Rail fasteners and railway rail fastener systems

Abstract

This invention relates to the field of transportation equipment technology, and more particularly to a rail fastener and a railway rail fastener system. The rail fastener includes a first helical spike, a second helical spike, an elastic clip, and a gauge baffle. The elastic clip forms a first installation channel and a second installation channel. The gauge baffle has a first installation hole and a second installation hole. The first helical spike passes through the first installation channel and the first installation hole in sequence and connects to the sleeper. The second helical spike passes through the second installation channel and the second installation hole in sequence and connects to the sleeper. The elastic clip includes two front ends and two rear ends. The two front ends are used to press against the side edge of the rail, and the two rear ends press against the gauge baffle. When dealing with the significantly increased impact effect of trains with increased axle load on the track structure and fasteners, this system can effectively release the impact force, preventing the elastic clip from breaking or the fastener from being damaged, or preventing rail creep due to insufficient longitudinal resistance, thus ensuring the safe operation of the train.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology, and in particular to a rail fastener and a railway rail fastener system. Background Technology

[0002] As a crucial component of railway tracks, the fastening system secures the rails to the sleepers, maintaining track gauge and preventing longitudinal and lateral movement of the rails relative to the sleepers. Fasteners should be able to maintain a reliable connection between the rails and sleepers reliably and effectively over a long period, and fully utilize their cushioning and shock-absorbing properties under dynamic loads to delay the accumulation of residual track deformation. Therefore, they are required to possess sufficient strength, durability, and a certain degree of elasticity. Furthermore, fastening systems for heavy-haul railways should also have greater fastening force, longitudinal resistance, and stability.

[0003] Currently, fastening systems typically use a single anchor bolt and nut or a single spiral spike and embedded threaded tube to secure the rail with elastic clips, buffering track stress and limiting longitudinal movement. For heavy-haul railways, the increased axle load, especially with the emergence of 30t and 40t axle load trains, significantly increases the impact on the track structure, particularly the fastening system. Due to the inability to effectively release this impact, some sections may experience elastic clip breakage, damage to fastening system components, or rail creep due to insufficient longitudinal resistance, posing significant safety hazards to train operation. Summary of the Invention

[0004] This invention provides a rail fastener and a railway rail fastener system to address one of the shortcomings of the prior art. When dealing with the significantly increased impact effect of trains with increased axle load on the track structure and fasteners, it can effectively release the impact force, avoid breakage of the spring clips or damage to the fasteners, or rail creep due to insufficient longitudinal resistance, thus ensuring the safe operation of the train.

[0005] This invention provides a rail fastener, comprising a first helical spike, a second helical spike, an elastic clip, and a gauge baffle. The elastic clip forms a first installation channel and a second installation channel. The gauge baffle has a first installation hole and a second installation hole. The first helical spike passes through the first installation channel and the first installation hole in sequence and is connected to a sleeper. The second helical spike passes through the second installation channel and the second installation hole in sequence and is connected to the sleeper. The elastic clip includes two front ends and two rear ends. The two front ends are used to press against the side edge of the rail, and the two rear ends are pressed against the gauge baffle.

[0006] According to a rail fastener provided by the present invention, the elastic bar further includes a first elastic arm, a second elastic arm, and a third elastic arm. The second elastic arm is located between the first elastic arm and the third elastic arm. The first elastic arm is connected to the second elastic arm through one of its rear ends and defines the first mounting channel. The second elastic arm is connected to the third elastic arm through another of its rear ends and defines the second mounting channel. The first elastic arm is connected to one of its front ends, and the third elastic arm is connected to another of its front ends.

[0007] According to a rail fastener provided by the present invention, the elastic bar further includes a first intermediate end and a second intermediate end disposed on the same side as the front end. The first intermediate end and the second intermediate end are symmetrically disposed on both sides of the second elastic arm and are both connected to the second elastic arm. The first intermediate end extends toward one of the front ends, and the second intermediate end extends toward the other front end.

[0008] According to the present invention, a rail fastener further includes a gauge block, which is clamped between the rail and the gauge baffle. The upper surface of the gauge block is provided with a groove, and the first intermediate end and the second intermediate end are both embedded in the groove.

