CN118292307A - Rail fastener and railway rail fastener system - Google Patents

Abstract

The present invention relates to the technical field of transportation equipment, and in particular to a rail fastener and a railway rail fastener system, wherein the rail fastener comprises a first spiral spike, a second spiral spike, a spring bar and a gauge baffle, wherein the spring bar surrounds a first mounting channel and a second mounting channel, and the gauge baffle is provided with a first mounting hole and a second mounting hole, wherein the first spiral spike is sequentially passed through the first mounting channel and the first mounting hole and connected to the sleeper, wherein the second spiral spike is sequentially passed through the second mounting channel and the second mounting hole and connected to the sleeper, and the spring bar comprises two front ends and two rear ends, wherein the two front ends are used to be pressed against the side edges of the rails, and the two rear ends are pressed against the gauge baffle. When the impact effect of a train with increased axle weight on the track structure and the fasteners is significantly increased, the impact force can be effectively released to avoid the breakage of the spring bar or damage to the fasteners, or the rail creeping problem due to insufficient longitudinal resistance, thereby ensuring the operation safety of the train.

Description

Rail fasteners and railway rail fastening systems

Technical Field

The present invention relates to the technical field of transportation equipment, and in particular to a rail fastener and a railway rail fastener system.

Background technique

As one of the important components of railway tracks, the fastener system fixes the rails on the sleepers, maintains the track gauge and prevents the rails from moving longitudinally and transversely relative to the sleepers. The fasteners should be able to maintain a reliable connection between the rails and the sleepers for a long time and effectively, and give full play to their buffering and shock-absorbing performance under dynamic action to delay the accumulation of residual deformation of the track. Therefore, it is required to have sufficient strength, durability and certain elasticity. In addition, the fastener system for heavy-duty railway rails should also have greater buckling pressure, longitudinal resistance and stability.

At present, the fastener system generally uses a single anchor bolt and nut or a single spiral spike and embedded spiral tube to realize the spring clip buckling rail, buffering the track stress and realizing the longitudinal position limit of the track. For heavy-duty railways, due to the increase in axle weight, especially the emergence of 30t and 40t axle weight trains, the impact effect of the train on the track structure, especially the fastener system, has increased significantly. Due to the inability to effectively release, the spring clip will break in some sections, or the fastener system components will be damaged, or the rail will creep due to insufficient longitudinal resistance, which poses a great safety hazard to the operation of the train.

Summary of the invention

The present invention provides a rail fastener and a railway rail fastener system to solve one of the defects in the prior art. When the impact effect of a train with increased axle weight on the track structure and fasteners is significantly increased, the impact force can be effectively released to avoid spring bar breakage or fastener damage, or rail creep due to insufficient longitudinal resistance, thereby ensuring the safe operation of the train.

The present invention provides a rail fastener, comprising a first spiral spike, a second spiral spike, an elastic bar and a gauge baffle, wherein the elastic bar encloses a first mounting channel and a second mounting channel, the gauge baffle is provided with a first mounting hole and a second mounting hole, the first spiral spike is sequentially penetrated through the first mounting channel and the first mounting hole, and is connected to a sleeper, the second spiral spike is sequentially penetrated through the second mounting channel and the second mounting hole, and is connected to the sleeper, the elastic bar comprises two front end portions and two rear end portions, the two front end portions are used to be pressed onto the side edges of the rail, and the two rear end portions are pressed onto the gauge baffle.

According to a rail fastener provided by the present invention, the elastic bar also 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 the rear ends and limits the first installation channel, the second elastic arm is connected to the third elastic arm through the other of the rear ends and limits the second installation channel, the first elastic arm is connected to one of the front ends, and the third elastic arm is connected to the other of the front ends.

According to a rail fastener provided by the present invention, the elastic bar also includes a first middle end and a second middle end arranged on the same side as the front end, the first middle end and the second middle end are symmetrically arranged on both sides of the second elastic arm and are both connected to the second elastic arm, the first middle end extends toward one of the front ends, and the second middle end extends toward the other of the front ends.

A rail fastener provided according to the present invention also 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 middle end and the second middle end are both embedded in the groove.

According to a rail fastener provided by the present invention, the gauge block is provided with two protrusions on one side abutting against the gauge baffle, and the vertical distance between the two protrusions is the length of the gauge baffle along the extending direction of the rail.

A rail fastener provided according to the present invention further includes a rail pad, the rail pad is provided with a first protrusion, and the first protrusion is used to be embedded in the limiting groove of the sleeper.

