A modular multi-functional subway fastener with an extra-large height adjustment amount

Abstract

The present invention discloses a modular multi-functional subway fastener with a large height adjustment amount, which includes a base plate fixed on a sleeper through an anchor bolt. Gauge blocks are arranged on both sides of the rail base. A clip mounting plate is provided on the base plate. A pair of clip seats are provided on the clip mounting plate. Clips capable of pressing the gauge blocks are installed on each clip seat. An elastic pad is further provided between the clip mounting plate and the rail. A positioning groove is provided on the base plate, and an elastic plate is arranged in the positioning groove. A height adjustment block capable of replacing different thicknesses to adjust the height of the clip mounting plate is provided between the clip mounting plate and the base plate. The bottom of the height adjustment block is clamped into the positioning groove. A replaceable shoulder is fixed on the base plate, and a limiting plate that is buckled on the clip mounting plate and can limit the height adjustment block and the clip mounting plate is provided on the shoulder. By replacing shoulders with different heights to match height adjustment blocks with different thicknesses, the positioning of the height adjustment pads is convenient and fast, and the modular structure of the fastener is simple.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit fasteners, and particularly relates to an ultra-large height-adjusting subway vibration damping fastener Background Art

[0002] Uneven settlement of the civil engineering structure of urban rail transit is a common disease in engineering. The size of the uneven settlement is affected by engineering geological conditions, construction technology, construction quality and other aspects. The uneven settlement of the civil engineering structure causes the track to be uneven, which may affect the driving safety seriously in severe cases. When the uneven settlement is small, it can be solved by adjusting the height of the rail fasteners

[0003] At present, the maximum height-adjusting amount of commonly used subway fasteners is generally 30-40mm. If the settlement amount of the structure exceeds the maximum allowable height-adjusting amount of the fasteners, the conventional fasteners cannot meet the height-adjusting requirements. To improve the above problems, at the initial stage of the construction of a new line, an ultra-large height-adjusting subway fastener can be installed and laid on the line where settlement risk is predicted, and its adjustment reserve is used when a large settlement occurs on the line Summary of the Invention

[0004] In order to solve the problems of complex structure of the ultra-large height-adjusting fastener and inconvenience of positioning the height-adjusting pad in the prior art, the technical solution adopted by the present invention is as follows

[0005] A modular multi-functional ultra-large height-adjusting subway fastener includes a base plate fixed on the sleeper by anchor bolts, gauge blocks are arranged on both sides of the rail bottom of the rail, a clip mounting plate is arranged on the base plate, a pair of clip seats are arranged on the clip mounting plate, clips for pressing the gauge blocks are installed on each clip seat, an elastic pad is further arranged between the clip mounting plate and the rail, a positioning groove is arranged on the base plate, an elastic plate is arranged in the positioning groove, a height-adjusting block for replacing different thicknesses to adjust the height of the clip mounting plate is arranged between the clip mounting plate and the base plate, the bottom of the height-adjusting block is clamped into the positioning groove, a pair of shoulders with different heights that can be replaced are fixedly installed on the base plate by anchor bolts, and a limiting plate for clamping the clip mounting plate and limiting the height-adjusting block and the clip mounting plate is arranged on the shoulders

[0006] Further, a groove is arranged at the bottom of the clip mounting plate, and a protrusion matching with the positioning groove is arranged at the top of the height-adjusting block

[0007] Further, a group of weight-reducing grooves are arranged on the height-adjusting block

[0008] Further, a pair of mounting seats are arranged on the base plate. When no height-adjusting block is arranged between the clip mounting plate and the base plate, the clip mounting plate is placed in the positioning groove for limiting, and shoulders do not need to be installed on the base plate. Lower clips for pressing both ends of the clip mounting plate are arranged on each mounting seat

[0009] Furthermore, the height-adjusting block is made of polyethylene material.

[0010] With this technical solution, the bottom of the height-adjusting cushion block is positioned by the positioning groove, and the top is limited by the upper limiting plate on the shoulder. By replacing the shoulders with different heights to match the height-adjusting blocks with different thicknesses, the positioning of the height-adjusting cushion block is convenient and fast, and the modular structure of the fastener is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present invention;

[0012] Figure 2 is a cross-sectional view of the present invention;

[0013] Figure 3 is a schematic structural diagram of the base plate;

[0014] Figure 4 is a schematic structural diagram of the clip mounting plate;

[0015] Figure 5 is a schematic structural diagram of the height-adjusting block;

[0016] Figure 6 is a schematic structural diagram of the shoulder;

[0017] Figure 7 is a schematic structural diagram of the fastener in the state where the height-adjusting block and the shoulder are not provided. DETAILED DESCRIPTION OF THE INVENTION

