Spring damping device for train track
By designing a spring shock-absorbing device for train tracks and using positioning plates and pressure components to stably press and fix the spring bar body, the problem that the existing device cannot be fine-tuned is solved, and the stability and safety of the track are improved.
Patent Information
- Application Number
- CN202422951924.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing spring clip devices for train tracks cannot be fine-tuned, and cannot fully press and limit the spring clip body, resulting in insufficient track stability and safety.
A spring shock-absorbing device for train tracks is designed, which includes a pad, a spring bar body and a fixing bolt. The spring bar body is stably pressed and fixed by a positioning mechanism, a pressing assembly and a locking mechanism on the positioning plate.
It realizes comprehensive and efficient pressing of the spring clip body, ensures the stability and safety of the track, is convenient and practical, and is suitable for spring clip bodies of various positions, shapes and sizes.
Smart Images
Figure CN223458611U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of spring fastener for train track, especially spring damping device for train track. BACKGROUND
[0002] Rail spring is one of the most widely used steel rail fixing key parts, spring not only provides certain pressure and track longitudinal creep resistance for track rail to ensure that the deformation of the rail in the vehicle operation is within its safety range, but also provides the fatigue life of the relative alternating dynamic deformation of the rail under the dynamic load of the vehicle wheel.
[0003] The clamping pressure part of the elastic fastener is mainly spring, which produces clamping pressure on the track through the bending and torsional deformation of the spring, effectively ensures the reliable connection between the rails for a long time, maintains the integrity of the track as much as possible, prevents the longitudinal and transverse movement of the rail relative to the sleeper, ensures the normal gauge, and thus ensures the safe driving of the rail vehicle; The existing limiting plate of the railway spring convenient to install and fasten is welded on the rail clamp, so it cannot be adjusted, the spring body cannot be fully pressed and limited, and therefore a spring damping device for train track which can limit the spring body as a whole is needed. SUMMARY
[0004] The utility model aims at providing spring damping device for train track, clever structure, can comprehensive and efficient spring body press, convenient and practical.
[0005] The utility model discloses a technical scheme for realizing the purpose is: the utility model has the backing plate, the elastic strip body and can be fixed on the backing plate of elastic strip body fixed bolt, be equipped with the positioning plate of the one end of elastic strip body and can be pressed on the backing plate, be equipped with the positioning mechanism of the positioning plate and can be fixed elastic strip body, the positioning mechanism includes the positioning frame of rotation connection on the positioning plate, the first pressure rod of fixed on the positioning frame, the second pressure rod of fixed between the first pressure rod and the positioning frame and with the first pressure rod vertical setting, set up in the first pressure rod and second pressure rod and can be pressed on the pressing assembly of elastic strip body, the positioning frame includes the connection swing lever of rotation connection on both sides of the positioning plate and the connecting rod of connecting each connection swing lever, the first pressure rod and the connecting rod parallelly arranged, the second pressure rod and connection swing lever parallelly arranged, the pressing assembly includes a plurality of adjusting grooves, the adjusting slider of sliding setting in adjusting groove along the extension direction of adjusting groove, the adjusting screw hole of setting on adjusting slider, the adjusting screw rod of setting in adjusting screw hole, the rotary shaft of rotation connection on the lower end of adjusting screw rod, the rotary pressure block of rotation connection on rotary shaft, set up on the rotary pressure block and press the cambered surface, and the lock plate of rotation connection on the connecting rod, the extension direction of each adjusting groove on the first pressure rod and the extension direction of the first pressure rod parallelly arranged, the extension direction of each adjusting groove on the second pressure rod and the extension direction of the second pressure rod perpendicularly arranged, the upper end of each adjusting screw rod is all fixed with adjusting block, the axis of rotary shaft and adjusting screw hole coaxial arrangement, the rotary axis of rotary pressure block and the backing plate parallelly arranged, the rotary axis of each lock plate also with lock plate parallelly arranged, be equipped with locking piece on the lock plate, each rotary pressure block on the first pressure rod and the second pressure rod is pressed on elastic strip body through the sliding fit of adjusting slider and adjusting groove, the thread cooperation of adjusting screw rod and adjusting screw hole, the rotary connection of rotary shaft and adjusting screw rod and the rotary connection of rotary pressure block and rotary shaft, the positioning frame is pressed on elastic strip body through the rotary connection with positioning plate and the pressing of each rotary pressure block on elastic strip body on the backing plate, and is fixed on the backing plate through the locking piece on the lock plate.
