High-speed rail sound barrier convenient for overhauling and maintenance

Abstract

The present application relates to high-speed rail sound barrier maintenance technical field, specifically to a kind of high-speed rail sound barrier of being convenient to overhaul and maintain, including stand column bottom plate, still including connecting assembly, including bolt hole being opened in stand column bottom plate, U-shaped bolt is inserted in bolt hole;Sealing assembly is used to seal the gap at U-shaped bolt, nut, lock washer and bolt hole;Anti-loosening maintenance assembly, including mounting frame being fixedly installed on sound barrier stand column, multiple maintenance boxes are rotatably installed on the bottom wall of mounting frame, multiple clamps are installed in maintenance box, maintenance rod is equipped on fixed ring, and muffler is equipped above mounting frame. Corrosion and sealing are realized by setting sealing assembly to add various coatings at the connection of bolt, and anti-loosening maintenance assembly is further set, air vibration and air flow outside are used to assist the rotation of maintenance box, the rotation of clamp is driven to reinforce the connection of bolt, to prevent loosening, instead of manual maintenance, and maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of high-speed railway sound barrier maintenance technology, specifically to a high-speed railway sound barrier that is easy to inspect and maintain. Background Technology

[0002] In the inspection and maintenance of high-speed railway sound barriers, the key focus is on preventing loosening of anchor bolts, mounting bolts, and nuts, followed by preventing corrosion of bolts and nuts. Anchor bolts and mounting bolts should generally be inspected monthly, and any loose or detached bolts should be tightened promptly. Corrosion of bolts and nuts should be visually inspected; severely corroded bolts should be replaced immediately, while those with minor corrosion should undergo anti-corrosion treatment. While on-site barrier panels can be replaced promptly, replacing corroded connecting bolts, especially embedded parts, is difficult and costly. Failure to repair or replace them in a timely manner poses a serious safety hazard.

[0003] The railway industry has difficulty effectively solving the above problems. Generally, it improves the corrosion resistance of bolts through technologies such as alloy co-diffusion, galvanizing, and Dacromet coating, but these methods are not effective. Secondly, for the fastening bolts on the track fasteners, the design adopts mechanized operation and regular oiling maintenance along the line. However, the fasteners of the sound barriers are distributed on both sides of the line and have significant variations in distance, making mechanized operation impossible. Manual regular oiling maintenance is also impractical. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high-speed railway sound barrier that is easy to inspect and maintain, and can effectively solve the problem that the connection between the high-speed railway sound barrier and the bridge shield is not easy to maintain in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a high-speed railway sound barrier that is easy to inspect and maintain, including a column base plate, a sound barrier column installed on the top of the column base plate, and a sound barrier mounted on the sound barrier column, and further including:

[0007] The connecting component includes bolt holes formed in the column base plate, U-bolts are inserted into the bolt holes, and nuts are threaded onto both ends of the U-bolts, with anti-loosening washers provided between the nuts and the column base plate;

[0008] Sealing components are used to seal gaps in U-bolts, nuts, lock washers, and bolt holes;

[0009] The anti-loosening maintenance component includes a mounting bracket fixedly installed on a sound barrier column. Multiple maintenance boxes are rotatably mounted on the bottom wall of the mounting bracket. The maintenance boxes are located directly above the nut. Each maintenance box contains multiple clamping plates. When the maintenance box moves down, the clamping plates are pressed tightly against the side wall of the nut. A fixing ring is provided above the maintenance box and rotates synchronously with it. A maintenance rod is provided on the fixing ring. A sound-absorbing component is provided above the mounting bracket. The sound-absorbing component is used to eliminate noise and convert it into kinetic energy to strike the maintenance rod.

[0010] Furthermore, the sealing assembly includes a sealant applied to the inner wall of the bolt hole, the gap between the anti-loosening washer and the nut, and the inner wall of the nut. A sealant is provided between the anti-loosening washer and the column base plate. A sealant is applied to the side wall of the nut. A sealant is applied between the top of the U-bolt and the anti-loosening washer. The sealant is coated with a flexible fluorocarbon topcoat.

[0011] Furthermore, the U-bolt is provided with a pre-embedded steel plate, the column base plate is provided with a casting hole, and a bridge cover plate is provided below the column base plate.

