Elastic fastener system for railway turnout

Abstract

The utility model discloses an elastic fastener system for a railway turnout. The elastic fastener system comprises a supporting cushion layer, a plurality of sets of elastic strip fasteners and a plurality of sets of anti-theft fasteners. The supporting cushion layer is used for being laid on an under-rail foundation, the upper surface of the supporting cushion layer is provided with a rail bottom slope with the transverse gradient not smaller than 1: 20, and a fit clearance which correspondingly deforms according to the stress is formed in the supporting cushion layer and used for reducing vibration and noise. The multiple sets of elastic strip fasteners are used for being arranged on the two sides of the steel rail correspondingly and connected with the rail cant so as to be used for pressing the two sides of the steel rail to the rail cant, and each elastic strip fastener is further designed in an anti-theft mode so that the elastic strip fasteners can be prevented from being unlocked and loosened easily. The multiple sets of anti-theft fasteners are used for being arranged on the two sides of the supporting cushion layers in the width direction correspondingly and used for penetrating through the supporting cushion layers on the corresponding sides to extend into the under-rail foundation so that the supporting cushion layers and the under-rail foundation can be detachably fixed, and all the anti-theft fasteners can be designed in an anti-theft mode. The anti-theft device can further reduce vibration and noise, improves abrasion of the steel rail, is difficult to disassemble and assemble, and can prevent theft.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit turnouts, in particular to an elastic fastener system for railway turnouts. Background Art

[0002] Railway turnouts are key equipment that allow rolling stock to enter or cross from one line to another, enabling them to turn or cross lines. The rail fastener system is a crucial component of railway turnouts. Currently, turnout rail fasteners primarily utilize a split-structure elastic clamping method, such as patents CN218812904U, a city rail turnout fastener system; CN218932739U, a turnout fastener system with a large height adjustment capacity; CN114790668A, a low-profile vibration-damping fastener with side guards; CN114687255A, a padless turnout rail fastener system; and CN216739072U, a high-axle-load turnout fastener. While the types of turnout fastener systems vary, they primarily consist of three components: spring bars, elastic base plates, and anchor connectors. In the existing domestic turnout fastener system, the spring clip mostly adopts ω-type spring clip or E-type spring clip, which uses the bending and torsional deformation of the spring clip material to follow the deformation of the rail and continuously clamp it; the elastic base plate is made of rubber or other elastomers, which is the main component of the fastener system that directly supports the rail and evenly transfers the vertical and lateral loads to the foundation under the turnout sleeper; the function of the anchor connector is to fix the elastic base plate on the turnout sleeper, and to facilitate installation and replacement, and at the same time requires a certain lateral adjustment function.

[0003] The disadvantages of the existing technology are as follows:

[0004] 1. Domestic turnout spring clips are relatively limited in type, primarily Type II and Type III. Type II spring clips are bulky and cannot be installed in confined turnout areas, necessitating the use of Type III spring clips or rigid fasteners. Rigid fasteners reduce turnout rigidity, while the localized use of Type III spring clips increases maintenance and repair workload. Type III spring clips are boltless, requiring high manufacturing and assembly precision, and cannot be adjusted upwards. Consequently, their use is limited, with limited use on national railways and more widespread adoption in urban rail transit.

[0005] 2. Gauge blocks are commonly used in domestic turnout fastener systems. The purpose is to achieve the purpose of lateral adjustment of track gauge and support by setting gauge blocks of different thicknesses. This structure was a reasonable practice in the past, but with the continuous improvement of turnout product processing technology and precision, the role of gauge blocks has become increasingly weakened. There are many gauge blocks in large quantities and specifications, and on-site installation errors that are difficult to detect often occur, which also increases the workload of subsequent maintenance and repair. In addition, because gauge blocks require a certain amount of space, the installation of spring bars is often impossible in a small space, and the length of the pad is indirectly increased, which increases the manufacturing cost.

[0006] 3. In domestic turnout fastener systems, the iron pads mostly use a 1:40 rail bottom slope. The rails at this ratio are prone to wear.

[0007] 4. The bolts, nuts and other fasteners in the fastener system are all in the shape of an outer hexagon and can be disassembled and assembled using conventional tools. In certain social environments, they are prone to theft, which seriously affects the safety of turnout use. Utility Model Content

[0008] The utility model provides an elastic fastener system for railway turnouts, which solves the technical problems of the existing fastener system, namely, easy wear of the rail bottom slope rail, easy theft after the fastener system is disassembled, and weak vibration reduction and noise reduction effects of the fastener system.

