Insulation protection plate for track vibration reduction fastener and track vibration reduction fastener

Abstract

The utility model discloses an insulating protective plate for a rail vibration damping fastener and the rail vibration damping fastener, and relates to the technical field of rail traffic stray current prevention and control, the insulating protective plate comprises a fastener body, and the fastener body comprises a lower iron base plate and an upper iron base plate; the lower iron base plate is provided with a cavity, and the bottom of the upper iron base plate is provided with a convex part corresponding to the cavity; and the insulating protective plate is arranged on the upper surface of the lower iron base plate in a wrapping manner and extends to the side wall of the cavity. The insulating protective plate can effectively insulate and isolate the lower iron base plate and the upper iron base plate, seal a gap between the lower iron base plate and the upper iron base plate, prevent pollutants such as oil stains, scrap iron and dust from entering the gap, and effectively prevent current leakage of a rail to the ground from being increased due to current conduction on the surfaces of the lower iron base plate and the upper iron base plate. The insulation performance of the fastener is improved, and the use stability, the safety and the service life of ballast bed concrete structure steel bars, metal pipelines and electrical equipment along a track are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stray current prevention and control in rail transit, and particularly relates to an insulating guard plate for a track vibration damping fastener and a track vibration damping fastener. Background Technique

[0002] The rapid development of rail transit has provided convenience for people and effectively alleviated the pressure of urban traffic. However, at the same time, problems such as vibration and noise pollution generated during the operation of rail transit have always affected the lives of residents around the railway and the comfort of passengers. Therefore, railway vibration reduction and noise reduction have received increasing attention, and track vibration damping fasteners have emerged as the times require and have gradually been widely used in urban rail transit.

[0003] In related technologies, common vibration damping fasteners include shoulder-type vibration damping fasteners and double-layer non-linear vibration damping fasteners, both of which can effectively enhance the vibration damping effect of rail transit. However, only rubber pads are used to isolate the upper iron pad and the lower iron pad in both the shoulder-type vibration damping fasteners and the double-layer non-linear vibration damping fasteners. After long-term use and wear, gaps will be generated between the upper and lower iron pads, making it easy for pollutants such as iron filings, oil stains, and dust to enter the gaps, resulting in the conduction of surface current and an increase in the current leakage from the rail to the ground, thereby causing secondary hazards of stray current, affecting the corrosion of the steel bars of the ballast concrete structure, metal pipelines, electrical equipment along the track, etc., and being unable to guarantee their service performance and service life, increasing the possibility of safety accidents. In addition, the installation height of the double-layer non-linear vibration damping fastener cannot match the height of the ordinary fastener, and the installation position of the anchor bolt is too high, which is prone to shear fracture. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an insulating guard plate for a track vibration damping fastener and a track vibration damping fastener to solve at least one aspect of the problems and defects mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] An insulating guard plate for a track vibration damping fastener and a track vibration damping fastener, comprising:

[0007] A fastener body, which includes a lower iron pad, an upper iron pad, and an insulating guard plate;

[0008] The insulating guard plate is wrapped around the upper surface of the lower iron pad.

[0009] According to the insulating guard plate for a track vibration damping fastener and the track vibration damping fastener of this solution, it has at least the following technical effects:

[0010] The insulating guard plate for the track vibration damping fastener and the track vibration damping fastener can effectively insulate and isolate the lower iron backing plate and the upper iron backing plate by arranging the insulating guard plate on the upper surface of the lower iron backing plate. Compared with the traditional fastener that only isolates the upper and lower iron backing plates by means of a rubber backing plate, the vibration damping fastener of the present utility model can effectively seal the gap between the lower iron backing plate and the upper iron backing plate, preventing pollutants such as oil stains, iron filings, and dust from entering the gap. Its beneficial effects are as follows: First, it effectively prevents the surface current conduction between the lower iron backing plate and the upper iron backing plate, increasing the current leakage from the rail to the ground, thereby causing secondary hazards of stray current, improving the insulation performance of the fastener, and ensuring the use stability, safety, and service life of the reinforced bars of the ballast concrete structure, metal pipelines, and electrical equipment along the track; Second, it can prevent the stiffness failure of the elastic backing plate under the plate due to impurities entering the gap; Third, it can improve the working environment of the elastic backing plate under the plate and extend its service life.

[0011] As a further scheme of the present utility model: the lower iron backing plate is provided with a cavity.