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 arranged 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.

According to a rail fastener provided by the present invention, the gauge baffle includes a bottom plate and a first side plate, a second side plate and two reinforcing ribs arranged on the upper surface of the bottom plate, the first side plate and the second side plate are arranged opposite to each other, the first side plate abuts against the gauge block, the second side plate is used to abut against the sleeper, the two reinforcing ribs are arranged between the first side plate and the second side plate, the first mounting hole and the second mounting hole are both arranged in the bottom plate and located between the two reinforcing ribs, the ends of the two reinforcing ribs close to the second side plate are respectively constructed with recesses, and the two rear ends are respectively pressed into the two recesses.

A rail fastener provided according to the present invention also includes a cover plate, the cover plate is provided with a first through hole and a second through hole, the first spiral spike is penetrated through the first through hole and enters the first installation channel, and the second spiral spike is penetrated through the second through hole and enters the second installation channel.

The present invention also provides a railway rail fastener system, comprising a sleeper and the rail fastener as described above, the sleeper being provided with an installation groove, the interior of the sleeper being provided with a first embedded screw tube and a second embedded screw tube, the rail fastener being arranged in the installation groove, the bottom of the installation groove being provided with a limiting groove, the first spiral spike being screwed into the first embedded screw tube, and the second spiral spike being screwed into the second embedded screw tube.

The rail fastener provided by the present invention is arranged on the sleeper and located in the width direction of the rail, so as to realize the buckling and fixing of the rail on the sleeper. The spring bar is bent by itself to form two relatively independent installation channels, namely the first installation channel and the second installation channel, and the gauge baffle is provided with the first installation hole and the second installation hole correspondingly, the first bolt spike passes through the first installation channel and the first installation hole in sequence from top to bottom, and then is connected to the sleeper, and the second bolt spike passes through the second installation channel and the second installation hole in sequence from top to bottom, and then is connected to the sleeper.

In the transverse direction, the end of the spring bar close to the rail is configured as the front end, and the end of the spring bar away from the rail is configured as the rear end. After the first bolt spike and the second bolt spike are tightened, they can be directly pressed on the spring bar, with the front end pressing the upper surface of the side edge located on the width of the rail, and the rear end pressing on the gauge baffle, so that the spring bar can buckle and fix the rail on the sleeper. The spring bar can produce elastic deformation, buffer the track stress, and fix the longitudinal position of the rail on the sleeper. The two sides of the gauge block in the transverse direction respectively abut the rail and the sleeper, thereby fixing the transverse position of the rail on the sleeper.

The double spiral spike is formed by the first bolt spike and the second spiral spike, and the spring bar is first fixed on the gauge baffle, and then the spring bar and the gauge baffle are fixed on the sleeper as a whole, which increases the longitudinal resistance of the track structure and ensures the stability of the track structure. Moreover, since the action length of the spring bar is longer than that of the traditional spring bar, it is longer in the length direction of the rail, further increasing the longitudinal resistance of the fastener on the rail. Compared with the prior art of using a single anchor bolt and nut or a single spiral spike and embedded solenoid to realize the spring bar clamping rail, the embodiment of the present invention can effectively release the impact force when the impact effect of the train with increased axle weight on the track structure and fasteners is significantly increased, avoiding the breakage of the spring bar or the damage of the fastener, or the rail creeping problem due to insufficient longitudinal resistance, thereby ensuring the safe operation of the train.

In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted, and the advantages brought about by the technical features of these technical solutions 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 understood through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a railway rail fastener system according to an embodiment of the present invention;

FIG2 is a second schematic diagram of the structure of the railway rail fastener system provided by an embodiment of the present invention;

FIG3 is a schematic structural diagram of a spring bar of a rail fastener provided in an embodiment of the present invention;

4 is a schematic structural diagram of a gauge block of a rail fastener provided in an embodiment of the present invention;

5 is a schematic structural diagram of a rail pad of a rail fastener provided in an embodiment of the present invention;

6 is a schematic structural diagram of a gauge baffle of a rail fastener provided in an embodiment of the present invention;

7 is a schematic structural diagram of a cover plate of a rail fastener provided in an embodiment of the present invention;

FIG8 is a schematic structural diagram of a sleeper of a railway rail fastener system provided in an embodiment of the present invention.

