High damping fastener device for urban rail transit

Abstract

The application belongs to the field of rail transit technology, and particularly relates to a high-damping fastener device for urban rail transit. The high-damping fastener device comprises a pad assembly, a distance adjusting block and a water guide assembly. The pad assembly is installed on a sleeper, and a rail is arranged on the pad assembly. The distance adjusting block is provided with two, and the two distance adjusting blocks are respectively buckled on the left and right sides of the rail. The water guide assembly is connected with the distance adjusting block and is used for guiding water flow away from the rail. By arranging the water guide assembly on the distance adjusting block, when it rains, the water guide assembly can collect the rainwater falling on the rail and discharge the rainwater to a position away from the rail, so that the rainwater containing conductive substances can be prevented from penetrating between the rail and the pad assembly, thereby preventing the current from leaking into the ground to form a stray current, reducing the serious current corrosion effect on the subway hole body steel structure, buried metal components and pipeline facilities, and being beneficial to ensuring the safety of the building facilities.

Description

Technical Field

[0001] This invention belongs to the field of rail transit technology, and specifically relates to a high-grade vibration damping fastener device for urban rail transit. Background Technology

[0002] With the rapid development of rail transit, issues such as unstable vehicle operation and noise generation have attracted increasing attention. Current technologies typically employ vibration-damping fasteners to absorb vibrations, maintain vehicle stability, and reduce noise. However, in DC-electric transportation systems such as urban subways and light rails, where rails are used as return lines, current rail installation techniques cannot achieve complete insulation from the ground. Some current inevitably leaks into the ground, forming stray currents that severely corrode the subway tunnel's steel reinforcement, buried metal components, and pipelines, endangering the safety of these structures. Especially during rainy weather, rainwater containing conductive substances can flow between the rails and the base plates, easily creating a conductive path for stray currents to enter the ground. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a high-grade vibration damping fastener device for urban rail transit, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A high-grade vibration damping fastener device for urban rail transit, applied to railway sleepers, includes:

[0006] A pad assembly is mounted on the sleeper, and a rail is set on the pad assembly;

[0007] Adjusting blocks, two of which are respectively fastened to the left and right sides of the rail;

[0008] A water diversion assembly, which is connected to the adjusting block and is used to guide water flow away from the rail.

[0009] Furthermore, the water intake assembly includes:

[0010] A water hopper, the lower end of which is connected to the adjusting block, the upper end of which extends toward the side close to the rail, and a water trough with an opening at the top is provided on the water hopper;

[0011] A drainage channel is connected to the pad assembly and located on one side of the rail. The drainage channel extends in the front-to-back direction and has openings at both ends. A drainage trough with an upper opening is provided on the drainage channel, and the lower end of the water collection trough is used to communicate with the drainage trough.

[0012] Furthermore, the bottom surface of the drainage trough gradually decreases in height as it extends from the middle to the ends.

[0013] Furthermore, the water intake assembly also includes:

[0014] A water intake channel is provided, the upper end of which is connected to the lower end of the water hopper, and the lower end of which extends above the drainage trough. A water intake trough is provided inside the water intake channel, and the water intake trough is inclined downward. The upper end of the water intake trough is connected to the water trough, and the lower end of the water intake trough is used to connect to the drainage trough.

[0015] Furthermore, the pad assembly includes:

[0016] Vibration damping pad, the vibration damping pad being located at the lower end of the rail;

[0017] The vibration damping pad has multiple grooves, which are spaced apart in the left-right direction and all have their axial direction facing the front-back direction.

[0018] A connecting groove is provided on the vibration damping pad, extending in the left-right direction. The height of the connecting groove gradually decreases as it extends from one end to the other. The end of the connecting groove with the greater height passes through multiple sliding grooves in sequence. The other end of the connecting groove is used to connect with the drainage channel.

[0019] Furthermore, the pad assembly also includes:

[0020] A slider, which is disposed within the slide groove and slidably connected to the slide groove in the front-back direction;

[0021] A handle, which is connected to the slider and located outside the groove.

[0022] Furthermore, the pad assembly also includes:

[0023] An elastic element is installed in the slide groove to drive the slider to reset.

[0024] Furthermore, the pad assembly also includes:

[0025] The baffle, the handle includes a connecting rod and a push block, one end of the connecting rod is connected to the slider, the other end of the connecting rod is connected to the push block, one end of the baffle is connected to the push block, and the other end of the baffle is located on the side of the adjacent push block near the slide groove.

