Double-rail fastener structure with guard rail function

Abstract

The utility model belongs to the technical field of railway tracks, and particularly relates to a double-track fastener structure with a guard rail function, which comprises a running rail and a guard rail which are connected together, an iron base plate arranged on a boss on the side wall of an inspection pit is arranged below the running rail and the guard rail, one side of the running rail far away from the guard rail is arranged on the iron base plate through an elastic strip, and the elastic strip is arranged on the guard rail. And the iron base plate is provided with a barb for hooking the guard rail on one side of the guard rail far away from the running rail. The fastener is small in occupied area, can meet the requirement of the fastener for laying the guard rail on the side wall boss of the inspection pit, and is suitable for being installed on the side wall boss of the inspection pit.

Description

Technical field:

[0001] The utility model belongs to the technical field of railway tracks, in particular to a double-track fastener structure with a track protection function. Background technology:

[0002] Guardrail refers to the steel rail laid on the inner side of the rail on the track that does not bear the vertical load of the wheels.

[0003] The Chinese utility model patent (publication number CN2180672Y, application date 1993.10.27, public announcement date 1994.10.26) discloses a small radius curved concrete sleeper and its fasteners which are directly placed on the ballast layer to support the track, including a concrete sleeper, a basic rail (i.e., a running rail), a guard rail, a spring clip fastener, and a connecting bolt. The internal reinforcement of the concrete sleeper is composed of six steel bars and four stirrups. One side of the concrete sleeper is provided with a bearing rail groove for installing the guard rail; the waists of the lower basic rail and the guard rail are drilled with relative connecting holes; a spacer iron is embedded between the lower basic rail and the guard rail, and the guard rail, the spacer iron, and the lower basic rail are connected together by bolts, and rail supports are installed on both sides and the outer side of the upper basic rail to firmly press against the top of the rail, and are fixed to the concrete sleeper with spring clip fasteners through connecting bolts.

[0004] The shortcomings of the above-mentioned fasteners are: due to the small installation area of ​​the inspection pit side wall boss, the space for workers to operate is limited, and the two sides are fixed to the concrete sleepers with spring fasteners through connecting bolts, which occupies a large area and cannot meet the requirements for laying guardrail fasteners on the inspection pit side wall boss, that is, it is not suitable for installation on the inspection pit side wall boss. Summary of the invention:

[0005] The utility model aims to provide a double-rail fastener structure with rail guarding function, which occupies a small area and can meet the requirements of laying rail guarding fasteners on the side wall boss of the inspection pit, that is, it is suitable for installation on the side wall boss of the inspection pit.

[0006] The utility model is achieved in this way:

[0007] A double-rail fastener structure with a rail guard function comprises a running rail and a guard rail connected together, wherein an iron pad installed on a boss on the side wall of an inspection pit is provided below the running rail and the guard rail, the side of the running rail away from the guard rail is installed on the iron pad through an elastic bar, and the iron pad is provided with a barb for hooking the guard rail on the side of the guard rail away from the running rail.

[0008] In the above-mentioned double-rail fastener structure with rail guard function, the barb includes a hook-shaped body located above the guard rail, and a connecting portion connecting the hook-shaped body and the iron pad, the hook-shaped body and the connecting portion are long strips, and the length direction is arranged longitudinally.

[0009] In the above-mentioned double-rail fastener structure with rail guard function, the iron pad is installed on the side wall boss of the inspection pit through anchor bolt 1 and anchor bolt 2. Anchor bolt 1 is located on the side of the elastic bar away from the running rail, and anchor bolt 2 is arranged under the guard rail.

[0010] In the above-mentioned double-rail fastener structure with rail protection function, an insulating buffer plate and a plate height adjustment plate are provided between the iron pad and the boss on the side wall of the inspection pit.

[0011] In the above-mentioned double-track fastener structure with rail protection function, the rod of the anchor bolt is screwed through the flat washer, heavy spring washer, flat block, iron plate, insulating buffer plate, under-plate height adjustment plate and insulating sleeve arranged in the boss of the inspection pit side wall.

[0012] In the above-mentioned double-rail fastener structure with rail protection function, the rod of the second anchor bolt is screwed through the iron pad, the insulating buffer plate, the lower plate height adjustment pad and the insulating sleeve arranged in the boss of the inspection pit side wall in sequence.

