Guardrail device for railway track

Abstract

The utility model provides a guardrail device for a railway track, and relates to the field of railway track structures. The guardrail device for the railway track comprises a mounting base plate, a guardrail supporting plate, a nut and a bolt. The mounting base plate is used for being attached to the guard rail. The guard rail supporting plate is used for supporting the guard rail; the nut is fixedly arranged on the mounting base plate, and the bolt is used for sequentially penetrating through the guard rail supporting plate, the guard rail and the mounting base plate and is in threaded fit with the nut. Or the head of the bolt is fixedly arranged on the mounting base plate, and the bolt is used for sequentially penetrating through the mounting base plate, the guard rail and the guard rail supporting plate and is in threaded fit with the nut. The head of a bolt or a nut can be conveniently and quickly tightened from one side of the guard rail supporting plate through an electric wrench, so that mechanical operation is carried out, and the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of track structures, in particular to a rail guard device for railway tracks. Background Art

[0002] During the service life of railway turnouts, the guardrails are often subject to wear and tear due to the impact of passing trains on the tracks. The mounting bolts can also loosen due to dynamic impact vibration, causing changes in the track laying state and the guardrail flange groove dimensions. Failure to promptly maintain and adjust these structures can easily lead to traffic accidents. Therefore, regular inspections of the guardrail flange groove dimensions are essential, and the guardrail structure must be disassembled for adjustment and maintenance to meet standard requirements. On heavily trafficked sections, guardrails experience high levels of wheel impact, leading to rapid wear and tear, necessitating frequent disassembly and installation.

[0003] However, bolts and nuts are usually used to fix the guard rail against the structure of the guard rail support plate (such as Figure 1 and Figure 2 As shown in the figure, first fix one side of the bolt head to one end of the guardrail support plate, and then tighten the nut to tighten the bolt and place the nut close to the waist of the guardrail and at the bottom of the guardrail head. In this method, since the nut is located in the wheel flange groove between the guardrail and the base rail, the space is limited and it is not convenient to turn it with a wrench, resulting in installation difficulties. In addition, it is impossible to use an electric wrench to carry out mechanized operations to achieve rapid tightening and disassembly, which affects construction efficiency. Utility Model Content

[0004] The utility model provides a rail guard device for railway tracks, which can facilitate an electric wrench to quickly tighten a bolt head or a nut from the side of a rail guard support plate, thereby carrying out mechanized operations and significantly improving installation efficiency.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] In a first aspect, the present invention provides a rail guard device for a railway track, comprising:

[0007] A mounting plate, the mounting plate being used to be attached to the guardrail;

[0008] A guard rail support plate, the guard rail support plate is used to support the guard rail;

[0009] A nut and a bolt, wherein the nut is fixedly arranged on the mounting plate, and the bolt is used to sequentially penetrate the guardrail support plate, the guardrail, and the mounting plate and cooperate with the nut thread; or, the head of the bolt is fixedly arranged on the mounting plate, and the bolt is used to sequentially penetrate the mounting plate, the guardrail and the guardrail support plate and cooperate with the nut thread.

[0010] In an optional embodiment, the mounting plate is provided with a mounting groove, the bottom wall of the mounting groove is provided with a first through hole, the rod of the bolt is passed through the first through hole, and the nut or the head of the bolt is embedded in the mounting groove and fixedly engaged with the mounting groove.

[0011] In an optional embodiment, the mounting groove is provided with a plurality of first abutment walls, and the plurality of first abutment walls correspond one-to-one to the plurality of side walls of the nut or the bolt head.

[0012] In an optional embodiment, the mounting pad includes a first wall surface and a second wall surface, the mounting groove is provided on the first wall surface, and the second wall surface is used to be attached to the guard rail.

[0013] In an optional embodiment, the rail guard device for the railway track further includes an anti-loosening cap, the anti-loosening cap is provided with a first clamping portion, the rail guard support plate is provided with a second through hole and a second clamping portion, the rod of the bolt is passed through the second through hole, the first clamping portion and the second clamping portion are clamped and fitted, and the anti-loosening cap is sleeved on the head of the bolt or the nut.

