Embedded fastener system for switch tie in turnout zone

Abstract

The invention provides an embedded fastener system for a switch tie in a turnout zone, the embedded fastener system for the switch tie in the turnout zone comprises an embedded part, at least one insulating gauge block and a fastening assembly, the lower part of the embedded part is embedded in the switch tie, the upper part of the embedded part extends out of the switch tie, and the upper part of the embedded part is provided with a connecting part; the insulating gauge blocks are arranged on the edge area of the base plate so as to prevent the base plate from being connected with the metal body. The fastening assembly is detachably connected to the connecting part, and the insulating gauge block is fixed to the base plate. According to the embedded fastener system for the switch tie in the turnout area, short-circuit connection between the base plate and the metal body is prevented by arranging the insulating gauge block, the fastening assembly and the embedded part are connected in a matched mode to fix the base plate to the switch tie, and the embedded fastener system has the advantage of being high in connection strength.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway turnout technology, and particularly relates to a fastener system for pre-buried turnout tie in a turnout area. BACKGROUND

[0002] At present, the crossover turnout is widely used at home and abroad and is applied to the crossing line. Among them, the double crossover turnout is equivalent to two groups of single turnout laid in opposite directions. The train can smoothly pass through the crossing line and can also transfer from one line to another line. The main driving direction of the two lines is straight line, which can improve the train operation condition.

[0003] Therefore, the double crossover turnout has the advantages of short turnout length and land area saving, and can improve the train shunting capacity. SUMMARY

[0004] The present application provides a fastener system for pre-buried turnout tie in a turnout area to solve the technical problem of how to set the fastener system in the turnout tie in the turnout area in the related art.

[0005] The present application provides a fastener system for pre-buried turnout tie in a turnout area, which comprises:

[0006] A pre-buried part, the lower part of the pre-buried part is buried in the turnout tie, the upper part of the pre-buried part protrudes from the turnout tie, and the upper part of the pre-buried part is provided with a connecting part;

[0007] At least one insulating track gauge block is arranged at the edge area of the pad to prevent the pad from being connected with the metal body;

[0008] A fastening assembly is detachably connected to the connecting part and fixes the insulating track gauge block on the pad.

[0009] The fastener system for pre-buried turnout tie in a turnout area provided by the present application prevents the short circuit connection between the pad and the metal body by arranging the insulating track gauge block, and the pad is fixed on the turnout tie by the cooperation and connection of the fastening assembly and the pre-buried part, which has the advantage of high connection strength.

[0010] In an embodiment of the fastener system for pre-buried turnout tie in a turnout area of the present application, the fastener system for pre-buried turnout tie in a turnout area further comprises an insulating anti-rotation plate, which is crimped on the insulating track gauge block and is fixedly connected to the pad through the fastening assembly.

[0011] The insulating anti-rotation plate is arranged to prevent the fastening assembly and the elastic strip connected with the fastening assembly from loosening, and also ensures the insulation of the pad from other metal parts.

[0012] In an embodiment of the pre-embedded fastener system for switch area switch sleeper, the edge area of the anti-rotation insulation plate is provided with a protruding structure, and a part of the fastening assembly abuts against the protruding structure to prevent the fastening assembly from moving or rotating.

[0013] The protruding structure provided on the anti-rotation insulation plate can prevent the fastening assembly from loosening due to vibration or impact, thereby protecting the connection strength of the entire fastener system.

[0014] In an embodiment of the pre-embedded fastener system for switch area switch sleeper, the pre-embedded fastener system for switch area switch sleeper is connected between two adjacent pad plates and fastens the two adjacent pad plates to the switch sleeper.

[0015] The two adjacent pad plates are fixed by the same set of fastener system, which can save space to adapt to the small space available for the turnout.

[0016] The anti-rotation insulation plate can be fastened to the two adjacent pad plates at the same time and cover the gap between the two adjacent pad plates to prevent metal from entering the gap between the two pad plates and ensure the insulation environment of the pad plate.

[0017] The gap on both sides of the two adjacent pad plates can also be sealed by the anti-rotation insulation plate to prevent the entry of sundries.

[0018] In an embodiment of the pre-embedded fastener system for switch area switch sleeper, the pre-embedded part is provided with a bearing surface, and the edge area of the pad plate is directly or indirectly supported on the bearing surface.

