Guardrail device for railway track

Abstract

The invention 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 present invention relates to the technical field of track structures, and in particular to a rail guard device for railway tracks. Background Art

[0002] During the service of railway turnouts, the guardrails are usually worn due to the impact of trains on the tracks, and the mounting bolts of the guardrails become loose due to dynamic impact vibration, resulting in changes in the track laying state and the wheel flange groove size of the guardrails. If not maintained and adjusted in time, it is very easy to cause traffic safety accidents. Therefore, the guardrail edge groove size must be regularly tested, and the guardrail structure must be disassembled to adjust and maintain it to meet standard requirements. In sections with frequent traffic, the guardrails are frequently impacted by wheels, resulting in rapid wear of the guardrails, so the guardrail structure needs to be frequently disassembled and assembled.

[0003] However, currently, bolts and nuts are usually used to fix the guardrail against the structure of the guardrail 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. Summary of the invention

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

[0005] The embodiments of the present invention 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 pad, the mounting pad being used to be attached to the guardrail;

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

[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 pad 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 penetrated through the first through hole, and the nut or the head of the bolt is embedded in the mounting groove and fixedly matched 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 a 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 also includes an anti-loosening cap, which 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 matched, 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, the boss is located on the peripheral side of the second through hole, and the boss 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 clamping portion is provided with a first mounting hole, the second clamping 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 rail guard device for railway track further comprises a railway pad and a guard rail pad, the railway pad is used to carry the base 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;

[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 embodiments of the present invention include: setting the mounting plate on the side of the guardrail close to the base rail so as to fix the head of the nut or bolt through the mounting plate; when the nut is fixedly set on the mounting plate, the bolt is sequentially passed through the guardrail support plate, the guardrail and the mounting plate, and finally cooperates with the nut thread set on the mounting plate; and when the head of the bolt is fixedly set on the mounting plate, the rod of the bolt is sequentially passed through the mounting plate, the guardrail and the guardrail support plate, and finally cooperates with the nut thread, so that the guardrail support plate can be stably installed on the guardrail. 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 guardrail support plate, so as to carry 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 drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the first-view structure of an existing track provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the second viewing angle structure of an existing track provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the installation structure of a rail guard device for a railway track provided by an embodiment of the present invention;

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

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

[0027] Figure 6 A schematic diagram of the structure of the mounting pad provided in an embodiment of the present invention;

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

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

[0030] Fig. 9 A schematic structural diagram of a first embodiment of a support plate body provided by an embodiment of the present invention;

[0031] Fig.10 A schematic structural diagram of a second embodiment of a support plate body provided by an embodiment of the present invention;

[0032] Fig.11 A schematic structural diagram of a third embodiment of a support plate body provided by an embodiment of the present invention;

[0033] Fig.12 A schematic structural diagram of a fourth embodiment of a support plate body provided by an embodiment of the present invention;

[0034] Fig.13 A schematic diagram of the partial structure of a rail guard device for railway track provided in an embodiment of the present invention.

[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; 140-second wall; 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 pad; 20-guard rail; 30-basic rail. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are 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, further definition and explanation thereof is not required 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 to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing 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, be constructed and operated in a specific orientation, and therefore 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 between the descriptions 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 may be combined with each other.

[0042] After a railway turnout has been used for a certain period of time, 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 turn with a wrench, 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 invention provides a rail guard device 10 for railway tracks, which is applied in the field of railway tracks, and is particularly suitable for a railway turnout rail guard 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 to 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 car 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 matched 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 body of the bolt 400 is sequentially passed through the mounting plate 100, the guardrail 20 and the guardrail support plate 200, and finally threadedly matched 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 is it convenient for 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 improves the installation efficiency.

[0049] Furthermore, the mounting pad 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 penetrated by 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 matched 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 into 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 shaft 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 a plurality of side walls of the head of the nut 300 or the bolt 400 .

[0052] In this embodiment, the plurality of first abutting walls 111 abut against the plurality of 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 generally used, the number of first abutment walls 111 in this embodiment is six, and the hexagonal nuts 300 and the hexagonal bolts 400 can be just embedded in the installation 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 heads 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 pad 100 includes a first wall surface 130 and a second wall surface 140 , the mounting groove 110 is disposed on the first wall surface 130 , and the second wall surface 140 is used to fit with the guardrail 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 turned, 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, 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 guardrail 20 by welding.

[0057] Furthermore, the rail guard device 10 for railway track also includes an anti-loosening cap 500, which is provided with a first clamping portion 510, and the rail guard 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 shaft 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 clamping portion 510 is in a groove shape, and the second clamping portion 221 is in a convex block shape.

[0060] Furthermore, the guardrail support plate 200 is further provided with a boss 222 , which is located around the second through hole 211 , and is used to increase the distance between the head of the bolt 400 or the nut 300 and the guardrail 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 on 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 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. Fig. 9 and Fig.10 As shown, a second clamping 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 clamping portion 221; further, on this basis, as Fig.11 and Fig.12 As shown, a boss 222 may also be provided on the support plate body 210 .

[0066] Furthermore, an avoidance portion 224 and a reinforcing rib 225 are provided at the bottom of the anti-loosening base 220. 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 also 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 rail guard device 10 for railway track further comprises a fastener 600 , the first clamping portion 510 is provided with a first mounting hole 520 , the second clamping 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 detaching 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 with 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, the nut 300 or the bolt 400 can be prevented 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 adjacent two side walls of the bolt 400 head or the nut 300, and the number of the second abutment walls 530 is greater than six.

[0073] Furthermore, the rail guard device 10 for railway track further includes a railway pad 800 and a guard rail pad 900 , the railway pad 800 is used to carry the base rail 30 and the guard rail pad 900 , and the guard rail support plate 200 is used to carry 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 Fig.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, an embodiment of the present invention provides a rail guard device 10 for a railway track, in which a mounting plate 100 is arranged on a side of the guardrail 20 close to the basic rail 30, so as to fix the head of a nut 300 or a 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 body 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 is it convenient for 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 improves the installation efficiency.

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

Claims

1. A rail guard device for railway track, characterized in that: include: A mounting pad, the mounting pad being used to be attached to the guardrail; A guardrail support plate, the guardrail support plate is used to support the guardrail; 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 pad 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 penetrated by the first through hole, and the nut or the head of 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 installation groove is provided with a plurality of first abutment walls, and the plurality of first abutment walls correspond one-to-one to a 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 pad includes a first wall surface and a second wall surface, the mounting groove is arranged on the first wall surface, and the second wall surface is used to be 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 track 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 penetrated by the second through hole, the first clamping portion and the second clamping portion are clamped and matched, and 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 and 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 comprises a support plate body and an anti-loosening base, wherein 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 also includes a fastener, the first clamping portion is provided with a first mounting hole, the second clamping 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 abutment walls, and the plurality of second abutment walls are sequentially connected to form a ring shape, and any two adjacent second abutment walls match with 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 rail guard device for railway track further comprises a railway pad and a rail guard pad, wherein the railway pad is used to carry the base rail and the rail guard pad, and the rail guard support plate is used to carry the rail guard and the rail guard 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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