A concrete sleeper anchoring structure

Abstract

The utility model relates to train track technical field, concretely is a kind of concrete sleeper anchoring structure, first limiting slot is set in base, first elastic plate for bearing track component is arranged in the bottom center of first limiting slot, and the abutment of support plate is between the both sides of first elastic plate and the both sides of first limiting slot inner wall, the top of each support plate is separately provided with first pressing plate, and the side of first pressing plate abuts on the bottom flange of track component, the top of each first pressing plate is provided with second pressing plate, and the both sides of second pressing plate abut on the vertical web of track component and first limiting slot inner wall respectively, the side of second pressing plate and the elastic plate are clamped on the upside and downside of the bottom of track component, first threaded hole is set in the center of each second pressing plate, first pressing plate, support plate center, and the inner bottom of first limiting slot is provided with two first threaded holes, and first anchor rod is fixedly connected in the first threaded hole by thread.

Description

Technical Field

[0001] This utility model relates to the field of train track technology, specifically to a concrete sleeper anchoring structure. Background Technology

[0002] The track system is the core infrastructure of railways and urban rail transit. Among them, sleepers or bridge sleepers and their anchoring structures are key components that bear the rails, maintain the track gauge, and transfer the enormous pressure from the rails to the track bed. Traditional concrete sleeper anchoring structures typically use methods such as pre-embedded bolt sleeves and elastic clips to fix the rails to the sleepers.

[0003] However, existing anchoring technologies suffer from insufficient anchoring stability: under long-term, high-frequency, and heavy-load impact vibrations of trains, anchor bolts are prone to fatigue loosening or even being pulled out, leading to changes in track gauge or track failure, which seriously threatens train operation safety. Utility Model Content

[0004] This utility model provides a concrete sleeper anchoring structure, the purpose of which is to solve the technical problem of insufficient protective stability of existing anchoring structures.

[0005] This utility model provides a concrete sleeper anchoring structure, including two track components and a sleeper. Each sleeper has a base fixedly connected to both ends. The bottom of each track component is disposed within the base. A first limiting groove is provided on the base. A first elastic plate for supporting the track component is provided at the center of the bottom of the first limiting groove. Support plates abut against the sides of the first elastic plate and the sides of the inner wall of the first limiting groove. A first pressure plate is provided at the top of each support plate. One side of the first pressure plate abuts against the bottom flange of the track component. A second pressure plate is provided at the top of each first pressure plate. The sides of the second pressure plate abut against the vertical web of the track component and the inner wall of the first limiting groove. One side of the second pressure plate and the elastic plate clamp the upper and lower sides of the bottom flange of the track component. A first threaded hole is provided at the center of each second pressure plate, the first pressure plate, and the center of each support plate. Two first threaded holes are provided at the bottom of the first limiting groove. A first anchor rod is fixedly connected to each of the first threaded holes by threads. An external thread that meshes with the first threaded hole is provided on the side surface of the first anchor rod.

[0006] Furthermore, the base has two frustum-shaped through slots, and a frustum-shaped threaded tube is provided in the through slots. The threaded tube has a first threaded hole, and the bottom of the first anchor rod is fixedly connected to the threaded tube by threads.

[0007] Furthermore, a second limiting groove is provided on the upper surface of the second pressure plate, the second limiting groove is connected to the top of the first threaded hole, and a first limiting block is fixedly connected to the top of the first anchor rod, the first limiting block being disposed in the second limiting groove.

[0008] Furthermore, the base has a third limiting groove on both sides, the first pressure plate passes through the third limiting groove, each first pressure plate and each support plate has a plurality of second threaded holes, the first limiting groove has a plurality of second threaded holes, each second threaded hole is fixedly connected to a second anchor rod by threads, and the side surface of the second anchor rod has an external thread that meshes with the second threaded hole.

[0009] Furthermore, each of the first pressure plates is fixedly connected to a second limiting block at the end away from the track component, and the length of the first pressure plate is equal to the sum of the lengths of the third limiting groove and the support plate.