[0014] In an optional embodiment, the guard rail support plate is further provided with a boss, which is located on the peripheral side of the second through hole, and is used to increase the distance between the head of the bolt or the nut and the guard rail support plate.

[0015] In an optional embodiment, the guardrail support plate includes a support plate body and an anti-loosening base, and the first clamping portion and the boss are both arranged on the anti-loosening base; the anti-loosening base is detachably connected to the support plate body, or the anti-loosening base is integrally formed with the support plate body.

[0016] In an optional embodiment, the rail guard device for railway track further includes a fastener, the first holding portion is provided with a first mounting hole, the second holding portion is provided with a second mounting hole, and the fastener passes through the first mounting hole and the second mounting hole in sequence.

[0017] In an optional embodiment, the anti-loosening cap is provided with a plurality of second abutment walls, the plurality of second abutment walls are sequentially connected to form a ring shape, and any two adjacent second abutment walls match the adjacent two side walls of the bolt head or the nut.

[0018] In an optional embodiment, the railway track guardrail device further comprises a railway pad and a guardrail pad, the railway pad is used to carry the stock rail and the guardrail pad, and the guardrail support plate is used to carry the guardrail and the guardrail support plate;

[0019] The railway pad, the guardrail pad and the guardrail support plate are connected, or the railway pad, the guardrail pad and the guardrail support plate are integrally formed.

[0020] The beneficial effects of the rail guard device for railway tracks provided by the embodiment of the present invention include: setting the mounting plate on the side of the guard rail close to the base rail so as to fix the head of the nut or bolt through the mounting plate; when the nut is fixed on the mounting plate, the bolt is sequentially passed through the guard rail support plate, the guard rail and the mounting plate, and finally matched with the nut thread set on the mounting plate; and when the head of the bolt is fixed on the mounting plate, the rod of the bolt is sequentially passed through the mounting plate, the guard rail and the guard rail support plate, and finally matched with the nut thread, so that the guard rail support plate can be firmly installed on the guard rail. In the above two installation methods, since the mounting plate can fix the nut or bolt head, it is convenient for the electric wrench to quickly tighten the bolt head or nut from the side of the guard rail support plate, thereby carrying out mechanized operations, thereby significantly improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of an existing track from a first perspective provided in an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the second perspective structure of an existing track provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the installation structure of a rail guard device for railway tracks provided by an embodiment of the utility model;

[0025] Figure 4 An exploded view from the first perspective of a rail guard device for a railway track provided by an embodiment of the utility model;

[0026] Figure 5 An exploded view from a second perspective of the rail guard device for railway tracks provided by an embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the mounting plate structure provided in an embodiment of the present utility model;

[0028] Figure 7 A schematic diagram of the anti-loosening base structure provided by an embodiment of the utility model;

[0029] Figure 8 A schematic diagram of the anti-loosening cap structure provided by an embodiment of the utility model;

[0030] Figure 9 A schematic structural diagram of a first embodiment of a support plate body provided by an embodiment of the present utility model;

[0031] Figure 10 A schematic structural diagram of a second embodiment of the support plate body provided by an embodiment of the present utility model;

[0032] Figure 11 A schematic structural diagram of a third embodiment of the support plate body provided by an embodiment of the present utility model;

[0033] Figure 12 A schematic structural diagram of a fourth embodiment of the support plate body provided by an embodiment of the present utility model;

[0034] Figure 13 This is a partial structural diagram of a rail guard device for railway tracks provided in an embodiment of the utility model.