[0006] Further, the connecting slot is arranged on the connecting rod, the connecting block is arranged on the lock plate, the connecting shaft is arranged at both ends of the connecting block, the connecting hole is arranged in the connecting slot and matched with the connecting shaft, the lock plate is rotationally connected with the connecting rod through the cooperation of the connecting block and the connecting slot and the cooperation of the connecting shaft and the connecting hole, the locking bolt is arranged at one end of the lock plate away from the connecting block, the locking screw holes matched with the locking bolt are arranged on the backing plate, the locking screw holes are evenly distributed on the side wall of the backing plate in the direction perpendicular to the backing plate, the extension direction of each locking screw hole is parallel to the extension direction of the second pressure rod, and the positioning frame is fixed on the backing plate through the thread cooperation of the locking bolt and any locking screw hole.
[0007] Furthermore, both ends of the above-mentioned adjustment slider are fixed with adjustment slide rods arranged parallel to the extension direction of the adjustment groove, and each adjustment groove is provided with an adjustment slide groove adapted to each adjustment slide rod. Each adjustment slider is connected to the corresponding adjustment groove through the cooperation and sliding of each adjustment slide rod and the corresponding adjustment slide groove.
[0008] Furthermore, the bottom of the above-mentioned adjusting screw is provided with an adjusting rotary hole coaxially arranged with the adjusting screw, and the adjusting rotary hole is provided with a rotating ring groove coaxially arranged with the adjusting rotary hole, and the rotating shaft is provided with a rotating ring block adapted to the rotating ring groove, and the rotating shaft is rotatably connected to the adjusting screw through the cooperation of the rotating ring block and the rotating ring groove, and the lower end of the rotating shaft is provided with a limiting rotary groove, and a limiting rotary shaft is fixedly provided in the limiting rotary groove, and a through hole is provided on the rotating pressure block for the limiting rotary shaft to pass through, and the rotating pressure block is rotatably connected to the rotating shaft through the cooperation of the limiting rotary shaft and the through hole.
[0009] Furthermore, the above-mentioned pad is provided with a sliding groove arranged parallel to the first pressure rod, and the sliding groove extends from one end of the pad to the other end of the pad, and the side wall of the sliding groove away from the elastic bar body is provided with multiple limiting grooves arranged parallel to the extension direction of the second pressure rod. The positioning plate is fixed with a limiting slide rod adapted to each limiting slide groove, and each limiting slide rod is equipped with a reset spring, and the two ends of the reset spring act on the limiting slide rod and the limiting slide groove respectively.
[0010] Furthermore, the above-mentioned base plate is provided with a bottom screw hole connected to the sliding groove, and a bottom screw is arranged in the bottom screw hole. The extension direction of the bottom screw hole is arranged parallel to the second pressure rod. One end of the bottom screw is arranged on the outside of the base plate, and the other end of the bottom screw extends into the limiting sliding groove through the threaded cooperation of the bottom screw hole and the bottom screw and presses the positioning plate.
[0011] The present invention has positive effects: (1) The present invention provides a positioning mechanism on the positioning plate, provides the positioning mechanism as a combination of a first pressure rod, a second pressure rod and a positioning frame, and provides a pressing assembly on the first pressure rod and the second pressure rod. The rotating pressing blocks on the first pressure rod and the second pressure rod are pressed against the elastic bar body through the sliding cooperation between the adjusting slider and the adjusting groove, the threaded cooperation between the adjusting screw and the adjusting screw hole, the rotating connection between the rotating shaft and the adjusting screw, and the rotating connection between the rotating pressing block and the rotating shaft, thereby ensuring stable pressing of elastic bar bodies of various positions, shapes and sizes. It has good adjustability and applicability while also ensuring the stability of the elastic bar body on the pad. The structure is ingenious and convenient and practical.