[0010] Furthermore, a third limiting block is fixedly connected to each of the two sides of the upper surface of the support plate that are perpendicular to the track component. The third limiting block is perpendicular to the track component. The width of the first pressure plate is equal to the difference between the width of the support plate and the width of the two third limiting blocks. Each first pressure plate is disposed between the two third limiting blocks.

[0011] Furthermore, one end of each of the third limiting blocks abuts against the inner wall of the first limiting groove, and the other end of each of the third limiting blocks abuts against the bottom flange of the track component, with the bottom flange of the track component clamped between the third limiting blocks on each of the support plates.

[0012] Furthermore, the upper surface of the first pressure plate is provided with a plurality of fourth limiting grooves, and an elastic element is provided in the fourth limiting groove. The elastic element abuts against the lower surface of the second pressure plate and the upper surface of the second anchor rod.

[0013] Furthermore, a fifth limiting groove is formed on the upper edge of the bottom flange of the track component, and a fourth limiting block is fixedly connected to the upper edge of the side of the first pressure plate facing the track component. The fourth limiting block abuts against the fifth limiting groove, and the fifth limiting groove matches the fourth limiting block. The upper surface of the fourth limiting block abuts against the lower surface of the second pressure plate.

[0014] Furthermore, a second elastic plate is fixedly connected to the side of the second pressure plate near the track component, and the second elastic plate abuts against the vertical web of the track component.

[0015] This utility model has at least the following beneficial effects:

[0016] This invention provides a concrete sleeper anchoring structure. A first elastic plate is installed at the center of the bottom of the first limiting groove, directly abutting the lower surface of the track component. This effectively absorbs and buffers vertical impacts and vibrations from the track component, providing the first layer of shock absorption. Support plates are installed on both sides of the first elastic plate, providing solid lateral support for the track component and preventing lateral swaying. Together with the first elastic plate, they form a complete bottom support surface, ensuring uniform stress distribution and preventing stress concentration.

[0017] This invention provides a concrete sleeper anchoring structure, which uses a double-layer pressure plate structure consisting of a first pressure plate and a second pressure plate to press the bottom flange of the track component. The first and second pressure plates are firmly connected to the base through a first anchor rod, forming a strong downward pressure that tightly anchors the track component to the base.

[0018] This utility model provides a concrete sleeper anchoring structure, in which the first limiting block matches the second limiting groove on the second pressure plate, which can effectively prevent the first anchor rod from rotating or loosening after tightening, thus playing a reliable locking role. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a concrete sleeper anchoring structure according to the present invention.

[0020] Figure 2 This is an exploded view of a concrete sleeper anchoring structure according to the present invention.

[0021] Figure 3 This is a half-sectional view of the base of a concrete sleeper anchoring structure according to the present invention.

[0022] In the diagram: 1. Base; 2. Track component; 3. First limiting groove; 4. First elastic plate; 5. Support plate; 6. First pressure plate; 7. Second pressure plate; 8. First threaded hole; 9. First anchor rod; 10. Through groove; 11. Threaded pipe; 12. Second limiting groove; 13. First limiting block; 14. Third limiting groove; 15. Second limiting block; 16. Third limiting block; 17. Fourth limiting groove; 18. Elastic element; 19. Second threaded hole; 20. Second anchor rod; 21. Second elastic plate; 22. Fifth limiting groove; 23. Fourth limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a concrete sleeper anchoring structure, including a track component 2 and a sleeper. The sleeper is integrally connected to a base 1 at both ends. The track component 2 is an I-beam track, and is perpendicular to the base 1. A first limiting groove 3 is provided on the base 1. Two first threaded holes 8 are provided at the bottom of the first limiting groove 3, each symmetrically arranged within the groove. A first elastic plate 4 is provided within the first limiting groove 3, located at the center of the bottom surface. The upper surface of the first elastic plate 4 abuts against the lower surface of the track component 2. Support plates 5 abut against both sides of the first elastic plate 4. The side of each support plate 5 away from the first elastic plate 4 abuts against the sidewall of the first limiting groove 3. The sum of the lengths of the two support plates 5 and the first elastic plate 4 is equal to the length of the first limiting groove 3; a first pressure plate 6 is provided on the upper surface of each support plate 5, and a first threaded hole 8 is provided in the center of the first pressure plate 6. The side of each first pressure plate 6 near the bottom flange of the track component 2 abuts against the bottom flange of the track component 2. A second pressure plate 7 is provided on the upper surface of the first pressure plate 6, and a first threaded hole 8 is provided in the center of the second pressure plate 7. The first pressure plate 6, the second pressure plate 7, the support plate 5 and the first threaded hole 8 of the first limiting groove 3 are interconnected. A first anchor rod 9 is fixedly connected in the first threaded hole 8 by threads. One side of the second pressure plate 7 is clamped to the upper and lower sides of the bottom flange of the track component 2 by the first elastic plate 4.