[0013] In the above-mentioned double-rail fastener structure with rail guard function, a rail pad is provided between the running rail, the guard rail and the iron pad, and a notch is provided on the rail pad to avoid the second head of the anchor bolt, the barb is arranged at the front of the iron pad, and the second anchor bolt is arranged at the rear of the iron pad.

[0014] In the above-mentioned double-rail fastener structure with rail protection function, the spring bar is a W-shaped spring bar, and the W-shaped spring bar is installed on the iron pad through a T-shaped bolt and a locking nut.

[0015] In the above-mentioned double-rail fastener structure with guardrail function, a spacer is provided between the running rail and the guardrail, and the three are connected together by a fastening assembly, the spacer is composed of two blocks that fit each other, and the outer sides of the two blocks are respectively adapted to the waist of the running rail and the waist of the guardrail. During installation, one of the blocks is first placed between the running rail and the guardrail and fits with the corresponding waist, and then the other block is placed between the running rail and the guardrail from the front side of the previous block, and moved backward to form an integral spacer, or the other block is placed between the running rail and the guardrail from the rear side of the previous block, and moved forward to form an integral spacer, and finally fixed between the running rail and the guardrail by the fastening assembly; during disassembly, the fastening assembly is first removed, and then one of the blocks is moved forward or backward and taken out from between the running rail and the guardrail, and finally the other block is taken out.

[0016] In the above-mentioned double-track fastener structure with rail protection function, one of the insert blocks protrudes a limiting block toward the other insert block, and the other insert block is provided with a limiting groove matched with the limiting block, and the two insert blocks are clamped together through the limiting block and the limiting groove.

[0017] In the above-mentioned double-rail fastener structure with rail guard function, the fastening assembly includes a fastening bolt and a fastening nut, the rod of the fastening bolt passes through the running rail, the partition iron, the guard rail and the fastening nut in sequence, and the limit block is arranged in the middle of the insert block, and the rod of the fastening bolt passes through the middle of the limit block.

[0018] The outstanding advantages of the utility model compared with the prior art are:

[0019] 1. The iron pad of the utility model adopts an asymmetric structural design, the outer side of the running rail is a spring bar buckling structure, and the outer side of the guard rail is a barb structure, which effectively reduces the overall installation size of the fastener and shortens the occupied area of ​​the fastener. The small occupied area of ​​the fastener can meet the requirements of laying the guard rail fastener on the side wall boss of the inspection pit, that is, it is suitable for installation on the side wall boss of the inspection pit; and when the train runs on the running rail, the spring bar buckling structure provides buckling pressure for the running rail, and at the same time, the vertical vibration of the running running rail is realized, and the barb structure can safely and effectively buckle the bottom of the guard rail, and at the same time, the double-track structure provides a sufficiently long force arm, which greatly enhances the anti-rollover ability of the running rail;

[0020] 2. The fastener of the utility model is provided with an anchoring system on the rail bearing surface, and the anchor bolt 2 is provided under the guard rail, which can effectively reduce the lateral size of the iron pad and reduce the cost of the fastener. At the same time, the overturning force of the rail can be effectively transmitted to the anchoring system, the force is more balanced, and the structure is more stable;

[0021] 3. The partition iron of the utility model is composed of two embedded blocks that fit each other, and the outer sides of the two embedded blocks are respectively matched with the waist of the running rail and the waist of the guard rail. When installing, first put one of the embedded blocks between the running rail and the guard rail and fit it with the corresponding waist of the rail, and then put the other embedded block between the running rail and the guard rail from the front or rear side of the previous embedded block, and move it backward or forward to form an integral partition iron, and finally connect and fix it between the running rail and the guard rail through the fastening assembly; when disassembling, first remove the fastening assembly, then move one of the embedded blocks forward or backward and take it out from between the running rail and the guard rail, and finally take out the other embedded block. To disassemble and assemble the partition iron, there is no need to disassemble the running rail and the guard rail. Only the fastening assembly needs to be removed to take out the partition iron, which is convenient for disassembly and assembly of the partition iron, effectively reducing assembly time, low labor and product replacement costs, low maintenance difficulty, and effectively reducing the cost of later maintenance and repair. Description of the drawings:

[0022] Figure 1 It is a three-dimensional diagram of the utility model without the lower height adjustment pad installed;

[0023] Figure 2 It is a half-section view of the utility model without the lower height adjustment pad installed;

[0024] Figure 3This is an exploded view of the utility model without the lower height adjustment pad installed;

[0025] Figure 4 It is a three-dimensional diagram of the utility model without running rails, guard rails, partitions and under-board height-adjusting pads.

