Under-rail backing plate of railway fastener

Abstract

The under-rail base plate of the railway fastener comprises an iron base plate and a rubber base plate arranged at the top end of the iron base plate, an assembling and fixing mechanism is arranged between the iron base plate and the rubber base plate, a damping assembly is arranged at the top end of the rubber base plate, and the assembling and fixing mechanism comprises a connecting and guiding assembly and a connecting and fixing assembly. The connecting part is arranged between the rubber base plate and the iron base plate; the limiting assembly is arranged on the inner side of the connecting and guiding assembly; through the designed connecting groove, the connecting block, the guide groove and the guide block, accurate butt joint of the rubber base plate and the iron base plate can be achieved, meanwhile, through the designed limiting groove, the designed limiting buckle and the designed telescopic spring, the clamped connecting block can be limited and fixed, and compared with the prior art, the rubber base plate and the iron base plate are more convenient to use. And the connection stability between the rubber base plate and the iron base plate is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway construction, and in particular relates to a rail underlay plate of a railway fastener. Background Art

[0002] The main function of railway fasteners is to fix the rails on the sleepers, maintain the track gauge, and prevent the longitudinal and lateral movement of the rails relative to the sleepers, thereby ensuring the safety of rail vehicles. The railway fastener system is an important component of the track. It connects the rails and sleepers (or other types of sub-rail foundations) and firmly fixes the rails on the sleepers through elastic fasteners. The rail pad of the railway fastener is a pad that is arranged between the rails and the concrete sub-rail components to play an insulating and shock-absorbing role. The existing rail pads are composed of iron pads and rubber pads. When the iron pads and rubber pads are assembled and used, the rubber pads are generally placed directly on the top of the iron pads without any connection and limiting structure. When the rails are pressed onto the rubber pads, the position of the rubber pads on the iron pads may be displaced, thereby affecting the shock absorption and isolation effects after installation. For this reason, we propose a rail pad for railway fasteners. Utility Model Content

[0003] The utility model aims to provide a rail pad for a railway fastener, so as to solve the problem that the rubber pad and the iron pad of the rail pad for the railway fastener proposed in the above background technology are not stable enough during assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rail pad of a railway fastener, comprising an iron pad and a rubber pad arranged on the top of the iron pad, an assembly fixing mechanism is arranged between the iron pad and the rubber pad, a shock absorbing component is arranged on the top of the rubber pad, and the assembly fixing mechanism comprises: a connecting guide component, which is arranged at the connection between the rubber pad and the iron pad; and a limiting component, which is arranged on the inner side of the connecting guide component.

[0005] Preferably, the connecting guide assembly includes a connecting groove symmetrically opened at the top end of the iron pad and a connecting block symmetrically fixed at the bottom end of the rubber pad, and the connecting block is snap-connected with the connecting groove.

[0006] Preferably, the bottom end of the connecting block is symmetrically provided with a guide groove and a guide block symmetrically fixed inside the connecting groove, and the guide block is slidably connected to the guide groove.

[0007] Preferably, the limit assembly includes limit grooves symmetrically opened on both sides of the connecting block and built-in grooves symmetrically opened on both sides of the inner wall of the connecting groove, and limit buckles whose ends are connected to the built-in grooves are symmetrically arranged on both sides of the inner wall of the connecting groove. The limit buckles are snap-connected with the limit grooves, and a telescopic spring connected to the inner wall of the connecting groove is arranged inside the limit buckle.

[0008] Preferably, a sliding groove and a sliding block fixed to one side of the inner part of the built-in groove are provided on the side surface of the end of the limiting buckle, and the sliding block is slidably connected to the sliding groove.

[0009] Preferably, the shock absorbing assembly includes an embedded groove formed at the top of the rubber pad and elastic protrusions fixed at equal distances inside the embedded groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model can realize accurate docking of the rubber pad and the iron pad through the designed connecting groove, connecting block, guide groove and guide block. At the same time, with the designed limit groove, limit buckle and telescopic spring, the connecting block can also be limited and fixed after being engaged. Compared with the existing technology, the connection stability between the rubber pad and the iron pad is greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0013] Figure 2 For the utility model Figure 1 A magnified schematic diagram of point A;

[0014] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of point B;

[0015] In the figure: 1, iron pad; 2, rubber pad; 100, connecting groove; 101, connecting block; 200, guide groove; 201, guide block; 300, limit groove; 301, built-in groove; 302, limit buckle; 400, telescopic spring; 500, slide groove; 501, slider; 600, embedded groove; 601, elastic protrusion. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figures 1 to 3The utility model provides a technical solution: a rail pad of a railway fastener, comprising an iron pad 1 and a rubber pad 2 arranged on the top of the iron pad 1, an assembly fixing mechanism is arranged between the iron pad 1 and the rubber pad 2, a shock absorbing component is arranged on the top of the rubber pad 2, and the assembly fixing mechanism comprises: a connecting guide component, which is arranged at the connection between the rubber pad 2 and the iron pad 1; a limiting component, which is arranged on the inner side of the connecting guide component.

[0018] In this embodiment, preferably, the connecting guide assembly includes a connecting groove 100 symmetrically opened at the top of the iron pad 1 and a connecting block 101 symmetrically fixed at the bottom of the rubber pad 2. The connecting block 101 is snap-connected with the connecting groove 100 to facilitate the connection between the rubber pad 2 and the iron pad 1.