[0009] The technical solutions adopted in this utility model are as follows:

[0010] A flexible fastener system for a railway turnout comprises: a supporting pad, multiple groups of spring clip fasteners and multiple groups of anti-theft fasteners; the supporting pad is used to be laid on a sub-rail foundation, and its upper surface has a rail bottom slope with a transverse slope of not less than 1:20 for supporting the rails and the spring clip fasteners, and the supporting pad has a matching gap that deforms accordingly according to the magnitude of the force for vibration and noise reduction; the multiple groups of spring clip fasteners are used to be arranged on both sides of the rail and connected to the rail bottom slope for respectively pressing the two sides of the rail against the rail bottom slope, and each spring clip fastener also adopts an anti-theft design to prevent it from being easily unlocked and loosened; the multiple groups of anti-theft fasteners are used to be arranged on both sides of the supporting pad in the width direction, and are used to penetrate the supporting pad on the corresponding side and then extend into the sub-rail foundation to detachably fix the supporting pad and the sub-rail foundation, and each anti-theft fastener also adopts an anti-theft design to prevent it from being easily unlocked and loosened.

[0011] Furthermore, the supporting cushion layer includes a pad and an under-plate pad stacked up and down in sequence; the upper surface of the pad has a rail bottom slope; the under-plate pad is used to be laid and supported on the foundation under the rail, and the under-plate pad is in wave-like contact with the pad to form a fitting gap between the two, thereby reducing vibration and reducing noise.

[0012] Furthermore, the upper surface of the cushion layer under the plate is an upper wavy surface arranged in a wavy shape; the lower surface of the pad is a lower wavy surface that cooperates with the upper wavy surface, and there is a matching gap between the concave and convex waves of the lower wavy surface and the upper wavy surface.

[0013] Furthermore, the wave lines of the upper wave curved surface extend in the transverse direction, longitudinal direction or oblique direction of the cushion layer under the plate; and the amplitudes of adjacent convex waves and concave waves on the upper wave curved surface deviating from the center line are the same or different.

[0014] Furthermore, the pad is an iron pad formed from steel material; the supporting pad also includes a rail underpad for laying on the upper surface of the iron pad, and the upper surface of the rail underpad is the rail bottom slope.

[0015] Furthermore, the anti-theft fastener includes a switch tie bolt and a spring washer mounted on the outer circle of the switch tie bolt; the screw rod of the switch tie bolt is used to vertically penetrate the supporting cushion layer and then extend into the sub-rail foundation to detachably fix the supporting cushion layer to the sub-rail foundation, and the bolt head of the switch tie bolt is specially shaped to prevent the switch tie bolt from being easily loosened after clamping the bolt head with conventional tools; the spring washer is used to press down the supporting cushion layer under the action of the bolt head.

[0016] Furthermore, an installation through hole is provided on the supporting cushion layer for the passage of anti-theft fasteners; the elastic fastener system for railway switches also includes a composite set installed in the installation through hole, and the anti-theft fastener extends into the foundation under the rail after passing through the composite set, so as to prevent the anti-theft fastener from direct contact and wear with the supporting cushion layer through the composite set, and fine-tune the supporting cushion layer along the width direction through the composite set.

[0017] Furthermore, the composite set includes a positioning sleeve and an eccentric sleeve that are sequentially fitted inside and outside; the anti-theft fastener is inserted through the positioning sleeve to position the supporting cushion layer through the positioning sleeve; the eccentric sleeve is eccentrically arranged in a millimeter series to fine-tune the position of the composite cushion layer relative to the anti-theft fastener.

[0018] Furthermore, the spring bar fastener includes a mounting seat fixed on the upper surface of the supporting cushion layer, a locking bolt vertically and threadedly connected to the mounting seat, an spring bar mounted on the locking screw and the mounting seat, a flat washer and a locking nut sequentially installed on the outer circle of the locking bolt; the locking nut is specially shaped to prevent the spring bar fastener from being easily loosened after clamping the locking nut with conventional tools; the flat washer is used to press the spring bar downward under the action of the locking nut located above it, so that the spring bar presses the rail leg on the corresponding side of the rail to the rail bottom slope.

[0019] Furthermore, the elastic fastener system for railway turnouts also includes an adjusting plate, which is used to be arranged between the elastic bar fastener and the side of the rail limb, and the adjusting plate is set in a millimeter-level series thickness.