[0026] Figure numerals: 1. Running rail; 2. Guard rail; 3. Inspection pit side wall boss; 4. Iron pad; 5. Spring bar; 6. Barb; 6a. Hook-shaped body; 6b. Connecting part; 7. Anchor bolt one; 8. Anchor bolt two; 9. Pad under rail; 10. Notch; 11. Iron spacer; 12. Limit block; 13. Limit groove; 14. Fastening bolt; 15. Fastening nut; 16. Insulating buffer plate; 17. T-bolt; 18. Locking nut. Specific implementation method:

[0027] The present invention is further described below with reference to specific embodiments. Figure 1 —4:

[0028] A double-rail fastener structure with a guardrail function, comprising a running rail 1 and a guardrail 2 connected together, wherein an iron pad 4 installed on a boss 3 on the side wall of an inspection pit is provided below the running rail 1 and the guardrail 2, the side of the running rail 1 away from the guardrail 2 is installed on the iron pad 4 through an elastic bar 5, and the iron pad 4 is provided with a barb 6 for hooking the guardrail 2 on the side of the guardrail 2 away from the running rail 1.

[0029] In this embodiment, the length direction of the running rail 1 and the guard rail 2 is the longitudinal direction, that is, the front-to-back direction; the width direction of the running rail 1 and the guard rail 2 is the transverse direction.

[0030] like Figure 1-4 As shown, the iron pad 4 of the utility model adopts an asymmetric structural design, the outer side of the running rail 1 is a spring bar 5 buckling structure, and the outer side of the guard rail 2 is a barb 6 structure, which effectively reduces the overall installation size of the fastener and shortens the occupied area of ​​the fastener. The fastener occupies a small area and can meet the requirements of laying guard rail fasteners on the side wall boss of the inspection pit, that is, it is suitable for installation on the side wall boss 3 of the inspection pit; and when the train runs on the running rail 1, the spring bar 5 buckling structure provides a buckling pressure for the running rail 1, and at the same time allows the running rail 1 to vibrate in the vertical direction, thereby achieving the effect of track fixing and vibration reduction, and the barb 6 structure can safely and effectively buckle the bottom of the guard rail 2, and at the same time the double-track structure provides a sufficiently long force arm, which greatly enhances the anti-tilt ability of the running rail.

[0031] The utility model effectively solves the problem of limited installation dimensions of the guardrail 2 required to be installed on the inspection pit side wall boss 3, and provides a new method for installing the guardrail on the inspection pit side wall boss, which not only ensures the installation and positioning of the guardrail 2, but also provides greater anti-rollover capability of the rail.

[0032] The double-track inspection pit side wall boss fastener structure system of the present invention has fewer parts and components, lower manufacturing cost, and a more compact and stable overall structure.

[0033] The structure of the barb 6: The barb 6 includes a hook-shaped body 6a located above the guardrail 2, and a connecting portion 6b connecting the hook-shaped body 6a and the iron pad 4. The hook-shaped body 6a and the connecting portion 6b are long strips, and the length direction is arranged along the longitudinal direction, so the buckling effect is good.

[0034] The installation structure of the iron plate 4: Figure 1-4 As shown, the iron plate 4 is installed on the sidewall boss 3 of the inspection pit through anchor bolts 1 7 and 2 8. Anchor bolt 1 7 is located on the side of the spring bar 5 away from the running rail 1, and anchor bolt 2 8 is arranged below the guard rail 2. The utility model fastener sets an anchor system on the rail bearing surface, and anchor bolt 2 8 is arranged below the guard rail 2, which can effectively reduce the lateral size of the iron plate 4 and reduce the cost of the fastener. At the same time, the overturning force of the rail can be effectively transmitted to the anchor system, the force is more balanced, and the structure is more stable.

[0035] Furthermore, an insulating buffer plate 16 and a plate height adjustment plate are provided between the iron pad 4 and the boss 3 on the side wall of the inspection pit.

[0036] The installation structure of the anchor bolt 7: The rod of the anchor bolt 7 is screwed through the flat washer, heavy spring washer, flat block, iron plate 4, insulating buffer plate 16, under-plate height adjustment plate and insulating sleeve arranged in the boss 3 on the side wall of the inspection pit.