Reference numerals:

100, first spiral spike; 200, second spiral spike;

300, elastic 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 elastic arm; 360, second elastic arm; 370, third elastic arm; 381, first middle end; 382, second middle end;

400, track gauge baffle; 410, first mounting hole; 420, second mounting hole; 430, bottom 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;

500, gauge block; 510, groove; 521, first convex portion; 522, second convex portion; 530, bayonet;

600, rail bottom pad; 610, first protrusion; 620, second protrusion;

700, cover plate; 710, first through hole; 720, second through hole;

800, rail sleeper; 810, mounting groove; 820, first embedded screw tube; 830, second embedded screw tube; 840, limiting groove; 850, pillow shoulder;

900. Rails.

Detailed ways

The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and 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 devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

In addition, in the description of the embodiments of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more, and "several", "several roots", and "several groups" mean one or more.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

The extending direction of the rail is its length direction, which is defined as the longitudinal direction, and the horizontal direction perpendicular to the extending direction of the rail is the width direction of the rail, which is defined as the transverse direction.

As shown in FIGS. 1 , 2 , 3 and 6 , a rail fastener provided in an embodiment of the present invention includes a first spiral spike 100, a second spiral spike 200, a spring bar 300 and a gauge baffle 400. The spring bar 300 encloses a first mounting channel 310 and a second mounting channel 320. The gauge baffle 400 is provided with a first mounting hole 410 and a second mounting hole 420. The first spiral spike 100 is sequentially penetrated through the first mounting channel 310 and the first mounting hole 410 and connected to a sleeper 800. The second spiral spike 200 is sequentially penetrated through the second mounting channel 320 and the second mounting hole 420 and connected to the sleeper 800. The spring bar 300 includes two front end portions and two rear end portions. The two front end portions are used to be pressed on the side edges of the rail 900, and the two rear end portions are pressed on the gauge baffle 400.

The rail fastener of the embodiment of the present invention is arranged on the sleeper 800 and located in the width direction of the rail 900, so as to realize the fastening and fixing of the rail 900 on the sleeper 800. The spring bar 300 is bent to form two relatively independent installation channels, namely the first installation channel 310 and the second installation channel 320, and the gauge baffle 400 is provided with a first installation hole 410 and a second installation hole 420 correspondingly. The first bolt spike passes through the first installation channel 310 and the first installation hole 410 from top to bottom in sequence, and then is connected to the sleeper 800. The second bolt spike passes through the second installation channel 320 and the second installation hole 420 in sequence from top to bottom, and then is connected to the sleeper 800.

In the transverse direction, the end of the spring bar 300 close to the rail 900 is configured as the front end, and the end of the spring bar 300 away from the rail 900 is configured as the rear end. After the first bolt spike and the second bolt spike are tightened, they can be directly pressed on the spring bar 300, with the front end pressing the upper surface of the side edge located on the width of the rail 900, and the rear end pressing the gauge baffle 400, so as to realize the buckling and fixing of the rail 900 on the sleeper 800 by the spring bar 300. The spring bar 300 can produce elastic deformation, buffer the track stress, and realize the longitudinal position fixation of the rail 900 on the sleeper 800. The two sides of the gauge block in the transverse direction respectively abut the rail 900 and the sleeper 800, thereby realizing the transverse position fixation of the rail 900 on the sleeper 800.

The double spiral spike is formed by the first bolt spike and the second spiral spike 200, and the spring bar 300 is first fixed on the gauge baffle 400, and then the spring bar 300 and the gauge baffle 400 are fixed on the sleeper 800 as a whole, thereby increasing the longitudinal resistance of the track structure and ensuring the stability of the track structure. Moreover, since the action length of the spring bar 300 is longer than that of the traditional spring bar 300, it is longer in the length direction of the rail 900, further increasing the longitudinal resistance of the fastener on the rail 900. Compared with the prior art of using a single anchor bolt and a nut or a single spiral spike and a pre-embedded solenoid to realize the spring bar 300 buckling the rail 900, the embodiment of the present invention can effectively release the impact force when dealing with the significantly increased impact effect of the train with increased axle weight on the track structure and the fastener, avoiding the breakage of the spring bar 300 or the damage of the fastener, or the creeping problem of the rail 900 due to insufficient longitudinal resistance, thereby ensuring the running safety of the train.

