Side-mounted Insulated Rail Fastener

Abstract

The present invention relates to a side-mounted insulated rail fastener, belonging to the field of railway construction. It includes a base, with a number of counterbores respectively arranged on both sides of the base. Bow-shaped fasteners are respectively arranged on both sides of the base. The bow-shaped fasteners are in the shape of angle irons, with fastening through-holes arranged on their transverse parts. A fastening nut is coaxially fixed on the fastening through-hole, and a fastening bolt is fitted inside the fastening nut. The fastening bolt passes through the fastening through-hole and is fitted with the counterbore. A pin column is vertically fixed on the inner wall of its longitudinal part, and the pin column is fitted with the pin hole on the side hanging plate of the sleeper beam. The fastening bolt is perpendicular to the steel sleeper surface. When fastening, it is not restricted by the operating space, greatly shortening the fastening time and improving the construction efficiency. The rail is tightly fixed by a buckle plate, and the degree of tightness can be adjusted. It has good rigidity and ensures the insulation effect.

Description

Technical Field

[0001] The present invention relates to a side-hung insulated rail fastener, belonging to the field of railway construction. Background Art

[0002] Railway rail fasteners are parts used to connect rails and sleepers (or other types of sub-rail foundations) on the track, also known as intermediate connecting parts. Their function is to fix the rails on the sleepers, maintain the gauge, and prevent the longitudinal and lateral movement of the rails relative to the sleepers.

[0003] Existing fasteners are fixed with 4 Φ16 bolts on both sides of the sleeper beam. Since the gap between the sleeper beam and the concrete sleeper is only 6 - 8 cm, it is inconvenient to insert and fix the bolts. Moreover, due to the too small operating space, there is no space for electric tools, resulting in a slow speed of tightening the screws. Currently, construction is carried out within the blocked points, and it is very difficult to complete within the points, affecting the construction progress; the insulation of the original fasteners is achieved by nylon shoulder pads, and the nylon shoulder pads are easily broken after being stressed, extremely likely to cause electrical connection. Summary of the Invention

[0004] According to the above deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide a side-hung insulated rail fastener, where the fastening bolts are perpendicular to the steel sleeper surface, the fastening is not restricted by the operating space, greatly shortening the fastening time, improving the construction efficiency, squeezing and fixing the rails through the buckle plate, the squeezing degree is adjustable, and it has good rigidity to ensure the insulation effect.

[0005] The side-hung insulated rail fastener described in the present invention includes a base. A number of counterbores are respectively arranged on both sides of the base. Bow-shaped fasteners are respectively arranged on both sides of the base. The bow-shaped fasteners are in the shape of angle irons. A fastening through-hole is arranged on its horizontal part, and a fastening nut is coaxially fixed on the fastening through-hole. A fastening bolt is fitted in the fastening nut. After passing through the fastening through-hole, the fastening bolt is fitted with the counterbore. A pin column is vertically fixed on the inner wall of its vertical part, and the pin column is fitted with a pin hole on the side hanging plate of the sleeper beam;

[0006] A screw spike is vertically fixed on the base. The screw spike is in the shape of a screw rod. A buckle plate is arranged on the screw spike. A strip-shaped buckle plate through-hole is arranged on the buckle plate. The screw spike is inserted into the buckle plate through-hole. A compression nut is arranged on the buckle plate. The compression nut is fitted on the screw spike. The inner end of the buckle plate presses on the rail base of the rail.