[0019] The bearing surface can improve the connection strength between the pad plate and the switch sleeper and is not prone to loosening.

[0020] In an embodiment of the pre-embedded fastener system for switch area switch sleeper, the upper part of the pre-embedded part is provided with a groove, at least one side of the groove is provided with a fastening connection surface, and one end of the fastening assembly extends into the groove and is connected to the fastening connection surface.

[0021] The fastening connection surface can improve the connection strength and still has high connection strength between the pre-embedded part and the fastening assembly after multiple dismounting.

[0022] In an embodiment of the pre-embedded fastener system for switch area switch sleeper, the upper opening area of the groove is smaller than the bottom area of the groove, and the fastening connection surface is located on both sides of the upper opening.

[0023] The fastening connection surface is inclined to prevent sliding and to distribute and firmly transmit the pre-tightening force on the fastening assembly to the pre-embedded part.

[0024] In one embodiment of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area, the fastening assembly comprises a spring strip, which is connected to the anti-rotation insulating plate after elastic deformation and abuts against the protruding structure.

[0025] By arranging the spring strip, the elastic deformation of the spring strip is used to prevent loosening.

[0026] In one embodiment of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area, the middle region of the anti-rotation insulating plate is provided with a through hole, and one end of the fastening assembly is arranged in the through hole and fastened to the fastening surface.

[0027] The upper surface of the anti-rotation insulating plate is provided with the protruding structure on both sides, and the spring strip is arranged between the two protruding structures.

[0028] The connection position between the fastening assembly and the pre-buried part is arranged in the middle region of the anti-rotation insulating plate, which can uniformly distribute the fastening force at each position, improve the connection strength, and the protruding structures on both sides can prevent the fastening assembly from loosening in different directions.

[0029] In one embodiment of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area, the rail fastener system for turnout sleeper pre-buried fastener in the turnout area further comprises a rail under rubber pad, which is arranged between the pad plate and the turnout sleeper and at least partially located on the bearing surface.

[0030] The rail under rubber pad is arranged at the bottom of the pad plate to stabilize the entire fastener system, and the lower part of the pad plate is connected more tightly and firmly. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0032] Figure 1 It is a structural schematic diagram of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area of the present application;

[0033] Figure 2 It is another structural schematic diagram of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area of the present application;

[0034] Figure 3 It is a structural schematic diagram of the pre-buried part of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area of the present application;

[0035] Figure 4 It is another structural schematic diagram of the pre-buried part of the rail fastener system for turnout sleeper pre-buried fastener in the turnout area of the present application;

[0036] Figure 5 Structure diagram of the insulating anti-rotation plate for the embedded fastener system of the turnout area turnout sleeper of the present application;

[0037] Figure 6 A-A sectional view of Figure 5

[0038] The specific embodiments of the present application have been shown and described in the above by reference to the drawings. These drawings and detailed description are not intended to limit the scope of the present application in any manner. Rather, they are intended to explain the present application to one of ordinary skill in the art by reference to specific embodiments.

[0039] Explanation of reference signs

[0040] 100, embedded fastener system for turnout area turnout sleeper;

[0041] 110, embedded part; 111, connecting part; 112, bearing surface; 113, groove; 114, fastening connecting surface;

[0042] 120, insulating gauge block;

[0043] 130, fastening assembly; 131, elastic strip;

[0044] 140, insulating anti-rotation plate; 141, protruding structure; 142, through hole;

[0045] 150, under-rail rubber pad.

[0046] 200, pad plate. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below by reference to the drawings of the preferred embodiments of the present application. In the drawings, the same or similar reference signs represent the same or similar components or components with the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by one of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below by reference to the drawings.

[0048] ​In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, it can also be indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0049] In the description of the application, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the application.

[0050] The terms "first", "second", "third", "fourth" and the like in the specification and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0051] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0052] The pre-embedded fastener system for turnout sleeper in the application is suitable for compound crossover turnout, which is composed of diamond crossing, switch and connecting curve, etc. The parts are many and the space is limited, so there are many positions where pre-embedded iron seats cannot be set, such as the space between the two points of double switches, the space between the blunt angle switch and the basic rail, etc. Therefore, pre-embedded K type iron structure can be developed to use a single elastic strip to press adjacent iron pads.

