Insulated steel rail joint

Abstract

The utility model relates to the technical field of steel rail joints, in particular to an insulated steel rail joint, which is characterized in that a joint clamping plate adopts a variable cross-section structure, the thickness of a plate body in the middle area is larger than that of plate bodies in the two side areas, and the two side areas cover the arrangement area of high-strength bolts. And space avoidance between the high-strength bolts and the T-shaped bolts which are mounted in the areas on the two sides is achieved. The fastening device has the advantages that the fastening device can be applied to a cementing insulation joint and is not limited by the distance between the fasteners, and the fasteners are well matched with the joint clamping plate under the condition that the distance between the fasteners is not adjusted; the use performance, especially the bending resistance, of the joint clamping plate is ensured; the structure is simple and reasonable, factory prefabrication can be adopted, construction efficiency and construction quality are effectively improved, and popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of rail joints, in particular to an insulating rail joint. Background Art

[0002] When using seamed lines, bonded insulated joint splints are usually fixed products. If there are requirements for the fastener spacing, such as a fastener spacing of 625mm or 658mm, the T-bolts of the staggered fasteners will collide with the joint splint bolts, making it impossible to install the fastener T-bolts.

[0003] At this time, the common method is to adjust the fastener spacing. For example, when the fastener spacing in the steel spring floating plate ballast section is 595 or 625mm, the conventional staggered fasteners and the rail joint clamp bolts of the seamed line conflict and cannot be installed. The only way is to increase the fastener spacing to 1000mm or reduce it to 580mm to avoid the fasteners and joint clamp bolts. This undoubtedly adds extra workload to the construction and the accuracy needs to be strictly guaranteed.

[0004] In addition, in some other cases, the gauge block and the joint clamp in the fastening system will also cause spatial conflicts, making it impossible to install the gauge block in place and thus unable to adjust the gauge. Summary of the invention

[0005] The purpose of the utility model is to provide an insulated rail joint in view of the above-mentioned deficiencies in the prior art, by adopting a variable-section design for the joint clamping plate to achieve space avoidance between the fastener and the joint clamping plate bolts, and at the same time by partially planing the joint clamping plate to achieve space avoidance between the joint clamping plate and the gauge block, thereby meeting the needs of on-site engineering.

[0006] The purpose of this utility model is achieved by the following technical solutions:

[0007] An insulated rail joint, comprising a fastener system and a joint clamp, wherein the fastener system comprises a T-bolt, a gauge block and a spring bar, and the joint clamp is butted with the rails on both sides through high-strength bolts, characterized in that: the joint clamp adopts a variable cross-section structure, the plate thickness in the middle area is greater than the plate thickness in the two side areas, the two side areas cover the arrangement area of ​​the high-strength bolts, and the space avoidance between the high-strength bolts installed in the two side areas and the T-bolts is achieved.

[0008] Slicing areas are arranged at the two side areas of the joint clamping plate corresponding to the positions of the gauge blocks, so as to achieve space avoidance between the gauge blocks installed at the positions of the sliced ​​areas and the joint clamping plate.

[0009] The joint clamping plate is provided with a countersunk hole structure corresponding to the installation position of the high-strength bolt.

[0010] An insulating plate is arranged between the joint clamping plate and the steel rail, and the insulating plate is adhered to the steel rail by adhesive.

[0011] The two side regions are symmetrically arranged on both sides of the middle region.

[0012] The advantages of the utility model are: it can be applied to bonded insulating joints, is not limited by the fastener spacing, and can achieve good matching between the fasteners and the joint clamps without adjusting the fastener spacing; it ensures the performance of the joint clamps, especially the bending resistance; it has a simple and reasonable structure, can be prefabricated in the factory, effectively improves construction efficiency and quality, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the joint clamp in the utility model;

[0015] Figure 3 for Figure 2 AA and BB cross-section views. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0017] like Figure 1-3 As shown, the marks 1-13 in the figure respectively represent: joint clamp 1, spring bar 2, T-bolt 3, high-strength nut 4, insulation plate 5, rail 6, high-strength bolt 7, washer 8, sliced ​​area 9, gauge block 10, middle area 11, two side areas 12, countersunk structure 13.