[0020] The utility model has the following beneficial effects:

[0021] In the prior art, the supporting pad is elastically arranged to support the rails, and at the same time elastically reduces vibration and noise, so as to reduce the influence of the vibration of the rails on the foundation below the rails, reduce the stress on the rails and the foundation below the rails, thereby extending the life of the elastic fastener system, reducing the cost of repair and maintenance, and improving the operational stability of the system. In the present invention, the supporting pad is provided with a matching gap that can be deformed according to the magnitude of the stress on the supporting pad, based on the existing arrangement, thereby further enhancing the effect of the supporting pad, further reducing vibration and noise, extending the service life of the elastic fastener system as a whole, and greatly reducing the cost of repair and maintenance. protection costs and improve the stability of system operation; on the other hand, the upper surface of the supporting cushion has a rail bottom slope with a transverse slope of not less than :, and the rail is supported on the rail bottom slope. Experiments and theoretical analysis have shown that a rail bottom slope of not less than 1:20 has a significant effect on reducing rail wear and improving the wheel-rail relationship, and different rail bottom slopes have a great influence on the design of the fastener system; in addition, the spring clip fasteners and anti-theft fasteners both adopt an anti-theft design, which increases the difficulty of disassembly and assembly, and is used to prevent them from being easily disassembled and loosened by conventional tools, thereby achieving the anti-theft purpose and improving the stability and safety of the fastener system operation.

[0022] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the cross-sectional front view of the elastic fastener system for railway turnouts according to a preferred embodiment of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the main structure of the middle fork sleeper bolt;

[0026] Figure 3 yes Figure 2 Schematic diagram of the top view structure;

[0027] Figure 4 yes Figure 1 Schematic diagram of the top view of the locking nut.

[0028] Legend:

[0029] 10. Support cushion; 11. Pad; 12. Pad under the plate; 13. Pad under the rail; 20. Spring bar fastener; 21. Mounting seat; 22. Locking bolt; 23. Spring bar; 24. Flat washer; 25. Locking nut; 30. Anti-theft fastener; 31. Turnout sleeper bolt; 32. Spring washer; 40. Rail; 50. Composite set; 51. Positioning sleeve; 52. Eccentric sleeve. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0031] Reference Figure 1 A preferred embodiment of the present invention provides an elastic fastener system for railway turnouts, comprising: a support pad 10, multiple sets of spring clip fasteners 20, and multiple sets of anti-theft fasteners 30. The support pad 10 is laid on a foundation beneath the rails, and its upper surface has a rail bottom slope with a transverse slope of no less than 1:20, for supporting the rails 40 and the spring clip fasteners 20. The support pad 10 has a matching clearance that deforms according to the magnitude of the applied force to reduce vibration and noise. The multiple sets of spring clip fasteners 20 are arranged on either side of the rails 40 and connected to the rail bottom slope to respectively press the two sides of the rails 40 against the rail bottom slope. Each spring clip fastener 20 also employs an anti-theft design to prevent it from being easily unlocked and loosened. Multiple sets of anti-theft fasteners 30 are used to be arranged on both sides of the width direction of the supporting pad layer 10, so as to penetrate the supporting pad layer 10 on the corresponding side and extend into the sub-rail foundation to detachably fix the supporting pad layer 10 to the sub-rail foundation, and each anti-theft fastener 30 also adopts an anti-theft design to prevent it from being easily unlocked and loosened.

[0032] In the prior art, the supporting pad 10 is elastically arranged to support the rails, and at the same time elastically reduces vibration and noise, so as to reduce the impact of the vibration of the rails on the foundation below the rails, reduce the stress on the rails and the foundation below the rails, thereby extending the life of the elastic fastener system, reducing repair and maintenance costs, and improving the operational stability of the system. In the present invention, the supporting pad 10 is provided with a fitting gap therein that can be deformed according to the magnitude of the stress, based on the existing arrangement, thereby further enhancing the effect of the supporting pad 10, so as to further reduce vibration and noise, extend the overall service life of the elastic fastener system, and greatly reduce repair and maintenance costs. Improve the stability of system operation; on the other hand, the upper surface of the supporting pad 10 has a rail bottom slope with a transverse slope of not less than 1:20, and the rail 40 is supported on the rail bottom slope. Experiments and theoretical analysis have shown that a rail bottom slope of not less than 1:20 has a significant effect on reducing the wear of the rail 40 and improving the wheel-rail relationship, and different rail bottom slopes have a greater impact on the design of the fastener system; in addition, the spring bar fastener 20 and the anti-theft fastener 30 both adopt an anti-theft design, which increases the difficulty of disassembly and assembly, and is used to prevent them from being easily disassembled and loosened by conventional tools, thereby achieving the anti-theft purpose and improving the stability and safety of the fastener system operation.

