Track plate for vibration reduction of urban rail

Abstract

Limiting grooves are formed in the two ends of a plate body, positioning protruding blocks are arranged at the positions, located on the two sides of the limiting grooves, of one end of the plate body, positioning grooves are formed in the positions, located on the two sides of the limiting grooves, of the other end of the plate body, and the positioning protruding blocks are matched with the positioning grooves in position. The height of the upper surface of each plate body is gradually reduced from the middle position to the two sides, and V-shaped drainage grooves are symmetrically formed in the positions, located on the two sides, of the upper surface of each plate body, The track plate is reasonable in structure, limiting grooves are formed in the connecting positions of every two plate bodies so as to be matched with positioning bosses of a concrete adjusting layer, and the connecting stability between the track plate and the concrete adjusting layer is greatly improved; on the other hand, every two plate bodies are matched in an inserted mode through the positioning protruding blocks and the positioning grooves, the connection stability between every two adjacent track plates is greatly improved, meanwhile, the height of the upper surfaces of the plate bodies is gradually reduced from the middle position to the two sides, and water cannot be accumulated on the upper surfaces of the plate bodies.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to rail transit equipment, especially a track slab for vibration reduction in urban rail transit. Background Technology

[0002] A track slab is a slab-shaped component used to support and fix the rails, distributing the load transmitted by the train through the rails to the base beneath the slab.

[0003] The track slabs are laid on the base of the track bed, and a concrete adjusting layer is laid on the upper surface of the base. The track slabs are then laid on the upper surface of the concrete adjusting layer, with each pair of track slabs joined end-to-end. The rails are bolted to the rail support platforms on the track slabs. In the existing technology, the upper surface of the track slabs is a flat structure, which easily accumulates water during use, reducing the service life of the track slabs. Furthermore, after the track slabs are joined in pairs, the connection between adjacent track slabs is mainly through the rails mounted on the rail support platforms, resulting in poor stability of the connection between the track slabs. Therefore, an improved technology is urgently needed to solve the above-mentioned problems existing in the current technology. Utility Model Content

[0004] The purpose of this utility model is to provide a track slab for vibration reduction in urban rail transit, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a track slab for vibration reduction in urban rail transit, comprising a slab body, with limiting grooves at both ends of the slab body, positioning protrusions provided at one end of the slab body on both sides of the limiting groove, and positioning grooves provided at the other end of the slab body on both sides of the limiting groove, the positioning protrusions and positioning grooves being matched in position, the height of the upper surface of the slab body gradually decreasing from the middle to both sides, V-shaped drainage grooves symmetrically provided on the upper surface of the slab body on both sides, a drainage outlet provided at the middle position of the V-shaped drainage grooves on the upper surface of the slab body, the distance from the V-shaped drainage grooves to the adjacent sides of the slab body gradually increasing from the middle position of the V-shaped drainage grooves to both ends, and two rows of track support platforms symmetrically provided on both sides of the upper surface of the slab body.

[0006] Preferably, the present invention provides a track slab for vibration reduction of urban rail transit, wherein several lifting pre-embedded sleeves are provided on both sides of the slab.

[0007] Preferably, the present invention provides a track slab for vibration reduction of urban rail transit, wherein stray current terminals are provided at the four corners of the slab, and the stray current terminals are all located on the outside of the corresponding V-shaped drainage groove.

[0008] Preferably, the present invention provides a track slab for vibration reduction of urban rail transit, wherein each of the track support platforms is provided with a fastener sleeve.

[0009] Preferably, the present invention provides a track slab for vibration reduction of urban rail transit, wherein the outer ends of the positioning protrusion are provided with rounded chamfers on both sides, and the width of the positioning protrusion matches the width of the positioning groove.

[0010] Preferably, the present invention provides a track slab for vibration reduction in urban rail transit, wherein a vibration damping pad is attached to the lower surface of the slab.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) Positioning protrusions and positioning grooves are provided at both ends of the plate. During construction, a limit groove is provided at the connection between the two plates to cooperate with the positioning protrusion of the concrete adjustment layer, which greatly improves the connection stability between the track plate and the concrete adjustment layer. On the other hand, the two plates are connected by the positioning protrusions and positioning grooves, which greatly improves the connection stability between the two adjacent track plates.

[0013] (2) The height of the upper surface of the plate gradually decreases from the middle position to both sides. V-shaped drainage grooves and drainage openings are reserved on both sides of the upper surface of the plate. On the one hand, this prevents water from accumulating on the upper surface of the plate, thus ensuring the service life of the track plate. On the other hand, the V-shaped drainage grooves and drainage openings facilitate concentrated drainage to both sides. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 For the appendix Figure 1 A schematic diagram of the right-side view structure;

[0017] Figure 4 This is a schematic diagram of the state during the construction of this utility model.