[0007] Working Principle and Process:

[0008] During installation, place the base on the bolster. Insert the pin posts on the two bow-shaped fasteners into the pin holes on the side hanging plates of the bolster. Then, screw the fastening bolts into the fastening nuts until the fastening bolts reach the bottom of the counterbore on the base, firmly fixing the base on the bolster. The two bow-shaped fasteners can prevent the base from moving left and right, and the two pin posts can prevent the base from being lifted. Then, tighten the nuts to press the inner end of the buckle plate tightly against the bottom of the rail. This application adopts a side-hanging fixing method, where the fastening bolts are perpendicular to the bolster surface. Compared with the traditional side fastening method (the original fastener base and the bow-shaped fastener were integrated, with through holes provided at the position of the pin posts, and the fastening bolts passed through the through holes and were tightly connected to the scraper. In this way, only operations could be carried out on the side of the bolster, and the operating space between the bolster and the concrete sleeper was only 6 - 8 cm, which was very inconvenient), this application is designed as a split type. It is not only convenient during installation, but also transfers the operating space from the gap between the bolster and the concrete sleeper to above the bolster. The operating space is no longer restricted, greatly shortening the fastening time and making the operation more convenient.

[0009] An arc-shaped notch is provided at the lower edge of the inner end of the buckle plate, and the notch is matched with the bottom of the rail. In this way, the buckle plate and the bottom of the rail are more firmly matched.

[0010] A vertical standing plate is fixedly installed at the outer end of the base. A jacking through hole is provided on the standing plate, and a jacking nut is coaxially fixed on the jacking through hole. A jacking bolt is fitted inside the jacking nut, and the working end of the jacking bolt is matched with the outer end of the buckle plate. By screwing in the jacking bolt, the buckle plate can be jacked inward, and thus the matching degree between the buckle plate and the bottom of the rail can be controlled.

[0011] There are two pin posts on each bow-shaped fastener, and the distance between the two pin posts is a multiple of the distance between the pin holes on the hanging plate. In this way, the bow-shaped fastener can be effectively prevented from rotating around the pin posts.

[0012] A notch is provided on the upper surface of the pin post. The notch does not extend to the inner end of the pin post. The length of the notch is greater than the thickness of the hanging plate, and transverse rows of teeth are provided on the surface of the notch. The force received by the base is vertically upward. After the pin post is inserted into the pin hole, the hanging plate is fitted into the notch, and the notch hooks the scraper. At the same time, the rows of teeth increase the friction force, further ensuring the firm connection between the bow-shaped fastener and the bolster.

[0013] A number of counterbores on each side of the base are arranged at equal intervals. There are two fastening through holes on the bow-shaped fastener, and the distance between the two fastening through holes is a multiple of the distance between the counterbores on the corresponding side. Each bow-shaped fastener is tightly connected to the base through two fastening bolts. In this way, the bow-shaped fastener can be prevented from rotating around the fastening bolts, improving the firmness.

[0014] It includes a wavy elastic sheet. Elastic through holes are provided on the elastic sheet. The elastic sheet is pressed on the buckle plate, and the elastic through holes on the elastic sheet are sleeved on the spiral spikes. The elastic sheet is pressed tightly by a pressing nut. The elastic sheet provides buffering for the vibration and deformation of the rail, avoiding damage to the fastener due to stress generation.

[0015] A washer is provided between the compression nut and the elastic sheet. The washer prevents the nut from spinning.

[0016] Two limiting plates are vertically fixed on the base, and the two limiting plates are respectively close to both sides of the buckle plate. The limiting plates play a limiting role to prevent the buckle plate from rotating and shifting.

[0017] The buckle plate is made of PAI polyamide-imide material, which has good insulation performance and rigidity.

[0018] A limiting ring is fixed at the lower part of the screw spike. The limiting ring restricts the height of the buckle plate.

