Subway track damping and noise reduction connecting structure

Abstract

This utility model relates to the field of subway track connection technology, specifically a subway track vibration reduction and noise reduction connection structure, including a buffer base. Two rectangular blocks are slidably connected to the inner wall of the buffer base. A damper is fixedly connected to the inner wall of each of the two rectangular blocks. A connecting plate is fixedly connected to the other end of each damper. A buffer spring is fitted onto the surface of the damper. Both ends of the buffer spring are fixedly connected to the rectangular blocks and the connecting plate, respectively. A connecting rod is fixedly connected to the upper surface of the connecting plate. A limit seat is installed at the other end of the connecting rod. Clamping plates are installed on both sides of the limit seat. A buffer pad is glued to the side of the clamping plate closest to the limit seat. A top plate is installed on the upper surface of the limit seat. This utility model solves the problem that replacing dampers and buffer springs usually requires the entire buffer base to be disassembled, resulting in low efficiency for replacing dampers and buffer springs and increasing the cost of using the fixed vibration reduction structure.

Description

Technical Field

[0001] This utility model relates to the field of subway track connection technology, and in particular to a subway track vibration reduction and noise reduction connection structure. Background Technology

[0002] Subways are an important component of urban rail transit systems. By running underground, they alleviate surface traffic pressure and provide fast, high-capacity public transportation services. Their operation relies on a dedicated track system, and laying subway tracks provides the necessary conditions for subway operation.

[0003] A Chinese patent with publication number CN218345812U discloses a fixed vibration damping structure for subway tracks. The key technical points are: it includes a buffer mechanism, a limiting mechanism, and a track body. The upper side of the buffer mechanism is connected to the limiting mechanism, and the upper side of the limiting mechanism is fixed to the track body. The limiting mechanism includes a limiting seat, a buffer pad, a limiting groove, a limiting block, and a top plate. Buffer pads are embedded in the inner walls of both sides of the limiting seat. Two limiting grooves are opened on the upper surface of the limiting seat, and a limiting block is set on the upper side of the limiting groove. A top plate is connected to the upper side of the limiting block. Its beneficial effects are: by setting the limiting mechanism, when the subway passes on the track, the gap between the limiting block and the limiting groove can buffer part of the forward and backward inertia brought by the subway. The buffer pads on both sides of the limiting seat can buffer the lateral offset force generated during subway operation, effectively reducing the lateral and longitudinal impact force of the limiting seat on the connecting rod, reducing metal fatigue of the connecting rod, and thus extending the service life of the connecting rod.

[0004] Existing technologies often have the following drawbacks: after connecting the subway track to a fixed damping structure, the damping effect on the subway track is reduced due to the long-term and high-frequency use of the dampers and buffer springs. When replacing them, it is usually necessary to disassemble the buffer base as a whole, which results in low efficiency in replacing the dampers and buffer springs and increases the cost of using the fixed damping structure.

[0005] Therefore, this utility model provides a vibration reduction and noise reduction connection structure for subway tracks. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where replacing dampers and buffer springs typically requires the complete disassembly of the buffer base, resulting in low efficiency in replacing dampers and buffer springs and increased costs associated with using fixed shock absorption structures. Therefore, this invention proposes a shock absorption and noise reduction connection structure for subway tracks.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a vibration reduction and noise reduction connection structure for subway tracks, comprising a buffer base, two rectangular blocks slidably connected to the inner wall of the buffer base, dampers fixedly connected to the inner walls of the two rectangular blocks, a connecting plate fixedly connected to the other end of the dampers, a buffer spring sleeved on the surface of the dampers, the two ends of the buffer spring being fixedly connected to the rectangular blocks and the connecting plate respectively, a connecting rod fixedly connected to the upper surface of the connecting plate, a limit seat installed at the other end of the connecting rod, clamps installed on both sides of the limit seat, a buffer pad glued to the side of the clamps near the limit seat, a top plate installed on the upper surface of the limit seat, and two blocking blocks slidably connected to the inner wall of the buffer base, a fixing screw threaded into the inner wall of the two blocking blocks, the fixing screw threaded into the inner wall of the buffer base.

[0008] The effects achieved by the above components are as follows: the rectangular blocks facilitate the disassembly and installation of the damper and buffer spring, making it easy to replace both; the blocking blocks and fixing screws restrict the position of the rectangular blocks.

[0009] Preferably, both sides of the two blocks are fixedly connected with sliding strips, and the side of the buffer base is provided with four first sliding grooves. The sliding strips are slidably connected to the surface of the first sliding grooves on the buffer base. The inner walls of the two blocks are threaded with two connecting screws, and the two connecting screws are threaded into the inner wall of the rectangular block.