[0009] According to a rail fastener provided by the present invention, the gauge block has two protrusions on the side that abuts against the gauge baffle, and the vertical distance between the two protrusions is the length of the gauge baffle along the extension direction of the rail.

[0010] According to the present invention, a rail fastener further includes a rail pad, wherein the rail pad is provided with a first protrusion, the first protrusion being used to be embedded in the limiting groove of the sleeper.

[0011] According to a rail fastener provided by the present invention, the rail pad is further provided with two second protrusions, the two second protrusions are respectively disposed on both sides of the first protrusion, and the vertical distance between the two second protrusions is the length of the sleeper along the extension direction of the rail.

[0012] According to a rail fastener provided by the present invention, the gauge baffle includes a base plate and a first side plate, a second side plate, and two reinforcing ribs disposed on the upper surface of the base plate. The first side plate and the second side plate are disposed opposite to each other. The first side plate abuts against the gauge block, and the second side plate abuts against the sleeper. The two reinforcing ribs are disposed between the first side plate and the second side plate. The first mounting hole and the second mounting hole are both disposed on the base plate and located between the two reinforcing ribs. The ends of the two reinforcing ribs near the second side plate are respectively constructed with recesses, and the two rear ends are respectively pressed into the two recesses.

[0013] According to the present invention, a rail fastener further includes a cover plate, the cover plate having a first through hole and a second through hole, the first spiral rail spike passing through the first through hole into the first mounting channel, and the second spiral rail spike passing through the second through hole into the second mounting channel.

[0014] The present invention also provides a railway rail fastening system, including a sleeper and a rail fastener as described above. The sleeper is provided with an installation groove, and the interior of the sleeper is provided with a first pre-embedded threaded tube and a second pre-embedded threaded tube. The rail fastener is disposed in the installation groove, and the bottom of the installation groove is provided with a limiting groove. The first spiral rail spike is screwed into the first pre-embedded threaded tube, and the second spiral rail spike is screwed into the second pre-embedded threaded tube.

[0015] The rail fastener provided by this invention is installed on the sleeper and located in the width direction of the rail, thereby clamping and fixing the rail to the sleeper. The elastic clip, through its own bending, forms two relatively independent installation channels: a first installation channel and a second installation channel. Correspondingly, the gauge baffle has a first installation hole and a second installation hole. A first bolt (rail spike) passes through the first installation channel and the first installation hole sequentially from top to bottom, and then connects to the sleeper. A second bolt (rail spike) passes through the second installation channel and the second installation hole sequentially from top to bottom, and then connects to the sleeper.

[0016] In the transverse direction, the end of the elastic clip closest to the rail is the front end, and the end furthest from the rail is the rear end. After the first and second bolt spikes are tightened, they can be directly pressed onto the elastic clip. The front end presses against the upper surface of the side edge along the width of the rail, and the rear end presses against the gauge block, thus achieving the clamping and fixing of the elastic clip to the rail on the sleeper. The elastic clip can produce elastic deformation, buffering track stress and fixing the longitudinal position of the rail on the sleeper. The gauge block abuts against the rail and sleeper on both sides in the transverse direction, thereby fixing the transverse position of the rail on the sleeper.

[0017] The double-helix rail spike, consisting of a first bolt and a second helical rail spike, first secures the elastic clip to the gauge plate, then fixes the elastic clip and gauge plate together to the sleeper. This increases the longitudinal resistance of the track structure, ensuring its stability. Furthermore, because the elastic clip has a longer effective length than traditional clips, it extends along the rail length, further increasing the longitudinal resistance of the fasteners on the rail. Compared to existing technologies that use a single anchor bolt and nut or a single helical rail spike and pre-embedded threaded tube to fasten the elastic clip to the rail, this invention effectively releases the impact force when the axle load of a train significantly increases the impact on the track structure and fasteners. This prevents the elastic clip from breaking or the fasteners from being damaged, or rail creep due to insufficient longitudinal resistance, thus ensuring train operation safety.

[0018] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted by the present invention, and the advantages brought about by the technical features of these technical solutions as described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or will be learned through the practice of the present invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the structural schematic diagrams of the railway rail fastening system provided in the embodiments of the present invention;

[0021] Figure 2 This is the second structural schematic diagram of the railway rail fastening system provided in this embodiment of the invention;

[0022] Figure 3 This is a schematic diagram of the elastic bar of the rail fastener provided in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the track gauge block of the rail fastener provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the rail pad of the rail fastener provided in the embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the track gauge baffle of the rail fastener provided in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the cover plate of the rail fastener provided in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the sleeper structure of the railway rail fastening system provided in an embodiment of the present invention.