[0019] The beneficial effects of the present invention compared with the prior art are as follows:

[0020] For the side-mounted insulating rail fastener of the present invention, the present application adopts a side-mounted fixing method, and the fastening bolt is perpendicular to the sleeper beam surface. Compared with the traditional side fastening method, the present application is designed as a split type, which is not only convenient for installation, but also transfers the operation space from the gap between the sleeper beam and the concrete sleeper to above the sleeper beam. The operation space is no longer restricted, greatly shortening the construction period and making the operation more convenient. The adjustment modulus in the front and back of the buckle plate is shortened to 2.5 cm, so that the fit between the fastener and the rail reaches the best state. The consumption of materials is reduced. The M16 fastening bolt and nylon shoulder of the original rail fastener are consumable materials and need to be replenished in large quantities after each work point is completed. There is no loss and no need for replenishment after using the rail fastener of the present application. The fastening bolt is perpendicular to the concrete sleeper surface, and there is no restriction on the operation space during fastening, greatly shortening the construction period and improving the construction efficiency. The rail is tightly fixed by the buckle plate, and the tightening degree is adjustable, with good rigidity and ensuring the insulation effect. Description of the Drawings

[0021] Figure 1 is a schematic diagram of an embodiment of the present invention;

[0022] Figure 2 is Figure 1 an enlarged structural view of the fastener of the shown embodiment;

[0023] Figure 3 is Figure 2 an exploded view of the shown embodiment.

[0024] In the figure: 1, sleeper beam; 2, rail; 3, fastener; 4, jacking bolt; 5, vertical plate; 6, jacking nut; 7, fastening bolt; 8, fastening nut; 9, screw spike; 10, compression nut; 11, elastic sheet; 12, buckle plate; 13, hanging plate; 14, pin hole; 15, bow-shaped fastener; 16, washer; 17, elastic through hole; 18, through hole of the buckle plate; 19, jacking through hole; 20, pin; 21, base; 22, limiting plate; 23, limiting ring; 24, counterbore. Detailed Embodiments

[0025] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0026] As Figures 1 - 3 shown, the side-mounted insulated rail fastener of the present invention includes a base 21. A number of counterbores 24 are respectively provided on both sides of the base 21. Bow-shaped fasteners 15 are respectively provided on both sides of the base 21. The bow-shaped fasteners 15 are in the shape of angle irons. A fastening through-hole is provided on its horizontal part. A fastening nut 8 is coaxially fixed on the fastening through-hole. A fastening bolt 7 is fitted inside the fastening nut 8. The fastening bolt 7 passes through the fastening through-hole and cooperates with the counterbore 24. A pin column 20 is vertically fixed on the inner wall of its vertical part. The pin column 20 cooperates with the pin hole 14 on the side hanging plate 13 of the sleeper beam 1;

[0027] A screw spike 9 is vertically fixed on the base 21. The screw spike 9 is in the shape of a screw rod. A retaining plate 12 is provided on the screw spike 9. A strip-shaped retaining plate through-hole 18 is provided on the retaining plate 12. The screw spike 9 is inserted into the retaining plate through-hole 18. A compression nut 10 is provided on the retaining plate 12. The compression nut 10 is fitted on the screw spike 9. The inner end of the retaining plate 12 presses on the rail bottom of the rail 2.

[0028] Working principle and process:

[0029] During installation, the base 21 is placed on the sleeper beam 1. The pin columns 20 on the two bow-shaped fasteners 15 are inserted into the pin holes 14 on the side hanging plate 13 of the sleeper beam 1. Then, the fastening bolt 7 is screwed into the fastening nut 8 until the fastening bolt 7 touches the counterbore 24 on the bottom of the base 21, firmly fixing the base 21 on the sleeper beam 1. The two bow-shaped fasteners 15 can prevent the base 21 from moving left and right, and the two pin columns 20 can prevent the base 21 from being lifted. Then, the nut is tightened to press the inner end of the retaining plate 12 against the rail bottom of the rail 2. The present application adopts a side-mounted fixing method. The fastening bolt 7 is perpendicular to the surface of the sleeper beam 1. Compared with the traditional side fastening method (the original fastener 3 base 21 and the bow-shaped fastener 15 were integrated, a through-hole was provided at the position of the pin column 20, and the fastening bolt 7 passed through the through-hole and was fixedly connected to the scraper. In this way, only operations could be carried out on the side of the sleeper beam 1, and the operating space between the sleeper beam 1 and the concrete sleeper was only 6 - 8 cm, which was very inconvenient), the present application is designed to be a split type. It is not only convenient for installation, but also transfers the operating space from the gap between the sleeper beam 1 and the concrete sleeper to above the sleeper beam 1. The operating space is no longer restricted, greatly shortening the construction period and making the operation more convenient.

