Height-adjusting fastener device for steel rail

Abstract

The utility model discloses a height-adjusting fastener device for a steel rail, which comprises a base, anchor bolts are symmetrically arranged on the base, flat cushion blocks are sleeved on the anchor bolts, a pressing groove is arranged on the base, insulating blocks pressed on a rail are symmetrically arranged in the pressing groove, and the insulating blocks are arranged on the base. And an elastic strip for pressing the main insulation block is clamped at the bottom of the flat cushion block. Through the arrangement of the anchor bolt, the flat cushion block, the insulation block, the elastic strip and the pressing groove, elastic fastening of the track is achieved, meanwhile, the adjusting assembly is arranged in the adjusting groove, the height of the track is adjusted, meanwhile, the whole device is simple in structure, the fault rate is low compared with a complex height adjusting structure, and the cost is low. The strength of the high base is guaranteed through the arrangement of the reinforcing ribs and the filling cushion blocks, and meanwhile it is guaranteed that more supports can be provided between the lifting base and the adjusting grooves after the lifting assemblies are lifted through the arrangement of the filling cushion blocks.

Description

Technical Field

[0001] This utility model relates to the field of rail fastener technology, specifically a rail height adjustment fastener device. Background Technology

[0002] Railway tracks are the foundation of railway transportation, and their structural stability and safety directly affect the operational efficiency and safety of trains. Tracks consist of rails, ballast, track bed, and fasteners. Fasteners, as crucial components connecting the rails to the track bed, maintain rail stability and reduce relative movement between the rails and the track bed. Traditional fasteners are mainly divided into elastic fasteners and rigid fasteners. Elastic fasteners perform better in absorbing vibration and impact, making them suitable for high-speed and heavy-haul railways. In actual operation, due to factors such as track bed settlement, climate change, and vehicle load, the rail height may change. If this change is not adjusted in time, it will affect the operational safety and passenger comfort of trains. Therefore, height-adjusting fasteners have emerged to effectively adjust the rail height, ensuring optimal operation.

[0003] However, existing technologies still have significant shortcomings, such as:

[0004] In actual operation, the height of the rails may change due to factors such as track bed settlement, climate change and vehicle load. If such changes are not adjusted in time, they will affect the safety of train operation and passenger comfort. Furthermore, the structural requirements for rail transit are generally simple structure and low failure rate. Therefore, we propose a rail height adjustment fastener device. Utility Model Content

[0005] The purpose of this utility model is to provide a height adjustment fastener device for rails to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A height adjustment fastener device for rails includes a base, on which anchor bolts are symmetrically arranged, and flat pads are fitted on the anchor bolts.

[0008] The base is provided with a pressing groove, and insulating blocks that press on the track are symmetrically arranged inside the pressing groove. The bottom of the flat pad is fitted with a spring strip for pressing the main insulating block.

[0009] The bottom of the pressing groove is provided with an adjustment groove, and the adjustment groove is provided with a height adjustment component.

[0010] Preferably, the height adjustment component includes a threaded sleeve pre-embedded inside the base, a height adjustment bolt rotatably disposed inside the threaded sleeve, an adjustment head fixedly disposed at the bottom of the base on the height adjustment bolt, and a raised base fixedly connected to the end of the height adjustment bolt away from the adjustment head.

[0011] An adjusting rubber pad is provided between the raised base and the bottom of the track.

[0012] Preferably, the bottom of the raised base is provided with a reinforcing rib, and the reinforcing rib is triangular.

[0013] Preferably, the adjustment groove is provided with a filling pad at the bottom of the reinforcing rib, the bottom of the adjustment groove is provided with a track groove, and the bottom of the filling pad is provided with a track insert that can move into the track groove.

[0014] Preferably, the portion of the bottom of the insulating block located above the adjustment groove is not less than one-half, the bottom of the insulating block is fixedly connected to a top block that is in movable contact with the lifting base, a limiting slide groove is provided on the side wall of the pressing groove, a slider is slidably arranged inside the limiting slide groove, and the slider is fixedly connected to the side of the insulating block.

[0015] Preferably, the surface of the raised base is provided with a plurality of slots, the bottom of the adjusting rubber pad is provided with a locking strip corresponding to each slot, and the top block is located on both sides of the adjusting rubber pad.

