Unit slab ballastless track

Abstract

The utility model discloses a unit board type ballastless track, it includes base, is provided with track board at the top of base, the both sides of track board all are seted up with semicircular limit slot, and the semicircular limit slot on adjacent two track boards formed the circular slot. Threadedly connect the nut and bolt, the nut compresses the gasket, makes "W" type pressure spring compresses the rail on the tie, then sets the spring cover to the bolt, again sets the anti -drop piece cover to the bolt, makes the anti -drop piece extrusion spring, and spring will extrude the nut, and the anti -drop piece moves down and drives the bracket to move down, makes the bracket slide in the guide groove, when the bracket slides to the bottom of guide groove, rotates the cylinder no.

Description

Technical Field

[0001] This utility model relates to a track structure, and more particularly to a unit plate type ballastless track. Background Technology

[0002] Ballastless track refers to a track structure that uses an integral foundation of concrete, asphalt mixture, etc., instead of loose gravel track. It is also known as ballastless track and is the world's most advanced track technology. Compared with ballasted track, ballastless track avoids ballast splashing, has better smoothness, stability, service life, durability, less maintenance, and higher train speed.

[0003] During installation, existing unit slab ballastless tracks require "W"-shaped compression springs to tighten and fix the rails. Bolts are usually cast and fixed on the sleepers. A washer is passed through the bolt and the "W"-shaped compression spring is pressed down. Then, a nut is used to tighten the washer, which makes the "W"-shaped compression spring press the rails together. However, the rails vibrate when the train is running. When the rails vibrate, the nuts can easily loosen from the bolts. Therefore, regular maintenance is required, which increases the workload. Loosening also poses a safety hazard. Utility Model Content

[0004] (a) Purpose of the utility model In view of this, the purpose of this utility model is to propose a unit slab ballastless track. The technical problem it aims to solve is that the rails vibrate during train operation. When the rails vibrate, the nuts are prone to loosening from the bolts. Therefore, regular maintenance is required, which increases the workload. Furthermore, the loosening also poses a safety hazard.

[0005] (II) Technical Solution To achieve the above technical objectives, this utility model provides a unitized slab type ballastless track: It includes a base, on which a track plate is provided. Semi-circular limiting grooves are provided on both sides of the track plate. The semi-circular limiting grooves on two adjacent track plates form a circular groove. Multiple raised circular baffles are cast at equal intervals on the top of the base. The raised circular baffles can be embedded into the circular grooves of two adjacent track plates. Multiple sleepers are fixed on the top of the track plate. The multiple sleepers are distributed in two rows. A rail is installed on the top of each row of sleepers. Two "W"-shaped compression springs are provided on each sleeper to press the rails onto the sleepers. Limiting members are provided on each sleeper to press the "W"-shaped compression springs.

[0006] Preferably, the limiting member includes two bolts fixed to the top of the sleeper, the two bolts being located on both sides of the rail, and a washer capable of pressing a "W"-shaped compression spring is fitted on the bolt, and a nut for pressing the washer is threaded onto the bolt.

[0007] Preferably, a spring for pressing the nut is slidably connected to the bolt, and an anti-loosening plate for pressing the spring is also slidably connected to the bolt.

[0008] Preferably, the anti-detachment plate is located above the spring, the spring is located above the nut, the nut is located above the washer, and the washer is located above the "W"-shaped compression spring.

[0009] Preferably, four columns 1 are fixed on the sleeper, with each pair of columns 1 arranged symmetrically about the bolts, and column 2 is rotatably connected to the top of each column 1.

[0010] Preferably, the second column is provided with a guide groove, a horizontal groove, and a retaining groove, and the two ends of the horizontal groove are respectively connected to the guide groove and the retaining groove.

[0011] Preferably, two brackets are symmetrically fixed on the outer side of the anti-detachment piece, and the brackets are slidably fitted into the guide groove, the transverse groove, and the slot.

[0012] Preferably, the top of the sleeper has a groove, a vibration damping layer is laid in the groove, and the bottom of the rail is embedded in the groove.