[0033] Alternatively, as Figure 1 As shown, the support layer 10 comprises a stacked pad 11 and an under-slab pad 12. The upper surface of the pad 11 has a rail bottom slope. The under-slab pad 12 is used for laying and supporting the substructure under the rail. The under-slab pad 12 and the pad 11 form a wave-like contact pattern, creating a clearance between them to reduce vibration and noise.

[0034] In this optional solution, not shown in the figure, the upper surface of the plate bottom pad 12 is an upper wavy surface with a wavy setting. The lower surface of the pad 11 is a lower wavy surface that cooperates with the upper wavy surface, and there is a fitting gap between the concave and convex waves of the lower wavy surface and the upper wavy surface; in this optional solution, by setting the width and / or depth of the matching concave and convex waves, it is possible to make the matching concave and convex waves have a fitting gap set along the thickness direction of the supporting pad 10, and the size of the fitting gap changes with the force between the pad 11 and the plate bottom pad 12. If the pad 11 is subjected to a greater force, the fitting gap is smaller, and vice versa, the fitting gap is larger. Therefore, by setting the fitting gap, the vibration reduction and noise reduction functions of the supporting pad 10 are further increased, thereby improving the working stability of the fastener system and extending its service life.

[0035] Preferably, (not shown) the wavy lines of the upper wavy surface extend in the transverse, longitudinal, or oblique direction of the underlying layer 12 of the plate, i.e., the wavy lines of the upper wavy surface can extend in any direction, as long as the lower wavy surface is configured to match the upper wavy surface. In a specific embodiment of this preferred solution, the wavy lines of the upper wavy surface extend in a wavy shape in the transverse direction of the underlying layer 12 of the plate to reduce the difficulty of processing. The amplitudes of adjacent convex and concave waves on the upper wavy surface that deviate from the centerline are the same or different, as long as the lower wavy surface is configured to match the upper wavy surface. In a specific embodiment of this preferred solution, the amplitudes of adjacent convex and concave waves on the upper wavy surface that deviate from the centerline are the same, i.e., the wavy lines of the upper wavy surface are sine or cosine lines to reduce the difficulty of processing.

[0036] Preferably, if Figure 1 As shown, the backing plate 11 is an iron backing plate 11 made of steel material to improve the overall support stiffness of the support pad 10. Since the backing plate 11 is an iron backing plate 11 made of steel material, in order to prevent the rail 40 from hard contacting the backing plate 11, in the present invention, the support pad 10 also includes a rail underlay 13 for laying on the upper surface of the iron backing plate 11. The upper surface of the rail underlay 13 is the rail bottom slope, and the rail underlay 13 is made of plastic material.

[0037] Alternatively, as Figure 1 and Figure 2 As shown, the anti-theft fastener 30 includes a switch tie bolt 31 and a spring washer 32 mounted on the outer circumference of the switch tie bolt 31. The screw of the switch tie bolt 31 is used to vertically penetrate the support pad 10 and then extend into the substructure to removably secure the support pad 10 to the substructure. The bolt head of the switch tie bolt 31 is specially shaped to prevent the bolt 31 from being easily loosened by clamping the bolt head with conventional tools. The spring washer 32 is used to press down the support pad 10 under the action of the bolt head.

[0038] In this option, if Figure 3 As shown, the bolt head of the switch sleeper bolt 31 is in the shape of a cone extending in the axial direction, and its large end is fixedly connected to the top end of the screw, and the outer circle of the bolt head is also processed with a plurality of anti-theft grooves which are arranged in sequence along the circumferential direction and are concave. Each anti-theft groove extends along the height direction of the bolt head, and the width and / or depth of each anti-theft groove varies in the height direction of the bolt head, so that the bolt head is set in an irregular shape, which increases the difficulty of disassembly and assembly, and prevents the switch sleeper bolt 31 from being easily loosened after clamping the bolt head with conventional tools, thereby achieving the anti-theft purpose and improving the stability and safety of the fastener system operation.