[0012] Furthermore, a fixing frame is fixedly installed on one side of the sound barrier column, and the mounting frame is fixedly installed on the fixing frame. A first piston tube is fixedly installed on the bottom wall of the mounting frame, and a first piston rod is movably inserted into the bottom wall of the first piston tube. The maintenance box is fixedly installed at the bottom end of the first piston rod, and an elastic rod is fixedly installed on the inner wall of the maintenance box. The clamping plate is fixedly installed at the end of the elastic rod, and a wedge block is slidably installed on the inner wall of the maintenance box. When the maintenance box moves down, the column base plate squeezes the wedge block to move up, pushing the clamping plate to move towards the side wall of the nut. The fixing ring is fixedly sleeved on the first piston tube, and a first return spring is sleeved on the first piston rod.

[0013] Furthermore, a silencer box is fixedly installed on the sound barrier column, a transmission box is fixedly installed on the top wall of the silencer box, a rotating rod is rotatably installed in the transmission box, a wind turbine is provided on the rotating rod, a micro generator is connected to the outside of the rotating rod, a first electromagnet is fixedly installed on the bottom wall of the fixed ring, and both the first electromagnet and the second electromagnet are electrically connected to the micro generator, a second electromagnet is provided on the top wall of the maintenance box, and the first electromagnet and the second electromagnet repel each other when they are started.

[0014] Furthermore, the silencer includes mounting holes formed on the silencer box, with a silencer pipe movably installed in each mounting hole. Multiple airbags are provided on the side wall of each silencer pipe. An air collecting pipe is fixedly installed in the silencer box. A first connecting pipe connects the airbags and the air collecting pipe. A second piston pipe is fixedly installed below the air collecting pipe, and a second piston rod is movably inserted into the bottom end of the second piston pipe. A sliding rod is slidably installed on the mounting bracket, and an impact plate is fixedly installed on the sliding rod. A maintenance block is fixed to the bottom end of the second piston rod. When the maintenance block moves downward, it squeezes the sliding rod to impact the maintenance rod.

[0015] Furthermore, two second piston discs are slidably installed in each of the gas collecting pipes, and a fixing block is provided in the middle of the gas collecting pipe. A second return spring is connected between the second piston disc and the fixing block. A vent pipe is connected between the gas collecting pipe and the second piston pipe. A vent hole is provided on the side wall of the second piston pipe. A third return spring is sleeved on the second piston rod.

[0016] Furthermore, a second sliding plate is fixedly installed on the inner wall of the silencer box, and a first sliding plate is slidably installed on the second sliding plate. The silencer pipe is slidably connected to the first sliding plate, and the sliding direction of the first sliding plate is perpendicular to the sliding direction of the silencer pipe.

[0017] Furthermore, a third piston tube is fixedly installed on the top wall of the silencer box, and a third piston rod is movably inserted into the end of the third piston tube near the transmission box. A cam is provided on the rotating rod, and the end of the third piston rod away from the third piston tube is slidably connected to the side wall of the cam. A second connecting pipe is connected between the third piston tube and the air collecting pipe.

[0018] Furthermore, a paint box is provided on the base plate of the column, a paint inlet pipe is connected between the first piston tube and the paint box, a paint outlet pipe is provided on the first piston tube, and the paint outlet pipe extends into the maintenance box.

[0019] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0020] Corrosion protection and sealing are achieved by adding multiple coatings to the bolt connection through the setting of sealing components. Secondly, an anti-loosening maintenance component is also set up, which uses external air vibration and air flow to assist the rotation of the maintenance box, drive the clamp plate to rotate and strengthen the bolt connection, prevent it from loosening, replace manual maintenance and reduce maintenance costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is an overall schematic diagram of the present invention;

[0023] Figure 2 This is a structural diagram of the U-bolt section;

[0024] Figure 3 This is a structural diagram of the silencer enclosure.

[0025] Figure 4 This is a structural diagram of the fixing frame part;

[0026] Figure 5 A schematic diagram of the internal structure of the maintenance box;

[0027] Figure 6 This is a schematic diagram of the internal structure of the silencer section;

[0028] Figure 7 A schematic diagram of the internal structure of the first piston tube and the paint box;

[0029] Figure 8 This is a schematic diagram of the internal structure of the silencer box;

[0030] Figure 9 for Figure 8 Enlarged view of the structure of part A in the middle;

[0031] Figure 10 This is a schematic diagram of the sealing at the end of the U-bolt in this invention.