[0013] As can be seen from the above technical solution, this application has the following beneficial effects: the nut and bolt are threaded together, so that the nut presses the washer, so that the "W"-shaped compression spring presses the rail onto the sleeper. Then, the spring is sleeved on the bolt, and then the anti-detachment plate is sleeved on the bolt, so that the anti-detachment plate squeezes the spring, and the spring squeezes the nut. When the anti-detachment plate moves down, it drives the bracket to move down, so that the bracket slides in the guide groove. When the bracket slides to the bottom of the guide groove, the second column is rotated, so that the bracket slides from the transverse groove into the slot. Then the anti-detachment plate is released. At this time, under the elastic force of the spring, the anti-detachment plate and the bracket move up, so that the bracket is stuck in the slot. After that, even if the nut is subjected to the vibration of the rail, the bracket cannot move up because it is stuck in the slot, thus preventing the nut from falling off the bolt, thereby improving stability and safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of the unit plate ballastless track provided by this utility model; Figure 2 Provided by this utility model Figure 1 Schematic diagram of the structure at point A; Figure 3 This is a structural schematic diagram of the sleeper and rail provided by this utility model; Figure 4 Provided by this utility model Figure 3 Schematic diagram of the structure at point B; Figure 5 Provided by this utility model Figure 3 A schematic diagram of the breakdown of the structure.

[0016] Attached diagram descriptions: 1. Base; 2. Track plate; 3. Semi-circular limiting groove; 4. Raised circular stop; 5. Sleeper; 6. Rail; 7. "W" shaped compression spring; 8. Bolt; 9. Washer; 10. Nut; 11. Spring; 12. Anti-detachment plate; 13. Bracket; 14. Column one; 15. Column two; 16. Guide groove; 17. Horizontal groove; 18. Slot; 19. Groove; 20. Vibration damping layer. Detailed Implementation

[0017] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0018] Reference Figure 1-5 : In one embodiment of this utility model, a unit slab ballastless track is provided, including a base 1, a track slab 2 on the top of the base 1, semi-circular limiting grooves 3 on both sides of the track slab 2, and the semi-circular limiting grooves 3 on two adjacent track slabs 2 forming a circular groove. Multiple raised circular baffles 4 are cast at equal intervals on the top of the base 1, and the raised circular baffles 4 can be embedded in the circular grooves of two adjacent track slabs 2. Multiple sleepers 5 are fixed on the top of the track slab 2, and the multiple sleepers 5 are distributed in two rows. A rail 6 is installed on the top of each row of sleepers 5. Two "W"-shaped compression springs 7 are provided on the sleepers 5 to press the rail 6 onto the sleepers 5. Limiting members are provided on the sleepers 5 to press the "W"-shaped compression springs 7. A groove 19 is opened on the top of the sleeper 5, and a vibration damping layer 20 is laid in the groove 19. The bottom of the rail 6 is embedded in the groove 19.

[0019] It should be noted that the vibration damping layer 20 is formed of an elastic material. Preferably, the elastic material is a resin elastic material, and more preferably, the elastic material is a precast rubber elastic pad or a cast-in-place two-component polyurethane. The materials described herein are merely illustrative, and the material of the vibration damping layer 20 is not limited thereto; any elastic material commonly used in the art can be used. By providing the vibration damping layer 20 between the sleeper 5 and the rail 6, the vibration of the rail 6 can be reduced.

[0020] The limiting component includes two bolts 8 fixed to the top of the sleeper 5. The two bolts 8 are located on both sides of the rail 6. A washer 9 that can press the "W"-shaped compression spring 7 is fitted on the bolt 8. A nut 10 for pressing the washer 9 is threaded on the bolt 8. A spring 11 for pressing the nut 10 is slidably connected on the bolt 8. An anti-detachment plate 12 for pressing the spring 11 is slidably connected on the bolt 8.

[0021] Furthermore, the anti-detachment plate 12 is located above the spring 11, the spring 11 is located above the nut 10, the nut 10 is located above the washer 9, and the washer 9 is located above the "W"-shaped compression spring 7. Four columns 14 are fixed on the sleeper 5, and every two columns 14 are symmetrically arranged about the bolt 8. The top of the column 14 is rotatably connected to the column 2 15. The column 2 15 is provided with a guide groove 16, a horizontal groove 17, and a locking groove 18. The two ends of the horizontal groove 17 are respectively connected to the guide groove 16 and the locking groove 18. Two brackets 13 are symmetrically fixed on the outside of the anti-detachment plate 12. The brackets 13 are slidably fitted in the guide groove 16, the horizontal groove 17, and the locking groove 18.