[0026] Furthermore, the vibration damping pad also includes:

[0027] An adjustable pad is located at the lower end of the vibration damping pad.

[0028] A slide rail that extends in the vertical direction;

[0029] A snap-fit ​​connector, the lower end of which is slidably connected to the slide rail, and the upper end of which is used to connect to the push block.

[0030] The technical effects and advantages of this invention are as follows:

[0031] 1. By installing water diversion components on the adjustable gap blocks, rainwater falling on the rails can be collected and discharged to a location far away from the rails. This can prevent rainwater containing conductive substances from seeping between the rails and the pad assembly, which helps reduce the effects of electric current corrosion and ensures the safety of the building facilities.

[0032] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the structure of a high-grade vibration damping fastener device for urban rail transit according to an embodiment of the present invention is shown;

[0035] Figure 2 A schematic diagram of the pad assembly according to an embodiment of the present invention is shown;

[0036] Figure 3 It shows Figure 2 Enlarged view of region A in the middle;

[0037] Figure 4 It shows Figure 2 Cross-sectional view along the BB direction;

[0038] Figure 5 It shows Figure 4 Enlarged view of region C in the middle;

[0039] Figure 6 A schematic diagram of the pad assembly according to another perspective of an embodiment of the present invention is shown;

[0040] Figure 7 It shows Figure 6 A magnified view of region D in the middle.

[0041] In the diagram: 1. Sleeper; 2. Pad assembly; 3. Adjustable block; 4. Water diversion assembly; 5. Mounting bolt; 6. Connecting seat; 7. Spring clip; 8. Water hopper; 9. Drainage channel; 10. Water trough; 11. Ramp; 12. Water diversion channel; 13. Vibration damping pad; 14. Slide groove; 15. Connecting groove; 16. Drainage pipe; 17. Slider; 18. Handle; 19. Elastic element; 20. Positioning plate; 21. Spring; 22. Baffle; 23. Connecting rod; 24. Push block; 25. Height adjustment pad; 26. Slide rail; 27. Clip-on component; 28. Iron pad; 29. ​​Sliding block; 30. Clip-on post; 31. Rail. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] The positive X-axis points forward, and the negative X-axis points backward; the positive Y-axis points left, and the negative Y-axis points right; the positive Z-axis points upward, and the negative Z-axis points downward.

[0044] like Figures 1 to 4 as well as Figure 6As shown in the figure, the advanced vibration damping fastener device for urban rail transit according to an embodiment of the present invention is applied to sleeper 1. The advanced vibration damping fastener device for urban rail transit includes a pad assembly 2, an adjusting block 3, a water-draining assembly 4, mounting bolts 5, connecting seats 6, and elastic strips 7. The pad assembly 2 includes a vibration damping pad 13, an adjusting pad 25, and an iron pad 28. The vibration damping pad 13 can be made of rubber material. An mounting bolt 5 is provided on each of the left and right sides of the iron pad 28, and the iron pad 28 is installed on the sleeper 1 by the mounting bolts 5. The rail 31 is set on the vibration damping pad 13. Two adjusting blocks 3 are provided, and the two adjusting blocks 3 are respectively fastened to the left and right sides of the rail 31. A connecting seat 6 is provided on each of the left and right sides of the rail 31, and an elastic strip 7 is connected to each connecting seat 6. The elastic strip 7 is fastened to the adjusting block 3, so that the elastic strip 7 can absorb the vibration generated by the vehicle during the movement of the vehicle on the rail 31, thereby reducing vehicle vibration and noise. Secondly, by setting a water-diverting component 4 on the adjustable block 3, when it rains, the water-diverting component 4 can collect the rainwater falling on the rail 31 and discharge the rainwater to a location away from the rail 31. This can prevent rainwater containing conductive substances from seeping between the rail 31 and the pad assembly 2, thereby preventing current leakage into the ground and forming stray current. This reduces the serious current corrosion effect on the subway tunnel steel structure, buried metal components and pipeline facilities, which is conducive to ensuring the safety of the building facilities.

