Common fastener for steel rail joint

Abstract

The utility model relates to the technical field of steel rail fasteners, in particular to a common fastener for a steel rail joint, which comprises a gauge block, a pressing plate and an iron backing plate, the gauge block is arranged on the outer side of a steel rail, the pressing plate is buckled on the gauge block, the pressing plate is fixed on the iron backing plate through a short T-shaped bolt and a thin nut, and the short T-shaped bolt is fixed on the iron backing plate. And the highest point position of the short T-shaped bolt is lower than the height of a joint clamping plate bolt on the steel rail joint clamping plate. The utility model has the advantages that: 1) the height of the whole group of fasteners is reduced, and the fastener can be mounted at a steel rail joint clamping plate, is suitable for various fastener spacing working conditions, and is suitable for various joints such as common joints, freezing joints, cementing insulation joints and the like; (2) the height of the whole group of fasteners is reduced to the greatest extent by adopting the pressing plate with the counter bore design, and (3) the height of the whole group of fasteners is reduced to the greatest extent by adopting the combination of the short T-shaped bolts and the thin nuts.

Description

Technical Field

[0001] The utility model relates to the technical field of rail fasteners, in particular to a common fastener used at a rail joint. Background Art

[0002] At present, when using a jointed track, the joint splice is usually a standardized product. If there are requirements for the fastener spacing, such as when the fastener spacing is 625 mm or 658 mm, the T-bolt of the staggered fastener will collide with the bolt of the joint splice, resulting in the inability to install the T-bolt of the fastener. In response to this conflict situation, generally, only the fastener spacing can be adjusted to avoid the fastener and the bolt of the joint splice, but this makes the design complex and has high requirements for construction.

[0003] Therefore, how to provide a fastener that can avoid the bolt of the joint splice for such working conditions is a technical problem to be solved urgently. Summary of the Invention

[0004] The purpose of the utility model is to provide a common fastener used at a rail joint according to the deficiencies of the above-mentioned prior art. By using a pressing block to replace the conventional elastic strip and cooperating with a special design of the T-bolt, the conflict problem between the fastener and the bolt of the joint splice is solved, meeting the needs of on-site working conditions.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A common fastener used at a rail joint, for fixing the rail at the rail joint splice between rails and fixing the rail on the roadbed. It is characterized in that: the common fastener includes a gauge block, a pressing plate and a tie plate. The gauge block is arranged on the outer side of the rail, the pressing plate is buckled on the gauge block, the pressing plate is fixed on the tie plate through a short T-bolt and a thin nut, and the highest point position of the short T-bolt is lower than the height of the bolt of the joint splice on the rail joint splice.

[0007] A counterbore structure is provided on the tie plate, and the thin nut is fixed in the counterbore structure.

[0008] A spring washer is arranged between the short T-bolt and the pressing plate.

[0009] The tie plate is fixed on the roadbed through an anchor bolt.

[0010] The advantages of the utility model are as follows:

[0011] 1) The height of the whole set of fasteners is reduced, and it can be installed at the rail joint splice, applicable to various fastener spacing working conditions, and applicable to various joints such as ordinary joints, frozen joints, and bonded insulated joints;

[0012] 2) The pressing plate with counterbore design minimizes the height of the whole set of fasteners.

[0013] 3) The combination of short T-bolts and thin nuts minimizes the height of the whole set of fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a sectional view of the present utility model;

[0015] Figure 2 is a front view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The features of the present utility model and other related features will be further described in detail below with reference to the drawings through embodiments for the understanding of those skilled in the same industry:

[0017] As Figure 1-2 shown, the markings 1-10 in the figure respectively represent: rail joint splice 1, splice nut 2, splice bolt 3, short T-bolt 4, gauge block 5, thin nut 6, pressing plate 7, tie plate 8, anchor bolt 9, and under-rail pad 10.

[0018] Embodiment: As Figure 1 and Figure 2 shown, the ordinary fasteners used at the rail joint in this embodiment are used for fixing the rail at the position of the rail joint splice 1. The rail joint splice 1 is fixed to the rail through the splice bolt 3 and the splice nut 2, so that the rail joint splice 1 plays the role of connecting adjacent rails in a jointed track.

[0019] Specifically, the ordinary fasteners in this embodiment include gauge blocks 5, thin nuts 6, pressing plates 7, and tie plates 8. Among them, the gauge blocks 5 are attached to both sides of the rail, playing the role of adjusting the gauge and insulation. The tie plate 8 is integrally arranged under the rail, and an under-rail pad 10 for adjusting the height of the rail and playing an insulating role is arranged between it and the rail; the tie plate 8 is fixed to the roadbed through the anchor bolt 9. Pressing plates 7 are arranged on both sides of the tie plate 8, and the pressing plates 7 are fixed to the tie plate 8 through short T-bolts 4 and thin nuts 6 and play a role in clamping and fixing the gauge blocks 5.

[0020] In this embodiment, the pressing plate 7 is provided with a counterbore structure at the positions corresponding to the short T-bolts 4 and the thin nuts 6, thereby reducing the height of the whole set of fasteners; at the same time, shorter short T-bolts 4 and thinner thin nuts 6 than those of conventional fasteners are used to jointly reduce the height of the whole set of fasteners, so as to achieve avoidance of the splice bolts 3 and the splice nuts 2. It can be installed at the rail joint splice, is applicable to various fastener spacing working conditions, and there is no need to adjust the fastener spacing.

[0021] In the specific implementation of this embodiment: The pressing plate 7 is made of 45# steel, which can meet the requirements of the clamping force and strength.

[0022] A spring washer can be provided between the short T-bolt 4 and the pressing plate 7 to effectively prevent loosening.

[0023] Although the above embodiments have described in detail the concept and implementation of the purpose of the present utility model with reference to the accompanying drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present utility model without departing from the scope defined by the claims, so they will not be elaborated here one by one.

Claims

1. A common fastener for rail joints, used for fixing rails at rail joint clamps between rails, fixing the rails on the ballast bed, characterized in that: The common fastener comprises a gauge block, a pressure plate and an iron pad, wherein the gauge block is arranged on the outside of the rail, the pressure plate is pressed on the gauge block, and the pressure plate is fixed to the iron pad by short T-bolts and thin nuts, and the highest point of the short T-bolt is lower than the height of the joint clamping plate bolt on the rail joint clamping plate.

2. A common fastener for rail joints according to claim 1, characterized in that: The iron backing plate is provided with a countersunk hole structure, and the thin nut is fixed in the countersunk hole structure.

3. The common fastener for rail joints according to claim 1, characterized in that: A spring washer is arranged between the short T-bolt and the pressure plate.

4. The common fastener for rail joints according to claim 1, characterized in that: The iron backing plate is fixed to the ballast bed by anchor bolts.

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