[0035] Icons: 10-rail guard device for railway track; 100-mounting pad; 110-mounting groove; 111-first abutment wall; 120-first through hole; 130-first wall surface; 140-second wall surface; 200-rail guard support plate; 210-support plate body; 211-second through hole; 220-anti-loosening base; 221-second clamping part; 222-boss; 223-second mounting hole; 224-avoidance part; 225-reinforcement rib; 226-third through hole; 300-nut; 400-bolt; 500-anti-loosening cap; 510-first clamping part; 520-first mounting hole; 530-second abutment wall; 600-fastener; 700-gasket; 800-railway pad; 900-rail guard plate; 20-guard rail; 30-basic rail. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0040] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0041] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0042] After a certain period of use of a railway turnout, in order to ensure that the guardrail can always play a protective role, a guardrail support plate is usually set on the side of the guardrail away from the rail to support the guardrail. However, the guardrail support plate is usually fixed with bolts and nuts (such as Figure 1 As shown in the figure, it is not convenient to use a wrench to turn it, which makes installation difficult. In addition, it is not possible to use an electric wrench to carry out mechanized operations to achieve fast tightening, which affects construction efficiency.

[0043] Based on the above questions, please refer to Figures 3 to 8 The embodiment of the present utility model provides a railway track guard device 10, which is applied to the railway track field, and is particularly suitable for railway turnout rail guards 20, and can effectively play a protective role.

[0044] In detail, the railway track guard rail device 10 includes a mounting plate 100 , a guard rail stay 200 , a nut 300 and a bolt 400 .

[0045] Among them, the mounting plate 100 is used to be attached to the guardrail 20; the guardrail support plate 200 is used to support the guardrail 20; the nut 300 is fixedly set on the mounting plate 100, and the bolt 400 is used to pass through the guardrail support plate 200, the guardrail 20, and the mounting plate 100 in sequence and threadedly cooperate with the nut 300; or, the head of the bolt 400 is fixedly set on the mounting plate 100, and the bolt 400 is used to pass through the mounting plate 100, the guardrail 20 and the guardrail support plate 200 in sequence and threadedly cooperate with the nut 300.

[0046] First of all, it should be noted that the guard rail 20 is arranged on the outside of the basic rail 30, so that the guard rail 20 can limit the wheels of the train and prevent the wheels from deviating or even derailing; and on complex sections such as railway switches, the guard rail 20 can also guide the wheels to pass through the track correctly, which can not only reduce the wear between the rail and the wheel and improve the stability of the vertical train operation, but also reduce the direct impact on the basic rail 30, thereby extending the service life of the track.

[0047] Therefore, in this embodiment, the mounting plate 100 is set on the side of the guardrail 20 close to the basic rail 30 so that the head of the nut 300 or the bolt 400 can be fixed by the mounting plate 100; when the nut 300 is fixedly set on the mounting plate 100, the bolt 400 is sequentially passed through the guardrail support plate 200, the guardrail 20 and the mounting plate 100, and finally threadedly engaged with the nut 300 set on the mounting plate 100; and when the head of the bolt 400 is fixedly set on the mounting plate 100, the rod of the bolt 400 is sequentially passed through the mounting plate 100, the guardrail 20 and the guardrail support plate 200, and finally threadedly engaged with the nut 300, so that the guardrail support plate 200 can be firmly installed on the guardrail 20.

[0048] The above two installation methods, since the installation pad 100 can fix the head of the nut 300 or the bolt 400, not only facilitate the electric wrench to quickly tighten the head of the bolt 400 or the nut 300 from the side of the guardrail support plate 200 to carry out mechanized operations, but also significantly improve the installation efficiency.

[0049] Furthermore, the mounting plate 100 is provided with a mounting groove 110, the bottom wall of the mounting groove 110 is provided with a first through hole 120, the rod of the bolt 400 is passed through the first through hole 120, and the head of the nut 300 or the bolt 400 is embedded in the mounting groove 110 and fixedly engaged with the mounting groove 110.

[0050] In this embodiment, a mounting groove 110 is provided on the mounting plate 100 so that the nut 300 or the bolt 400 is embedded in the mounting groove 110 to fix the nut 300 or the bolt 400, and a first through hole 120 is opened on the bottom wall of the mounting groove 110 to facilitate the rod of the bolt 400 to pass through the mounting plate 100.

[0051] Furthermore, the mounting groove 110 is provided with a plurality of first abutting walls 111 , and the plurality of first abutting walls 111 correspond one-to-one to the plurality of side walls of the head of the nut 300 or the bolt 400 .