[0018] Example: Figures 1 to 3 As shown, the insulated rail joint in this embodiment is used to achieve the connection between adjacent rails in a seamed line. It mainly includes two parts, one is the joint part used to connect the rails, and the other is the fastener system part for installing the rails. This embodiment can solve the space conflict problem between the joint part and the fastener system part.

[0019] Specifically, combined Figure 1 and Figure 2As shown, the joint part in this embodiment mainly includes a joint clamp plate 1, a high-strength nut 4 and a high-strength bolt 7, wherein the joint clamp plate 1 is arranged at the rail waist position on both sides of the rail 6. Along the line direction, the two sides of the joint clamp plate 1 are respectively in contact with the adjacent rails on both sides, and the high-strength bolt 7 penetrates the joint clamp plate 1 and is fastened by the high-strength nut 4 and the washer 8, so that the rails on both sides can be connected through the joint clamp plate 1 to form an integral structure. An insulating plate 5 is arranged between the joint clamp plate 1 and the rail 6, and the insulating plate 5 is fixed to the side of the rail 6 by an adhesive to achieve insulation.

[0020] The fastener system mainly includes spring bars 2, T-bolts 3, and gauge blocks 10, wherein the gauge block 10 is arranged at the bottom of the rail 6 for adjusting the gauge, the spring bars 2 are used to limit and fix the gauge block 10, and the T-bolts 3 are used to install and fix the spring bars 2.

[0021] like Figure 2 As shown, the joint clamping plate 1 in this embodiment adopts a variable cross-section design, wherein the central region 11 maintains a conventional thickness (such as Figure 3 The BB section is shown in the middle), so as to ensure that the overall bending resistance of the joint clamp plate 1 is good, and the two side areas 12 of the joint clamp plate 1 and the conflicting positions of the fastener system are thinned (such as Figure 3 The thickness of the joint clamping plate at this position is reduced, so that a space is formed between the high-strength nut 4 and the T-bolt 3 installed in this area, and the two do not affect each other. It is additionally necessary to explain here: Figure 3 The AA section and the BB section in the figure are only used to show the thickness change of the plate body reflected by the variable cross-section design adopted by the joint clamp plate 1, and the planed area 9 is not shown.

[0022] In order to further allow the high-strength nut 4 to retract inwards to avoid the T-bolt 3, as shown in FIG. Figure 3 As shown, the installation positions of the high-strength bolts 7 in the two side areas 12 adopt countersunk hole structures 13, so that the high-strength nuts 4 can be installed in the countersunk hole structures 13 and then retracted inward for a distance again, thereby minimizing the thickness of the joint.

[0023] Combination Figure 1 and Figure 2 As shown, a planing area 9 is provided at the bottom of the joint clamp 1 at a position corresponding to the gauge block 10. The planing area 9 further reduces the local thickness of the joint clamp 1 in this area. On the premise of ensuring the performance of the joint clamp 1 itself, the gauge block 10 is spatially avoided to avoid spatial conflict between the two.

[0024] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. An insulated rail joint, comprising a fastener system and a joint clamp, wherein the fastener system comprises a T-bolt, a gauge block and a spring bar, and the joint clamp is butted with the rails on both sides by high-strength bolts, characterized in that: The joint clamp adopts a variable cross-section structure, in which the plate thickness in the middle area is greater than the plate thickness in the two side areas. The two side areas cover the arrangement area of ​​the high-strength bolts, thereby achieving space avoidance between the high-strength bolts and the T-bolts installed in the two side areas.

2. The insulated rail joint according to claim 1, characterized in that: Slicing areas are arranged at the two side areas of the joint clamping plate corresponding to the positions of the gauge blocks, so as to achieve space avoidance between the gauge blocks installed at the positions of the sliced ​​areas and the joint clamping plate.

3. The insulated rail joint according to claim 1, characterized in that: The joint clamping plate is provided with a countersunk hole structure corresponding to the installation position of the high-strength bolt.

4. The insulated rail joint according to claim 1, characterized in that: An insulating plate is arranged between the joint clamping plate and the steel rail, and the insulating plate is adhered to the steel rail by adhesive.

5. The insulated rail joint according to claim 1, characterized in that: The two side regions are symmetrically arranged on both sides of the middle region.

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