[0053] According to the principle of track circuit, a certain section is divided in the turnout to set up a steel rail insulation joint, so that the two steel rails become different polarity, and the locomotive and vehicle can be short-circuited in any part of the turnout to ensure smooth signal. The track circuit of the compound crossover turnout requires different polarity of the upper and lower rails, so the iron pads of the upper and lower rails need to be insulated.

[0054] The application provides a structure diagram of a fastener system for a turnout sleeper pre-buried in a turnout area.

[0055] Figure 1 A structure diagram of a fastener system for a turnout sleeper pre-buried in a turnout area is provided in the application. Figure 2 A structure diagram of a fastener system for a turnout sleeper pre-buried in a turnout area is provided in the application. Figure 1 And Figure 2 The fastener system for a turnout sleeper pre-buried in a turnout area 100 comprises a pre-buried part 110, at least one insulating track gauge block 120, and a fastening assembly 130.

[0056] The lower part of the pre-buried part 110 is buried in a turnout sleeper, the upper part of the pre-buried part 110 extends out of the turnout sleeper, and the upper part of the pre-buried part 110 is provided with a connecting part 111.

[0057] The insulating track gauge block 120 is arranged at the edge area of a pad 200 to prevent the pad 200 from being connected with a metal body.

[0058] The fastening assembly 130 is detachably connected to the connecting part 111 and fixes the insulating track gauge block 120 on the pad 200.

[0059] The fastener system for a turnout sleeper pre-buried in a turnout area 100 provided by the application prevents short-circuit connection between the pad 200 and the metal body by arranging the insulating track gauge block 120, and the pad 200 is fixed on the turnout sleeper by the cooperation of the fastening assembly 130 and the pre-buried part 110, so that the fastener system has the advantage of high connection strength.

[0060] In an embodiment of the application, the fastener system for a turnout sleeper pre-buried in a turnout area 100 further comprises an insulating anti-rotation plate 140, which is crimped on the insulating track gauge block 120 and fixedly connected to the pad 200 through the fastening assembly 130.

[0061] The insulating anti-rotation plate 140 prevents the fastening assembly 130 and the elastic strip 131 connected to the fastening assembly 130 from loosening, and also ensures the insulation of the pad 200 from other metal parts.

[0062] In one embodiment of the present application, the edge region of the insulation anti-rotation plate 140 is provided with a protruding structure 141, and a part of the fastening assembly 130 abuts against the protruding structure 141 to prevent the fastening assembly 130 from moving or rotating.

[0063] The protruding structure 141 provided on the insulation anti-rotation plate 140 can prevent the fastening assembly 130 from loosening due to vibration or impact, thereby protecting the connection strength of the entire fastener system.

[0064] In one embodiment of the present application, the fastener system 100 for pre-buried turnout sleeper in a turnout area is connected between two adjacent pad plates 200, and the two adjacent pad plates 200 are clamped on the turnout sleeper.

[0065] The two adjacent pad plates 200 are fixed by the same set of fastener system, which can save space to adapt to the small space available in the switch turnout.

[0066] The insulation anti-rotation plate 140 can be clamped on the two adjacent pad plates 200 at the same time, and cover the gap between the two adjacent pad plates 200 to prevent metal from entering the gap between the two pad plates 200, and ensure the insulation environment of the pad plate 200.

[0067] The gap on both sides of the two adjacent pad plates 200 can also be blocked by the insulation anti-rotation plate 140 to prevent the entry of sundries.

[0068] Figure 3 The structure diagram of the pre-buried part of the fastener system for pre-buried turnout sleeper in a turnout area of the present application; Figure 4 The structure diagram of the pre-buried part of the fastener system for pre-buried turnout sleeper in a turnout area of the present application from another perspective, as shown in Figure 3 And Figure 4 In one embodiment of the present application, the pre-buried part 110 is provided with a bearing surface 112, and the edge region of the pad plate 200 is directly or indirectly supported on the bearing surface 112.

[0069] The bearing surface 112 can improve the connection strength between the pad plate 200 and the turnout sleeper, and is not prone to loosening.

[0070] In one embodiment of the present application, the upper part of the pre-buried part 110 is provided with a groove 113, at least one side of the groove 113 is provided with a fastening connection surface 114, and one end of the fastening assembly 130 extends into the groove 113 and is connected to the fastening connection surface 114.

[0071] The fastening connection surface 114 can improve the connection strength, and the pre-buried part 110 and the fastening assembly 130 still have high connection strength after multiple disassembly.