[0012] By arranging a cavity in the lower iron backing plate, it can be used to install the elastic backing plate under the plate, which can better provide elastic vibration damping and insulation functions, effectively absorb and isolate the vibration in the track system, and improve the overall vibration damping effect of the fastener.

[0013] As a further scheme of the present utility model: a convex portion is provided at the bottom of the upper iron backing plate corresponding to the size of the cavity, and the insulating guard plate extends to the side wall of the cavity.

[0014] Since a convex portion is provided at the bottom of the upper iron backing plate corresponding to the size of the cavity, the convex portion of the upper iron backing plate is pressed directly above the elastic backing plate under the plate, which can effectively reduce the overall installation height of the fastener, ensure that the installation height of this fastener is the same as that of the ordinary fastener, and facilitate the smooth transition and upgrade replacement of this vibration damping fastener and the ordinary fastener; and compared with the traditional double-layer non-linear vibration damping fastener, the length of the anchor bolt can be effectively reduced, reducing the risk of bolt shear fracture; at the same time, the insulating guard plate extends to the side wall of the cavity, which can prevent the convex portion of the upper iron backing plate from directly contacting the side wall of the cavity of the lower iron backing plate, avoiding the leakage of stray current, improving the safety of the track system, and reducing the risk of secondary hazards caused by the leakage of stray current.

[0015] As a further scheme of the present utility model: the outer edge of the insulating guard plate wraps around the outer contour of the upper iron backing plate, and an eaves is provided at the upper part.

[0016] Since the outer edge of the insulating guard plate wraps around the outer contour of the upper iron pad, and an eaves is provided on the upper part, the eaves can widen the outer edge width of the insulating guard plate, and can effectively close the gap between the lower iron pad and the upper iron pad, preventing iron filings, oil stains, dust and other pollution from entering the fastener, causing current conduction on the surface of the upper and lower iron pads and increasing the current leakage from the rail to the ground, further improving the insulation effect and insulation capacity between the upper and lower iron pads; secondly, it can avoid the failure of the stiffness of the elastic pad under the plate due to impurities entering the gap; thirdly, it can improve the working environment of the elastic pad under the spring plate and increase its service life.

[0017] As a further solution of the present invention: a locking mechanism is provided on the lower iron pad, and through holes are provided on the upper iron pad corresponding to the locking mechanism.

[0018] As a further solution of the present invention: a locking ring is rotatably provided on the outer periphery of the locking mechanism, and the bottom of the locking ring abuts against the top of the insulating protective plate.

[0019] Since the lower iron pad is provided with a locking mechanism, the upper iron pad and the locking mechanism are provided with through holes correspondingly, a locking ring is rotatably provided on the outer periphery of the locking mechanism, and the bottom of the locking ring abuts against the top of the insulating guard plate, so that the lower iron pad, the insulating guard plate and the upper iron pad are all locked, effectively and firmly locking the insulating guard plate between the lower iron pad and the upper iron pad, preventing the current from being conducted on the surface of the lower iron pad and the upper iron pad and increasing the current leakage from the rail to the ground, thereby improving the insulation stability and effect of the vibration-damping fastener, and ensuring the stability, safety and service life of the roadbed concrete structure steel bars, metal pipes and electrical equipment along the track.

[0020] As a further solution of the present invention: the locking mechanism includes a locking column and a serrated cover plate, the top of the locking column is provided with a first tooth, and the two sides of the top of the locking column are respectively provided with a first locking groove.

[0021] As a further solution of the present invention: second locking grooves are respectively provided on both sides of the top of the locking ring.

[0022] As a further solution of the present invention: the bottom of the serrated cover plate is provided with second teeth meshing with the first teeth, and locking strips are respectively provided on both sides of the bottom of the serrated cover plate.

[0023] When the entire vibration damping fastener needs to be locked, rotate the locking ring and rotate the second locking groove at the top of the locking ring to communicate with the first locking groove at the top of the locking column. Then cover the serrated cover plate on the top of the locking column and the locking ring, so that the second serrations at the bottom of the serrated cover plate mesh with the first serrations at the top of the locking column, and at the same time, the locking strips at the bottom of the serrated cover plate are respectively engaged in the first locking groove and the second locking groove. Through the cooperation and locking of the locking mechanism and the locking ring, the lower iron backing plate, the insulating guard plate and the upper iron backing plate can be effectively locked, improving the overall structural strength and stability of the fastener. At the same time, it is convenient for the installation and disassembly of the fastener, improving the maintenance and repair efficiency.

