High-durability switch tie
By adopting a modular design for steel turnout sleepers and steel turnout rails, the problems of strength and installation and maintenance of turnout sleepers have been solved, thereby improving track stability and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SLEEPER TRACK EQUIPMENT CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
The existing turnout sleepers are inadequate in terms of strength, stability, and adaptability to installation and maintenance. Wooden turnout sleepers have low strength and are easily damaged, while concrete turnout sleepers have poor toughness and unstable connections, resulting in track instability and low construction efficiency.
The system uses steel turnout sleepers and steel turnout rails, connected by clamps, and features a detachable straight rail design, including connection methods such as inserts, connecting rail sleeves, and fixing bolts, forming a modular structure that enhances the stability and construction adaptability of the track.
It improves the durability and construction efficiency of turnout sleepers, ensures the long-term stability and flexible configuration of the track, and reduces maintenance costs.
Smart Images

Figure CN224280908U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of turnout sleeper technology, specifically a high-durability turnout sleeper. Background Technology
[0002] Turnout sleepers are special sleepers used on railway turnouts. They mainly bear the pressure from the rails in all directions, elastically distributing it to the track bed to effectively maintain the geometric shape of the track and ensure the smoothness and safety of train operation.
[0003] However, the following problems were found in the implementation of the relevant technologies:
[0004] In terms of strength and stability, wooden turnout sleepers have low strength, are not impact-resistant, and are easily damaged. Their simple connection leads to structural instability. Concrete turnout sleepers have poor toughness, are easily cracked by impact, and their fixed connection makes them weak in resistance to deformation. Neither of them can guarantee the long-term stability of the track. In terms of installation and maintenance adaptability, the existing turnout sleeper components are fixedly connected, making installation and adjustment difficult and maintenance costs high. They also have low modularity, making them difficult to configure flexibly and unable to adapt to complex tracks, thus limiting construction efficiency. Utility Model Content
[0005] To address the problems mentioned in the background section, this invention provides a high-durability turnout sleeper, which offers advantages such as durability and convenient installation and maintenance. By employing a steel turnout sleeper body and a steel turnout rail body with a secure connection, this invention avoids the problem of short track lifespan. Furthermore, the detachable design of the straight rail body prevents any impact on construction efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-durability turnout sleeper, comprising a steel turnout sleeper body, a steel turnout rail body symmetrically fixed on the upper surface of the steel turnout sleeper body, and a turning branch component symmetrically arranged inside the steel turnout rail body, with grooves symmetrically opened inside the steel turnout rail body, and turning branch slots opened between the turning branch component and the steel turnout rail body support.
[0007] Preferably, a straight rail body is detachably provided on one side of the steel turnout rail body, and a straight sleeper body is detachably provided on the lower side of the two corresponding straight rail bodies.
[0008] Preferably, a connecting pillow is fixedly connected between two adjacent steel turnout pillows, and the upper surface of the connecting pillow is fixedly connected to the corresponding steel turnout rail.
[0009] Preferably, the upper surface of the steel turnout sleeper is symmetrically welded with clamps, and the steel turnout rail is clamped between the corresponding clamps and the steel turnout sleeper.
[0010] Preferably, a plurality of connecting blocks are symmetrically fixed on the lower surface of the linear rail body, and the lower surface of the connecting blocks is movably fitted with the corresponding linear rail body. A curved steel column is fixed on the outer side of the connecting block, and a fixing plate is clamped on the outer surface of the curved steel column. The upper surface of the linear sleeper body is symmetrically provided with slots, and the fixing plate is clamped in the corresponding slot. A fixing bolt is threadedly connected between the fixing plate and the linear sleeper body. The upper surface of the linear sleeper body is symmetrically provided with bolt grooves for use with the fixing bolts.
[0011] Preferably, a connecting sleeve is fitted at the end of the steel fork rail body, and the connecting sleeve is fixedly fitted on the corresponding straight rail body.
[0012] Preferably, the end of the straight rail body is fixedly provided with a plug, and the plug is inserted into the steel turnout rail body.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model utilizes steel turnout sleepers and steel turnout rails. Steel has high strength and good toughness, enabling it to withstand the large loads and impacts generated during train operation. Compared to traditional wooden or concrete turnout sleepers, it is less prone to damage, extending the service life of the sleepers. Furthermore, the steel turnout sleepers are connected to the steel turnout rails via clamps, and adjacent steel turnout sleepers are connected by connecting sleepers. There are also multiple connection methods between the straight rails and the steel turnout rails, as well as between the straight sleepers. This robust structural design ensures that the entire turnout sleeper system is less prone to deformation or loosening during long-term use, guaranteeing the stability and durability of the track.