[0012] (2) The utility model discloses a connecting rotating block is set up on the lock plate, and the lock plate is rotatably connected on the connecting rod through the matching of the connecting rotating block and the connecting rotating groove, and the locking bolt on the lock plate is fixedly connected with the gasket through the matching with the locking screw hole, so that the firmness of the connection between the positioning frame and the gasket and the stability of the pressing on the elastic strip body are ensured, and the utility model discloses high efficiency and convenience.
[0013] (3) The utility model discloses an adjusting sliding rod is set up on the adjusting sliding block, and the adjusting sliding block guarantees the stability and smoothness in the sliding process through the matching of the adjusting sliding rod and the adjusting sliding groove, and the position of the elastic strip body can be adjusted in time, so that the utility model discloses have good practicability, convenient and practical.
[0014] (4) The utility model discloses an adjusting rotating hole is set up at the bottom of the adjusting screw rod, and the rotating pressing block is rotatably connected with the adjusting screw rod through the matching of the rotating ring block and the rotating sliding groove, and is rotatably connected with the rotating shaft through the matching of the limiting rotating shaft and the through hole, so that the rotating pressing plate can be adapted to the elastic strip body at various angles, and the comprehensive and complete pressing on the elastic strip body is ensured, so that the utility model discloses are stable and practical.
[0015] (5) The utility model discloses a sliding through groove is set up on the gasket, a limiting sliding groove is set up on the sliding through groove, and a limiting sliding rod is set up on the positioning plate, and the positioning plate is stably and smoothly slidably connected on the sliding through groove through the sliding matching of the limiting sliding rod and the limiting sliding groove, so that the stability of the pressing of the positioning plate on the elastic strip body is ensured, and various different sizes of elastic strip bodies can be applied through the continuous force of the reset spring, so that the utility model discloses are high efficiency and convenience.
[0016] (6) The utility model discloses a bottom screw hole is set up on the gasket, and a bottom screw rod is set up in the bottom screw hole, and the positioning plate is fixed through the matching of the bottom screw rod and the bottom screw hole, and the elastic strip body is stably pressed, so that the stability of the elastic strip body on the gasket is further ensured, and the utility model discloses are convenient and practical. DRAWINGS
[0017] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments and in conjunction with the drawings, wherein
[0018] Figure 1 It is the whole structure schematic diagram of the spring damping device for train track in the utility model;
[0019] Figure 2 It is Figure 1 The enlarged view of A in the utility model;
[0020] Figure 3 It is the connecting structure schematic diagram of the gasket and the positioning frame in the utility model;
[0021] Figure 4It is the sectional view of the overall structure of the pressure assembly on the first pressure rod in the utility model;
[0022] Figure 5 For Figure 4 The enlarged view of B in the middle;
[0023] Figure 6 It is the sectional view of the connecting structure of the positioning plate and the backing plate in the utility model;
[0024] Figure 7 It is the sectional view of the overall structure of the backing plate in the utility model. DETAILED DESCRIPTION
[0025] See Figures 1 to 7The utility model discloses a fixed bolt 3 can be fixed in the gusset plate 1 on the gusset plate 1, and the gusset plate 1 is provided with the positioning plate 7 that can press the one end of gusset plate 2, and the positioning plate 7 is provided with the positioning mechanism that can fix gusset plate 2, the positioning mechanism includes the positioning frame 4 of rotation connection in the positioning plate 7, the first pressure bar 5 of fixed in the positioning frame 4, the second pressure bar 6 of fixed between the first pressure bar 5 and the positioning frame 4 and with the first pressure bar 5 vertical setting, the abutting assembly 8 of setting in the first pressure bar 5 and the second pressure bar 6 and can press gusset plate 2, the positioning frame 4 includes the connection rotation rod 41 of rotation connection in the both sides of positioning plate 7 and the connecting rod 42 of connecting each connection rotation rod 41, the first pressure bar 5 is arranged in parallel with the connecting rod 42, and the second pressure bar 6 is arranged in parallel