[0018] In the diagram: 1. Plate body; 2. Limiting groove; 3. Positioning protrusion; 4. Positioning groove; 5. V-shaped drainage groove; 6. Drainage groove opening; 7. Rail support platform; 8. Lifting pre-embedded sleeve; 9. Stray current terminal; 10. Fastener sleeve; 11. Shock-absorbing pad; 12. Positioning boss. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a track slab for vibration reduction in urban rail transit, comprising a slab body 1, with limiting grooves 2 at both ends of the slab body 1, a positioning protrusion 3 at one end of the slab body 1 located on both sides of the limiting groove 2, and a positioning groove 4 at the other end of the slab body 1 located on both sides of the limiting groove 2. The positioning protrusions 3 and the positioning grooves 4 are matched. The outer ends of the positioning protrusions 3 are chamfered with rounded corners on both sides to ensure that the positioning protrusions 3 can be smoothly inserted into the positioning grooves 4. The width of the positioning protrusions 3 and the width of the positioning grooves 4 are matched to ensure the stability of the two track slabs after they are joined end to end. The height of the upper surface of the slab body 1 gradually decreases from the middle to both sides. V-shaped drainage grooves 5 are symmetrically provided on both sides of the upper surface of the slab body 1. A drainage groove opening 6 is provided on the upper surface of the slab body 1 located in the middle of the V-shaped drainage grooves 5. The V-shaped drainage grooves 5 extend to the adjacent sides of the slab body 1. The distance between the edges gradually increases from the middle of the V-shaped drainage groove 5 towards both ends. Two rows of rail support platforms 7 are symmetrically arranged on both sides of the upper surface of the plate 1 to realize the installation of the rail on the upper surface of the rail support platform 7. Each rail support platform 7 is embedded with a fastener sleeve 10 to realize the connection with the rail. Several lifting pre-embedded sleeves 8 are arranged on both sides of the plate 1 to facilitate the lifting of the plate 1 by a crane and hook, thereby realizing the laying of the track slab. Stray current terminals 9 are arranged at the four corners of the plate 1 to prevent and reduce the corrosion of stray current on subway facilities and the surrounding environment. The stray current terminals 9 are all located on the outer side of the corresponding V-shaped drainage groove 5. Rainwater sliding down the upper surface of the plate 1 is discharged through the V-shaped drainage groove 5, reducing the contact between rainwater and stray current terminals 9. The lower surface of the plate 1 is attached with shock-absorbing pads 11 to improve the shock absorption effect of the track slab and reduce noise.

[0022] Manufacturing Method and Principle: A plate 1 is produced by casting using a mold. One end of the plate 1 has two positioning protrusions 3, and the other end has two positioning grooves 4 that match the positioning protrusions 3. The height of the upper surface of the plate 1 gradually decreases from the middle to both sides. V-shaped drainage grooves 5 and drainage openings 6 are pre-reserved on both sides of the upper surface of the plate 1. Two rows of symmetrically arranged rail support platforms 7 are also provided on the upper surface of the plate 1. Each rail support platform 7 has a pre-embedded fastener sleeve 10, resulting in a track slab. Construction Method: A concrete adjustment layer is laid on the base. Positioning protrusions 12 are set at intervals on the concrete adjustment layer. Two plates 1 are joined end-to-end, so that the positioning protrusion 3 of one plate 1 is inserted into the positioning groove 4 of the other plate 1. Simultaneously, the limiting grooves 2 of the two plates 1 are precisely positioned and matched with the positioning protrusions 12 on the concrete adjustment layer. Figure 4 As shown. When it rains, rainwater flows along the upper surface of the slab 1 to both sides, and finally moves towards the middle through the V-shaped drainage groove 5 and is discharged from the drainage outlet 6. This utility model has a reasonable structure. The two ends of the slab 1 are respectively provided with positioning protrusions 3 and positioning grooves 4. During construction, a limiting groove 2 is provided at the connection between the two slabs 1 to cooperate with the positioning protrusions 12 of the concrete adjustment layer, which greatly improves the connection stability between the track slab and the concrete adjustment layer. On the other hand, the two slabs 1 are connected by the positioning protrusions 3 and positioning grooves 4, which greatly improves the connection stability between two adjacent track slabs. At the same time, the height of the upper surface of the slab 1 gradually decreases from the middle position to both sides. V-shaped drainage grooves 5 and drainage outlets 6 are reserved on both sides of the upper surface of the slab 1. On the one hand, this prevents water from accumulating on the upper surface of the slab 1, thereby ensuring the service life of the track slab. On the other hand, the V-shaped drainage grooves 5 and drainage outlets 6 facilitate the centralized drainage to both sides.

[0023] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0024] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A track slab for vibration damping in urban rail transit, characterized in that: The plate includes a plate (1), with limiting grooves (2) at both ends. A positioning protrusion (3) is provided at one end of the plate (1) on both sides of the limiting groove (2), and a positioning groove (4) is provided at the other end of the plate (1) on both sides of the limiting groove (2). The positioning protrusion (3) and the positioning groove (4) are matched. The height of the upper surface of the plate (1) gradually decreases from the middle position to both sides. A V-shaped drainage groove (5) is symmetrically provided on the upper surface of the plate (1) on both sides. A drainage slot (6) is provided on the upper surface of the plate (1) at the middle position of the V-shaped drainage groove (5). The distance from the V-shaped drainage groove (5) to the adjacent side of the plate (1) gradually increases from the middle position of the V-shaped drainage groove (5) to both ends. Two rows of support platforms (7) are symmetrically provided on both sides of the upper surface of the plate (1).

2. The track slab for vibration reduction in urban rail transit according to claim 1, characterized in that: Several lifting pre-embedded sleeves (8) are provided on both sides of the plate (1).

3. The track slab for vibration reduction in urban rail transit according to claim 1, characterized in that: Stray current terminals (9) are provided at the four corners of the plate (1), and the stray current terminals (9) are all located on the outside of the corresponding V-shaped drainage groove (5).

4. A track slab for vibration reduction in urban rail transit according to claim 1, characterized in that: Each of the aforementioned rail support platforms (7) is equipped with a fastener sleeve (10).

5. A track slab for vibration reduction in urban rail transit according to claim 1, characterized in that: Both sides of the outer end of the positioning protrusion (3) are provided with arc-shaped chamfers, and the width of the positioning protrusion (3) matches the width of the positioning groove (4).

6. A track slab for vibration reduction in urban rail transit according to claim 1, characterized in that: The lower surface of the plate (1) is attached with a shock-absorbing pad (11).

Images