[0072] In one embodiment of the present application, the upper opening area of the groove 113 is smaller than the bottom area of the groove 113, and the fastening connection surface 114 is located on both sides of the upper opening.

[0073] The fastening connection surface 114 is arranged obliquely to prevent sliding and to distribute and firmly transmit the pre-tightening force on the fastening assembly 130 to the embedded part 110.

[0074] In one embodiment of the present application, the fastening assembly 130 comprises a resilient strip 131 which is connected to the insulation anti-rotation plate 140 after elastic deformation and abuts against the protruding structure 141.

[0075] By arranging the resilient strip 131, the elastic deformation of the resilient strip 131 is used to prevent loosening.

[0076] Figure 5 FIG. 1 is a structural schematic diagram of an insulation anti-rotation plate for a turnout area sleeper embedded fastener system according to the present application, Figure 6 FIG. 2 is a sectional view of A-A of FIG. 1, and Figure 5 FIG. 3 is a sectional view of B-B of FIG. 1, as shown in FIGS. 1 to 3, in one embodiment of the present application, a through hole 142 is arranged in the middle region of the insulation anti-rotation plate 140, and one end of the fastening assembly 130 is arranged in the through hole 142 and fastened to the fastening connection surface 114. Figure 5 FIG. 4 is a sectional view of C-C of FIG. 1, and Figure 6 FIG. 5 is a sectional view of D-D of FIG. 1, as shown in FIGS. 1 to 5, in one embodiment of the present application, the upper surface of the insulation anti-rotation plate 140 is provided with the protruding structure 141 on both sides, and the resilient strip 131 is arranged between the two protruding structures 141.

[0077] In one embodiment of the present application, the upper surface of the insulation anti-rotation plate 140 is provided with the protruding structure 141 on both sides, and the resilient strip 131 is arranged between the two protruding structures 141.

[0078] Arranging the connection position between the fastening assembly 130 and the embedded part 110 in the middle region of the insulation anti-rotation plate 140 can evenly distribute the fastening force at each position, improve the connection strength, and the protruding structures 141 on both sides can prevent the fastening assembly 130 from loosening in different directions.

[0079] The design requirements of the anti-rotation insulation plate include: insulation, preventing electrical connection between the two pad plates and between the resilient strip 131 and the pad plate 200; anti-rotation, fixing the position of the resilient strip 131 to prevent it from rotating during installation and use;

[0080] The anti-rotation insulation plate is made of insulating material and has a width exceeding the boundary of the iron pad plate to avoid electrical connection between the two pad plates due to misplacement of metal parts, and cooperates with the insulating gauge block 120 to insulate the adjacent iron pad plate 200. The anti-rotation groove on the upper surface of the anti-rotation insulation plate limits the position of the resilient strip 131.

[0081] In an embodiment of the present application, the embedded fastener system for turnout sleeper further comprises a rail pad 150, which is arranged between the sleeper and the pad 200 and at least partially located on the bearing surface 112.

[0082] The rail pad 150 plays a role in stabilizing the entire fastener system at the bottom of the pad 200, and the lower part of the pad 200 is connected more tightly and firmly.

[0083] It should be further noted that the pad 200, especially the iron pad 200, is an important part of the turnout rail foundation, which mainly functions to fix the rail, maintain the gauge, and transfer the load, etc. The pad 200 is connected with the sleeper through the embedded part 110 on the sleeper as a connecting point, and the load generated during the wheel-rail contact is transmitted.

[0084] The embedded fastener system can be divided into an embedded iron seat fastener system and an embedded K-type iron fastener system.

[0085] The embedded iron seat fastener system includes an embedded iron seat, an insulating gauge block 120, a spring strip 131, a T-shaped bolt, a nut, and a washer, and a single spring strip 131 is used to press one side of a pad 200.

[0086] The embedded K-type iron fastener system includes an embedded K-type iron, an insulating gauge block 120, a spring strip 131, a T-shaped bolt, a nut, a washer, and a spring strip anti-rotation plate. A single spring strip 131 is used to press one side of two pads 200; the anti-rotation plate can be made of insulating material or metal material.

[0087] The embedded fastener system design can be divided into the following conditions according to different positions of the turnout:

[0088] 1) The turnout space is not limited, that is, there is sufficient space between two adjacent pads 200 of the same sleeper to set the sleeper embedded iron seat, and the polarity of the two rail pieces is required to be the same or different when the turnout is not set with track circuit or the turnout is set with track circuit.