[0028] Figure label:

[0029] 100, First spiral rail spike; 200, Second spiral rail spike;

[0030] 300, spring bar; 310, first mounting channel; 320, second mounting channel; 331, first front end; 332, second front end; 341, first rear end; 342, second rear end; 350, first spring arm; 360, second spring arm; 370, third spring arm; 381, first intermediate end; 382, ​​second intermediate end;

[0031] 400, Track gauge baffle; 410, First mounting hole; 420, Second mounting hole; 430, Base plate; 440, First side plate; 441, Opening; 450, Second side plate; 461, First reinforcing rib; 462, Second reinforcing rib; 463, First recess; 464, Second recess;

[0032] 500, gauge block; 510, groove; 521, first protrusion; 522, second protrusion; 530, bayonet;

[0033] 600. Rail pad; 610. First protrusion; 620. Second protrusion;

[0034] 700, Cover plate; 710, First through hole; 720, Second through hole;

[0035] 800, sleeper; 810, mounting groove; 820, first embedded threaded tube; 830, second embedded threaded tube; 840, limiting groove; 850, sleeper shoulder;

[0036] 900. Steel rails. Detailed Implementation

[0037] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0038] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0040] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] Furthermore, in the description of the embodiments of the present invention, unless otherwise stated, "multiple", "multiple roots", and "multiple groups" mean two or more, and "several", "several roots", and "several groups" mean one or more.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The direction in which the rail extends is its length direction, defined as longitudinal, and the horizontal direction perpendicular to the rail's extension direction is the rail's width direction, defined as transverse.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the rail fastener provided in this embodiment of the invention includes a first spiral spike 100, a second spiral spike 200, an elastic bar 300, and a gauge baffle 400. The elastic bar 300 forms a first installation channel 310 and a second installation channel 320. The gauge baffle 400 has a first installation hole 410 and a second installation hole 420. The first spiral spike 100 passes through the first installation channel 310 and the first installation hole 410 in sequence and is connected to the sleeper 800. The second spiral spike 200 passes through the second installation channel 320 and the second installation hole 420 in sequence and is connected to the sleeper 800. The elastic bar 300 includes two front ends and two rear ends. The two front ends are used to press against the side edge of the rail 900, and the two rear ends are pressed against the gauge baffle 400.

[0045] The rail fastener of this embodiment is disposed on the sleeper 800 and located in the width direction of the rail 900, thereby clamping and fixing the rail 900 to the sleeper 800. The elastic bar 300 forms two relatively independent installation channels by bending itself, namely the first installation channel 310 and the second installation channel 320. The gauge baffle 400 is provided with corresponding first installation holes 410 and second installation holes 420. The first bolt spike passes through the first installation channel 310 and the first installation hole 410 from top to bottom, and then connects to the sleeper 800. The second bolt spike passes through the second installation channel 320 and the second installation hole 420 from top to bottom, and then connects to the sleeper 800.

[0046] In the transverse direction, the end of the elastic clip 300 closest to the rail 900 is designated as the front end, and the end furthest from the rail 900 is designated as the rear end. After the first and second bolt spikes are tightened, they can be directly pressed onto the elastic clip 300. The front end presses against the upper surface of the side edge located on the width of the rail 900, and the rear end presses against the gauge block 400, thereby achieving the clamping and fixing of the elastic clip 300 to the rail 900 on the sleeper 800. The elastic clip 300 can generate elastic deformation to buffer track stress and achieve longitudinal position fixing of the rail 900 on the sleeper 800. The gauge block abuts against the rail 900 and the sleeper 800 on both sides in the transverse direction, thereby achieving transverse position fixing of the rail 900 on the sleeper 800.