[0032] The labels in the diagram represent: 1. Column base plate; 2. Sound barrier column; 3. Bridge shield; 4. U-bolt; 5. Pouring hole; 6. Embedded steel plate; 7. Nut; 8. Anti-loosening washer; 9. Fixing bracket; 10. Mounting bracket; 11. First piston tube; 12. First piston rod; 13. Maintenance box; 14. Elastic rod; 15. Clamping plate; 16. Wedge block; 17. Fixing ring; 18. Maintenance rod; 19. Second electromagnet; 20. Maintenance block; 21. Sliding rod; 22. Impact plate; 23. Silencer box; 24. Silencer pipe; 25. First piston. 26. Disc; 27. Airbag; 28. First slide plate; 29. ​​Second slide plate; 30. Air collection pipe; 31. Second piston disc; 32. Fixing block; 33. Second return spring; 34. Second piston tube; 35. Second piston rod; 36. Vent pipe; 37. Third return spring; 38. Vent hole; 39. Transmission box; 40. Wind wheel; 41. Third piston tube; 42. Third piston rod; 43. Cam; 44. Paint box; 45. Paint inlet pipe; 46. Paint outlet pipe; 47. Sealant; 48. Sealant; 49. Flexible fluorocarbon topcoat. Detailed Implementation

[0033] 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example: Reference Figures 1-10 A high-speed rail sound barrier that is easy to inspect and maintain includes a column base plate 1, a sound barrier column 2 installed on the column base plate 1, a sound barrier on the column 2, and a connecting assembly including bolt holes in the column base plate 1, U-bolts 4 inserted into the bolt holes, nuts 7 threaded onto both ends of the U-bolts 4, anti-loosening washers 8 between the nuts 7 and the column base plate 1, a pre-embedded steel plate 6 on the U-bolts 4, and a casting hole 5 on the column base plate 1. The bridge shield 3 is provided; a sealing assembly is provided to seal the gaps of U-bolt 4, nut 7, anti-loosening washer 8 and bolt hole. The sealing assembly includes sealant 46 applied to the inner wall of bolt hole, the gap between anti-loosening washer 8 and nut 7 and the inner wall of nut 7. A sealant is provided between anti-loosening washer 8 and column base plate 1. A sealant 48 is applied to the side wall of nut 7. A sealant 47 is applied from the top of U-bolt 4 to anti-loosening washer 8. The sealant 47 is coated with flexible fluorocarbon topcoat 49.

[0036] like Figure 1 and Figure 2 As shown, the column base plate 1 and the bridge shield 3 are connected by casting, which makes the connection very stable. The main problems to be solved are to prevent the connection between the U-bolt 4 and the nut 7 from loosening and to prevent them from rusting, so as to extend their service life.

[0037] First, such as Figure 10 As shown, sealant 46 is applied to the inner wall of the bolt hole, the gap between the anti-loosening washer 8 and the nut 7, and the inner wall of the nut 7. A sealant is applied between the anti-loosening washer 8 and the column base plate 1. Sealant 48 is applied to the side wall of the nut 7. Sealant 47 is applied between the top of the U-bolt 4 and the anti-loosening washer 8. Flexible fluorocarbon topcoat 49 is sprayed onto the outside of the sealant 47. These chemical coatings improve the corrosion resistance of the U-bolt 4 and the nut 7. Furthermore, when a train or high-speed rail passes by, the surrounding ground vibrates; the coating's adhesive properties can hinder rotation to some extent, thus ensuring the stability of the connection.