[0052] In this embodiment, the multiple first abutting walls 111 abut against the multiple side walls of the head of the nut 300 or the bolt 400 in a one-to-one correspondence, thereby limiting the rotation of the nut 300 or the bolt 400 and limiting the nut 300 or the bolt 400.

[0053] Optionally, since hexagonal nuts 300 and hexagonal bolts 400 are commonly used, in this embodiment, the number of first abutment walls 111 is six, and the hexagonal nuts 300 and the hexagonal bolts 400 can be just embedded in the mounting grooves 110 formed by the six abutment walls, and in this state, the six first abutment walls 111 abut against the six side walls of the head of the nut 300 or the bolt 400 one by one, thereby limiting the rotation of the nut 300 or the bolt 400 and playing a limiting role on the nut 300 or the bolt 400.

[0054] Furthermore, the mounting plate 100 includes a first wall surface 130 and a second wall surface 140 . The mounting groove 110 is provided on the first wall surface 130 . The second wall surface 140 is used to fit with the guard rail 20 .

[0055] In this embodiment, the second wall surface 140 is in an arc shape. By attaching the mounting wall surface to the guard rail 20, when the knob bolt 400 or the nut 300 is rotated, the screw of the nut 300 or the bolt 400 embedded in the mounting groove 110 of the mounting plate 100 is prevented from driving the mounting plate 100 to rotate accordingly, thereby preventing the bolt 400 and the nut 300 from being tightened.

[0056] In order to further improve the stability of the mounting plate 100 , the mounting plate 100 may be connected to the guard rail 20 by welding.

[0057] Furthermore, the railway track guard rail device 10 also includes an anti-loosening cap 500, the anti-loosening cap 500 is provided with a first clamping portion 510, the guard rail support plate 200 is provided with a second through hole 211 and a second clamping portion 221, the rod of the bolt 400 is penetrated by the second through hole 211, the first clamping portion 510 and the second clamping portion 221 are clamped and matched, and the anti-loosening cap 500 is sleeved on the head of the bolt or the nut 300.

[0058] In this embodiment, a second through hole 211 is provided on the guardrail support plate 200 to facilitate the rod of the bolt 400 to pass through the guardrail support plate 200; a first clamping portion 510 is provided on the anti-loosening cap 500, a second clamping portion 221 is provided on the guardrail support plate 200, and the first clamping portion 510 and the second clamping portion 221 are clamped and matched, so that the anti-loosening cap 500 is fixedly installed on the guardrail support plate 200; in this state, the anti-loosening cap 500 can also be sleeved on the head of the bolt 400 or the outside of the nut 300 to prevent the bolt 400 and the nut 300 from rotating relative to each other, thereby effectively realizing the anti-loosening function of the nut 300 and the bolt 400, and further improving the stability of the railway switch device.

[0059] In detail, the first holding portion 510 is in a groove shape, and the second holding portion 221 is in a convex block shape.

[0060] Furthermore, the guard rail support plate 200 is further provided with a boss 222 , which is located around the second through hole 211 . The boss 222 is used to increase the distance between the head of the bolt 400 or the nut 300 and the guard rail support plate 200 .

[0061] In this embodiment, the boss 222 is provided to increase the installation height of the head of the nut 300 or the bolt 400 relative to the surface of the guardrail support plate 200 , so as to facilitate tightening the bolt 400 and the nut 300 using a wrench.

[0062] In order to further increase the installation height of the head of the nut 300 or the bolt 400 relative to the surface of the guardrail support plate 200, the railway anti-loosening device also includes a gasket 700, which is arranged at the boss 222. The gasket 700 can not only raise the height of the head of the nut 300 or the bolt 400 relative to the plane where the guardrail support plate 200 is located, but also play a role in vibration reduction and anti-loosening.

[0063] Furthermore, the guardrail support plate 200 includes a support plate body 210 and an anti-loosening base 220 , and the first clamping portion 510 and the boss 222 are both disposed on the anti-loosening base 220 .

[0064] In this embodiment, it should be noted that Figures 3 to 5 As shown, the anti-loosening base 220 and the support plate body 210 are detachably connected, or are connected by welding.