[0047] The double-helix rail spike, consisting of a first bolt spike and a second helical spike 200, first fixes the elastic clip 300 to the gauge baffle 400, and then fixes the elastic clip 300 and the gauge baffle 400 together to the sleeper 800. This increases the longitudinal resistance of the track structure and ensures its stability. Furthermore, because the elastic clip 300 has a longer effective length than traditional elastic clips 300, it is longer along the length of the rail 900, further increasing the longitudinal resistance of the fasteners on the rail 900. Compared to existing technologies that use a single anchor bolt and nut or a single helical spike and pre-embedded bolt to fasten the elastic clip 300 to the rail 900, this invention effectively releases the impact force when the axle load of the train significantly increases the impact on the track structure and fasteners. This prevents the elastic clip 300 from breaking or the fasteners from being damaged, or prevents rail 900 creeping due to insufficient longitudinal resistance, thus ensuring the safe operation of the train.

[0048] According to one embodiment of the present invention, the spring bar 300 further includes a first spring arm 350, a second spring arm 360 and a third spring arm 370. The second spring arm 360 is located between the first spring arm 350 and the third spring arm 370. The first spring arm 350 is connected to the second spring arm 360 through a rear end and defines a first mounting channel 310. The second spring arm 360 is connected to the third spring arm 370 through another rear end and defines a second mounting channel 320. The first spring arm 350 is connected to a front end and the third spring arm 370 is connected to another front end.

[0049] In this embodiment, the elastic bar 300 has an "m"-like shape, with both the front and rear ends extending longitudinally, increasing the longitudinal clamping length range of the elastic bar 300 on the rail 900. The first elastic arm 350 and the third elastic arm 370 connect the front and rear ends. The two front ends are the first front end 331 and the second front end 332, and the two rear ends are the first rear end 341 and the second rear end 342. The left end of the first elastic arm 350 is connected to the first front end 331, and the right end of the first elastic arm 350 is connected to the second front end 332. The left end of the third elastic arm 370 is connected to the second front end 332, and the right end of the third elastic arm 370 is connected to the second rear end 342. The second elastic arm 360 separates the first mounting channel 310 and the second mounting channel 320, and the first rear end 341 and the second rear end 342 converge and connect to the right end of the second elastic arm 360.

[0050] After passing through the first mounting channel 310 and the second mounting channel 320, the first spiral spike 100 and the second spiral spike 200 apply downward pressure to the first elastic arm 350, the second elastic arm 360 and the third elastic arm 370 to press the first elastic arm 350, the second elastic arm 360 and the third elastic arm 370 together, thereby transmitting the force so that the front end acts on the rail 900 and the rear end acts on the gauge block.

[0051] According to an embodiment of the present invention, the spring bar 300 further includes a first intermediate end 381 and a second intermediate end 382 disposed on the same side as the front end. The first intermediate end 381 and the second intermediate end 382 are symmetrically disposed on both sides of the second spring arm 360 and are both connected to the second spring arm 360. The first intermediate end 381 extends toward one front end and the second intermediate end 382 extends toward the other front end.

[0052] In this embodiment, both the first intermediate end 381 and the second intermediate end 382 are located at the left end of the second elastic arm 360. That is, the end of the second elastic arm 360 near the rail 900 forks to form the first intermediate end 381 and the second intermediate end 382. The first front end 331 and the second front end 332 extend in opposite directions. The first intermediate end 381 and the second intermediate end 382 are located between the first front end 331 and the second front end 332, and their extension directions correspond to those of the first front end 331 and the second front end 332. The arrangement of the two front ends, the first intermediate end 381, and the second intermediate end 382 can further increase the longitudinal clamping range of the elastic bar 300 on the rail 900, thereby increasing the pressure of the elastic bar 300 on the rail 900.

[0053] In this embodiment, the first front end portion 331, the first elastic arm 350, and the first rear end portion 341 form a single integral bent elastic bar 300 portion, and the second front end portion 332, the third elastic arm 370, and the second rear end portion 342 also form a single integral bent elastic bar 300 portion. These two portions are symmetrically arranged relative to the second elastic arm 360. The first middle end portion 381 and the second middle end portion 382 are also symmetrically arranged on both sides of the second elastic arm 360 in a forked manner. This ensures that all three elastic arms can apply force to the rail 900.