[0010] The above components achieve the following effects: the sliding strip facilitates the installation and position restriction of the block, and the connecting screw connects the block and the rectangular block.

[0011] Preferably, two retaining seats are fixedly connected to the side of the limiting seat near the connecting rod, and a retaining plate is slidably connected to the inner wall of each of the two retaining seats, and the retaining plate is fixedly connected to the surface of the connecting rod.

[0012] The effect achieved by the above components is that the connecting rod and the limiting seat can be easily connected and separated through the set card seat and card plate, thereby facilitating the fixing and disassembly of the connecting rod.

[0013] Preferably, the limiting seat has two second sliding grooves on the side near the card plate, and the surfaces of the two second sliding grooves on the limiting seat are slidably connected to sliders, and the lower surface of the sliders is fixedly connected to a blocking plate.

[0014] The above components achieve the following effects: the slider ensures a stable connection between the blocking plate and the limiting seat, and the blocking plate restricts the position of the clamping plate.

[0015] Preferably, a handle is fixedly connected to the side of each of the two blocks away from the rectangular block, a limit rod is slidably connected to the inner wall of the slider, a limit spring is sleeved on the surface of the limit rod, and the two ends of the limit spring are fixedly connected to the slider and the limit seat respectively.

[0016] The effect achieved by the above components is that the limiting rod can limit the position of the limiting spring, and the limiting spring can limit the position of the slider.

[0017] Preferably, the inner wall of the limiting seat is slidably connected to two adjusting plates, both of which are fixedly connected to the clamping plate, and a control plate is fixedly connected to the side of the clamping plate.

[0018] The above components achieve the following effects: the adjustable plate ensures that the clamping plate can move closer to or further away from the limit seat; the control plate controls the movement of the clamping plate, thereby adjusting its position.

[0019] Preferably, a fixing plate is fixedly connected to the side of the limiting seat near the control plate, and a bidirectional screw is rotatably connected to the inner wall of the fixing plate. The bidirectional screw is threaded into the inner wall of the control plate, and a rotating plate is fixedly connected to both ends of the bidirectional screw.

[0020] The effect achieved by the above components is as follows: the rotating plate can be used to easily control the rotation of the bidirectional screw, while ensuring the connection between the bidirectional screw and the control board. The position of the control board can be adjusted through the bidirectional screw.

[0021] In summary:

[0022] 1. In this utility model, by setting a blocking block, a rectangular block, a clamping plate, and a clamping seat, when it is necessary to replace the damper and the buffer spring, the rectangular block can be disassembled and then the rectangular block with the high-performance damper and buffer spring installed can be installed, which improves the efficiency of replacing the damper and the buffer spring and reduces the replacement cost.

[0023] 2. In this utility model, the position of the clamping plate can be adjusted during the process of connecting the top plate to the limiting seat by the setting adjustment plate. After the installation of the top plate is completed, the clamping plate is moved closer to the top plate by the bidirectional screw and the control plate, thereby avoiding as much as possible the impact on the efficiency and effect of the top plate installation due to the friction between the buffer pad and the top plate during the installation process. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0026] Figure 3 This utility model Figure 1 Enlarged view of point A;

[0027] Figure 4 This utility model Figure 2 Enlarged view of point B;

[0028] Figure 5 This utility model Figure 1 A partial structural diagram.

[0029] Legend: 1. Buffer base; 2. Damper; 3. Connecting plate; 4. Connecting rod; 5. Buffer spring; 6. Limit seat; 7. Clamping plate; 8. Buffer pad; 9. Top plate; 10. Rectangular block; 11. Block; 12. Slide bar; 13. Handle; 14. Connecting screw; 15. Card seat; 16. Card plate; 17. Blocking plate; 18. Slider; 19. Limit rod; 20. Limit spring; 21. Adjusting plate; 22. Fixing plate; 23. Bidirectional screw; 24. Control plate; 25. Rotating plate; 26. Fixing screw. Detailed Implementation

[0030] Reference Figures 1-3 As shown, this utility model provides a technical solution: a vibration reduction and noise reduction connection structure for subway tracks, including a buffer base 1. Two rectangular blocks 10 are slidably connected to the inner wall of the buffer base 1. A damper 2 is fixedly connected to the inner wall of each of the two rectangular blocks 10. A connecting plate 3 is fixedly connected to the other end of the damper 2. A buffer spring 5 is sleeved on the surface of the damper 2. The two ends of the buffer spring 5 are fixedly connected to the rectangular blocks 10 and the connecting plate 3 respectively. A connecting rod 4 is fixedly connected to the upper surface of the connecting plate 3. A limit seat 6 is installed at the other end of the connecting rod 4. Clamping plates 7 are installed on both sides of the limit seat 6. A buffer pad 8 is glued to the side of the clamping plate 7 near the limit seat 6. A top plate 9 is installed on the upper surface of the limit seat 6. Two blocking blocks 11 are slidably connected to the inner wall of the buffer base 1. A fixing screw 26 is threaded into the inner wall of each of the two blocking blocks 11. The fixing screw 26 is threaded into the inner wall of the buffer base 1. The rectangular block 10 allows for easy disassembly and installation of the damper 2 and the buffer spring 5, facilitating their replacement. The blocking block 11 and the fixing screw 26 restrict the position of the rectangular block 10.