[0038] refer to Figures 1-10The system also includes an anti-loosening maintenance component, comprising a mounting bracket 10 fixedly installed on the sound barrier column 2. Multiple maintenance boxes 13 are rotatably mounted on the bottom wall of the mounting bracket 10, located directly above the nut 7. Each maintenance box 13 contains multiple clamping plates 15. When the maintenance box 13 moves downwards, the clamping plates 15 are pressed tightly against the side wall of the nut 7. A fixing bracket 9 is fixedly installed on one side of the sound barrier column 2, and the mounting bracket 10 is fixedly mounted on the fixing bracket 9. A first piston tube 11 is fixedly installed on the bottom wall of the mounting bracket 10, and the bottom wall of the first piston tube 11 is movable. A first piston rod 12 is inserted, and a maintenance box 13 is fixedly installed at the bottom end of the first piston rod 12. An elastic rod 14 is fixedly installed on the inner wall of the maintenance box 13, and a clamping plate 15 is fixedly installed at the end of the elastic rod 14. A wedge block 16 is slidably installed on the inner wall of the maintenance box 13. When the maintenance box 13 moves downward, the column base plate 1 presses the wedge block 16 upward, pushing the clamping plate 15 to move towards the side wall of the nut 7. A transmission box 38 is fixedly installed on the top wall of the silencing box 23. A rotating rod is rotatably installed in the transmission box 38, and a fan wheel 39 is provided on the rotating rod for silencing. A third piston tube 40 is fixedly installed on the top wall of box 23. A third piston rod 41 is movably inserted into the end of the third piston tube 40 near the transmission box 38. A cam 42 is provided on the rotating rod. The end of the third piston rod 41 away from the third piston tube 40 is slidably connected to the side wall of the cam 42. A second connecting pipe is connected between the third piston tube 40 and the gas collecting pipe 29. A micro generator is connected to the outside of the rotating rod. A first electromagnet is fixedly installed on the bottom wall of the fixing ring 17. Both the first electromagnet and the second electromagnet 19 are electrically connected to the micro generator. Maintenance box 1 A second electromagnet 19 is provided on the top wall of 3, and the first electromagnet and the second electromagnet 19 repel each other when they are activated. A fixing ring 17 is fixedly sleeved on the first piston tube 11. A first return spring is sleeved on the first piston rod 12. A fixing ring 17 that rotates synchronously with the maintenance box 13 is provided above it. A maintenance rod 18 is provided on the fixing ring 17. A paint box 43 is provided on the column base plate 1. A paint inlet pipe 44 is connected between the first piston tube 11 and the paint box 43. A paint outlet pipe 45 is provided on the first piston tube 11 and extends into the maintenance box 13.

[0039] To reduce the workload of maintenance personnel while improving maintenance quality, a maintenance box 13 is installed on the side of the sound barrier column 2. When high-speed trains or bullet trains pass by, the rapid airflow causes the wind turbine 39 to rotate rapidly. The wind turbine 39 drives the rotating rod to rotate, which in turn drives the shaft of the micro generator to rotate, thus generating electricity. It is worth noting that the principle of the micro generator is to generate electricity by cutting magnetic field lines through the rotation of a coil (this power generation method is existing technology and will not be elaborated further). The generated electricity is used to start two electromagnets. When the two electromagnets start, they repel each other, thereby driving the maintenance box 13 to move downwards. Figure 5As shown, the maintenance box 13 is equipped with clamping plates 15 inside. When the maintenance box 13 moves downward, the wedge block 16 is squeezed upward. When the wedge block 16 moves upward, it squeezes the clamping plate 15 towards the side wall of the nut 7 through its inclined surface. The clamping plates 15 in multiple directions are used to hold the nut 7, which can prevent the nut 7 from loosening. On the other hand, a fixing ring 17 is provided on the top wall of the maintenance box 13, and a maintenance rod 18 is provided on the fixing ring 17. By tapping the maintenance rod 18, the nut 7 is further prevented from loosening. After the surrounding air flow stops, the impeller 39 stops rotating, the magnetic force disappears, and under the action of the first reset spring, the maintenance box 13 moves upward and resets, so as to protect the nut 7 from loosening every time a high-speed train passes by.

[0040] Secondly, such as Figure 7 As shown, when the first piston rod 12 moves down, the space at the upper end of the first piston tube 11 increases, and the paint inlet pipe 44 is used to draw paint from the paint box 43. When the first piston rod 12 moves up to reset, that is, when the clamping plate 15 is no longer clamping, the space at the upper end of the first piston tube 11 decreases, and the paint outlet pipe 45 is used to spray paint onto the outside of the nut 7, further improving the sealing and corrosion resistance of the nut 7, while also maintaining the stability of the overall coating, thereby improving its shock resistance. The type of paint can be replaced according to the requirements.

[0041] refer to Figures 1-10 A silencer is provided above the mounting frame 10. A silencer box 23 is fixedly installed on the sound barrier column 2. The silencer is used to eliminate noise and convert it into kinetic energy to strike the maintenance rod 18. The silencer includes mounting holes opened on the silencer box 23. A silencer pipe 24 is movably installed in each mounting hole. A second sliding plate 28 is fixedly installed on the inner wall of the silencer box 23. A first sliding plate 27 is slidably installed on the second sliding plate 28. The silencer pipe 24 is slidably connected to the first sliding plate 27. The sliding direction of the first sliding plate 27 is perpendicular to the sliding direction of the silencer pipe 24. Multiple airbags 26 are provided on the side wall of each silencer pipe 24. An air collecting pipe 29 is fixedly installed in the silencer box 23. A first connecting pipe connects the airbags 26 and the air collecting pipe 29. A second piston tube 33 is fixedly installed below the 9, and a second piston rod 34 is movably inserted into the bottom end of the second piston tube 33. A slide rod 21 is slidably installed on the mounting bracket 10, and an impact plate 22 is fixedly installed on the slide rod 21. A maintenance block 20 is fixed to the bottom end of the second piston rod 34. When the maintenance block 20 moves down, it squeezes the slide rod 21 and impacts the maintenance rod 18. Two second piston discs 30 are slidably installed in each gas collecting pipe 29, and a fixing block 31 is provided in the middle of the gas collecting pipe 29. A second return spring 32 is connected between the second piston disc 30 and the fixing block 31. A vent pipe 35 is connected between the gas collecting pipe 29 and the second piston tube 33. A vent hole 37 is provided on the side wall of the second piston tube 33. A third return spring 36 is sleeved on the second piston rod 34.