[0030] An arc-shaped notch is provided at the lower edge of the inner end of the retaining plate 12. The notch cooperates with the rail bottom. In this way, the cooperation between the retaining plate 12 and the rail bottom is more firm.

[0031] A vertical plate 5 is fixedly installed at the outer end of the base 21. A jacking through-hole 19 is provided on the vertical plate 5. A jacking nut 6 is coaxially fixed on the jacking through-hole 19. A jacking bolt 4 is fitted inside the jacking nut 6. The working end of the jacking bolt 4 is fitted with the outer end of the buckle plate 12. By screwing in the jacking bolt 4, the buckle plate 12 can be jacked inward, thereby controlling the matching degree between the buckle plate 12 and the rail bottom.

[0032] There are two pin posts 20 on each bow-shaped fastener 15, and the distance between the two pin posts 20 is a multiple of the distance between the pin holes 14 on the hanging plate 13. This can effectively prevent the bow-shaped fastener 15 from rotating around the pin post 20.

[0033] A notch is provided on the upper surface of the pin post 20, and the notch does not extend to the inner end of the pin post 20. The length of the notch is greater than the thickness of the hanging plate 13. Transverse teeth are provided on the surface of the notch. The force received by the base 21 is vertically upward. After the pin post 20 is inserted into the pin hole 14, the hanging plate 13 is fitted into the notch, and the notch hooks the scraper. At the same time, the teeth increase the friction force, further ensuring the firm connection between the bow-shaped fastener 15 and the sleeper beam 1.

[0034] A number of counterbores 24 on each side of the base 21 are arranged at equal intervals. There are two fastening through-holes on the bow-shaped fastener 15, and the distance between the two fastening through-holes is a multiple of the distance between the corresponding counterbores 24 on the same side. Each bow-shaped fastener 15 is fixedly connected to the base 21 through two fastening bolts 7. This can prevent the bow-shaped fastener 15 from rotating around the fastening bolt 7 and improve the firmness.

[0035] It includes a wavy elastic sheet 11. An elastic through-hole 17 is provided on the elastic sheet 11. The elastic sheet 11 is pressed on the buckle plate 12. The elastic through-hole 17 on the elastic sheet 11 is sleeved on the screw spike 9. The elastic sheet 11 is pressed by a compression nut 10. The elastic sheet 11 provides buffering for the vibration and deformation of the rail 2, avoiding damage to the fastener 3 due to stress generation.

[0036] A washer 16 is provided between the compression nut 10 and the elastic sheet 11. The washer 16 prevents the nut from spinning.

[0037] Two limiting plates 22 are vertically fixed on the base 21, and the two limiting plates 22 are respectively close to both sides of the buckle plate 12. The limiting plates 22 play a limiting role, avoiding the rotation and displacement of the buckle plate 12.

[0038] The buckle plate 12 is made of PAI polyamide-imide material, which has good insulation performance and stiffness.

[0039] A limiting ring 23 is fixed at the lower part of the screw spike 9. The limiting ring 23 limits the height of the buckle plate 12.

[0040] These or other changes to the device may be made with reference to the foregoing detailed description. Although the foregoing detailed description describes specific embodiments of the present invention and describes the intended best mode, no matter how detailed the above description may be in this document, the system may be implemented in a variety of ways. Although the details based on the local support device may vary considerably in their implementation details, they are still included within the devices disclosed herein. As described above, the specific technical terms used when describing specific features or aspects of the device do not mean that the term is redefined herein to be limited to the specific characteristics, features, or aspects of the system associated with the term. In general, the terms used in the following claims should not be construed as limiting the system to the specific embodiments disclosed in the specification, unless the foregoing detailed description section specifically defines these terms. Therefore, the actual scope of the system includes not only the disclosed embodiments, but also all equivalent ways of implementing or realizing the device covered by the claims.