[0016] Preferably, the base has a spring groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By setting anchor bolts, flat pads, insulating blocks, elastic strips, and clamping grooves, elastic fastening of the track is achieved. At the same time, an adjustment component is set inside the adjustment groove to adjust the height of the track. Combining elastic fasteners and height adjustment fasteners further ensures the stability of the track. In addition, the entire device has a simple structure and a low failure rate compared to complex height adjustment structures, making it suitable for the requirements of track application accessories.

[0019] 2. The strength of the raised base is ensured by the setting of reinforcing ribs and filling pads, which can meet the strength requirements of use. At the same time, the setting of filling pads ensures that there is more support between the raised base and the adjustment groove after the raising component is raised, preventing all the pressure from acting on the adjusting bolt and causing damage to the adjusting bolt.

[0020] 3. By setting up limit grooves, sliders and top blocks, it is ensured that when the height of the base is adjusted to the height of the track, the insulating block can be moved upward and adjusted together, and the stability of the insulating block during the upward movement is guaranteed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the clamping groove of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the adjustment groove of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the limiting groove of this utility model;

[0025] Figure 5 This is a schematic diagram of the raised base structure of this utility model.

[0026] In the diagram: 1. Base; 2. Anchor bolt; 3. Flat pad; 4. Pressing groove; 5. Track; 6. Insulating block; 7. Spring bar; 8. Adjustment groove; 9. Threaded sleeve; 10. Height adjustment bolt; 11. Adjusting head; 12. Raising base; 13. Adjusting rubber pad; 14. Reinforcing rib; 15. Filler pad; 16. Track groove; 17. Track insert; 18. Top block; 19. Limiting slide groove; 20. Sliding block; 21. Slot; 22. Slot; 23. Spring bar groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 This utility model provides a technical solution:

[0029] A height adjustment fastener device for rails includes a base 1, on which anchor bolts 2 are symmetrically arranged, and flat pads 3 are fitted on the anchor bolts 2. The base 1 is fixed to the sleeper by the anchor bolts 2. The sleeper has embedded parts that cooperate with the anchor bolts 2. The thickness of the flat pads 3 can be selected in various specifications during use, and the clamping force of the spring clip 7 can be adjusted by adjusting the thickness of the flat pads 3.

[0030] The base 1 has a pressing groove 4, and the pressing groove 4 is symmetrically arranged with insulating blocks 6 pressing on the track 5. The bottom of the flat pad block 3 is fitted with a spring strip 7 for pressing the insulating block 6. The base 1 has a spring strip groove 23. The bottom part of the insulating block 6 is not less than half of the height above the adjustment groove 8. The pressing groove 4 is a groove opened above the adjustment groove 8 for placing the insulating block 6. Part of the base of the insulating block 6 is located at the bottom of the pressing groove 4 and part is located above the adjustment groove 8. The part above the adjustment groove 8 occupies not less than half of the width of the entire base of the insulating block 6. This setting ensures that the top block 18 can better drive the insulating block 6 to move upward during the subsequent lifting of the base 12. The width of the top block 18 is the same as the width of the base of the insulating block 6 above the adjustment groove 8. The setting of the spring strip groove 23 ensures that the spring strip 7 can be better fixed when under pressure, preventing it from sliding off.

[0031] The bottom of the pressing groove 4 is provided with an adjustment groove 8, and the adjustment groove 8 is provided with a height adjustment component.

[0032] The height adjustment component includes a threaded sleeve 9 embedded inside the base 1. A height adjustment bolt 10 is rotatably mounted inside the threaded sleeve 9. An adjusting head 11 is fixedly mounted on the bottom of the base 1 via the height adjustment bolt 10. The threaded sleeve 9 is fixed inside the base 1 and is an integral part of the base 1. Alternatively, a threaded hole with the same function as the threaded sleeve 9 can be opened on the base 1. This design ensures the stability of the threaded sleeve 9 and reduces the probability of stripping. The adjusting head 11 is a bolt head, which can be specially designed so that only track maintenance personnel can use a special device to adapt and rotate the adjusting head 11, thereby moving the height adjustment bolt 10 up and down. A lifting base 12 is fixedly connected to the end of the height adjustment bolt 10 away from the adjusting head 11. An adjusting rubber pad 13 is provided between the lifting base 12 and the bottom of the track 5. A reinforcing rib 14, triangular in shape, is provided at the bottom of the lifting base 12. The up and down movement of the height adjustment bolt 10 can drive the up and down movement of the lifting base 12. This allows for height adjustment of the track 5. To ensure the strength of the raised base 12, a triangular reinforcing rib 14 is installed at the bottom to guarantee the load-bearing strength of the raised base 12. An adjusting rubber pad 13 is installed between the raised base 12 and the track 5 to provide cushioning and shock absorption. Multiple thicknesses of the adjusting rubber pad 13 are available to facilitate selection of the appropriate thickness. A filling pad 15 is installed at the bottom of the adjusting groove 8, located at the bottom of the reinforcing rib 14. A track groove 16 is opened at the bottom of the adjusting groove 8. A track insert 17 is installed at the bottom of the filling pad 15, which can move into the track groove 16. This device addresses the issue that when the adjusting bolt 10 moves the raised base 12 upwards, the bottom of the raised base 12 lacks support, and all the force is borne by the adjusting bolt 10, which can easily cause deformation. Therefore, a filling pad 15 is installed to fill the gap. The insert and track groove 16 facilitate the insertion of the filling pad 15.