[0054] like Figure 4 As shown, according to an embodiment of the present invention, the rail fastener further includes a gauge block 500, which is sandwiched between the rail 900 and the gauge baffle 400. The upper surface of the gauge block 500 is provided with a groove 510, and both the first intermediate end 381 and the second intermediate end 382 are embedded in the groove 510. In this embodiment, one side of the gauge block 500 abuts against the side edge of the rail 900, and the other side abuts against the gauge baffle 400. That is, the gauge block 500 and the gauge baffle 400 cooperate to restrict the lateral position of the rail 900 on the sleeper 800. The upper surface of the gauge block 500 is provided with a groove 510, and the first intermediate end 381 and the second intermediate end 382 are integrally embedded in the groove 510. That is, the groove 510 restricts the longitudinal position of the first intermediate end 381 and the second intermediate end 382.

[0055] In this embodiment, the first front end 331 and the second front end 332 also fall on the gauge block 500. The groove 510 is located in the middle of the upper surface of the gauge block 500. The first front end 331 and the second front end 332 fall on the front and rear sides of the groove 510. That is, the elastic bar 300 is pressed on the upper surface of the gauge block 500, and then the gauge block 500 applies pressure to the rail 900. The groove 510 limits the position of the middle end, avoiding longitudinal and lateral displacement of the elastic bar 300 on the surface of the gauge block 500, and better fixing the elastic bar 300 on the gauge block 500. This ensures that the longitudinal resistance to the rail 900 is increased while the positioning of the elastic bar 300 is achieved, improving the positioning accuracy during installation and further increasing its longitudinal resistance and stability.

[0056] In this embodiment, a slot 530 is provided on the lower surface of the gauge block 500 on the side near the rail 900. The side edge of the rail 900 is inserted into the slot 530, so that the upper part of the gauge block 500 of the slot 530 can rest on the upper surface of the side edge of the rail 900 to fasten the rail 900.

[0057] According to one embodiment of the present invention, the gauge block 500 has two protrusions on the side that abuts against the gauge baffle 400, and the vertical distance between the two protrusions is the length of the gauge baffle 400 extending along the rail 900. In this embodiment, two protrusions are sequentially arranged longitudinally on the gauge block 500. During the abutment process with the gauge baffle 400, the gauge baffle 400 is embedded between the two protrusions, and the distance between the two protrusions matches the longitudinal length of the gauge baffle 400, thereby achieving longitudinal positioning of the gauge baffle 400 on the sleeper 800 through the two protrusions.

[0058] In this embodiment, the two protrusions are a first protrusion 521 and a second protrusion 522. The first protrusion 521 and the second protrusion 522 clamp the gauge baffle 400 in the longitudinal direction. The side of the gauge block 500 between the first protrusion 521 and the second protrusion 522 is in close contact with the gauge baffle 400, thereby achieving the lateral and longitudinal limitation of the gauge baffle 400 on the sleeper 800.

[0059] like Figure 5 As shown, according to an embodiment of the present invention, the rail fastener further includes a rail pad 600. The rail pad 600 is provided with a first protrusion 610, which is used to embed into a limiting groove 840 of the sleeper 800. In this embodiment, the rail pad 600 is located between the upper surface of the sleeper 800 and the lower surface of the rail 900. The lower surface of the rail pad 600 is provided with the first protrusion 610, and the upper surface of the sleeper 800 is provided with a limiting groove 840. The limiting groove 840 corresponds to the first protrusion 610. When the rail pad 600 is placed on the sleeper 800, the first protrusion 610 is embedded in the limiting groove 840.

[0060] In this embodiment, the first protrusion 610 is located at the middle position of the lower surface of the rail pad 600, and the limiting groove 840 is also located at the middle position of the sleeper 800. The limiting groove 840 is a certain distance from the front, rear, left and right edges of the sleeper 800. After the first protrusion 610 is embedded in the limiting groove 840, the horizontal and vertical positions of the rail pad 600 on the sleeper 800 can be fixed.

[0061] According to one embodiment of the present invention, the rail pad 600 is further provided with two second protrusions 620, which are respectively disposed on both sides of the first protrusion 610. The vertical distance between the two second protrusions 620 is the length of the sleeper 800 extending along the rail 900. In this embodiment, the lower surface of the rail pad 600 is also provided with two second protrusions 620, which are extensions of the two ends of the rail pad 600 in the longitudinal direction. The distance between the two second protrusions 620 matches the longitudinal length of the sleeper 800. When the rail pad 600 is placed on the sleeper 800, the first protrusion 610 is embedded in the limiting groove 840, and the two second protrusions 620 clamp the sleeper 800 to completely position the fastener on the sleeper 800. Due to the interaction between the fastener and the sleeper 800, the overall longitudinal resistance of the fastener is further increased, while its installation accuracy and stability are improved.