[0015] 2. This utility model adopts a detachable connection method between the straight rail body, the steel turnout rail body, and the straight sleeper body, such as the connection method of inserting columns, connecting sleeves, and fixing bolts. This facilitates adjustment and positioning during installation, and allows for quick disassembly and installation during later maintenance or component replacement, reducing maintenance time and costs. The entire turnout sleeper structure is composed of multiple relatively independent modules, such as the steel turnout sleeper body and the straight sleeper body. This modular design allows for flexible combination and configuration according to actual needs in different track laying scenarios, improving construction efficiency and adaptability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;
[0018] Figure 3 This is an exploded view of the connection structure between the steel fork sleeper and the straight sleeper of this utility model;
[0019] Figure 4 This is an exploded view of the connection structure between the linear sleeper body and the linear rail body of this utility model;
[0020] Figure 5 This utility model Figure 4 Enlarged view of the structure at point B in the middle.
[0021] In the diagram: 1. Steel turnout sleeper; 11. Steel turnout rail body; 12. Connecting sleeper; 13. Bifurcation component; 14. Groove; 15. Bifurcation slot; 16. Clamp; 2. Straight sleeper; 21. Straight rail body; 22. Connecting block; 23. Bending steel column; 24. Fixing plate; 25. Fixing bolt; 26. Bolt slot; 27. Clamping slot; 28. Insert column; 29. Connecting rail sleeve. Detailed Implementation
[0022] 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.
[0023] like Figures 1 to 5 As shown, this utility model provides a high-durability turnout sleeper, including a steel turnout sleeper body 1. A steel turnout rail body 11 is symmetrically fixed on the upper surface of the steel turnout sleeper body 1, and a fork-shaped component 13 is symmetrically arranged inside the steel turnout rail body 11. Grooves 14 are symmetrically opened inside the steel turnout rail body 11, and a fork-shaped groove 15 is opened between the fork-shaped component 13 and the support of the steel turnout rail body 11. When a train passes, the track can be branched according to the guidance of the fork-shaped groove 15 to meet the needs of different train travel directions.
[0024] Specifically, a straight rail body 21 is detachably provided on one side of the steel turnout rail body 11, and a straight sleeper body 2 is detachably provided on the lower side of the two corresponding straight rail bodies 21. The straight rail body 21 and the straight sleeper body 2 constitute the straight guide rail part.
[0025] Furthermore, a connecting pillow 12 is fixedly connected between two adjacent turnout sleepers 1, and the upper surface of the connecting pillow 12 is fixedly connected to the corresponding turnout rail 11. Adjacent turnout sleepers 1 are connected by the connecting pillow 12, and the upper surface of the connecting pillow 12 is fixed to the turnout rail 11, which further enhances the integrity and stability of the entire turnout sleeper structure.
[0026] Furthermore, clamps 16 are symmetrically welded to the upper surface of the steel turnout sleeper 1. The steel turnout rail 11 is clamped between the corresponding clamps 16 and the steel turnout sleeper 1. The steel turnout sleeper 1 serves as a basic support structure, and its upper surface is fixedly connected to the steel turnout rail 11 through the clamps 16, ensuring that the steel turnout rail 11 is stably installed on the steel turnout sleeper 1.
[0027] It is worth noting that several connecting blocks 22 are symmetrically fixed on the lower surface of the straight rail body 21, and the lower surface of the connecting blocks 22 is movably fitted with the corresponding straight rail body 21. A curved steel column 23 is fixed on the outer side of the connecting block 22, and a fixing plate 24 is clamped on the outer surface of the curved steel column 23. The upper surface of the straight sleeper 2 is symmetrically provided with slots 27, and the fixing plate 24 is clamped in the corresponding slots 27. A fixing bolt 25 is threadedly connected between the fixing plate 24 and the straight sleeper 2. The upper surface of the straight sleeper 2 is symmetrically provided with bolt slots 26 for use with the fixing bolt 25. The connecting blocks 22 on the lower surface of the straight rail body 21 are movably fitted with the straight sleeper 2. The combination of the curved steel column 23 and the fixing plate 24, and the threaded connection between the fixing plate 24 and the straight sleeper 2 by the fixing bolt 25, further securely fix the straight rail body 21 to the straight sleeper 2, ensuring the stability of the train when it runs on the straight track.