[0018] As Figure 1 and Figure 2 shown, the fastener includes a base plate 2 and a clip mounting plate 4. The base plate 2 is fixed on the sleeper by the anchor bolt 1. As Figure 3 shown, a positioning groove 2-1 is provided on the base plate 2, and an elastic plate 7 is provided in the positioning groove 2-1. In order to adjust the height of the clip mounting plate 4, a height-adjusting block 8 is provided between the clip mounting plate 4 and the base plate 2. The height-adjusting block 8 is placed on the elastic plate 7 and the bottom is limited by the positioning groove 2-1. In order to fix the height-adjusting block 8 and the clip mounting plate 4, a shoulder 9 is further fixed on the base plate 2. The shoulder 9 is fixedly installed on the base plate 2 by the anchor bolt 1. As Figure 6A limiting plate 9-1 is provided at the top of the shown shoulder 9. The limiting plate 9-1 can press the elastic strip mounting plate 4 while limiting both sides of the elastic strip mounting plate 4 and the height adjustment block 8. At the same time, the shoulder 9 itself can limit the end faces of the elastic strip mounting plate 4 and the height adjustment block 8. By cooperating with the positioning groove by the shoulder 9, the elastic strip mounting plate 4 and the height adjustment block 8 can be fixed. A pair of elastic strip seats 4-1 are provided on the elastic strip mounting plate 4. An elastic strip 5 is provided on the elastic strip seat 4-1. Rail gauge blocks 3 are provided on both sides of the rail base. After the elastic strip 5 is installed on the elastic strip seat 4-1, it can press the rail gauge block 3. In order to reduce vibration and noise, an elastic cushion plate 6 is also provided between the rail base and the elastic strip mounting plate 4. In the above structure, the height of the elastic strip mounting plate 4 is controlled by the thickness of the height adjustment block 8. Therefore, in order to meet different height adjustment requirements, different heights of the elastic strip mounting plate 4 can be adjusted by replacing height adjustment blocks 8 with different thicknesses. Similarly, in order to adapt to height adjustment blocks 8 with different thicknesses, the height of the shoulder 9 also needs to be replaced as the height adjustment block 8 is adjusted. In this way, modular combination is realized, which is convenient for installation and adjustment. Moreover, the cooperation between the positioning groove 2-1 and the shoulder 9 can better limit and fix the height adjustment block 8 and the elastic strip mounting plate 4.

[0019] In order to make the elastic strip mounting plate 4 cooperate stably with the height adjustment block 8, as Figure 4 a groove 4-2 is provided at the bottom of the elastic strip mounting plate 4, as Figure 5 shown, a protrusion 8-1 is provided at the top of the height adjustment block 8. When the elastic strip mounting plate 4 and the height adjustment block 8 are assembled, the protrusion 8-1 is stuck into the groove 4-2 to make their cooperation more stable.

[0020] For light weight, as Figure 5 shown, a set of weight reduction grooves 8-2 are provided on the height adjustment block 8. Excess materials are removed through the weight reduction grooves 8-2 to reduce the weight of the height adjustment block 8.

[0021] Since height adjustment is not required by the height adjustment block on some sections, only the elastic strip mounting plate 4 needs to be installed on the tie plate 2 at this time. As Figure 7 shown, it is not necessary to fix the elastic strip mounting plate 4 through the shoulder 9 at this time. A pair of mounting seats 2-2 are provided on the tie plate 2. A lower elastic strip 10 is provided on the mounting seat 2-2 to press the edge of the elastic strip mounting plate 4 to fix the elastic strip mounting plate 4. At this time, the bottom of the elastic strip mounting plate 4 is placed in the positioning groove 2-1 and is limited and supported by the elastic plate 7. In the fastener with the height adjustment block 8 installed, the mounting seat 2-2 no longer functions, and it is not necessary to install the lower elastic strip 10 on it. This fastener adopts a dual modular design. In the non-height adjustment state without using the height adjustment block, the fastener is a medium vibration reduction fastener. In the mode of using the height adjustment block, the fastener is an ultra-large height adjustment fastener, and the maximum height adjustment can reach 90 mm.

[0022] In order to achieve a better insulation effect, the height adjustment block 8 can be made of ultra-high molecular weight polyethylene material.

Claims

1. A modular multi-functional subway fastener with an extremely large height adjustment amount, comprising a base plate (2) fixed on a sleeper by an anchor bolt (1), and gauge blocks (3) are arranged on both sides of the bottom of the rail. It is characterized in that: On the base plate (2), there is an elastic clip mounting plate (4). On the elastic clip mounting plate (4), there is a pair of elastic clip seats (4-1). On each elastic clip seat (4-1), an elastic clip (5) capable of pressing the gauge block (3) is installed. Between the elastic clip mounting plate (4) and the rail, there is also an elastic pad (6). On the base plate (2), there is a positioning groove (2-1). Inside the positioning groove (2-1), there is an elastic plate (7). Between the elastic clip mounting plate (4) and the base plate (2), there is a height adjustment block (8) capable of replacing different thicknesses to adjust the height of the elastic clip mounting plate (4). The bottom of the height adjustment block (8) is snapped into the positioning groove (2-1). On the base plate (2), a pair of shoulders (9) capable of replacing different heights are installed and fixed by the anchor bolt (1). On the shoulder (9), there is a limiting plate (9-1) that is buckled on the elastic clip mounting plate (4) and can limit the height adjustment block (8) and the elastic clip mounting plate (4); at the bottom of the elastic clip mounting plate (4), there is a groove (4-2). At the top of the height adjustment block (8), there is a protrusion (8-1) that cooperates with the positioning groove (2-1); on the height adjustment block (8), there is a set of weight reduction grooves (8-2).

2. The modular multi-functional subway fastener with an extremely large height adjustment amount according to claim 1, It is characterized in that: On the base plate (2), there is a pair of mounting seats (2-2). When no height adjustment block (8) is arranged between the elastic clip mounting plate (4) and the base plate (2), the elastic clip mounting plate (4) is placed in the positioning groove (2-1) for limiting, and the shoulder (9) does not need to be installed on the base plate (2). On each mounting seat (2-2), a lower elastic clip (10) capable of pressing both ends of the elastic clip mounting plate (4) is arranged.

3. The modular multi-functional subway fastener with an extremely large height adjustment amount according to claim 1, It is characterized in that: The height adjustment block (8) is made of polyethylene.

Images