[0033] The bottom of the insulating block 6 is fixedly connected to a top block 18 that is in contact with the lifting base 12. A limiting groove 19 is provided on the side wall of the pressing groove 4. A slider 20 is slidably arranged inside the limiting groove 19. The slider 20 is fixedly connected to the side of the insulating block 6. The setting of the limiting groove 19 and the slider 20 ensures that the upward moving insulating block 6 will not fall out of the pressing groove 4, and at the same time ensures that the upward movement of the insulating block 6 is more stable.

[0034] The raised base 12 has several slots 21 on its surface. The bottom of the adjusting rubber pad 13 is provided with a locking strip 22 that corresponds to the slots 21. The top blocks 18 are located on both sides of the adjusting rubber pad 13. The slots 21 and the adjusting rubber pad 13 ensure a stable connection between the adjusting rubber pad 13 and the raised base 12, preventing slippage and detachment. At the same time, the top blocks 18 on both sides can also suppress the deformation of the adjusting rubber pad 13, preventing excessive deformation under stress.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A height-adjusting fastener device for steel rails, characterized in that: Includes a base (1), on which anchor bolts (2) are symmetrically arranged, and on which flat pads (3) are fitted; The base (1) is provided with a pressing groove (4), and the pressing groove (4) is symmetrically provided with insulating blocks (6) pressing on the track (5). The bottom of the flat pad (3) is fitted with a spring strip (7) for pressing the insulating block (6). The bottom of the pressing groove (4) is provided with an adjustment groove (8), and the adjustment groove (8) is provided with a height adjustment component.

2. The rail height adjustment fastener device according to claim 1, characterized in that: The height adjustment component includes a threaded sleeve (9) pre-embedded inside the base (1), and a height adjustment bolt (10) is rotatably arranged inside the threaded sleeve (9). An adjustment head (11) is fixedly arranged at the bottom of the base (1) of the height adjustment bolt (10), and a lifting base (12) is fixedly connected to one end of the height adjustment bolt (10) away from the adjustment head (11). An adjusting rubber pad (13) is provided between the bottom of the raised base (12) and the track (5).

3. The rail height adjustment fastener device according to claim 2, characterized in that: The bottom of the raised base (12) is provided with a reinforcing rib (14), which is triangular in shape.

4. The rail height adjustment fastener device according to claim 3, characterized in that: The adjustment groove (8) is provided with a filling pad (15) at the bottom of the reinforcing rib (14), and a track groove (16) is provided at the bottom of the adjustment groove (8). A track insert (17) is provided at the bottom of the filling pad (15) and can move into the track groove (16).

5. The rail height adjustment fastener device according to claim 3, characterized in that: The bottom of the insulating block (6) is located above the adjustment groove (8) by no less than one-half of the bottom. The bottom of the insulating block (6) is fixedly connected to a top block (18) that is in contact with the lifting base (12). A limiting slide groove (19) is opened on the side wall of the pressing groove (4). A slider (20) is slidably arranged inside the limiting slide groove (19). The slider (20) is fixedly connected to the side of the insulating block (6).

6. The rail height adjustment fastener device according to claim 5, characterized in that: The raised base (12) has several slots (21) on its surface. The bottom of the adjusting rubber pad (13) is provided with a strip (22) that corresponds to the slots (21). The top block (18) is located on both sides of the adjusting rubber pad (13).

7. The rail height adjustment fastener device according to claim 1, characterized in that: The base (1) is provided with a spring groove (23).

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