base base plate 17 are provided below the base rail base 16. Similarly, the base elastic pad 18 is a rubber pad, and the base base plate 17 is made of nylon 66 material. The fastening system 11 and the spiral spike are respectively installed on the base base plate 17. One end of the base plate 17 has a boss for mounting the fastening system 11. This design facilitates the installation of the fastening system 11 and provides convenient conditions for construction.

[0035] See Figure 4 In this embodiment, a fastening plate 22 is provided between the straight guard rail 6 and the frog toe rail 8. The fastening plate 22 is fixed to the sleeper 14 by a fastening system 11 to fasten the straight guard rail 6 and the frog toe rail 8. A fastening plate 22 fastening cover is provided on the fastening plate 22. The part of the fastening system 11 exposed outside the fastening plate 22 is located inside the fastening plate fastening cover 23. The cross-section of the fastening plate fastening cover 23 is door-shaped, and its bottom end is connected to the top surface of the fastening plate 22. The curved guard rail 7 and the frog 5 are laid in the same way as the straight guard rail 6 and the frog 5. Flexible sealing gaskets 9 are provided on both the inner and outer sides of the straight guard rail 6 and the frog toe rail 8. Their structure and material are the same as the flexible sealing gaskets on both sides of the straight main rail 1.

[0036] The spike protector and fastener protector of this utility model are both made of nylon 66 material, as are the gauge blocks. Using nylon 66 material satisfies both strength and corrosion resistance requirements, improving the overall corrosion resistance of the turnout. The under-rail elastic pad and base pad are 10mm thick rubber pads.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tramway turnout, comprising a stock rail, a switch rail, a frog, and a guard rail, wherein the stock rail, frog, and guard rail are all fixed to sleepers by a fastening system, characterized in that, Flexible sealing elements are fitted to both the inner and outer sides of the main rail, switch rail, frog, and guard rail. The flexible sealing elements extend downward from the side of the rail head of the corresponding rail, through the rail web, to the upper surface of the rail bottom. Under the main rail, frog, and guard rail, there are rail under-rail elastic pads and rail under-rail base plates in sequence. Fastener protective covers are provided on both the inner and outer sides of the fastener protective covers. The inner side of the fastener protective cover is fitted to the corresponding flexible sealing element. One side of the fastener system is fastened to the rail under-rail base plate, and the other side is fastened to the corresponding rail through the gauge block. The part of the fastener system exposed outside the corresponding base plate is set inside the fastener protective cover.

2. The tramway switch according to claim 1, characterized in that, The inner side of the fastener protective cover is connected to the corresponding flexible seal by screws.

3. The tramway switch according to claim 1, characterized in that, The switch rail is installed inside the base rail. One side of the base rail is connected to the sleeper via a fastening system, and the other side is connected to the sleeper via a pressure plate and a spiral spike. The pressure plate is fixedly connected to the base rail.

4. The tramway switch according to claim 3, characterized in that, A spike protector is provided above the pressure plate, located outside the spiral spike.

5. The tramway switch according to claim 3, characterized in that, Flexible sealing elements are provided on both the inner and outer sides of the basic rail base.

6. The tramway switch according to claim 5, characterized in that, The base of the basic rail is provided with a base elastic pad and a base base plate, and the fastening system and the spiral rail spike are respectively provided on the base base plate.

7. The tramway switch according to claim 6, characterized in that, One end of the base plate has a boss for mounting a fastening system.

8. The tramway switch according to claim 1, characterized in that, A fastening plate is provided between the guard rail and the frog toe rail. The fastening plate is fixed to the sleeper by a fastening system to fasten the guard rail and the frog toe rail.

9. The tramway switch according to claim 8, characterized in that, A fastener cover is provided on the fastener plate, and the portion of the fastener system exposed on the outside of the fastener plate is located inside the fastener cover.

10. The tramway switch according to claim 1, characterized in that, The flexible seal includes a seal body made of flexible material, the seal body having several opening slots with one side of the opening facing the rail web, the bottom of the flexible seal having an inclined surface matching the upper surface of the corresponding rail bottom, and the top having an upward protruding strip matching the lower jaw and side of the corresponding rail head, so that the protruding strip fits against the side and lower jaw of the corresponding rail head.

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