According to an embodiment provided by the present invention, the elastic bar 300 also includes a first elastic arm 350, a second elastic arm 360 and a third elastic arm 370, the second elastic arm 360 is located between the first elastic arm 350 and the third elastic arm 370, the first elastic arm 350 is connected to the second elastic arm 360 through a rear end and limits the first installation channel 310, the second elastic arm 360 is connected to the third elastic arm 370 through another rear end and limits the second installation channel 320, the first elastic arm 350 is connected to a front end, and the third elastic arm 370 is connected to the other front end.

In this embodiment, the elastic bar 300 has an appearance similar to an "m" shape, and the extension direction of the front end and the rear end are both longitudinally extended, which increases the longitudinal buckling length range of the elastic bar 300 on the rail 900. The first elastic arm 350 and the third elastic arm 370 play the role of connecting the front end and the rear end. 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, 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 installation channel 310 from the second installation channel 320, and the first rear end 341 and the second rear end 342 are connected to the right end of the second elastic arm 360.

After passing through the first installation channel 310 and the second installation 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 compress the first elastic arm 350, the second elastic arm 360 and the third elastic arm 370, thereby transmitting the force so that the front end acts on the rail 900 and the rear end acts on the gauge stopper.

According to an embodiment provided by the present invention, the elastic bar 300 also includes a first intermediate end 381 and a second intermediate end 382 arranged on the same side as the front end, the first intermediate end 381 and the second intermediate end 382 are symmetrically arranged on both sides of the second elastic arm 360 and are both connected to the second elastic arm 360, the first intermediate end 381 extends toward one front end, and the second intermediate end 382 extends toward the other front end.

In this embodiment, the first middle end 381 and the second middle end 382 are both arranged at the left end of the second elastic arm 360, that is, the end portion of the second elastic arm 360 close to the rail 900 is bifurcated to form the first middle end 381 and the second middle end 382, the first front end 331 and the second front end 332 extend in opposite directions, the first middle end 381 and the second middle end 382 are arranged between the first front end 331 and the second front end 332, and the extension directions of the two are also consistent with the first front end 331 and the second front end 332. The arrangement of the two front ends, the first middle end 381 and the second middle end 382 can further increase the buckling range of the spring bar 300 on the rail 900 in the longitudinal direction, thereby increasing the pressure of the spring bar 300 on the rail 900.

In this embodiment, the first front end portion 331, the first elastic arm 350 and the first rear end portion 341 are an integral part of the bent elastic strip 300, the second front end portion 332, the third elastic arm 370 and the second rear end portion 342 are an integral part of the bent elastic strip 300, the two parts are symmetrically arranged relative to the second elastic arm 360, and 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 form. In this way, it is ensured that the three elastic arms can all exert force on the rail 900.

As shown in FIG4 , according to an embodiment provided by the present invention, the rail fastener further includes a gauge block 500, the gauge block 500 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 the first middle end 381 and the second middle end 382 are both 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 cooperates with the gauge baffle 400 to limit 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 middle end 381 and the second middle end 382 are integrally embedded in the groove 510, that is, the groove 510 limits the longitudinal position of the first middle end 381 and the second middle end 382.

In this embodiment, the first front end portion 331 and the second front end portion 332 also fall on the gauge block 500, and the groove 510 is located in the middle position of the upper surface of the gauge block 500. The first front end portion 331 and the second front end portion 332 fall on the front and rear sides of the groove 510, that is, the spring 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 to avoid the longitudinal and lateral movement of the spring bar 300 on the surface of the gauge block 500, and better fixes the spring bar 300 on the gauge block 500 to ensure that the longitudinal resistance to the rail 900 is increased while achieving the positioning of the installation of the spring bar 300, thereby improving its positioning accuracy during installation and better increasing its longitudinal resistance and stability.

In this embodiment, a bayonet 530 is provided on the lower surface of the gauge block 500 on the side close to the rail 900, and the side edge of the rail 900 is inserted into the bayonet 530, so that the upper portion of the gauge block 500 of the bayonet 530 can be placed on the upper surface of the side edge of the rail 900 to buckle the rail 900.

According to an embodiment provided by the present invention, the gauge block 500 is provided with two protrusions on one side abutting against the gauge baffle 400, and the vertical distance between the two protrusions is the length of the gauge baffle 400 along the extending direction of the rail 900. In this embodiment, the gauge block 500 is sequentially provided with two protrusions along the longitudinal direction, and in the process of abutting against 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, so that the longitudinal positioning of the gauge baffle 400 on the sleeper 800 is achieved through the two protrusions.

In this embodiment, the two protrusions are the first protrusion 521 and the 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 tightly attached to the gauge baffle 400, thereby realizing the lateral and longitudinal limitation of the gauge baffle 400 on the sleeper 800.

