Elastic strip flying-proof structure device for bolt-free fastener

Abstract

The invention relates to an elastic strip flying-proof structure device for a bolt-free fastener, which is used for ensuring that the elastic strip anti-flying function is effective, and no matter theelastic strip on one side of a steel rail or the elastic strips on two sides are simultaneously broken, no matter the breakage of the elastic strip occurs at a large arc part of a front arch or a small arc part of a rear arch, the breakage part can be restrained and the flying phenomenon cannot occur. A first e-shaped elastic strip and a second e-shaped elastic strip, which are positioned at twotransverse sides of a steel rail, are provided. Two sides of the front arch large circular arc parts of the first e-shaped elastic strip and the second e-shaped elastic strip are respectively providedwith a first steel wire rope and a second steel wire rope, which penetrate through the steel rail downwards, and two ends of the first steel wire rope and the second steel wire rope are respectivelybound and connected with the front arch large circular arc parts of the first e-shaped elastic strip and the second e-shaped elastic strip to form a self-locking system. Except for the binding connecting sections at the two ends, the sections of the first steel wire rope and the second steel wire rope are disposed in the insulating structure.

Description

technical field [0001] The invention relates to a rail fastening system, in particular to an anti-flying structure device for elastic strips used for boltless fasteners. Background technique [0002] Rail fasteners are the main part of the track structure and an important part that connects the rail and the foundation under the rail. The main functions of fasteners include: (1) maintaining and adjusting the gauge and direction of the rail; (2) providing longitudinal resistance to prevent the rail from crawling and breaking the rail from being too large; (3) providing elasticity to reduce vibration and impact; (4) Increase the rigidity of the track frame to prevent the track from buckling; (5) Provide track insulation to ensure the normal operation of the track circuit; (6) Have a certain ability to adjust the height of the rail. [0003] According to the classification of the clip fixing method, the commonly used fasteners in domestic rail transit can be divided into bolt f...

AI Technical Summary

Problems solved by technology

However, the anti-flying structure has the following deficiencies: (1) the flexible protective cover affects the status inspection of the elastic strip, and when the elastic strip has cracks or even breaks, it cannot be found by the naked eye, and there is a major railway safety hazard; (3) the elastic strip is passed through Interference fit installation, in its installation position, the protective sleeve will be destroyed when the interference is pressed in, resulting in weakening or loss of anti-flying function

The disadvantage of this device is that it can only realize the restraint function when the large arc of the elastic strip breaks. When the small arc of the elastic strip breaks, the device will fly out together with the elastic strip and fail.

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