[0028] It is worth noting that a connecting sleeve 29 is fitted at the end of the steel turnout rail body 11. The connecting sleeve 29 is fixedly fitted outside the corresponding straight rail body 21. The connecting sleeve 29 is fitted at the end of the steel turnout rail body 11 and outside the straight rail body 21, which strengthens the connection between the two.
[0029] It is worth mentioning that the end of the straight rail body 21 is fixedly provided with a plug 28, and the plug 28 is inserted into the steel turnout rail body 11. The straight rail body 21 is detachably set on one side of the steel turnout rail body 11. The plug 28 at the end is inserted into the steel turnout rail body 11 to achieve preliminary positioning and connection.
[0030] Working principle: This high-durability turnout sleeper mainly consists of a steel turnout sleeper body 1, a steel turnout rail body 11, a straight rail body 21, a straight sleeper body 2, and a connecting sleeper body 12. The steel turnout sleeper body 1 serves as the basic support structure, and its upper surface is fixedly connected to the steel turnout rail body 11 through a clamp 16, ensuring that the steel turnout rail body 11 is stably installed on the steel turnout sleeper body 1. Adjacent steel turnout sleepers 1 are connected by connecting sleepers 12, and the upper surface of the connecting sleeper body 12 is fixed to the steel turnout rail body 11, further enhancing the integrity and stability of the entire turnout sleeper structure.
[0031] A bifurcation component 13 is symmetrically arranged inside the steel turnout rail body 11. A bifurcation groove 15 is formed between the bifurcation component 13 and the steel turnout rail body 11. When the train passes, the track can be bifurcation function can be realized according to the guidance of the bifurcation groove 15 to meet the needs of different train travel directions.
[0032] The straight rail body 21 is detachably installed on one side of the turnout rail body 11. It is inserted into the turnout rail body 11 through the end plug 28 to achieve initial positioning and connection. At the same time, the connecting sleeve 29 is sleeved on the end of the turnout rail body 11 and the outside of the straight rail body 21 to strengthen the connection between the two. The connecting block 22 on the lower surface of the straight rail body 21 is movably fitted with the straight sleeper 2. The combination of the bent steel column 23 and the fixing plate 24, and the threaded engagement of the fixing plate 24 with the straight sleeper 2 through the fixing bolt 25, further and firmly fix the straight rail body 21 on the straight sleeper 2 to ensure the stability of the train when it runs on the straight track.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-durability turnout sleeper, comprising a steel turnout sleeper body (1), characterized in that: The upper surface of the steel fork sleeper (1) is symmetrically fixed with a steel fork rail body (11), and a fork component (13) is symmetrically arranged inside the steel fork rail body (11). A groove (14) is symmetrically opened inside the steel fork rail body (11), and a fork slot (15) is opened between the fork component (13) and the support of the steel fork rail body (11).
2. The high-durability turnout sleeper according to claim 1, characterized in that: A straight rail body (21) is detachably provided on one side of the steel turnout rail body (11), and a straight sleeper body (2) is detachably provided on the lower side of the two corresponding straight rail bodies (21).
3. The high-durability turnout sleeper according to claim 1, characterized in that: A connecting pillow (12) is fixedly connected between two adjacent steel turnout pillows (1), and the upper surface of the connecting pillow (12) is fixedly connected to the corresponding steel turnout rail (11).
4. A high-durability turnout sleeper according to claim 1, characterized in that: The upper surface of the steel turnout sleeper (1) is symmetrically welded with clamps (16), and the steel turnout rail (11) is clamped between the corresponding clamps (16) and the steel turnout sleeper (1).
5. A high-durability turnout sleeper according to claim 2, characterized in that: The lower surface of the linear rail (21) is symmetrically fixed with several connecting blocks (22), and the lower surface of the connecting blocks (22) is movably fitted with the corresponding linear rail (21). The outer side of the connecting blocks (22) is fixed with a curved steel column (23), and the outer surface of the curved steel column (23) is fitted with a fixing plate (24). The upper surface of the linear sleeper (2) is symmetrically provided with slots (27), and the fixing plate (24) is fitted in the corresponding slots (27). The fixing plate (24) and the linear sleeper (2) are threadedly connected with fixing bolts (25). The upper surface of the linear sleeper (2) is symmetrically provided with bolt slots (26) for use with fixing bolts (25).
6. A high-durability turnout sleeper according to claim 2, characterized in that: The end of the steel fork rail body (11) is fitted with a connecting rail (29), which is fixedly fitted outside the corresponding straight rail body (21).
7. A high-durability turnout sleeper according to claim 2, characterized in that: The end of the straight rail body (21) is fixedly provided with a plug (28), and the plug (28) is inserted into the steel turnout rail body (11).