[0042] High-speed trains or bullet trains generate significant noise when passing by, causing substantial air vibration. To improve maintenance quality and reduce costs, this air vibration is transmitted to the muffler 24, causing it to vibrate. During this vibration, the muffler 24 compresses the surrounding airbags 26. Both the airbags 26 and the third piston tube 40 have air inlets, and the first connecting pipe, the second connecting pipe, and the two air inlets are equipped with one-way valves. The airbags 26 are elastic; under continuous compression, they continuously draw in external air and transport it to the air collection pipe 29 via the first connecting pipe. Furthermore, as... Figure 8 As shown, the rotating rod will also drive the cam 42 to rotate. During the rotation of the cam 42, the third piston rod 41 will slide back and forth. During the back and forth sliding of the third piston rod 41, the air pressure inside the third piston tube 40 will be changed, and the air in the third piston tube 40 will also be transported to the air collection pipe 29.

[0043] To increase the striking force, a second piston tube 33 is installed below the air collecting pipe 29, and a second piston disc 30 is installed inside the air collecting pipe 29. As air enters, the air pressure inside the air collecting pipe 29 continuously increases, and the second piston disc 30 continuously moves towards the fixed block 31 until it reaches the vent pipe 35. The vent pipe 35 is connected to the space of the air collecting pipe 29, and the compressed air inside quickly enters the second piston tube 33, thereby rapidly pushing the second piston rod 34 downward. Figure 4 As shown, the second piston rod 34 moves down, causing the maintenance block 20 to move down. When the maintenance block 20 moves down, it squeezes the two sliding rods 21 to slide, thereby causing the impact plate 22 to quickly impact the maintenance rod 18, thus further improving the shock resistance of the nut 7.

[0044] It is worth noting that a vent hole 37 is provided on the second piston tube 33, and the diameter of the vent hole 37 is small, so that it can slowly reset after impact.

[0045] In addition, a first piston disc 25 is provided in the muffler 24. When the air vibrates, the first piston disc 25 will also slide in the muffler 24, thereby changing the air pressure in the muffler 24. It is worth noting that a return spring is provided between the first piston disc 25 and the inner wall of the muffler 24 to help it return to its original position. It is connected to the air collection pipe 29 through the connecting pipe to further accelerate the collection of air, improve the speed and quality of the impact, and thus further improve the shock resistance effect.