[0039] Preferably, if Figure 1As shown, the support pad 10 also has mounting holes for the anti-theft fasteners 30. The railway switch elastic fastener system also includes a composite set 50 installed in the mounting holes. After the anti-theft fasteners 30 pass through the composite set 50, they extend into the substructure beneath the rail. This composite set 50 prevents direct contact and wear between the anti-theft fasteners 30 and the support pad 10, and allows for fine-tuning of the support pad 10 along its width. In this preferred embodiment, both ends of the backing plate 11 are machined to a certain thickness, and mounting holes for the composite set 50 are drilled at both ends.

[0040] In this preferred embodiment, Figure 1 As shown, the composite set 50 includes a positioning sleeve 51 and an eccentric sleeve 52 that are sequentially fitted inside and outside. The anti-theft fastener 30 is inserted into the positioning sleeve 51 to position the supporting cushion layer 10 through the positioning sleeve 51; during actual installation, the position of the anti-theft fastener 30 remains unchanged, so the supporting cushion layer 10 is positioned through the positioning sleeve 51. The eccentric sleeve 52 is eccentrically set in a millimeter series to fine-tune the position of the composite cushion layer relative to the anti-theft fastener 30; in this preferred embodiment, the eccentric sleeve 52 is eccentrically set in a millimeter series, that is, the eccentric sleeve 52 is eccentrically set, and when the eccentric sleeve 52 is manufactured, the eccentric thickness of the two adjacent eccentric sleeves 52 differs by 1mm, thereby improving its adaptability; during actual installation, the position of the anti-theft fastener 30 remains unchanged, so the position of the fixed anti-theft fastener 30 of the supporting cushion layer 10 can be adjusted by selecting eccentric sleeves 52 of different sizes to meet installation requirements.

[0041] Alternatively, as Figure 1 As shown, the spring bar fastener 20 includes a mounting base 21 fixed to the upper surface of the support pad 10, a locking bolt 22 vertically and threadedly connected to the mounting base 21, a spring bar 23 fitted over the locking screw and the mounting base 21, a flat washer 24 and a locking nut 25 sequentially mounted on the outer circumference of the locking bolt 22. The locking nut 25 is configured in a special shape to prevent the spring bar fastener 20 from being easily loosened after clamping the locking nut 25 with conventional tools; the flat washer 24 is used to press the spring bar 23 downward under the action of the locking nut 25 located above it, thereby causing the spring bar 23 to press the rail limb on the corresponding side of the rail 40 against the rail bottom slope. In this optional solution, if Figure 1 As shown, the spring bar 23 is a narrow ω-shaped spring bar with a width of less than 60 mm. Therefore, the spring bar 23 can also be installed in a narrow space in the fork area, reducing the application of rigid buckling.

[0042] In this option, if Figure 4 As shown, the cross-section of the locking nut 25 is triangular or irregular polygonal, which increases the difficulty of disassembly and assembly, and prevents the spring bar fastener 20 from being easily loosened after clamping the locking nut 25 with conventional tools, thereby achieving the anti-theft purpose and improving the stability and safety of the fastener system operation.

[0043] Optionally, and not shown, the railroad turnout elastic fastener system also includes an adjustment tab, positioned between the spring clip fastener 20 and the side edge of the rail limb 40, with the adjustment tab having a millimeter-scale thickness. This alternative eliminates the pre-set gauge blocks and uses spare 1mm and 2mm thick adjustment tabs, resolving the technical issues associated with using gauge blocks: "the large number and specifications of gauge blocks, the difficulty in detecting on-site installation errors, and the increased maintenance workload."

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An elastic fastener system for railway turnouts, characterized in that: include: A supporting cushion layer (10), a plurality of groups of spring bar fasteners (20) and a plurality of groups of anti-theft fasteners (30); The support cushion layer (10) is used for laying on the foundation under the rail, and its upper surface has a rail bottom slope with a transverse slope of not less than 1:20, so as to support the steel rail (40) and the spring bar fastener (20). The support cushion layer (10) has a matching gap that deforms according to the magnitude of the force applied, so as to reduce vibration and noise. A plurality of sets of spring bar fasteners (20) are respectively arranged on both sides of the rail (40) and connected to the rail bottom slope, so as to respectively press the two sides of the rail (40) against the rail bottom slope, and each spring bar fastener (20) also adopts an anti-theft design to prevent it from being easily unlocked and loosened; A plurality of sets of anti-theft fasteners (30) are arranged on both sides of the width direction of the supporting cushion layer (10) so as to penetrate the supporting cushion layer (10) on the corresponding side and then extend into the sub-rail foundation so as to detachably fix the supporting cushion layer (10) and the sub-rail foundation. Each anti-theft fastener (30) also adopts an anti-theft design to prevent it from being easily unlocked and loosened.