[0045] In this embodiment, two adjusting blocks 3 are located in the middle of the vibration damping pad 13 and are used to clamp the left and right sides of the rail 31 mounted on the vibration damping pad 13. On the iron pad 28 on the left side of the rail 31, the connecting seat 6 is located in front of the mounting bolt 5, and on the iron pad 28 on the right side of the rail 31, the connecting seat 6 is located behind the mounting bolt 5.

[0046] Optionally, such as Figure 1 , Figure 4 as well as Figure 5As shown, to ensure the effectiveness of the water diversion assembly 4 in collecting and draining rainwater, the water diversion assembly 4 includes a water collection hopper 8 and a drainage channel 9. The lower end of the water collection hopper 8 is connected to the adjusting block 3, and the upper end of the water collection hopper 8 extends towards the side close to the rail 31. The water collection hopper 8 is located above the rail foot of the rail 31. The water collection hopper 8 has a water collection trough 10 with an opening at the top. Specifically, when the water collection trough 10 is shallow, heavy rain may cause rainwater to flow out from the edge of the water collection trough 10 and fall onto the rail 31. By recessing the bottom of the water collection trough 10 downwards, more rainwater can be collected, and there is still enough space to collect rainwater even when the rain is heavy, thereby preventing rainwater leakage. The drainage channel 9 is connected to the pad assembly 2 and located on one side of the rail 31. Specifically, the drainage channel 9 is elongated and extends in the front-to-back direction. The front and rear ends of the drainage channel 9 are located on the outer sides of the front and rear ends of the pad assembly 2, respectively. The drainage channel 9 has a drainage trough with an opening at the top and openings at both ends. The lower end of the water collection trough 10 is used to communicate with the drainage trough. The water collection trough 10 collects rainwater falling on the rail 31 on one side, and the rainwater slides along the bottom surface of the water collection trough 10 due to gravity on the other side, and slides from the lower end of the water collection trough 10 to the top of the drainage trough, thus falling into the drainage trough and being discharged from the front and rear ends of the drainage trough. This allows the rainwater to stay away from the rail 31, thereby ensuring the effect of the water diversion assembly 4 in collecting and discharging rainwater.

[0047] In this embodiment, two drainage channels 9 and two water collection hoppers 8 can be provided. Specifically, one drainage channel 9 is provided on the left side of the iron pad 28, and a water collection hopper 8 is connected to the left-side adjusting block 3; another drainage channel 9 is provided on the right side of the iron pad 28, and another water collection hopper 8 is connected to the right-side adjusting block 3, thus corresponding the water collection hoppers 8 to the drainage channels 9 on the same side. Therefore, by connecting water collection hoppers 8 to both the left and right adjusting blocks 3, rainwater from both sides of the rail 31 can be collected using the two water collection hoppers 8, and by providing drainage channels 9 on both sides of the iron pad 28, rainwater from the two water collection hoppers 8 can be discharged to the front and rear sides of the rail 31.

[0048] Optionally, such as Figure 1 and Figure 2As shown, to prevent excessive water accumulation on the front or rear side of rail 31, the bottom surface of the drainage ditch gradually decreases in height from the middle to the ends, with the height at the middle of the bottom surface being greater than the height at both ends. For example, the bottom surface of the drainage ditch can be set to gradually decrease in height from front to back. In this case, water in the drainage channel 9 will drain towards the rear opening of the drainage ditch under the influence of gravity, meaning rainwater will concentrate at the rear of rail 31 and easily lead to excessive water accumulation there. Similarly, the bottom surface of the drainage ditch can be set to gradually decrease in height from back to front. In this case, water in the drainage channel 9 will drain towards the front opening of the drainage ditch under the influence of gravity, meaning rainwater will concentrate at the front of rail 31 and easily lead to excessive water accumulation there. When excessive water accumulation leads to a high water level, rainwater can easily seep between rail 31 and the elastic pad. By setting the bottom of the drainage ditch to have a height greater in the middle than at the front and rear ends, thus forming two slopes 11, rainwater can flow along the slopes 11. On the other hand, it can also facilitate the even flow of rainwater in the drainage ditch to the front and rear sides, which helps to avoid the accumulation of rainwater in the front or rear of the rail 31.