[0022] In use, the unit slab ballastless track consists of multiple segmented track slabs 2. When laying the unit slab ballastless track, multiple track slabs 2 are placed sequentially on the base 1, and the raised circular baffles 4 are embedded in adjacent semi-circular limiting grooves 3 to form a circular groove. Then, the rails 6 are placed on the sleepers 5, so that the rails 6 are embedded in the grooves 19. The vibration damping layer 20 in the grooves 19 can dampen the rails 6. After the rails 6 are laid in the grooves 19, the… The W-shaped compression spring 7 is placed on the sleeper 5, and the bolt 8 passes through the W-shaped compression spring 7, with both ends of the W-shaped compression spring 7 abutting against the sleeper 5 and the rail 6 respectively. Then, the washer 9 is passed through the bolt 8, so that the washer 9 abuts against the W-shaped compression spring 7. Next, the nut 10 is threaded to the bolt 8, so that the nut 10 presses the washer 9, that is, the W-shaped compression spring 7 presses the rail 6 onto the sleeper 5. Then, the spring 11 is sleeved on the bolt 8, and the anti-detachment plate 12 is sleeved on the bolt. 8. When the anti-detachment piece 12 is moved upward, it compresses the spring 11. At this time, the spring 11 compresses the nut 10. When the anti-detachment piece 12 moves downward, it drives the bracket 13 to move downward, so that the bracket 13 slides in the guide groove 16. When the bracket 13 slides to the bottom of the guide groove 16, the second column 15 is rotated, so that the bracket 13 slides from the transverse groove 17 into the slot 18. Then the anti-detachment piece 12 is released. At this time, under the elastic force of the spring 11, the anti-detachment piece 12 and the bracket 13 move upward, so that the bracket 13 is locked in the slot 18. Even if the nut 10 is subjected to vibration from the rail 6, and the nut 10 tries to move upward on the bolt 8 due to the vibration, the bracket 13 is stuck in the slot 18 and cannot move upward, thus preventing the nut 10 from falling off the bolt 8. At this time, the spring 11 is still in a compressed state. Without the action of external force, the bracket 13 will always be restricted in the slot 18. That is, without external interference, the bracket 13 will not fall off, and the anti-detachment plate 12 and the spring 11 keep pressing on the nut 10.

[0023] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A unit-plate ballastless track, comprising a base (1), characterized in that, The base (1) is provided with a track plate (2) on the top. The track plate (2) has semi-circular limiting grooves (3) on both sides. The semi-circular limiting grooves (3) on two adjacent track plates (2) form a circular groove. The base (1) is cast with multiple raised circular baffles (4) at equal intervals on the top. The raised circular baffles (4) can be embedded in the circular grooves of two adjacent track plates (2). Multiple sleepers (5) are fixed on the top of the track plate (2). The multiple sleepers (5) are distributed in two rows. Each row of sleepers (5) is equipped with a rail (6) on the top. Two "W"-shaped compression springs (7) are provided on the sleepers (5) to press the rails (6) onto the sleepers (5). Limiting members are provided on the sleepers (5) to press the "W"-shaped compression springs (7).

2. The unit slab type ballastless track according to claim 1, characterized in that, The limiting component includes two bolts (8) fixed to the top of the sleeper (5), the two bolts (8) are located on both sides of the rail (6), and the bolts (8) are fitted with washers (9) that can press the "W"-shaped compression spring (7). The bolts (8) are threaded with nuts (10) for pressing the washers (9).

3. The unit slab type ballastless track according to claim 2, characterized in that, A spring (11) for pressing the nut (10) is slidably connected to the bolt (8), and an anti-detachment plate (12) for pressing the spring (11) is slidably connected to the bolt (8).

4. The unit slab type ballastless track according to claim 3, characterized in that, The anti-detachment plate (12) is located above the spring (11), the spring (11) is located above the nut (10), the nut (10) is located above the washer (9), and the washer (9) is located above the "W"-shaped compression spring (7).

5. The unit slab type ballastless track according to claim 3, characterized in that, Four columns (14) are fixed on the sleeper (5). Each pair of columns (14) are symmetrically arranged about bolts (8). Columns (2) (15) are rotatably connected to the top of each column (14).

6. The unit slab type ballastless track according to claim 5, characterized in that, The column 2 (15) is provided with a guide groove (16), a horizontal groove (17) and a slot (18), and the two ends of the horizontal groove (17) are respectively connected to the guide groove (16) and the slot (18).

7. The unit slab type ballastless track according to claim 6, characterized in that, Two brackets (13) are symmetrically fixed on the outside of the anti-detachment piece (12), and the brackets (13) are slidably fitted in the guide groove (16), the horizontal groove (17), and the slot (18).

8. The unit slab type ballastless track according to claim 1, characterized in that, The top of the sleeper (5) is provided with a groove (19), and a vibration damping layer (20) is laid in the groove (19). The bottom of the rail (6) is embedded in the groove (19).

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