2. The elastic fastener system for railway turnout according to claim 1, characterized in that: The supporting cushion layer (10) comprises a cushion plate (11) and a cushion layer (12) stacked and laid in sequence above and below. The upper surface of the pad (11) has a rail bottom slope; The sub-plate cushion layer (12) is used for laying support on the sub-rail foundation, and the sub-plate cushion layer (12) is in wave-shaped contact with the pad (11) to form a matching gap therebetween, thereby reducing vibration and lowering noise.

3. The elastic fastener system for railway turnout according to claim 2, characterized in that: The upper surface of the underlayment layer (12) under the plate is an upper wavy curved surface arranged in a wavy shape; The lower surface of the pad (11) is a lower wavy curved surface that cooperates with the upper wavy curved surface, and there is a matching gap between the concave and convex waves of the lower wavy curved surface and the upper wavy curved surface.

4. The elastic fastener system for railway turnout according to claim 3, characterized in that: The wave lines of the upper wave curved surface extend in the transverse direction, longitudinal direction or oblique direction of the cushion layer (12) under the plate; The amplitudes of adjacent convex waves and concave waves on the upper wave surface that deviate from the center line are the same or different.

5. The elastic fastener system for railway turnout according to claim 1, characterized in that: The backing plate (11) is an iron backing plate (11) formed by steel material; The supporting pad layer (10) further comprises a rail underlay layer (13) for laying on the upper surface of the iron base plate (11), and the upper surface of the rail underlay layer (13) is a rail bottom slope.

6. The elastic fastener system for railway turnout according to claim 1, characterized in that: The anti-theft fastener (30) includes a switch tie bolt (31) and a spring washer (32) mounted on the outer circle of the switch tie bolt (31); The screw rod of the switch tie bolt (31) is used to vertically penetrate the supporting cushion layer (10) and then extend into the sub-rail foundation to detachably fix the supporting cushion layer (10) and the sub-rail foundation. The bolt head of the switch tie bolt (31) is specially shaped to prevent the switch tie bolt (31) from being easily loosened after the bolt head is clamped by conventional tools. The spring washer (32) is used to press down the supporting pad (10) under the action of the bolt head.

7. The elastic fastener system for railway turnout according to claim 1, characterized in that: The supporting cushion layer (10) is also provided with a mounting through hole for the anti-theft fastener (30) to pass through; The elastic fastener system for railway turnouts further comprises a composite set (50) installed in the installation through hole, wherein the anti-theft fastener (30) is inserted into the foundation under the rail after passing through the composite set (50), so as to prevent the anti-theft fastener (30) from directly contacting and abrading the supporting cushion layer (10) through the composite set (50), and to fine-tune the supporting cushion layer (10) along the width direction through the composite set (50).

8. The elastic fastener system for railway turnout according to claim 7, characterized in that: The composite sleeve (50) comprises a positioning sleeve (51) and an eccentric sleeve (52) which are sequentially fitted inside and outside. The anti-theft fastener (30) is inserted into the positioning sleeve (51) to position the supporting cushion layer (10) through the positioning sleeve (51); The eccentric sleeve (52) is set in a millimeter-level series eccentricity to fine-tune the position of the composite cushion layer relative to the anti-theft fastener (30).

9. The elastic fastener system for railway turnout according to claim 1, characterized in that: The spring bar fastener (20) comprises a mounting seat (21) fixed on the upper surface of the supporting cushion layer (10), a locking bolt (22) vertically and threadedly connected to the mounting seat (21), a spring bar (23) sleeved on the locking screw and the mounting seat (21), a flat washer (24) and a locking nut (25) sequentially mounted on the outer circle of the locking bolt (22); The locking nut (25) is specially shaped to prevent the spring clip fastener (20) from being easily loosened after the locking nut (25) is clamped by conventional tools; The flat washer (24) is used to press down the spring bar (23) under the action of the locking nut (25) located above it, so that the spring bar (23) presses the rail limb on the corresponding side of the rail (40) onto the rail bottom slope.

10. The elastic fastener system for railway turnout according to claim 1, characterized in that: The elastic fastener system for railway switches also includes an adjusting plate, which is used to be arranged between the elastic bar fastener (20) and the side of the rail (40) rail limb, and the adjusting plate is arranged in a millimeter-level series thickness.

Images