with the connection rotation rod 41, the abutting assembly 8 includes a plurality of adjusting grooves 81, the adjusting slide 82 of sliding setting in adjusting groove 81 along the extension direction of adjusting groove 81, the adjusting screw hole 83 of setting on adjusting slide 82, the adjusting screw rod 84 of setting in adjusting screw hole 83, the rotation shaft 85 of rotation connection in the lower end of adjusting screw rod 84, the rotation pressure block 86 of rotation connection on the rotation shaft 85, the abutting camber of setting on the rotation pressure block 86 and the lock plate 80 of rotation connection on the connecting rod 42, the extension direction of each adjusting groove 81 on the first pressure bar 5 is arranged in parallel with the extension direction of the first pressure bar 5, and the extension direction of each adjusting groove 81 on the second pressure bar 6 is arranged perpendicularly with the extension direction of the second pressure bar 6, the upper end of each adjusting screw rod 84 is fixed with adjusting block, the axis of rotation shaft 85 is coaxial with adjusting screw hole 83, the rotation axis 85 line of rotation pressure block 86 is arranged in parallel with the gusset plate 1, and the rotation axis 85 line of each lock plate 80 is also arranged in parallel with the lock plate 80, the lock plate 80 is provided with locking piece, each rotation pressure block 86 on the first pressure bar 5 and the second pressure bar 6 is abutted on gusset plate 2 through the sliding fit of adjusting slide 82 and adjusting groove 81, the thread fit of adjusting screw rod 84 and adjusting screw hole 83, the rotation connection of rotation shaft 85 and adjusting screw rod 84 and the rotation connection of rotation pressure block 86 and rotation shaft 85, the positioning frame 4 is abutted on gusset plate 1 through the rotation connection with the positioning plate 7 and the abutment of each rotation pressure block 86 on gusset plate 2, and is fixed on the gusset plate 1 through the locking piece on the lock plate 80.
[0026] The connecting rod 42 is provided with a connecting rotating groove 421, the lock plate 80 is provided with a connecting rotating block 801, both ends of the connecting rotating block 801 are provided with a connecting rotating shaft 802, the connecting rotating groove 421 is provided with a connecting rotating hole 422 matched with each connecting rotating shaft 802, the lock plate 80 is rotatably connected with the connecting rod 42 through the cooperation of the connecting rotating block 801 and the connecting rotating groove 421 and the cooperation of the connecting rotating shaft 802 and the connecting rotating hole 422, one end of the lock plate 80 away from the connecting rotating block 801 is provided with a locking bolt 803, the base plate 1 is provided with a plurality of locking screw holes 15 matched with the locking bolt 803, each locking screw hole 15 is uniformly distributed on the side wall of the base plate 1 in the direction perpendicular to the base plate 1, the extension direction of each locking screw hole 15 is parallel to the extension direction of the second pressing rod 6, and the positioning frame 4 is fixed on the base plate 1 through the threaded cooperation of the locking bolt 803 and any locking screw hole 15.
[0027] Both ends of the adjusting sliding block 82 are fixedly provided with an adjusting sliding rod arranged in parallel with the extension direction of the adjusting groove 81, each adjusting groove 81 is provided with an adjusting sliding groove matched with each adjusting sliding rod, and each adjusting sliding block 82 is slidingly connected in the corresponding adjusting groove 81 through the cooperation of each adjusting sliding rod and the corresponding adjusting sliding groove.
[0028] The bottom of the adjusting screw rod 84 is provided with an adjusting rotating hole 841 coaxially arranged with the adjusting screw rod 84, the adjusting rotating hole 841 is provided with a rotating ring groove 842 coaxially arranged with the adjusting rotating hole 841, the rotating shaft 85 is provided with a rotating ring block 853 matched with the rotating ring groove 842, the rotating shaft 85 is rotatably connected with the adjusting screw rod 84 through the cooperation of the rotating ring block 853 and the rotating ring groove 842, the lower end of the rotating shaft 85 is provided with a limiting rotating groove 851, the limiting rotating groove 851 is fixedly provided with a limiting rotating shaft 852, the rotating pressing block 86 is provided with a through hole through which the limiting rotating shaft 852 passes, and the rotating pressing block 86 is rotatably connected on the rotating shaft 85 through the cooperation of the limiting rotating shaft 852 and the through hole.