[0049] Optionally, such as Figure 1 and Figure 5 As shown, due to space limitations, the water collection hopper 8 is often difficult to connect directly to the drainage channel 9. Therefore, rainwater in the water collection trough 10 cannot accurately flow into the drainage trough. To facilitate the accurate introduction of rainwater from the water collection trough 10 into the drainage trough, the water guiding assembly 4 also includes a water guiding channel 12. The upper end of the water guiding channel 12 is connected to the lower end of the water collection hopper 8. Specifically, the water guiding channel 12 can be bolted or glued to the water collection hopper 8. The lower end of the water guiding channel 12 extends above the drainage trough. A water guiding channel is formed within the water guiding channel 12, and the water guiding channel is inclined downwards. The upper end of the water guiding channel is connected to the water collection trough 10. Thus, under the influence of gravity, rainwater in the water collection trough 10 can flow into the drainage trough only through the water guiding channel, which helps to limit the flow trajectory of the rainwater and prevent rainwater leakage.

[0050] In this embodiment, a water channel 12 can be provided, which is bolted or glued to the lower middle of the water hopper 8. The lower end of the water channel 12 is aligned with the middle of the drainage trough, allowing rainwater in the water hopper 10 to enter the middle of the drainage trough through the water channel 12, ensuring a uniform flow of rainwater to both the front and rear sides. Alternatively, two water channels 12 can be provided, corresponding to the front and rear sides of the drainage trough respectively. These two water channels 12 then respectively introduce water from the water hopper 10 into the front and rear sides of the drainage trough, also ensuring a uniform flow of rainwater to both the front and rear sides.

[0051] Optionally, such as Figure 2 , Figure 3 as well as Figure 5 As shown, when rainwater or other accumulated water has seeped between the rail 31 and the vibration damping pad 13, in order to remove the rainwater between the rail 31 and the vibration damping pad 13, the pad assembly 2 includes a vibration damping pad 13, a sliding groove 14, and a connecting groove 15. The vibration damping pad 13 is located at the lower end of the rail 31. Multiple sliding grooves 14 are provided on the vibration damping pad 13. The sliding grooves 14 are cylindrical grooves with open tops, allowing rainwater between the rail 31 and the vibration damping pad 13 to flow along the inner wall of the sliding grooves 14 under the influence of gravity. The multiple sliding grooves 14 are spaced apart in the left-right direction, and their axial directions are all towards the front-back direction. The vibration damping pad 13 has a connecting groove 15. A connecting trough 15 extends in a left-right direction. The height of the connecting trough 15 gradually decreases as it extends from the left end to the right end; specifically, the height of the left end of the connecting trough 15 is greater than the height of the right end. The left end of the connecting trough 15 passes through multiple sliding troughs 14 in sequence, allowing rainwater to flow gradually from the higher sliding troughs 14 to the lower sliding troughs 14. A drainage pipe 16 is connected to the right end of the connecting trough 15. The drainage pipe 16 slopes downwards, with its lower end positioned above the drainage trough and connected to it. When rainwater flows to the rightmost sliding trough 14, it then enters the right-side drainage trough through the drainage pipe 16, facilitating the drainage of rainwater between the rail 31 and the vibration-damping pad 13. Therefore, by providing multiple sliding troughs 14 and connecting troughs 15, it is convenient to drain rainwater or other accumulated water between the rail 31 and the vibration-damping pad 13.

[0052] In this embodiment, multiple grooves 14 are distributed at equal intervals along the left-right direction. The connecting groove 15 is located in the middle of the vibration damping pad 13, and the right end of the connecting groove 15 passes through the vibration damping pad 13 and slopes downward.

[0053] Optionally, such as Figure 3As shown, to facilitate the removal of rainwater or accumulated water from the chute 14, the pad assembly 2 also includes a slider 17 and a handle 18. The slider 17 is disposed within the chute 14 and slidably connected to the chute 14 in the front-to-back direction. Specifically, by moving the slider 17 within the chute 14, rainwater within the chute 14 can be squeezed towards the connecting channel 15. The connecting channel 15 connects multiple chute 14s, allowing rainwater to enter adjacent chute 14s through the connecting channel 15. By pushing the slider 17 in different chute 14s sequentially from high to low in the connecting channel 15 (i.e., from left to right), rainwater enters the chute 14 with the lowest height on the right and then flows into the drainage channel through the drainage pipe 16. The handle 18 is connected to the slider 17 and located outside the slide groove 14. Since the space of the slide groove 14 is limited, it is difficult for the staff to reach into the slide groove 14 to push the slider 17. However, by setting the handle 18 to be connected to the slider 17 and setting the handle 18 outside the slide groove 14, it is easier for the staff to access the handle 18, which is beneficial for pushing the slider 17 and pulling the slider 17 to reset.