[0024] As a further scheme of the present invention: a convex ring is provided on the outer circumference of the locking ring.

[0025] Since a convex ring is provided on the outer circumference of the locking ring, the convex ring can increase the outer circumference width of the locking ring, which helps to increase the creepage distance between the locking mechanism of the lower iron backing plate and the upper iron backing plate, further preventing secondary hazards caused by stray current and improving the insulation effect of the fastener.

[0026] As a further scheme of the present invention: the insulating guard plate is made of rubber and plastic polyurethane insulating material, preferably glass fiber reinforced nylon 66.

[0027] Since the insulating guard plate is made of rubber and plastic polyurethane insulating material, preferably glass fiber reinforced nylon 66, it has good electrical insulation performance and mechanical strength, which can effectively prevent the surface current conduction between the lower iron backing plate and the upper iron backing plate and increase the current leakage between the rail and the ground, effectively improving the insulation and durability of the fastener, thus ensuring the use stability and reliability of the fastener and avoiding safety accidents caused by current leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic structural diagram of the lower iron backing plate of a track vibration damping fastener;

[0030] Figure 2 It is a schematic structural diagram of the upper iron backing plate of a track vibration damping fastener;

[0031] Figure 3 It is a schematic structural diagram of the lower iron backing plate of the first embodiment of a track vibration damping fastener assembled with an insulating guard plate and a locking ring;

[0032] Figure 4 It is a schematic structural diagram of the lower iron backing plate of a track vibration damping fastener provided with a cavity;

[0033] Figure 5 It is a schematic structural diagram of the upper iron backing plate of a track vibration damping fastener provided with a convex part;

[0034] Figure 6 Schematic diagram of the structure of assembling the insulating guard plate and the locking ring on the lower tie plate under the second embodiment of a track vibration damping fastener;

[0035] Figure 7 Schematic diagram of the structure of the serrated cover plate of a track vibration damping fastener;

[0036] Figure 8 Schematic diagram of the structure of a locking mechanism of a track vibration damping fastener after assembly;

[0037] Figure 9 For Figure 8 Partial enlarged view at B of

[0038] Figure 10 For Figure 8 Partial enlarged view at A of

[0039] Figure 11 Schematic diagram of the overall structure of a track vibration damping fastener.

[0040] Reference numerals:

[0041] 1. Lower tie plate; 11. Cavity; 12. Locking mechanism; 121. Locking column; 1211. First tooth; 1212. First locking groove; 122. Serrated cover plate; 1221. Second tooth; 1222. Locking strip; 2. Upper tie plate; 21. Convex part; 22. Through hole; 3. Insulating guard plate; 31. Eave edge; 4. Locking ring; 41. Second locking groove; 42. Convex ring. Detailed implementation manners

[0042] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship involved in the orientation description, such as up, down, front, back, left, right, etc., is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0044] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0045] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0046] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0047] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings below is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0048] As Figures 1-11 shown in the embodiments of the present utility model, an insulating guard plate for a track vibration damping fastener and a track vibration damping fastener include: a fastener body, the fastener body includes a lower iron backing plate 1, an upper iron backing plate 2 and an insulating guard plate 3, and the insulating guard plate 3 is wrapped around the upper surface of the lower iron backing plate 1.

[0049] Specifically, for the insulating guard plate and the track vibration damping fastener of the present invention, by arranging the insulating guard plate 3 on the upper surface of the lower tie plate 1, the lower tie plate 1 and the upper tie plate 2 can be effectively insulated from each other. Compared with traditional fasteners that only rely on rubber pads to isolate the upper and lower tie plates, the vibration damping fastener of the present invention can effectively seal the gap generated between the lower tie plate 1 and the upper tie plate 2 due to long-term use and wear, preventing pollutants such as oil stains, iron filings, and dust from entering the gap. Its beneficial effects are as follows: First, it effectively prevents the surface current conduction between the lower tie plate 1 and the upper tie plate 2, thereby increasing the current leakage from the rail to the ground, and thus causing secondary hazards of stray current, improving the insulation performance of the fastener, and ensuring the use stability, safety, and service life of the bed concrete structure steel bars, metal pipelines, and electrical equipment along the track. Second, it can prevent the stiffness failure of the elastic pad under the plate caused by impurities entering the gap. Third, it can improve the working environment of the elastic pad under the plate and extend its service life.

[0050] As Figures 4-6 shown in the second embodiment of the present invention, the lower tie plate 1 is provided with a cavity 11.