As shown in FIG5 , according to an embodiment provided by the present invention, the rail fastener further comprises a rail pad 600, and the rail pad 600 is provided with a first protrusion 610, and the first protrusion 610 is used to be embedded in the 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 the limiting groove 840, and 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.

In this embodiment, the first protrusion 610 is located in the middle position of the lower surface of the rail pad 600, the limiting groove 840 is also located in the middle position of the sleeper 800, and the limiting groove 840 is at 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 position of the rail pad 600 on the sleeper 800 can be fixed.

According to an embodiment provided by the present invention, the rail pad 600 is further provided with two second protrusions 620, which are respectively arranged on both sides of the first protrusion 610, and the vertical distance between the two second protrusions 620 is the length of the sleeper 800 along the extension direction of the rail 900. In this embodiment, two second protrusions 620 are further arranged on the lower surface of the rail pad 600, and the two second protrusions 620 are respectively the extensions of the two end edges of the rail pad 600 in the longitudinal direction, and 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, and its installation accuracy and stability are improved.

According to an embodiment provided by the present invention, the gauge baffle 400 includes a bottom plate 430 and a first side plate 440, a second side plate 450 and two reinforcing ribs arranged on the upper surface of the bottom plate 430, the first side plate 440 and the second side plate 450 are arranged opposite to each other, the first side plate 440 abuts against the gauge block 500, the second side plate 450 is used to abut against the sleeper 800, the two reinforcing ribs are arranged 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 arranged on the bottom plate 430 and are located between the two reinforcing ribs, the two reinforcing ribs are respectively constructed with recesses at the ends close to the second side plate 450, and the two rear ends are respectively pressed into the two recesses.

In this embodiment, the first side plate 440 of the gauge baffle 400 is located on the left side of the bottom plate 430, and the second side plate 450 is located on the right side of the bottom plate 430. The two reinforcing ribs are the first reinforcing rib 461 and the second reinforcing rib 462. The first reinforcing rib 461 and the second reinforcing rib 462 are sequentially arranged along the longitudinal direction on the bottom plate 430. The upper surface of the reinforcing rib is an inclined surface, which gradually inclines downward from the first side plate 440 to the second side plate 450, and forms a first recess 463 and a second recess 464 at the end near the second side plate 450. The recess cooperates with the side surface of the second side plate 450, and the first rear end 341 of the spring bar 300 is embedded in the first recess 463, and the second rear end 342 is embedded in the second recess 464. Therefore, the recess provides a limit fixation for the rear end of the spring bar 300, thereby improving the installation stability of the spring bar 300.

In this embodiment, the first side plate 440 is provided with 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 middle end 381 and the second middle end 382 onto the gauge block 500, thereby realizing the installation and fixation between the gauge block 500 and the gauge baffle 400.

As shown in FIG. 7 , according to an embodiment provided by the present invention, the rail fastener further includes a cover plate 700 , the cover plate 700 is provided with a first through hole 710 and a second through hole 720 , the first spiral spike 100 is passed through the first through hole 710 to enter the first installation channel 310 , and the second spiral spike 200 is passed through the second through hole 720 to enter the second installation channel 320 .

In this embodiment, the cover plate 700 connects the two spiral spikes of the first spiral spike 100 and the second spiral spike 200 into one body, and the two spiral spikes apply pressure to the spring bar 300 as a whole through the cover plate 700, ensuring that the pressure of the spiral spikes on the spring bar 300 is balanced. The cover plate 700 is a steel flat plate with a through hole in the middle, so that the two spiral spikes can pass through and buckle the spring bar 300 at the same time.

As shown in Figures 1, 2 and 8, an embodiment of the present invention further provides a railway rail fastener system, including a sleeper 800 and a rail fastener as in the above embodiment, the sleeper 800 is provided with a mounting groove 810, the interior of the sleeper 800 is provided with a first embedded screw tube 820 and a second embedded screw tube 830, the rail fastener is arranged in the mounting groove 810, the bottom of the mounting groove 810 is provided with a limiting groove 840, the first spiral spike 100 is screwed into the first embedded screw tube 820, and the second spiral spike 200 is screwed into the second embedded screw tube 830.