[0029] The base plate 1 is provided with a sliding through groove 11 arranged in parallel with the first pressing rod 5, the sliding through groove 11 extends from one end of the base plate 1 to the other end of the base plate 1, a plurality of limiting sliding grooves 13 arranged in parallel with the extension direction of the second pressing rod 6 are arranged on the side wall of the sliding through groove 11 away from the elastic strip body 2, the positioning plate 7 is fixedly provided with a limiting sliding rod 71 matched with each limiting sliding groove 13, each limiting sliding rod 71 is provided with a return spring 14, and the two ends of the return spring 14 are arranged in the limiting sliding rod 71 and the limiting sliding groove 13 respectively.
[0030] The pad 1 is provided with a bottom screw hole 16 connected to the sliding groove 11, and a bottom screw 12 is arranged in the bottom screw hole 16. The extension direction of the bottom screw hole 16 is set parallel to the second pressure rod 6. One end of the bottom screw 12 is set on the outside of the pad 1, and the other end of the bottom screw 12 extends into the limiting sliding groove 13 through the threaded cooperation of the bottom screw hole 16 and the bottom screw 12 and presses the positioning plate 7.
[0031] When the cam 7 is in the closed position, the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam 7 is in the closed position, and the cam The movable pressure block 86 is rotatably connected to the rotating shaft 85 and is pressed against the elastic bar body 2. The adjusting slider 82 on the first pressure rod 5 and the second pressure rod 6 is adjusted according to the position of the elastic bar body 2 by adjusting the slide rod and the adjusting slot. The rotating pressure block 86 adjusts the pressure surface of the elastic bar body 2 of different shapes through the cooperation of the limiting rotating shaft 852 and the through hole, thereby ensuring that each rotating pressure block 86 can be fully and completely pressed against the elastic bar body 2, thereby ensuring stable pressure on the elastic bar body 2. By adjusting the rotating pressure block 86 at each position, comprehensive and stable pressure on the elastic bar body 2 of various positions and shapes can be achieved, which has good adjustability and practicality. After the various rotating pressure blocks 86 on the positioning frame 4 have completed the pressure on the elastic bar body 2, the locking plate 80 fixes the positioning frame 4 on the pad 1 through the cooperation of the locking bolt 803 and the locking screw hole 15, thereby achieving stable pressure on the positioning frame 4 and the pad 1. The structure is ingenious, convenient and practical.
[0032] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A spring shock absorbing device for a railway track, comprising a base plate, a spring strip body, and a fixing bolt for fixing the spring strip body to the base plate; characterized in that: The gusset plate is provided with a positioning plate for pressing one end of the elastic strip body, and the positioning plate is provided with a positioning mechanism for fixing the elastic strip body, the positioning mechanism comprises a positioning frame rotatably connected to the positioning plate, a first pressing rod fixed to the positioning frame, a second pressing rod fixed between the first pressing rod and the positioning frame and arranged perpendicularly to the first pressing rod, and a pressing assembly arranged on the first pressing rod and the second pressing rod and capable of pressing the elastic strip body, the positioning frame comprises connecting rotating rods rotatably connected to both sides of the positioning plate, and connecting rods connecting the connecting rotating rods, the first pressing rod is arranged in parallel with the connecting rods, and the second pressing rod is arranged in parallel with the connecting rotating rods, the pressing assembly comprises a plurality of adjusting grooves, adjusting sliders slidingly arranged in the adjusting grooves along the extension direction of the adjusting grooves, adjusting screw holes arranged on the adjusting sliders, adjusting screws arranged in the adjusting screw holes, rotating shafts rotatably connected to the lower ends of the adjusting screws, rotating pressing blocks rotatably connected to the rotating shafts, pressing curved surfaces arranged on the rotating pressing blocks, and lock plates rotatably connected to the connecting rods, the extension direction of each adjusting groove on the first pressing rod is arranged in parallel with the extension direction of the first pressing rod, the extension direction of each adjusting groove on the second pressing rod is arranged perpendicularly to the extension direction of the second pressing rod, the upper end of each adjusting screw is fixedly provided with an adjusting block, the axis of the rotating shaft is coaxially arranged with the adjusting screw hole, the rotating axis of the rotating pressing block is arranged in parallel with the gusset plate, the rotating axis of each lock plate is also arranged in parallel with the lock plate, the lock plate is provided with a locking member, and each rotating pressing block on the first pressing rod and the second pressing rod is pressed on the elastic strip body through the sliding cooperation of the adjusting slider and the adjusting groove, the threaded cooperation of the adjusting screw and the adjusting screw hole, the rotating connection of the rotating shaft and the adjusting screw, and the rotating connection of the rotating pressing block and the rotating shaft, the positioning frame presses the elastic strip body on the gusset plate through the rotating connection with the positioning plate and the pressing of the elastic strip body by each rotating pressing block, and the positioning frame is fixed on the gusset plate through the locking member on the lock plate.