[0051] Specifically, by providing the cavity 11 in the lower tie plate 1, it can be used to install the elastic pad under the plate, which can better provide elastic vibration damping and insulation functions, effectively absorb and isolate the vibration in the track system, and improve the overall vibration damping effect of the fastener.

[0052] Furthermore, a convex portion 21 is provided at the bottom of the upper tie plate 2 corresponding to the size of the cavity 11, and the insulating guard plate 3 extends to the side wall of the cavity 11.

[0053] Specifically, since the convex portion 21 is provided at the bottom of the upper tie plate 2 corresponding to the size of the cavity, the convex portion 21 of the upper tie plate 2 is directly above the elastic pad under the plate in the cavity 11, which can effectively reduce the overall installation height of the fastener, ensure that the installation height of this fastener is the same as that of ordinary fasteners, and facilitate the smooth transition and upgrade replacement of this vibration damping fastener with ordinary fasteners; and compared with traditional double-layer non-linear vibration damping fasteners, the length of the anchor bolt can be effectively reduced, reducing the risk of bolt shear fracture; at the same time, the insulating guard plate 3 extends to the side wall of the cavity 11, which can prevent the convex portion 21 of the upper tie plate 2 from directly contacting the side wall of the cavity 11 of the lower tie plate 1, avoiding the leakage of stray current, improving the safety of the track system, and reducing the risk of secondary hazards caused by stray current leakage.

[0054] As Figure 9 shown, the outer edge of the insulating guard plate 3 wraps around the outer contour of the upper tie plate 2, and an eaves edge 31 is provided at the upper part.

[0055] Specifically, since the outer edge of the insulating guard plate 3 wraps around the outer contour of the upper tie plate 2 and has an eaves edge 31 at the upper part, the eaves edge 31 can increase the width of the outer edge of the insulating guard plate 3, effectively closing the gap between the lower tie plate 1 and the upper tie plate 2, preventing contamination such as iron filings, oil stains, and dust from entering the fastener, causing the surface current of the upper and lower tie plates to conduct and increasing the current leakage from the rail to the ground, further improving the insulation effect and insulation ability between the upper and lower tie plates. Second, it can prevent the stiffness of the elastic pad under the plate from failing due to impurities entering the gap. Third, it can improve the working environment of the elastic pad under the plate and extend its service life.

[0056] As Figures 1-3 shown, a locking mechanism 12 is provided on the lower tie plate 1, and through holes 22 are correspondingly provided on the upper tie plate 2 and the locking mechanism 12; a locking ring 4 is rotatably provided on the outer periphery of the locking mechanism 12, and the bottom of the locking ring 4 abuts against the top of the insulating guard plate 3.

[0057] Specifically, since a locking mechanism 12 is provided on the lower tie plate 1, through holes 22 are correspondingly provided on the upper tie plate 2 and the locking mechanism 12, a locking ring 4 is rotatably provided on the outer periphery of the locking mechanism 12, and the bottom of the locking ring 4 abuts against the top of the insulating guard plate 3, the lower tie plate 1, the insulating guard plate 3, and the upper tie plate 2 are all locked, effectively locking the insulating guard plate 3 firmly between the lower tie plate 1 and the upper tie plate 2, preventing the surface current of the lower tie plate 1 and the upper tie plate 2 from conducting and increasing the current leakage from the rail to the ground, improving the insulation stability and effect of the vibration damping fastener, and ensuring the use stability, safety, and service life of the concrete structure steel bars, metal pipelines, and electrical equipment along the track of the ballast bed.

[0058] As Figure 4 、 Figure 6 and Figure 7 shown, the locking mechanism 12 includes a locking column 121 and a serrated cover plate 122. A first tooth 1211 is provided at the top of the locking column 121, and first locking grooves 1212 are respectively provided on both sides of the top of the locking column 121; second locking grooves 41 are respectively provided on both sides of the top of the locking ring 4; a second tooth 1221 meshing with the first tooth 1211 is provided at the bottom of the serrated cover plate 122, and locking strips 1222 are respectively provided on both sides of the bottom of the serrated cover plate 122.

[0059] Furthermore, the locking ring 4 is rotatably provided on the outer periphery of the locking column 121, and the top of the locking ring 4 is parallel to the top of the locking column 121.