[0054] In this embodiment, the slider 17 is configured as a columnar structure with the same shape as the chute 14, specifically, a cylindrical structure with a flat upper surface. Slider 17 is provided on both the front and rear sides of the chute 14. The movement of the two sliders 17 within the chute 14 facilitates the movement of rainwater within the chute 14 towards the central connecting channel 15.

[0055] Optionally, such as Figure 3 As shown, to reduce the burden on workers, the pad assembly 2 also includes an elastic element 19, which is installed in the slide groove 14 and used to drive the slider 17 to reset. Specifically, the elastic element 19 is installed in the middle of the slide groove 14. When the slider 17 moves to the elastic element 19 in the slide groove 14, the elastic element 19 pushes the slider 17 to move in the opposite direction to reset.

[0056] In this embodiment, the elastic element 19 includes a positioning plate 20 and a spring 21. The positioning plate 20 is located within the slide groove 14 and connected to the inner wall of the slide groove 14. Specifically, the positioning plate 20 is disc-shaped with a flat upper surface. Two springs 21 are provided, each connected to the positioning plate 20 in a front-to-back linkage manner. The springs 21 are coaxially distributed with the slide groove 14. Two sliders 17 abut against the two springs 21 respectively. When both sliders 17 move towards the center within the slide groove 14 (i.e., the front slider 17 moves backward and the rear slider 17 moves forward), the front slider 17 compresses the front spring 21, and the rear slider 17 compresses the rear spring 21. After the thrust on the front and rear sliders 17 is released, the front spring 21 extends and pushes the front slider 17 forward until it returns to its original position, and the rear spring 21 extends and pushes the rear slider 17 backward until it returns to its original position.

[0057] Optionally, such as Figure 3 and Figure 7 As shown, to prevent accidental activation of the handle 18 and pushing rainwater or accumulated water in the chute 14 away from the drainage pipe 16, the pad assembly 2 also includes a baffle 22. The handle 18 includes a connecting rod 23 and a pushing block 24. The connecting rod 23 is cylindrical, and the pushing block 24 is disc-shaped with a flat upper surface. Specifically, on the front side of the chute 14, the rear end of the front connecting rod 23 is connected to the front slider 17, and the front end is connected to the front pushing block 24; on the rear side of the chute 14, the front end of the rear connecting rod 23 is connected to the rear slider 17, and the rear end is connected to the rear pushing block 24. Since there are multiple chute 14s from left to right, starting from left to right, the pushing block 24 is connected to a baffle 22. Specifically, on the front side of the chute 14, the baffle 22 is located behind the adjacent right-side pushing block 24, and on the rear side of the chute 14, the baffle 22 is located in front of the adjacent right-side pushing block 24. Pushing the push block 24 sequentially from left to right is less strenuous and facilitates the movement of rainwater or accumulated water to the drainage pipe 16. However, pushing the push block 24 sequentially from right to left requires simultaneously pushing the baffle 22, multiple push blocks 24 on the left side, and multiple springs 21 on the left side, which is more strenuous. This design avoids accidentally activating the right push block 24 and pushing the rainwater or accumulated water in the chute 14 away from the drainage pipe 16.

[0058] Optionally, such as Figures 2 to 7 As shown, to prevent the slider 17 from sliding freely within the slide groove 14 and causing wear, the vibration damping pad 13 also includes a height adjustment pad 25, a slide rail 26, a snap-fit ​​component 27, and an iron pad 28. The height adjustment pad 25 is located at the lower end of the vibration damping pad 13 and above the iron pad 28, and can be used to raise the rail 31. The iron pad 28 is assembled onto the sleeper 1 by mounting bolts 5. The slide rail 26 extends vertically. The lower end of the snap-fit ​​component 27 is slidably connected to the slide rail 26, and the shape and size of the lower end of the snap-fit ​​component 27 match those of the slider 17, so that the lower end of the snap-fit ​​component 27 and the slide rail 26 are interference-fitted. The upper end of the snap-fit ​​component 27 is used to connect with the push block 24, and the lower end of the push block 24 has a slot, and the upper end of the snap-fit ​​component 27 is used to insert into the push block 24. Therefore, by adjusting the position of the lower end of the latch 27 relative to the slide rail 26, the upper end of the latch 27 is connected to the push block 24, so that the slider 17 cannot move forward or backward.