[0025] By setting a first elastic plate 4 at the bottom center of the first limiting groove 3, which directly abuts against the lower surface of the track component 2, the vertical impact and vibration from the track component 2 can be effectively absorbed and buffered, which is the first layer of shock absorption. Support plates 5 are set on both sides of the first elastic plate 4, which not only provide solid lateral support for the track component 2 and prevent it from swaying left and right, but also together with the first elastic plate 4 form a complete bottom support surface, ensuring the uniformity of stress distribution and avoiding stress concentration.

[0026] The bottom flange of the track component 2 is pressed tightly by the double-layer pressure plate structure formed by the first pressure plate 6 and the second pressure plate 7. The first pressure plate 6 and the second pressure plate 7 are firmly connected to the base 1 by the first anchor rod 9, forming a strong downward pressure that firmly anchors the track component 2 to the base 1.

[0027] The first limiting block 13 matches the second limiting groove 12 on the second pressure plate 7, which can effectively prevent the first anchor rod 9 from rotating or loosening after tightening, thus playing a reliable locking role.

[0028] In this embodiment of the invention, two through slots 10 are formed in the base 1. Each through slot 10 is a frustum-shaped hollow, and a threaded tube 11 abuts within the through slot 10. The outer side of the threaded tube 11 is frustum-shaped, and the diameter of the top of the threaded tube 11 is smaller than the diameter of the bottom of the threaded tube 11. The inner side of the threaded tube 11 is cylindrical and hollow. A first threaded hole 8 is formed within the threaded tube 11. When the first anchor rod 9 passes through the first threaded hole 8, it tightens the second pressure plate 7 and the base 1, and applies an upward pulling force to the base 1 through the frustum-shaped threaded tube 11, forming a tension effect and improving the stability of the anchoring structure. The frustum-shaped threaded tube 11 cooperates with the frustum-shaped through slots 10 in the base 1. When the first anchor rod 9 is tightened, an upward lifting force is generated on the base 1 through the frustum-shaped inclined surface of the threaded tube 11.

[0029] As an optional embodiment, each of the second pressure plates 7 has a second limiting groove 12 at its center, which is located at the top of the first threaded hole 8. A first limiting block 13 is fixedly connected to the top of the first anchor rod 9. The first limiting block 13 matches the second limiting groove 12. The first limiting block 13 can be a frustum shape (narrower at the bottom and wider at the top) or a cylinder shape, both of which can create a tension effect with the first threaded tube 11. By applying downward pressure to the track through the second pressure plates 7, this tension effect created by "downward pressure" and "upward lifting" generates prestress inside the anchoring system, greatly enhancing the pull-out resistance of the anchor rod and the fatigue resistance of the entire anchoring structure, effectively preventing bolt loosening and structural failure under long-term vibration loads.

[0030] In this embodiment of the invention, a third limiting groove 14 is provided on each side of the base 1. The third limiting groove 14 penetrates the outer side of the base 1 and the inner wall of the first limiting groove 3. The difference between the height of the bottom of the third limiting groove 14 and the height of the bottom of the first limiting groove 3 is equal to the height of the support plate 5. The length of the first pressure plate 6 is equal to the sum of the length of the third limiting groove 14 and the length of the support plate 5. The side of the first pressure plate 6 away from the track component 2 passes through the third limiting groove 14. The third limiting groove 14 on the base 1 cooperates with the first pressure plate 6 inserted therein, and is limited externally by the second limiting block 15, ensuring that the first pressure plate 6 will not move laterally during installation and use, thus ensuring the continuous effectiveness of the clamping force.