[0019] In this embodiment, preferably, a guide groove 200 is symmetrically opened at the bottom end of the connecting block 101 and a guide block 201 is symmetrically fixed inside the connecting groove 100. The guide block 201 is slidably connected to the guide groove 200, which can play a docking guide role when the connecting block 101 is connected to the connecting groove 100.

[0020] In this embodiment, preferably, the limiting assembly includes limiting grooves 300 symmetrically opened on both sides of the connecting block 101 and built-in grooves 301 symmetrically opened on both sides of the inner wall of the connecting groove 100, and limiting buckles 302 whose ends are connected to the built-in grooves 301 are symmetrically arranged on both sides of the inner wall of the connecting groove 100. The limiting buckles 302 are engaged with the limiting grooves 300, so that the connecting block 101 can be temporarily limited inside the connecting groove 100, and the limiting buckle 302 is provided with a telescopic spring 400 connected to the inner wall of the connecting groove 100, so as to drive the limiting buckle 302 to reset and bounce up.

[0021] In this embodiment, preferably, a slide groove 500 and a slider 501 fixed to one side of the built-in groove 301 are provided on the end side of the limit buckle 302. The slider 501 is slidably connected to the slide groove 500, which can play a guiding role when the limit buckle 302 moves.

[0022] In this embodiment, preferably, the shock absorbing assembly includes an embedded groove 600 opened at the top of the rubber pad 2 and elastic protrusions 601 fixed at equal distances inside the embedded groove 600, which can play an accurate limiting role when the track and the rubber pad 2 are in contact with each other, and the elastic protrusions 601 can increase the friction between the track and the pad, thereby enhancing the shock absorbing effect.

[0023] The working principle and use process of the utility model: when the rubber pad 2 and the iron pad 1 need to be assembled, the rubber pad 2 is first embedded in the inner side of the top of the iron pad 1, so that the connecting block 101 is embedded in the inner part of the connecting groove 100 to squeeze the limiting buckle 302, and drive the guide block 201 to slide and connect with the guide groove 200 to play a docking guide role, the limiting buckle 302 is squeezed by the external force to squeeze the telescopic spring 400, and the end of the limit buckle 302 is retracted into the interior of the built-in groove 301, and drives the slide groove 500 to slide on the surface of the slider 501 to play a guiding role, so that the connecting block 101 can be completely stuck in the interior of the connecting groove 100, and the bottom end of the rubber pad 2 and The top of the iron pad 1 fits tightly, and at this time the limit buckle 302 is reset and bounced up by the action of the telescopic spring 400, and drives the end of the limit buckle 302 to slide out of the built-in groove 301, so that the limit buckle 302 can be engaged and connected with the limit groove 300, and the connecting block 101 is limited and fixed inside the connecting groove 100 to complete the assembly work, and the embedded groove 600 opened at the top of the rubber pad 2 and the elastic protrusion 601 set inside the embedded groove 600 can play an accurate limiting role when the track and the rubber pad 2 are fitted, and the friction between the track and the pad can be increased by the elastic protrusion 601, thereby enhancing the shock absorption effect.

[0024] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rail pad for a railway fastener, comprising an iron pad (1) and a rubber pad (2) arranged on the top of the iron pad (1), characterized in that: An assembly fixing mechanism is provided between the iron pad (1) and the rubber pad (2), a shock absorbing component is provided at the top end of the rubber pad (2), and the assembly fixing mechanism comprises: a connecting guide component provided at the connection between the rubber pad (2) and the iron pad (1); and a limiting component provided on the inner side of the connecting guide component.

2. The rail pad for a railway fastener according to claim 1, characterized in that: The connection guide assembly comprises a connection groove (100) symmetrically arranged at the top end of the iron pad (1) and a connection block (101) symmetrically fixed at the bottom end of the rubber pad (2), wherein the connection block (101) is snap-fitted and connected to the connection groove (100).

3. The rail pad for a railway fastener according to claim 2, characterized in that: The bottom end of the connecting block (101) is symmetrically provided with a guide groove (200) and a guide block (201) symmetrically fixed inside the connecting groove (100), and the guide block (201) is slidably connected to the guide groove (200).

4. The rail pad for a railway fastener according to claim 2, characterized in that: The limiting assembly comprises limiting grooves (300) symmetrically arranged on both sides of the connecting block (101) and built-in grooves (301) symmetrically arranged on both sides of the inner wall of the connecting groove (100); limiting buckles (302) whose ends are connected to the built-in grooves (301) are symmetrically arranged on both sides of the inner wall of the connecting groove (100); the limiting buckles (302) are snap-connected to the limiting grooves (300); and a telescopic spring (400) connected to the inner wall of the connecting groove (100) is arranged inside the limiting buckle (302).

5. The rail pad for a railway fastener according to claim 4, characterized in that: The end side of the limiting buckle (302) is provided with a sliding groove (500) and a sliding block (501) fixed to one side of the inner part of the built-in groove (301), and the sliding block (501) is slidably connected to the sliding groove (500).

6. The rail pad for a railway fastener according to claim 1, characterized in that: The shock-absorbing assembly comprises an embedded groove (600) formed at the top of the rubber pad (2) and elastic protrusions (601) fixed at equal distances inside the embedded groove (600).

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