[0065] In other embodiments of the present invention, the anti-loosening base 220 and the support plate body 210 are integrally formed, which can reduce the assembly process and further improve the installation efficiency. Figure 9 and Figure 10 As shown, a second holding portion 221 can be provided on the support plate body 210, and two second mounting holes 223 of two structural forms can be provided on the second holding portion 221; further, on this basis, as shown Figure 11 and Figure 12 As shown, a boss 222 may also be provided on the support plate body 210 .

[0066] Furthermore, the bottom of the anti-loosening base 220 is provided with an avoidance portion 224 and a reinforcing rib 225. When the anti-loosening base 220 is attached to the support plate body 210 and connected by welding, there is a gap between the avoidance portion 224 and the support plate body 210 to avoid the weld generated during welding from interfering with the anti-loosening base 220 and the support plate body 210, and the reinforcing rib 225 can strengthen the structural strength of the anti-loosening base 220.

[0067] It can be understood that the anti-loosening base 220 is further provided with a third through hole 226 corresponding to the second through hole 211 for the shaft of the bolt 400 to pass through.

[0068] Furthermore, the railway track guard device 10 further includes a fastener 600 , the first holding portion 510 is provided with a first mounting hole 520 , the second holding portion 221 is provided with a second mounting hole 223 , and the fastener 600 passes through the first mounting hole 520 and the second mounting hole 223 in sequence.

[0069] In this embodiment, the fastener 600 can be a cotter pin. After the tail end of the cotter pin passes through the first mounting hole 520 and the second mounting hole 223, the tail end of the cotter pin is deformed to prevent the cotter pin from falling out of the first mounting hole 520 and the second mounting hole 223, thereby effectively preventing the anti-loosening cap 500 from separating from the guardrail support plate 200, thereby improving the installation stability of the railway anti-loosening device, so that the axial tension of the bolt 400 is stably maintained under the condition of impact vibration of the train, and preventing the nut 300 from loosening relative to the bolt 400 due to factors such as vibration after the bolt 400 and the nut 300 are tightened.

[0070] Furthermore, the anti-loosening cap 500 is provided with a plurality of second abutting walls 530 , which are sequentially connected to form a ring shape, and any two adjacent second abutting walls 530 match the head of the bolt 400 or the adjacent two side walls of the nut 300 .

[0071] In this embodiment, the second abutment wall 530 abuts against the side wall of the head of the nut 300 or the bolt 400, so that when the anti-loosening cap 500 is sleeved on the head of the nut 300 or the bolt 400, it can prevent the nut 300 or the bolt 400 from rotating, thereby preventing the nut 300 from being screwed in or out, thereby preventing the nut 300 from being loosened.

[0072] It should be noted that, in this embodiment, the nut 300 is a hexagonal nut 300, the bolt 400 is a hexagonal bolt 400, and a plurality of second abutment walls 530 are connected to form an annular serrated shape, and any two adjacent second abutment walls 530 match the head of the bolt 400 or the adjacent two side walls of the nut 300, and the number of second abutment walls 530 is greater than six.

[0073] Furthermore, the railway track guard rail device 10 further includes a railway pad 800 and a guard rail pad 900 . The railway pad 800 is used to support the stock rail 30 and the guard rail pad 900 . The guard rail support plate 200 is used to support the guard rail 20 and the guard rail support plate 200 .

[0074] like Figure 3 As shown, the railway pad 800, the guardrail pad 900 and the guardrail support plate 200 are connected; of course, in other embodiments of the present invention, such as Figure 13 As shown, the railway pad 800, the guardrail pad 900 and the guardrail support plate 200 are integrally formed, which can reduce the assembly process and further improve the installation efficiency.