[0046] All the connecting fittings mentioned above are flexible hoses to ensure normal operation during maintenance.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-speed railway sound barrier that is easy to inspect and maintain, comprising a column base plate (1), a sound barrier column (2) installed above the column base plate (1), and a sound barrier provided on the sound barrier column (2), characterized in that, Also includes: The connecting component includes bolt holes opened on the column base plate (1), U-bolts (4) are inserted into the bolt holes, and nuts (7) are threaded on both ends of the U-bolts (4), and anti-loosening washers (8) are provided between the nuts (7) and the column base plate (1). A sealing assembly for sealing the gaps at the U-bolt (4), nut (7), anti-loosening washer (8), and bolt hole; The anti-loosening maintenance component includes a mounting bracket (10) fixedly installed on the sound barrier column (2). Multiple maintenance boxes (13) are rotatably installed on the bottom wall of the mounting bracket (10). The maintenance boxes (13) are located directly above the nut (7). Multiple clamping plates (15) are installed in each maintenance box (13). When the maintenance box (13) moves down, the clamping plates (15) are tightly attached to the side wall of the nut (7). A fixing ring (17) is provided above the maintenance box (13) and rotates synchronously with it. A maintenance rod (18) is provided on the fixing ring (17). A sound-absorbing component is provided above the mounting bracket (10). The sound-absorbing component is used to eliminate noise and convert it into kinetic energy to strike the maintenance rod (18). A fixing frame (9) is fixedly installed on one side of the sound barrier column (2). The mounting frame (10) is fixedly installed on the fixing frame (9). A first piston tube (11) is fixedly installed on the bottom wall of the mounting frame (10). A first piston rod (12) is movably inserted into the bottom wall of the first piston tube (11). The maintenance box (13) is fixedly installed at the bottom end of the first piston rod (12). An elastic rod (14) is fixedly installed on the inner wall of the maintenance box (13). A clamping plate (15) is fixedly installed at the end of the elastic rod (14). A wedge block (16) is slidably installed on the inner wall of the maintenance box (13). When the maintenance box (13) moves down, the column base plate (1) squeezes the wedge block (16) to move up, pushing the clamping plate (15) to move toward the side wall of the nut (7). The fixing ring (17) is fixedly sleeved on the first piston tube (11). A first return spring is sleeved on the first piston rod (12). The silencer includes a silencer box (23) fixedly mounted on a fixed frame (9). The silencer box (23) has mounting holes, and a silencer pipe (24) is movably mounted in each mounting hole. Multiple airbags (26) are provided on the side wall of each silencer pipe (24). An air collecting pipe (29) is fixedly mounted in the silencer box (23). A first connecting pipe connects the airbags (26) and the air collecting pipe (29). A second piston pipe (33) is fixedly mounted below the air collecting pipe (29), and a second piston rod (34) is movably inserted into the bottom end of the second piston pipe (33). A slide rod (21) is slidably mounted on the mounting frame (10). An impact plate (22) is fixedly mounted on the slide rod (21). A maintenance block (20) is fixed to the bottom end of the second piston rod (34). When the maintenance block (20) moves down, it squeezes the slide rod (21) and impacts the maintenance rod (18). A transmission box (38) is fixedly installed on the top wall of the silencing box (23). A rotating rod is rotatably installed in the transmission box (38). A wind turbine (39) is provided on the rotating rod. A micro generator is connected to the outside of the rotating rod. A first electromagnet is fixedly installed on the bottom wall of the fixed ring (17). The first electromagnet and the second electromagnet (19) are both electrically connected to the micro generator. A second electromagnet (19) is provided on the top wall of the maintenance box (13). The first electromagnet and the second electromagnet (19) repel each other when they are started. Two second piston discs (30) are slidably installed in each of the gas collecting pipes (29), and a fixing block (31) is provided in the middle of the gas collecting pipe (29). A second return spring (32) is connected between the second piston disc (30) and the fixing block (31). A vent pipe (35) is connected between the gas collecting pipe (29) and the second piston pipe (33). A vent hole (37) is provided on the side wall of the second piston pipe (33). A third return spring (36) is sleeved on the second piston rod (34). A second sliding plate (28) is fixedly installed on the inner wall of the silencer box (23). A first sliding plate (27) is slidably installed on the second sliding plate (28). The silencer pipe (24) is slidably connected to the first sliding plate (27). The sliding direction of the first sliding plate (27) is perpendicular to the sliding direction of the silencer pipe (24).

2. The high-speed railway sound barrier that is easy to inspect and maintain according to claim 1, characterized in that, The sealing assembly includes a sealant (46) applied to the inner wall of the bolt hole, the gap between the anti-loosening washer (8) and the nut (7), and the inner wall of the nut (7). A sealant is provided between the anti-loosening washer (8) and the column base plate (1). A sealant (48) is applied to the side wall of the nut (7). A sealant (47) is applied between the top of the U-bolt (4) and the anti-loosening washer (8). The sealant (47) is coated with a flexible fluorocarbon topcoat (49).

3. The high-speed railway sound barrier that is easy to inspect and maintain according to claim 1, characterized in that, The U-bolt (4) is provided with a pre-embedded steel plate (6), the column base plate (1) is provided with a casting hole (5), and the column base plate (1) is provided with a bridge cover plate (3) below it.

4. The high-speed railway sound barrier that is easy to inspect and maintain according to claim 1, characterized in that, A third piston tube (40) is fixedly installed on the top wall of the silencer box (23). A third piston rod (41) is movably inserted into the end of the third piston tube (40) near the transmission box (38). A cam (42) is provided on the rotating rod. The end of the third piston rod (41) away from the third piston tube (40) is slidably connected to the side wall of the cam (42). A second connecting pipe is connected between the third piston tube (40) and the air collecting pipe (29).

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