[0037] The installation structure of the anchor bolt 2 8: The rod of the anchor bolt 2 8 is screwed through the iron pad 4, the insulating buffer plate 16, the lower plate height adjustment pad and the insulating sleeve arranged in the boss 3 on the side wall of the inspection pit in sequence.

[0038] In order to facilitate the installation of the anchor bolt 8, a rail pad 9 is provided between the running rail 1 and the guard rail 2 and the iron pad 4. The rail pad 9 is provided with a notch 10 for avoiding the head of the anchor bolt 8. The barb 6 is arranged at the front of the iron pad 4, and the anchor bolt 8 is arranged at the rear of the iron pad 4.

[0039] Furthermore, the spring bar 5 is a W-shaped spring bar, which is installed on the iron base plate 4 through a T-shaped bolt 17 and a locking nut 18.

[0040] The connection structure of the running rail 1 and the guard rail 2: an iron partition 11 is provided between the running rail 1 and the guard rail 2, and the three are connected together by a fastening assembly. The iron partition 11 is composed of two blocks that fit each other, and the outer sides of the two blocks are respectively adapted to the waist of the running rail 1 and the waist of the guard rail 2. During installation, one of the blocks is first placed between the running rail 1 and the guard rail 2 and fits with the corresponding waist, and then the other block is placed between the running rail 1 and the guard rail 2 from the front side of the previous block, and moved backward to form the overall iron partition 11, or the other block is placed between the running rail 1 and the guard rail 2 from the rear side of the previous block, and moved forward to form the overall iron partition 11, and finally connected and fixed between the running rail 1 and the guard rail 2 by the fastening assembly; during disassembly, first remove the fastening assembly, then move one of the blocks forward or backward, and take it out from between the running rail 1 and the guard rail 2, and finally take out the other block. Compared with the existing maintenance and replacement of the partition iron 11, when disassembling and assembling, the running rail 1 and the guard rail 2 need to be removed from the iron pad 4 before the partition iron 11 can be taken out or installed. The utility model can disassemble and assemble the partition iron 11 without disassembling the running rail 1 and the guard rail 2. Only the fastening components need to be disassembled to take out the partition iron 11, which is convenient for disassembly and assembly of the partition iron 11, effectively reducing the assembly time, low labor and product replacement costs, low maintenance difficulty, and effectively reducing the cost of later maintenance.

[0041] The fastener of the utility model adopts a double-rail assembly structural design to realize the guard rail. The running rail 1 and the guard rail 2 are assembled together through the spacer 11 and the fastening assembly. The structure is stable and the installation is simple. The double rails can be pre-assembled in the rail factory, which greatly reduces the installation workload on the construction site and improves the installation efficiency.

[0042] Furthermore, one of the inserts has a limit block 12 protruding toward the other insert, and the other insert is provided with a limit groove 13 adapted to the limit block 12, and the two inserts are clamped together by the limit block 12 and the limit groove 13. The two inserts are clamped together by the limit block 12 and the limit groove 13 to form an integral iron spacer 11, which is convenient for fastening assembly installation.

[0043] Structure of the fastening assembly: The fastening assembly includes a fastening bolt 14 and a fastening nut 15. The rod of the fastening bolt 14 passes through the running rail 1, the partition iron 11, the guard rail 2 and is screwed to the fastening nut 15 in sequence. The limit block 12 is arranged in the middle of the insert block, and the rod of the fastening bolt 14 passes through the middle of the limit block 12, and the connection strength is good.

[0044] Installation steps of this utility model:

[0045] Step 1: pre-embed the insulating sleeve on the boss 3 on the side wall of the inspection pit;

[0046] Step 2: Place the insulating buffer plate 16 on the boss 3 on the side wall of the inspection pit, so that the center of the oblong hole of the insulating buffer plate 16 is aligned with the center of the insulating sleeve;

[0047] Step 3: Place the iron plate 4 so that the center of the oblong hole of the iron plate 4 is aligned with the center of the insulating sleeve;

[0048] Step 4: Place a flat washer on the oblong hole of the spring bar installation side of the iron washer 4, with the long side of the flat washer parallel to the long side of the iron washer 4, and the center of the flat washer hole is aligned with the center of the oblong hole of the iron washer 4;

[0049] Step 5: Pass the anchor bolt 7 through the flat washer and heavy spring washer in sequence, apply special railway grease, pass through the round hole of the flat washer, and then pass through the oblong hole of the insulating buffer plate 16 and screw it into the embedded sleeve, and fix it with a fixed torque;