[0089] 2) The turnout space is limited, that is, there is not enough space between two adjacent pads 200 of the same sleeper to set two groups of sleeper embedded iron seats, and the polarity of the two rail pieces is different when the turnout is set with track circuit.

[0090] 3) The turnout space is limited, that is, there is not enough space between two adjacent pads 200 of the same sleeper to set two groups of sleeper embedded iron seats, and the polarity of the two rail pieces is the same or the turnout is not set with track circuit.

[0091] In the non-limited space of the turnout, the polarity of the two rail pieces is required to be the same or different when the turnout is not set with track circuit or the turnout is set with track circuit, and the sleeper embedded fastener adopts the structure of embedded iron seat, insulating gauge block 120, spring strip 131, T-shaped bolt, nut, and washer.

[0092] The embedded iron seat is the connecting point of the base plate 200 and the frog sleeper. The embedded iron seat on both sides of the base plate 200 is buckled and pressed by two elastic strips 131 to maintain the stability and reliability of the base plate 200. An insulating track block 120 is arranged between the embedded iron seat and the base plate 200 to maintain insulation, and the position of the base plate 200 is adjusted by replacing different specifications of the track block.

[0093] In the limited space area of the turnout, the track circuit is arranged in the turnout, and the polarities of the two steel rail pieces are different. Therefore, the split base plate 200 is used, and insulation is arranged between the base plates 200 to meet the use requirements. The embedded K-shaped iron, the insulating track block 120, the elastic strip 131, the T-shaped bolt, the nut and the washer, and the anti-rotation plate 140 are used for the embedded fastener of the frog sleeper, which has a smaller size than the embedded iron seat.

[0094] In this structure, the embedded K-shaped iron is the connecting point of the base plate 200 and the frog sleeper. One embedded K-shaped iron is arranged, and one elastic strip 131 is used to buckle and press one side of the two iron base plates 200. An insulating track block 120 is arranged between the embedded K-shaped iron and the base plate 200 to maintain the insulation between the frog sleeper and the base plate 200, and the position of the base plate 200 is adjusted by replacing different specifications of the track block. The anti-rotation plate of the elastic strip 131 is made of insulating material, which not only plays the anti-rotation function of the elastic strip 131, but also avoids the misplacement of metal parts between the two base plates, which leads to the electric connection.

[0095] In the limited space area of the turnout, the track circuit is arranged in the turnout, and the polarities of the two steel rail pieces are different. Therefore, the split base plate 200 is used, and insulation is arranged between the base plates 200 to meet the use requirements. The embedded K-shaped iron, the insulating track block 120, the elastic strip 131, the T-shaped bolt, the nut and the washer, and the anti-rotation plate 140 are used for the embedded fastener of the frog sleeper, which has a smaller size than the embedded iron seat.

[0096] In this structure, the embedded K-shaped iron is the connecting point of the base plate 200 and the frog sleeper. One embedded K-shaped iron is arranged, and one elastic strip 131 is used to buckle and press one side of the two iron base plates 200. An insulating track block 120 is arranged between the embedded K-shaped iron and the base plate 200 to maintain the insulation between the frog sleeper and the base plate 200, and the position of the base plate 200 is adjusted by replacing different specifications of the track block. The anti-rotation plate of the elastic strip 131 is made of insulating material, which not only plays the anti-rotation function of the elastic strip 131, but also avoids the misplacement of metal parts between the two base plates, which leads to the electric connection.

[0097] In this structure, the embedded K-shaped iron is the connecting point of the base plate 200 and the frog sleeper. One embedded K-shaped iron is arranged, and one elastic strip 131 is used to buckle and press one side of the two iron base plates 200. An insulating track block 120 is arranged between the embedded K-shaped iron and the base plate 200 to maintain the insulation between the frog sleeper and the base plate 200, and the position of the base plate 200 is adjusted by replacing different specifications of the track block. The anti-rotation plate of the elastic strip 131 is made of insulating material, which not only plays the anti-rotation function of the elastic strip 131, but also avoids the misplacement of metal parts between the two base plates, which leads to the electric connection.

[0098] The above three structures can solve the firm connection between the base plate 200 and the frog sleeper in the non-limited area or the limited area in the double crossover.