[0062] According to an embodiment of the present invention, the gauge baffle 400 includes a base plate 430 and a first side plate 440, a second side plate 450 and two reinforcing ribs disposed on the upper surface of the base plate 430. The first side plate 440 and the second side plate 450 are disposed opposite to each other. The first side plate 440 abuts against the gauge block 500, and the second side plate 450 abuts against the sleeper 800. The two reinforcing ribs are disposed between the first side plate 440 and the second side plate 450. The first mounting hole 410 and the second mounting hole 420 are both disposed on the base plate 430 and located between the two reinforcing ribs. The ends of the two reinforcing ribs near the second side plate 450 are respectively constructed with recesses, and the two rear ends are respectively pressed into the two recesses.

[0063] In this embodiment, the first side plate 440 of the gauge baffle 400 is located on the left side of the base plate 430, and the second side plate 450 is located on the right side of the base plate 430. Two reinforcing ribs are a first reinforcing rib 461 and a second reinforcing rib 462, which are sequentially arranged longitudinally on the base plate 430. The upper surface of the reinforcing rib is an inclined surface, gradually sloping downwards from the first side plate 440 to the second side plate 450. A first recess 463 and a second recess 464 are formed near the end of the second side plate 450. The recesses engage with the side surface of the second side plate 450. The first rear end 341 of the elastic bar 300 is embedded in the first recess 463, and the second rear end 342 is embedded in the second recess 464. Thus, the recesses provide a limiting fixation for the rear end of the elastic bar 300, improving the installation stability of the elastic bar 300.

[0064] In this embodiment, the first side plate 440 has an opening 441 from top to bottom, and the second elastic arm 360 can extend from the opening 441 to reach the gauge block 500, thereby pressing the first intermediate end 381 and the second intermediate end 382 onto the gauge block 500, realizing the installation and fixation between the gauge block 500 and the gauge baffle 400.

[0065] like Figure 7 As shown, according to an embodiment of the present invention, the rail fastener further includes a cover plate 700, the cover plate 700 having a first through hole 710 and a second through hole 720, a first spiral rail spike 100 passing through the first through hole 710 and entering the first installation channel 310, and a second spiral rail spike 200 passing through the second through hole 720 and entering the second installation channel 320.

[0066] In this embodiment, the cover plate 700 connects the first spiral rail spike 100 and the second spiral rail spike 200 into one unit. The two spiral rail spikes apply pressure to the spring clip 300 as a whole through the cover plate 700, ensuring that the pressure of the spiral rail spikes on the spring clip 300 is balanced. The cover plate 700 is a steel plate with a through hole in the middle to allow the two spiral rail spikes to pass through and simultaneously clamp the spring clip 300.

[0067] like Figure 1 , Figure 2 and Figure 8 As shown, this embodiment of the invention also provides a railway rail fastening system, including a sleeper 800 and a rail fastener as described in the above embodiment. The sleeper 800 is provided with an installation groove 810. The interior of the sleeper 800 is provided with a first pre-embedded threaded tube 820 and a second pre-embedded threaded tube 830. The rail fastener is disposed in the installation groove 810. The bottom of the installation groove 810 is provided with a limiting groove 840. A first spiral rail spike 100 is screwed into the first pre-embedded threaded tube 820, and a second spiral rail spike 200 is screwed into the second pre-embedded threaded tube 830.

[0068] The railway rail fastening system of this invention provides a special fastening system for heavy-haul railways. The sleeper 800 is provided with a first pre-embedded threaded tube 820 and a second pre-embedded threaded tube 830. The first spiral rail spike 100 and the second spiral rail spike 200 are respectively matched with the first pre-embedded threaded tube 820 and the second pre-embedded threaded tube 830. The upper surface of the sleeper 800 forms a downward mounting groove 810. The mounting groove 810 has two shoulders 850 on both sides in the lateral direction. The second side plate 450 of the rail gauge baffle 400 in the rail fastening system abuts against the shoulders 850. A limiting groove 840 is provided in the middle of the mounting groove 810, which is suitable for cooperating with the first protrusion 610 of the rail pad 600. The pre-embedded threaded tube is provided between the limiting groove 840 and the shoulders 850.