[0031] As an optional embodiment, a second limiting block 15 is connected to the side of the first pressure plate 6 away from the track component 2, and the vertical cross-sectional area of ​​the second limiting block 15 is larger than the vertical cross-sectional area of ​​the third limiting groove 14.

[0032] In this embodiment of the invention, each of the support plates 5 has a third limiting block 16 fixedly connected to its two perpendicular edges to the track component 2. The first pressure plate 6 is disposed between the two limiting blocks. The two sides of each third limiting block 16 abut against the bottom flange of the track component 2 and the inner wall of the first limiting groove 3, respectively. The third limiting blocks 16 at the top of the two support plates 5 clamp the first part of the track component. The third limiting blocks 16 clamp the bottom flange of the track component 2 from both sides, effectively limiting the horizontal displacement of the track.

[0033] As an optional embodiment, the width of the first pressure plate 6 is smaller than the width of the support plate 5, and each of the first pressure plates 6 is clamped between the corresponding third limiting blocks 16.

[0034] As an implementable example, the upper surface of the first pressure plate 6 has multiple fourth limiting grooves 17, each containing an elastic element 18. Multiple second threaded holes 19 are formed within the fourth limiting grooves 17, the support plate 5, and the first limiting groove 3. Second anchor rods 20 are threadedly connected to the second threaded holes 19. The elastic element 18 abuts against the lower surface of the second pressure plate 7 and the upper surface of the second anchor rod 20. By creating the fourth limiting grooves 17 on the first pressure plate 6 and providing the elastic element 18 and the second anchor rods 20, an auxiliary and adjustable anchoring method is provided. The operator can tighten the second anchor rods 20 as needed, applying additional, more elastic pressure to the second pressure plate 7 through the elastic element 18. This adds another layer of shock absorption, further improving the system's shock absorption performance and adaptability. The array arrangement of the second anchor rods 20 makes the distribution of this auxiliary pressure more uniform.

[0035] In one possible implementation in practical use, each second threaded hole 19 is arranged in a ring array along the first threaded hole 8, and each second threaded hole 19 is uniformly opened.

[0036] In this embodiment of the invention, a second elastic plate 21 is fixedly connected to the side of the second pressure plate 7 near the track component 2, and the second elastic plate 21 abuts against the vertical web of the track component 2. The combination of the second pressure plate 7 and the second elastic plate 21 ensures that the second elastic plate 21 tightly abuts against the vertical web of the track component 2, forming a secondary clamping and shock absorption for the track. This not only further restricts the longitudinal and lateral movement of the track but also absorbs vibrations from the side of the track, improving overall stability.

[0037] The upper edge of the bottom flange of the track component 2 is provided with a fifth limiting groove 22. The upper edge of the side of the first pressure plate 6 facing the track component 2 is fixedly connected with a fourth limiting block 23. The fourth limiting block 23 abuts against the fifth limiting groove 22. The fifth limiting groove 22 matches the fourth limiting block 23. The upper surface of the fourth limiting block 23 abuts against the lower surface of the second pressure plate 7, assisting the fourth limiting block 23 in pressing the track component 2.