Claims

1. A side-mounted insulated rail fastener, characterized in that: It includes a base (21). On both sides of the base (21), a number of counterbores (24) are respectively provided. On both sides of the base (21), bow-shaped fasteners (15) are respectively provided. The bow-shaped fasteners (15) are in the shape of angle irons. On their horizontal parts, fastening through holes are provided. On the fastening through holes, fastening nuts (8) are coaxially fixed. Inside the fastening nuts (8), fastening bolts (7) are fitted. The fastening bolts (7) pass through the fastening through holes and cooperate with the counterbores (24). On the inner walls of their vertical parts, pin posts (20) are vertically fixed. The pin posts (20) cooperate with the pin holes (14) on the side hanging plates (13) of the sleeper beam (1); On the base (21), a screw spike (9) is vertically fixed. The screw spike (9) is in the shape of a screw rod. On the screw spike (9), a retaining plate (12) is provided. On the retaining plate (12), strip-shaped retaining plate through holes (18) are provided. The screw spike (9) is inserted into the retaining plate through holes (18). On the retaining plate (12), a compression nut (10) is provided. The compression nut (10) is fitted on the screw spike (9). The inner end of the retaining plate (12) presses on the rail bottom of the rail (2); Place the base (21) on the sleeper beam (1). The pin posts (20) on the two bow-shaped fasteners (15) are inserted into the pin holes (14) on the side hanging plates (13) of the sleeper beam (1). Then, screw the fastening bolts (7) into the fastening nuts (8) until the fastening bolts (7) touch the bottom of the counterbores (24) on the base (21), firmly fixing the base (21) on the sleeper beam (1). The two bow-shaped fasteners (15) prevent the base (21) from moving left and right, and the two pin posts (20) prevent the base (21) from being lifted. Then, tighten the nuts to press the inner end of the retaining plate (12) tightly on the rail bottom of the rail (2); On the outer end of the base (21), a vertical plate (5) is vertically fixed. On the vertical plate (5), an advancing through hole (19) is provided. On the advancing through hole (19), an advancing nut (6) is coaxially fixed. Inside the advancing nut (6), an advancing bolt (4) is fitted. The working end of the advancing bolt (4) cooperates with the outer end of the retaining plate (12); It includes a wavy elastic sheet (11). On the elastic sheet (11), an elastic through hole (17) is provided. The elastic sheet (11) is pressed on the retaining plate (12). The elastic through hole (17) on the elastic sheet (11) is sleeved on the screw spike (9). The elastic sheet (11) is pressed by the compression nut (10); An arc-shaped notch is provided at the lower edge of the inner end of the retaining plate (12), and the notch cooperates with the rail bottom; There are two pin posts (20) on each bow-shaped fastener (15), and the distance between the two pin posts (20) is a multiple of the distance between the pin holes (14) on the hanging plate (13); A notch is provided on the upper surface of the pin post (20), and the notch does not extend to the inner end of the pin post (20). The length of the notch is greater than the thickness of the hanging plate (13). Transverse row teeth are provided on the surface of the notch; The several counterbores (24) on each side of the base (21) are arranged at equal intervals. There are two fastening through holes on the bow-shaped fastener (15), and the distance between the two fastening through holes is a multiple of the distance between the corresponding side counterbores (24). Each bow-shaped fastener (15) is firmly connected to the base (21) through two fastening bolts (7).

2. The side-mounted insulated rail fastener according to claim 1, characterized in that: a washer (16) is arranged between the compression nut (10) and the elastic sheet (11).

3. The side-mounted insulated rail fastener according to claim 1, characterized in that: two limiting plates (22) are vertically fixed on the base (21), and the two limiting plates (22) respectively abut against both sides of the buckle plate (12).

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