2. A spring damper device for a railway track according to claim 1, characterized in that: The connecting rod is provided with a connecting rotating groove, the lock plate is provided with a connecting rotating block, both ends of the connecting rotating block are provided with a connecting rotating shaft, the connecting rotating groove is provided with a connecting rotating hole matched with each connecting rotating shaft, the lock plate is rotatably connected with the connecting rod through the cooperation of the connecting rotating block and the connecting rotating groove and the cooperation of the connecting rotating shaft and the connecting rotating hole, one end of the lock plate away from the connecting rotating block is provided with a locking bolt, the gusset plate is provided with a plurality of locking screw holes matched with the locking bolt, each locking screw hole is uniformly distributed on the side wall of the gusset plate in a direction perpendicular to the gusset plate, the extension direction of each locking screw hole is arranged in parallel with the extension direction of the second pressing rod, and the positioning frame is fixed on the gusset plate through the threaded cooperation of the locking bolt and any locking screw hole.
3. A spring damper device for a railway track according to claim 2, characterised in that: Both ends of the adjusting slider are fixedly provided with adjusting sliding rods arranged in parallel with the extension direction of the adjusting groove, each adjusting groove is provided with an adjusting sliding groove matched with each adjusting sliding rod, and each adjusting slider is slidingly connected in the corresponding adjusting groove through the cooperation of each adjusting sliding rod and the corresponding adjusting sliding groove.
4. A spring damper device for a railway track according to claim 3, characterised in that: The bottom of the adjusting screw is provided with an adjusting rotating hole coaxial with the adjusting screw, the adjusting rotating hole is provided with a rotating ring groove coaxial with the adjusting rotating hole, the rotating shaft is provided with a rotating ring block matched with the rotating ring groove, the rotating shaft is rotationally connected with the adjusting screw through the cooperation of the rotating ring block and the rotating ring groove, the lower end of the rotating shaft is provided with a limiting rotating groove, the limiting rotating groove is fixedly provided with a limiting rotating shaft, the rotating block is provided with a through hole through which the limiting rotating shaft passes, and the rotating block is rotationally connected with the rotating shaft through the cooperation of the limiting rotating shaft and the through hole.
5. A spring damper device for a railway track according to claim 4, characterised in that: The cushion plate is provided with a sliding through groove parallel to the first pressing rod, the sliding through groove extends from one end of the cushion plate to the other end of the cushion plate, a plurality of limiting sliding grooves parallel to the extension direction of the second pressing rod are arranged on the side wall of the sliding through groove away from the elastic strip body, the positioning plate is fixedly provided with a limiting sliding rod matched with each limiting sliding groove, and a return spring is arranged on each limiting sliding rod and acts on the limiting sliding rod and the limiting sliding groove.
6. A spring damper device for a railway track according to claim 5, characterised in that: The cushion plate is provided with a bottom screw hole communicated with the sliding through groove, the bottom screw hole is provided with a bottom screw rod, the extension direction of the bottom screw hole is parallel to the second pressing rod, one end of the bottom screw rod is arranged outside the cushion plate, the other end of the bottom screw rod extends into the limiting sliding groove through the threaded cooperation of the bottom screw hole and the bottom screw rod, and the positioning plate is pressed.