The railway rail fastener system of the embodiment of the present invention provides a special fastener system for heavy-duty railways, wherein a first embedded screw tube 820 and a second embedded screw tube 830 are arranged inside a sleeper 800, and the first spiral spike 100 and the second spiral spike 200 used are matched with the first embedded screw tube 820 and the second embedded screw tube 830 respectively, and a mounting groove 810 is formed downward on the upper surface of the sleeper 800, and two pillow shoulders 850 are formed on both sides of the mounting groove 810 in the transverse direction, and the second side plate 450 of the gauge baffle 400 in the rail fastener abuts against the pillow shoulder 850, and a limiting groove 840 is arranged in the middle of the mounting groove 810, which is suitable for cooperating with the first protrusion 610 of the rail bottom pad 600, and the embedded screw tube is arranged between the limiting groove 840 and the pillow shoulder 850.

In this embodiment, the rail 900 is longitudinally arranged in the installation groove 810, and the fasteners are symmetrically installed on both sides of the rail 900 to ensure that the fasteners are balanced and stable in pressing the rail 900. The installation method of the spiral spike and the embedded spiral tube is relatively simple compared to conventional fasteners, and is convenient for tightening and maintenance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A rail fastener, characterized in that it comprises a first spiral spike, a second spiral spike, an elastic bar and a gauge baffle, the elastic bar enclosing a first mounting channel and a second mounting channel, the gauge baffle being provided with a first mounting hole and a second mounting hole, the first spiral spike being sequentially passed through the first mounting channel and the first mounting hole and connected to a sleeper, the second spiral spike being sequentially passed through the second mounting channel and the second mounting hole and connected to the sleeper, the elastic bar comprising two front end portions and two rear end portions, the two front end portions being used to be pressed onto the side edge of the rail, and the two rear end portions being pressed onto the gauge baffle. 2. The rail fastener according to claim 1 is characterized in that: the elastic bar also 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 the rear ends and limits the first installation channel, the second elastic arm is connected to the third elastic arm through the other rear end and limits the second installation channel, the first elastic arm is connected to one of the front ends, and the third elastic arm is connected to the other front end. 3. The rail fastener according to claim 2 is characterized in that: the elastic bar also includes a first middle end and a second middle end arranged on the same side as the front end, the first middle end and the second middle end are symmetrically arranged on both sides of the second elastic arm and are both connected to the second elastic arm, the first middle end extends toward one of the front ends, and the second middle end extends toward the other of the front ends. 4. The rail fastener according to claim 3 is characterized in that it also includes a gauge block, wherein the gauge block is clamped between the rail and the gauge baffle, and a groove is provided on the upper surface of the gauge block, and the first middle end portion and the second middle end portion are both embedded in the groove. 5. The rail fastener according to claim 4, characterized in that: the gauge block is provided with two protrusions on one side abutting against the gauge baffle, and the vertical distance between the two protrusions is the length of the gauge baffle along the extending direction of the rail. 6. The rail fastener according to claim 1, characterized in that it also includes a rail pad, the rail pad is provided with a first protrusion, and the first protrusion is used to be embedded in the limiting groove of the sleeper. 7. The rail fastener according to claim 6 is characterized in that: the rail pad is also provided with two second protrusions, the two second protrusions are respectively arranged 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. 8. The rail fastener according to claim 4 is characterized in that: the gauge baffle includes a base plate and a first side plate, a second side plate and two reinforcing ribs arranged on the upper surface of the base plate, the first side plate and the second side plate are arranged opposite to each other, the first side plate abuts against the gauge block, the second side plate is used to abut against the sleeper, the two reinforcing ribs are arranged between the first side plate and the second side plate, the first mounting hole and the second mounting hole are both arranged on the base plate and located between the two reinforcing ribs, the ends of the two reinforcing ribs close to the second side plate are respectively constructed with recesses, and the two rear ends are respectively pressed into the two recesses. 9. The rail fastener according to any one of claims 1 to 8, characterized in that it also includes a cover plate, the cover plate is provided with a first through hole and a second through hole, the first spiral spike is penetrated through the first through hole and enters the first installation channel, and the second spiral spike is penetrated through the second through hole and enters the second installation channel. 10. A railway rail fastener system, characterized in that it comprises a sleeper and a rail fastener as described in any one of claims 1 to 9, the sleeper is provided with a mounting groove, a first embedded screw and a second embedded screw are provided inside the sleeper, the rail fastener is arranged in the mounting groove, a limiting groove is provided at the bottom of the mounting groove, the first spiral spike is screwed into the first embedded screw, and the second spiral spike is screwed into the second embedded screw.