[0050] Step 6: Apply railway grease to the threaded part of the anchor bolt 2 8 and pass it through the oblong hole on the other side of the iron plate 4, then through the oblong hole of the insulating buffer plate 16 and screw it into the embedded sleeve, and fix it with a fixed torque;

[0051] Step 7: Install the rail bottom plate 9 on the iron plate 4;

[0052] Step 8: First install the guard rail 2 into the barb 6 of the iron pad 4, and then put the running rail 1 into the other side;

[0053] Step 10: Place one of the inserts of the spacer 11 between the running rail 1 and the guard rail 2 and fit it with the corresponding rail waist, then place another insert from the front side of the previous insert between the running rail 1 and the guard rail 2, and move it backward to form the whole spacer 11, or place another insert from the rear side of the previous insert between the running rail 1 and the guard rail 2, and move it forward to form the whole spacer 11;

[0054] Step 11: The rod of the fastening bolt 14 passes through the running rail 1, the spacer 11, the guard rail 2 and is screwed to the fastening nut 15 in sequence;

[0055] Step 12: Grease the threaded part of the T-bolt 17, then place the T-bolt 17, the spring bar 5, the flat washer and the lock nut 18, then insert the head of the T-bolt 17 into the mounting hole of the iron plate 4 and rotate it 90° clockwise, then lift it up so that the head of the T-bolt 17 completely enters the mounting groove of the iron plate 4, then tighten the lock nut 18 by hand, confirm that the T-bolt 17 is vertical, and finally tighten the spring bar 5;

[0056] Step 13: Tighten the T-bolt 17 with a fixed torque to complete the installation of the fastener.

[0057] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A double-rail fastener structure with a guard rail function, comprising a running rail (1) and a guard rail (2) connected together, Features: An iron pad (4) mounted on a boss (3) on the side wall of the inspection pit is provided below the running rail (1) and the guard rail (2); the side of the running rail (1) away from the guard rail (2) is mounted on the iron pad (4) via a spring bar (5); and the iron pad (4) is provided with a barb (6) for hooking the guard rail (2) on the side of the guard rail (2) away from the running rail (1).

2. A double-track fastener structure with a rail protection function according to claim 1, Features: The barb (6) comprises a hook-shaped body (6a) located above the guardrail (2), and a connecting portion (6b) connecting the hook-shaped body (6a) and the iron pad (4); the hook-shaped body (6a) and the connecting portion (6b) are long strips, and the length direction is arranged along the longitudinal direction.

3. A double-track fastener structure with a rail protection function according to claim 1, Features: The iron pad (4) is installed on the side wall boss (3) of the inspection pit through anchor bolt one (7) and anchor bolt two (8), the anchor bolt one (7) is located on the side of the spring bar (5) away from the running rail (1), and the anchor bolt two (8) is arranged below the guard rail (2).

4. A double-track fastener structure with a rail protection function according to claim 3, Features: A rail underlay plate (9) is provided between the running rail (1) and the guard rail (2) and the iron pad (4); a notch (10) is provided on the rail underlay plate (9) for accommodating the head of the second anchor bolt (8); the barb (6) is arranged at the front of the iron pad (4), and the second anchor bolt (8) is arranged at the rear of the iron pad (4).

5. A double-track fastener structure with a rail protection function according to claim 1, Features: A spacer (11) is provided between the running rail (1) and the guard rail (2), and the three are connected together by a fastening assembly. The spacer (11) is composed of two mutually fitting blocks, and the outer side surfaces of the two blocks are respectively adapted to the waist of the running rail (1) and the waist of the guard rail (2).

6. A double-track fastener structure with a rail protection function according to claim 5, Features: One of the insert blocks has a limit block (12) protruding toward the other insert block, and the other insert block is provided with a limit groove (13) matched with the limit block (12), and the two insert blocks are clamped together through the limit block (12) and the limit groove (13).

7. A double-track fastener structure with a rail protection function according to claim 6, Features: The fastening assembly comprises a fastening bolt (14) and a fastening nut (15); the rod of the fastening bolt (14) passes through the running rail (1), the partition iron (11), the guard rail (2) in sequence and is screwed to the fastening nut (15); the limit block (12) is arranged in the middle of the insert block, and the rod of the fastening bolt (14) passes through the middle of the limit block (12).

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