[0031] The following is a detailed explanation of its overall setup and function.

[0032] Reference Figures 1-5As shown in this embodiment: Sliding strips 12 are fixedly connected to both sides of the two blocking blocks 11. Four first sliding grooves are provided on the side of the buffer base 1. The sliding strips 12 are slidably connected to the surface of the first sliding grooves on the buffer base 1. Two connecting screws 14 are threaded into the inner walls of the two blocking blocks 11, and the two connecting screws 14 are threaded into the inner wall of the rectangular block 10. The sliding strips 12 facilitate the installation and position restriction of the blocking blocks 11, and the connecting screws 14 connect the blocking blocks 11 and the rectangular block 10. Two retaining seats 15 are fixedly connected to the side of the limiting seat 6 near the connecting rod 4. A retaining plate 16 is slidably connected to the inner wall of each retaining seat 15, and the retaining plate 16 is fixedly connected to the surface of the connecting rod 4. The retaining seats 15 and retaining plates 16 facilitate the connection and separation of the connecting rod 4 and the limiting seat 6, thereby facilitating the fixing and disassembly of the connecting rod 4. Two second sliding grooves are formed on the side of the limiting seat 6 near the clamping plate 16. Slider 18s are slidably connected to the surfaces of the second sliding grooves on both limiting seats 6. A blocking plate 17 is fixedly connected to the lower surface of the slider 18. The slider 18 ensures a stable connection between the blocking plate 17 and the limiting seat 6, and restricts the position of the clamping plate 16. A handle 13 is fixedly connected to the side of each of the two blocking blocks 11 away from the rectangular block 10. A limiting rod 19 is slidably connected to the inner wall of the slider 18. A limiting spring 20 is fitted onto the surface of the limiting rod 19, and both ends of the limiting spring 20 are fixedly connected to the slider 18 and the limiting seat 6, respectively. The limiting rod 19 restricts the position of the limiting spring 20, thus limiting the position of the slider 18.

[0033] Two adjusting plates 21 are slidably connected to the inner wall of the limiting seat 6. Both adjusting plates 21 are fixedly connected to the clamping plate 7. A control plate 24 is fixedly connected to the side of the clamping plate 7. The adjusting plates 21 ensure that the clamping plate 7 can move closer to or further away from the limiting seat 6. The control plate 24 controls the movement of the clamping plate 7, allowing for position adjustment. A fixing plate 22 is fixedly connected to the side of the limiting seat 6 closest to the control plate 24. A bidirectional screw 23 is rotatably connected to the inner wall of the fixing plate 22. The bidirectional screw 23 is threaded into the inner wall of the control plate 24. Rotating plates 25 are fixedly connected to both ends of the bidirectional screw 23. The rotating plates 25 facilitate the rotation of the bidirectional screw 23 while ensuring the connection between the bidirectional screw 23 and the control plate 24. The position of the control plate 24 can be adjusted using the bidirectional screw 23.