[0099] Especially for the narrow space in the double crossover turnout, the base plate 200 and the frog sleeper are connected.

[0100] The stability and reliability of the pad 200 are maintained by pre-embedded iron seat or pre-embedded K-shaped iron with elastic strip 131 buckling the pad 200. The design requirements of the pre-embedded K-shaped iron include: the strength of the pre-embedded K-shaped iron and its anti-pulling force embedded in the switch sleeper; the pre-embedded K-shaped iron meets the installation size of the T-shaped bolt.

[0101] The position of the pad 200 can be adjusted by replacing the gauge block, and thus the gauge of the switch rail can be adjusted, facilitating the installation of the switch and reducing the maintenance workload.

[0102] The insulating gauge block 120 is arranged between the pad 200 and the pre-embedded part 110, and the elastic strip 131 uses the insulating anti-rotation plate 140 to realize the insulation between the pad 200 and the switch sleeper and avoid the electric connection between the two pads 200 due to the misplacement of metal parts.

[0103] According to the above method, the pad 200 can be designed for the space-limited area of the switch, that is, there is sufficient space between the two adjacent pads 200 to arrange two groups of switch sleeper pre-embedded iron seats, the track circuit is arranged in the switch, and the polarities of the two rail pieces are different, so the separate pad 200 is required to be arranged and the insulation is arranged between the pads 200 to meet the use requirements.

[0104] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0105] It should be understood that the application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application should only be limited by the appended claims.

Claims

1. A system for pre-embedded fasteners for turnout sleepers in turnout areas, characterized in that, The pre-embedded fastener system for turnout sleepers in turnout areas includes: An embedded part, wherein the lower part of the embedded part is embedded in the turnout sleeper, the upper part of the embedded part extends out of the turnout sleeper, and the upper part of the embedded part is provided with a connecting part; At least one insulating gauge block is disposed in the edge region of the pad to prevent the pad from being connected to the metal body; A fastening assembly is detachably connected to the connection portion and secures the insulating gauge block to the pad.

2. The pre-embedded fastener system for turnout sleepers in turnout areas according to claim 1, characterized in that, The system for pre-embedded fasteners for turnout sleepers in turnout areas also includes an insulating anti-rotation plate, which is pressed onto the insulating gauge block and fixedly connected to the pad by the fastening assembly.

3. The pre-embedded fastener system for turnout sleepers in turnout areas according to claim 2, characterized in that, The edge area of ​​the insulating anti-rotation plate is provided with an upward protrusion structure, and a portion of the fastening component abuts against the protrusion structure to prevent the fastening component from moving or rotating.

4. The pre-embedded fastener system for turnout sleepers in turnout areas according to claim 2, characterized in that, The pre-embedded fastener system for turnout sleepers in the turnout area is connected between two adjacent pads and presses the two adjacent pads onto the turnout sleepers.

5. The pre-embedded fastener system for turnout sleepers in turnout areas according to claim 2, characterized in that, The embedded part is provided with a bearing surface, and the edge area of ​​the pad is directly or indirectly supported on the bearing surface.

6. The turnout sleeper pre-embedded fastener system according to any one of claims 1-5, characterized in that, The upper part of the embedded part is provided with a groove, and at least one side of the groove is provided with a fastening connection surface. One end of the fastening component extends into the groove and is connected to the fastening connection surface.

7. The turnout sleeper pre-embedded fastener system according to claim 6, characterized in that, The upper opening area of ​​the groove is smaller than the bottom area of ​​the groove, and the fastening connection surface is located on both sides of the upper opening.

8. The turnout sleeper pre-embedded fastener system according to any one of claims 2-5, characterized in that, The fastening assembly includes a spring bar, which, after elastic deformation, connects to the insulating anti-rotation plate and abuts against the protruding structure.

9. The turnout sleeper pre-embedded fastener system according to claim 8, characterized in that, The insulating anti-rotation plate has a through hole in the middle area, and one end of the fastening component passes through the through hole and is fastened to the fastening connection surface. The insulating anti-rotation plate has raised structures on both sides of its upper surface, and the elastic bar is located between the two raised structures.

10. The turnout sleeper pre-embedded fastener system according to claim 9, characterized in that, The pre-embedded fastener system for turnout sleepers in turnout areas also includes a rail pad, which is disposed between the pad plate and the turnout sleeper, and at least a portion of the pad is located on the bearing surface.

Images