[0069] In this embodiment, the rail 900 is longitudinally positioned within the mounting groove 810, and fasteners are symmetrically installed on both sides of its transverse direction to ensure a balanced and stable clamping force between the fasteners and the rail 900. The installation method of the spiral spike and the pre-embedded bolt is also relatively simpler than that of conventional fasteners, making tightening convenient and maintenance easy.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rail fastener, characterized in that: The system includes a first spiral rail spike, a second spiral rail spike, a spring clip, and a gauge baffle. The spring clip forms a first installation channel and a second installation channel. The gauge baffle has a first installation hole and a second installation hole. The first spiral rail spike passes through the first installation channel and the first installation hole in sequence and connects to the sleeper. The second spiral rail spike passes through the second installation channel and the second installation hole in sequence and connects to the sleeper. The spring clip includes two front ends and two rear ends. The two front ends are used to press against the side edge of the rail, and the two rear ends press against the gauge baffle. The spring clip also includes a first spring arm, a second spring arm, and a third spring arm. The second spring arm is located between the first spring arm and the third spring arm. The first spring arm is connected to the second spring arm through one of its rear ends and restricts the first installation channel. The second spring arm is connected to the third spring arm through the other rear end and restricts the second installation channel. The first spring arm is connected to one of its front ends, and the third spring arm is connected to the other rear end. The spring bar also includes a first intermediate end and a second intermediate end, which are disposed on the same side as the front end. The first intermediate end and the second intermediate end are symmetrically disposed on both sides of the second spring arm and are both connected to the second spring arm. The first intermediate end extends towards one of the front ends, and the second intermediate end extends towards the other front end. The spring bar also includes a gauge block, which is sandwiched between the rail and the gauge baffle. The upper surface of the gauge block is provided with a groove, and the first intermediate end and the second intermediate end are both embedded in the groove. The spring bar also includes a cover plate, which is provided with a first through hole and a second through hole. The first spiral rail spike passes through the first through hole and enters the first installation channel, and the second spiral rail spike passes through the second through hole and enters the second installation channel. The cover plate connects the two spiral rail spikes of the first spiral rail spike and the second spiral rail spike into one unit. The two spiral rail spikes apply pressure to the spring bar as a whole through the cover plate to ensure that the pressure of the spiral rail spikes on the spring bar is balanced.

2. The rail fastener according to claim 1, characterized in that: The gauge block has two protrusions on the side that abuts against the gauge baffle, and the vertical distance between the two protrusions is the length of the gauge baffle along the extension direction of the rail.

3. The rail fastener according to claim 1, characterized in that: It also includes a rail pad, which has a first protrusion for embedding into the limiting groove of the sleeper.

4. The rail fastener according to claim 3, characterized in that: The rail pad is also provided with two second protrusions, which are respectively located on both sides of the first protrusion. The vertical distance between the two second protrusions is the length of the sleeper along the extension direction of the rail.

5. The rail fastener according to claim 1, characterized in that: The gauge baffle includes a base plate and a first side plate, a second side plate, and two reinforcing ribs disposed on the upper surface of the base plate. The first side plate and the second side plate are disposed opposite each other. The first side plate abuts against the gauge block, and the second side plate abuts against the sleeper. The two reinforcing ribs are disposed between the first side plate and the second side plate. The first mounting hole and the second mounting hole are both disposed on the base plate and located between the two reinforcing ribs. The ends of the two reinforcing ribs near the second side plate are respectively constructed with recesses, and the two rear ends are respectively pressed into the two recesses.

6. A railway rail fastening system, characterized in that: The system includes a sleeper and a rail fastener as described in any one of claims 1 to 5. The sleeper is provided with an installation groove, and the interior of the sleeper is provided with a first pre-embedded threaded tube and a second pre-embedded threaded tube. The rail fastener is disposed in the installation groove, and the bottom of the installation groove is provided with a limiting groove. The first spiral rail spike is screwed into the first pre-embedded threaded tube, and the second spiral rail spike is screwed into the second pre-embedded threaded tube.

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