[0060] Specifically, when the entire vibration damping fastener needs to be locked, rotate the locking ring 4, and rotate the second locking groove 41 at the top of the locking ring 4 to be connected with the first locking groove 1212 at the top of the locking column 121, and then cover the serrated cover plate 122 on the locking column 121 and the top of the locking ring 4, so that the second teeth 1221 at the bottom of the serrated cover plate 122 engage with the first teeth 1211 at the top of the locking column 121, and at the same time, make the locking strip 1222 at the bottom of the serrated cover plate 122 respectively engage in the first locking groove 1212 and the second locking groove 41; through the coordinated locking of the locking mechanism 12 and the locking ring 4, the lower iron pad 1, the insulating guard plate 3 and the upper iron pad 2 can be effectively locked, thereby improving the overall structural strength and stability of the fastener, while facilitating the installation and disassembly of the fastener, and improving maintenance and repair efficiency.

[0061] like Figure 10 As shown, a protruding ring 42 is provided on one circumference of the locking ring 4 .

[0062] Specifically, since a convex ring 42 is provided on the upper periphery of the locking ring 4, the convex ring 42 can widen the outer circumference of the locking ring 4, which helps to increase the creepage distance between the locking mechanism 12 of the lower iron pad 1 and the upper iron pad 2, further prevent secondary hazards caused by stray currents, and improve the insulation effect of the fastener.

[0063] According to an embodiment of the present invention, the insulating guard plate 3 is made of a rubber-plastic polyurethane insulating material, preferably glass fiber reinforced nylon 66.

[0064] Specifically, since the insulating guard plate 3 is made of rubber-plastic polyurethane insulating material, preferably glass fiber reinforced nylon 66, which has good electrical insulation performance and mechanical strength, it can effectively prevent the surface current of the lower iron pad 1 and the upper iron pad 2 from conducting and increasing the current leakage from the rail to the ground, effectively improving the insulation and durability of the fastener, thereby ensuring the stability and reliability of the fastener and avoiding safety accidents caused by current leakage.

[0065] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. An insulating guard plate for an orbital vibration damping fastener and an orbital vibration damping fastener, characterized in that, Comprising: A fastener body, which includes a lower iron backing plate (1), an upper iron backing plate (2), and an insulating guard plate (3); The insulating guard plate (3) is wrapped around the upper surface of the lower iron backing plate (1).

2. The insulating guard plate for the track vibration damping fastener and the track vibration damping fastener according to claim 1, characterized in that, The lower iron backing plate (1) is provided with a cavity (11).

3. The insulating guard plate for the track vibration damping fastener and the track vibration damping fastener according to claim 2, characterized in that, A convex portion (21) corresponding to the size of the cavity (11) is provided at the bottom of the upper iron backing plate (2), and the insulating guard plate (3) extends to the side wall of the cavity (11).

4. The insulating guard plate for track vibration damping fasteners and the track vibration damping fasteners according to any one of claims 1 or 3, characterized in that, The outer edge of the insulating guard plate (3) wraps around the outer contour of the upper iron backing plate (2), and an eaves edge (31) is provided at the upper part.

5. The insulating guard plate for track vibration damping fasteners and the track vibration damping fasteners according to any one of claims 1 or 3, characterized in that, A locking mechanism (12) is provided on the lower iron backing plate (1), and through holes (22) corresponding to the locking mechanism (12) are provided on the upper iron backing plate (2).

6. The insulating guard plate for the track vibration damping fastener and the track vibration damping fastener according to claim 5, characterized in that, A locking ring (4) is rotatably provided on the outer periphery of the locking mechanism (12), and the bottom of the locking ring (4) abuts against the top of the insulating guard plate (3).

7. The insulating guard plate for a track vibration damping fastener and the track vibration damping fastener according to claim 6, characterized in that, The locking mechanism (12) includes a locking post (121) and a serrated cover plate (122). A first tooth (1211) is provided at the top of the locking post (121), and first locking grooves (1212) are respectively provided on both sides of the top of the locking post (121).

8. The insulating guard plate for a track vibration damping fastener and the track vibration damping fastener according to claim 7, characterized in that, Second locking grooves (41) are respectively provided on both sides of the top of the locking ring (4).

9. The insulating guard plate for the track vibration damping fastener and the track vibration damping fastener according to claim 8, characterized in that, A second tooth (1221) meshing with the first tooth (1211) is provided at the bottom of the serrated cover plate (122), and locking strips (1222) are respectively provided on both sides of the bottom of the serrated cover plate (122).

10. The insulating guard plate for track vibration damping fasteners and the track vibration damping fasteners according to claim 6, characterized in that, A convex ring (42) is provided on the locking ring (4).

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