[0075] In summary, the embodiment of the present invention provides a rail guard device 10 for a railway track, in which a mounting plate 100 is arranged on the side of the guardrail 20 close to the basic rail 30, so as to fix the head of the nut 300 or the bolt 400 through the mounting plate 100; when the nut 300 is fixedly arranged on the mounting plate 100, the bolt 400 is sequentially passed through the guardrail support plate 200, the guardrail 20 and the mounting plate 100, and finally threadedly engaged with the nut 300 arranged on the mounting plate 100; and when the head of the bolt 400 is fixedly arranged on the mounting plate 100, the rod of the bolt 400 is sequentially passed through the mounting plate 100, the guardrail 20 and the guardrail support plate 200, and finally threadedly engaged with the nut 300, so that the guardrail support plate 200 can be firmly installed on the guardrail 20. The above two installation methods, since the installation pad 100 can fix the head of the nut 300 or the bolt 400, not only facilitate the electric wrench to quickly tighten the head of the bolt 400 or the nut 300 from the side of the guardrail support plate 200 to carry out mechanized operations, but also significantly improve the installation efficiency.

[0076] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A rail guard device for railway track, characterized in that: include: A mounting plate, the mounting plate being used to be attached to the guardrail; A guard rail support plate, the guard rail support plate is used to support the guard rail; A nut and a bolt, wherein the nut is fixedly arranged on the mounting plate, and the bolt is used to sequentially penetrate the guardrail support plate, the guardrail, and the mounting plate and cooperate with the nut thread; or, the head of the bolt is fixedly arranged on the mounting plate, and the bolt is used to sequentially penetrate the mounting plate, the guardrail and the guardrail support plate and cooperate with the nut thread.

2. The rail guard device for railway track according to claim 1, characterized in that: The mounting plate is provided with a mounting groove, the bottom wall of the mounting groove is provided with a first through hole, the rod of the bolt is passed through the first through hole, and the head of the nut or the bolt is embedded in the mounting groove and fixedly matched with the mounting groove.

3. The rail guard device for railway track according to claim 2, characterized in that: The mounting groove is provided with a plurality of first abutting walls, and the plurality of first abutting walls correspond one-to-one to the plurality of side walls of the head of the nut or the bolt.

4. The rail guard device for railway track according to claim 2, characterized in that: The mounting plate includes a first wall surface and a second wall surface. The mounting groove is provided on the first wall surface, and the second wall surface is used for being attached to the guard rail.

5. The rail guard device for railway track according to claim 1, characterized in that: The rail guard device for railway tracks also includes an anti-loosening cap, which is provided with a first clamping portion, and the rail guard support plate is provided with a second through hole and a second clamping portion. The rod of the bolt is passed through the second through hole, and the first clamping portion and the second clamping portion are clamped and matched. The anti-loosening cap is sleeved on the head of the bolt or the nut.

6. The rail guard device for railway track according to claim 5, characterized in that: The guard rail support plate is further provided with a boss, which is located on the peripheral side of the second through hole. The boss is used to increase the distance between the head of the bolt or the nut and the guard rail support plate.

7. The rail guard device for railway track according to claim 6, characterized in that: The guardrail support plate includes a support plate body and an anti-loosening base, and the first clamping portion and the boss are both arranged on the anti-loosening base; the anti-loosening base is detachably connected to the support plate body, or the anti-loosening base is integrally formed with the support plate body.

8. The rail guard device for railway track according to claim 5, characterized in that: The rail guard device for railway track further includes a fastener, the first holding portion is provided with a first mounting hole, the second holding portion is provided with a second mounting hole, and the fastener passes through the first mounting hole and the second mounting hole in sequence.

9. The rail guard device for railway track according to claim 5, characterized in that: The anti-loosening cap is provided with a plurality of second abutting walls, and the plurality of second abutting walls are sequentially connected to form a ring shape, and any two adjacent second abutting walls match the adjacent two side walls of the bolt head or the nut.

10. The rail guard device for railway track according to claim 1, characterized in that: The railway track guard rail device further comprises a railway pad and a guard rail pad, wherein the railway pad is used to carry the stock rail and the guard rail pad, and the guard rail support plate is used to carry the guard rail and the guard rail support plate; The railway pad, the guardrail pad and the guardrail support plate are connected, or the railway pad, the guardrail pad and the guardrail support plate are integrally formed.

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