[0059] In this embodiment, a set of slide rails 26 and locking members 27 are provided on both the front and rear sides of the height adjustment pad 25. Specifically, the front locking member 27 is used to connect the front pushing block 24 to limit the front slider 17, and the rear locking member 27 is used to connect the rear pushing block 24 to limit the rear slider 17. Specifically, the locking member 27 includes a sliding block 29 and a locking post 30. The lower end of the baffle 22 is provided with a locking groove. When it is necessary to drive the pushing block 24, the sliding block 29 slides downward in the slide rail 26 until the locking post 30 disengages from the locking groove. When it is not necessary to drive the pushing block 24, the sliding block 29 slides upward in the slide rail 26 until the locking post 30 is inserted into the locking groove.

[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-grade vibration damping fastener device for urban rail transit, applied to sleepers (1), characterized in that, include: A pad assembly (2) is mounted on the sleeper (1), and a rail (31) is used to be mounted on the pad assembly (2); Adjusting block (3), two adjusting blocks (3) are provided, and the two adjusting blocks (3) are respectively fastened to the left and right sides of the rail (31); A water diversion assembly (4) is connected to the adjusting block (3) and is used to guide the water flow away from the rail (31); The water intake assembly (4) includes: Water hopper (8), the lower end of which is connected to the adjusting block (3), the upper end of which extends toward the side close to the rail (31), and a water trough (10) with an upper opening is provided on the water hopper (8); Drainage channel (9), the drainage channel (9) is connected to the pad assembly (2) and located on one side of the rail (31), the drainage channel (9) extends in the front-back direction, the drainage channel (9) has openings at both ends, the drainage channel (9) has a drainage groove with an opening at the top, and the lower end of the water accumulation tank (10) is used to communicate with the drainage groove; The water intake assembly (4) also includes a water intake channel (12), the upper end of which is connected to the lower end of the water hopper (8), the lower end of which extends to the top of the drainage trough, a water intake trough is provided in the water intake channel (12), the water intake trough is inclined downward, the upper end of which is connected to the water trough (10), and the lower end of which is used to connect to the drainage trough; The pad assembly (2) includes a vibration damping pad (13), a chute (14), and a connecting groove (15). The vibration damping pad (13) is located at the lower end of the rail (31). The vibration damping pad (13) has multiple chute (14) on it. The multiple chute (14) are spaced apart in the left and right direction. The axial direction of the multiple chute (14) is facing the front and back direction. The vibration damping pad (13) has a connecting groove (15) extending in the left and right direction. The height of the connecting groove (15) gradually decreases as it extends from one end to the other end. The end of the connecting groove (15) with the larger height passes through multiple chute (14) in sequence. The other end of the connecting groove (15) is used to connect with the drainage channel (9). The pad assembly (2) further includes a slider (17) and a handle (18). The slider (17) is disposed in the slide groove (14) and slidably connected to the slide groove (14) in the front-back direction. The handle (18) is connected to the slider (17) and located outside the slide groove (14). The pad assembly (2) further includes a baffle (22), and the handle (18) includes a connecting rod (23) and a push block (24). One end of the connecting rod (23) is connected to the slider (17), and the other end of the connecting rod (23) is connected to the push block (24). One end of the baffle (22) is connected to the push block (24), and the other end of the baffle (22) is located on the side of the adjacent push block (24) near the slide groove (14).

2. The advanced vibration damping fastener device for urban rail transit according to claim 1, characterized in that, The bottom surface of the drainage trough gradually decreases in height as it extends from the middle to the ends.

3. The advanced vibration damping fastener device for urban rail transit according to claim 1, characterized in that, The pad assembly (2) further includes: An elastic element (19) is installed in the groove (14) to drive the slider (17) to reset.

4. The advanced vibration damping fastener device for urban rail transit according to claim 1, characterized in that, The vibration damping pad (13) also includes: A height adjustment pad (25) is located at the lower end of the vibration damping pad (13); Slide rail (26), which extends in the vertical direction; A snap-fit ​​connector (27) is provided, the lower end of which is slidably connected to the slide rail (26), and the upper end of which is used to connect to the push block (24).

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