[0034] Working principle: When the damper 2 and buffer spring 5 need to be replaced, rotate the connecting screw 14 away from the rectangular block 10, grasp the handle 13, and control the block 11 to drive the slide bar 12 to slide on the first groove surface on the buffer base 1, so that the block 11 moves away from the rectangular block 10. Move the blocking plate 17 to drive the slider 18 to slide on the surface of the limit rod 19, so that the blocking plate 17 moves away from the connecting rod 4. Then remove the rectangular block 10, and move the rectangular block 10 with the high-performance damper 2 and buffer spring 5 closer to the buffer base 1, so that the locking plate 16 is locked into the locking seat 15. Release the blocking plate 17, and under the action of the elastic force of the limit spring 20, the blocking plate 17 moves closer to the locking plate 16, restricting the position of the connecting rod 4. Move the block 11 closer to the locking plate 16. The rectangular block 10 is connected to the block 11 via the connecting screw 14. The block 11 is connected to the buffer base 1 via the fixing screw 26, thus completing the replacement of the damper 2 and the buffer spring 5. When installing the top plate 9 onto the limit seat 6, first rotate the rotating plate 25 to drive the bidirectional screw 23 to rotate, so that the bidirectional screw 23 rotates on the inner wall of the fixing plate 22. At this time, the adjusting plate 21 slides on the inner wall of the limit seat 6, so that the clamping plate 7 and the buffer pad 8 move away from the limit seat 6. Then, install the top plate 9 onto the limit seat 6, rotate the rotating plate 25, so that the control plate 24 drives the clamping plate 7 to move closer to the top plate 9, thus completing the installation of the top plate 9. The buffer spring 5, the connecting rod 4 and the rectangular block 10 can be connected via the connecting plate 3. By using the blocking block 11, rectangular block 10, clamping plate 16, and clamping seat 15, when it is necessary to replace the damper 2 and the buffer spring 5, the rectangular block 10 can be disassembled and then the rectangular block 10 with the high-performance damper 2 and buffer spring 5 installed can be installed. This improves the efficiency of replacing the damper 2 and buffer spring 5 and reduces the replacement cost. By using the adjusting plate 21, the position of the clamping plate 7 can be adjusted during the process of connecting the top plate 9 to the limit seat 6. After the installation of the top plate 9 is completed, the clamping plate 7 is moved closer to the top plate 9 by using the bidirectional screw 23 and the control plate 24. This minimizes the impact of friction between the buffer pad 8 and the top plate 9 on the efficiency and effect of the installation of the top plate 9.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A vibration damping and noise reduction connection structure for subway tracks, comprising a buffer base (1), characterized in that: The inner wall of the buffer base (1) is slidably connected to two rectangular blocks (10). A damper (2) is fixedly connected to the inner wall of each of the two rectangular blocks (10). A connecting plate (3) is fixedly connected to the other end of each damper (2). A buffer spring (5) is fitted onto the surface of the damper (2). Both ends of the buffer spring (5) are fixedly connected to the rectangular blocks (10) and the connecting plate (3), respectively. A connecting rod (4) is fixedly connected to the upper surface of the connecting plate (3). The other end of the buffer base (1) is equipped with a limiting seat (6), and clamps (7) are installed on both sides of the limiting seat (6). A buffer pad (8) is glued to the side of the clamps (7) near the limiting seat (6). A top plate (9) is installed on the upper surface of the limiting seat (6). Two blocking blocks (11) are slidably connected to the inner wall of the buffer base (1). A fixing screw (26) is threaded into the inner wall of both blocking blocks (11). The fixing screw (26) is threaded into the inner wall of the buffer base (1).

2. The subway track vibration reduction and noise reduction connection structure according to claim 1, characterized in that: Both sides of the two blocking blocks (11) are fixedly connected with sliding strips (12). The side of the buffer base (1) is provided with four first sliding grooves. The sliding strips (12) are slidably connected to the surface of the first sliding grooves on the buffer base (1). The inner walls of the two blocking blocks (11) are threaded with two connecting screws (14). The two connecting screws (14) are threaded into the inner wall of the rectangular block (10).

3. The subway track vibration reduction and noise reduction connection structure according to claim 1, characterized in that: The limiting seat (6) has two card seats (15) fixedly connected to the side near the connecting rod (4). The inner walls of the two card seats (15) are slidably connected with card plates (16), and the card plates (16) are fixedly connected to the surface of the connecting rod (4).

4. The subway track vibration damping and noise reduction connection structure according to claim 3, characterized in that: Two second sliding grooves are provided on the side of the limiting seat (6) near the card plate (16). The surfaces of the two second sliding grooves on the limiting seat (6) are slidably connected to sliders (18), and the lower surface of the sliders (18) is fixedly connected to a blocking plate (17).

5. The subway track vibration damping and noise reduction connection structure according to claim 4, characterized in that: Both of the two blocking blocks (11) are fixedly connected to a handle (13) on the side away from the rectangular block (10). The inner wall of the slider (18) is slidably connected to a limit rod (19). The surface of the limit rod (19) is fitted with a limit spring (20). The two ends of the limit spring (20) are fixedly connected to the slider (18) and the limit seat (6) respectively.

6. The subway track vibration reduction and noise reduction connection structure according to claim 1, characterized in that: The inner wall of the limiting seat (6) is slidably connected to two adjusting plates (21), both adjusting plates (21) are fixedly connected to the clamping plate (7), and the side of the clamping plate (7) is fixedly connected to a control plate (24).

7. The subway track vibration damping and noise reduction connection structure according to claim 6, characterized in that: The limiting seat (6) is fixedly connected to a fixing plate (22) on the side near the control plate (24). The inner wall of the fixing plate (22) is rotatably connected to a bidirectional screw (23). The bidirectional screw (23) is threaded into the inner wall of the control plate (24). Both ends of the bidirectional screw (23) are fixedly connected to rotating plates (25).

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