Claims

1. A concrete sleeper anchoring structure, comprising two track components (2) and a sleeper, wherein each end of the sleeper is fixedly connected to a base (1), and the bottom of each track component (2) is disposed within the base (1), characterized in that, The base (1) is provided with a first limiting groove (3). A first elastic plate (4) for supporting the track component (2) is provided at the bottom center of the first limiting groove (3). Support plates (5) are abutted between the two sides of the first elastic plate (4) and the two sides of the inner wall of the first limiting groove (3). A first pressure plate (6) is provided on the top of each support plate (5). One side of the first pressure plate (6) abuts against the bottom flange of the track component (2). A second pressure plate (7) is provided on the top of each first pressure plate (6). The two sides of the second pressure plate (7) abut against the track component. (2) The vertical web plate and the inner wall of the first limiting groove (3) are clamped on one side of the second pressure plate (7) and the elastic plate on the upper and lower sides of the bottom flange of the track component (2). A first threaded hole (8) is opened in the center of each second pressure plate (7), the first pressure plate (6), and the center of the support plate (5). Two first threaded holes (8) are opened in the bottom of the first limiting groove (3). A first anchor rod (9) is fixedly connected in the first threaded hole (8) by a thread. An external thread that meshes with the first threaded hole (8) is opened on the side surface of the first anchor rod (9).

2. The concrete sleeper anchoring structure according to claim 1, characterized in that, The base (1) has two frustum-shaped through slots (10), and a frustum-shaped threaded tube (11) is provided in the through slots (10). A first threaded hole (8) is provided in the threaded tube (11), and the bottom of the first anchor rod (9) is fixedly connected to the threaded tube (11) by threads.

3. The concrete sleeper anchoring structure according to claim 2, characterized in that, The upper surface of the second pressure plate (7) is provided with a second limiting groove (12), which is connected to the top of the first threaded hole (8). The top of the first anchor rod (9) is fixedly connected with a first limiting block (13), which is located in the second limiting groove (12).

4. The concrete sleeper anchoring structure according to claim 1, characterized in that, The base (1) has a third limiting groove (14) on both sides. The first pressure plate (6) passes through the third limiting groove (14). Each first pressure plate (6) and each support plate (5) has a plurality of second threaded holes (19). The first limiting groove (3) has a plurality of second threaded holes (19). Each second threaded hole (19) is fixedly connected to a second anchor rod (20) by a thread. The side surface of the second anchor rod (20) has an external thread that meshes with the second threaded hole (19).

5. A concrete sleeper anchoring structure according to claim 4, characterized in that, Each of the first pressure plates (6) has a second limiting block (15) fixedly connected to one end away from the track component (2), and the length of the first pressure plate (6) is equal to the sum of the lengths of the third limiting groove (14) and the support plate (5).

6. A concrete sleeper anchoring structure according to claim 4, characterized in that, The upper surface of the support plate (5) is fixedly connected to the two sides of the track component (2) with third limiting blocks (16) respectively. The third limiting blocks (16) are arranged perpendicular to the track component (2). The width of the first pressure plate (6) is equal to the difference between the width of the support plate (5) and the width of the two third limiting blocks (16). Each first pressure plate (6) is arranged between the two third limiting blocks (16).

7. A concrete sleeper anchoring structure according to claim 6, characterized in that, One end of each of the third limiting blocks (16) abuts against the inner wall of the first limiting groove (3), and the other end of each of the third limiting blocks (16) abuts against the bottom flange of the track component (2). The bottom flange of the track component (2) is clamped between the third limiting blocks (16) on each of the support plates (5).

8. A concrete sleeper anchoring structure according to claim 4, characterized in that, The upper surface of the first pressure plate (6) is provided with a plurality of fourth limiting grooves (17), and an elastic element (18) is provided in the fourth limiting groove (17). The elastic element (18) abuts against the lower surface of the second pressure plate (7) and the upper surface of the second anchor rod (20).

9. A concrete sleeper anchoring structure according to claim 1, characterized in that, The track component (2) has a fifth limiting groove (22) on the upper edge of its bottom flange. The first pressure plate (6) has a fourth limiting block (23) fixedly connected to the upper edge of the side facing the track component (2). The fourth limiting block (23) abuts against the fifth limiting groove (22). The fifth limiting groove (22) matches the fourth limiting block (23). The upper surface of the fourth limiting block (23) abuts against the lower surface of the second pressure plate (7).

10. A concrete sleeper anchoring structure according to claim 1, characterized in that, The second pressure plate (7) is fixedly connected to a second elastic plate (21) on the side near the track component (2), and the second elastic plate (21) abuts against the vertical web of the track component (2).

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