Shock absorption and noise reduction short sleeper

Abstract

The utility model belongs to the technical field of short sleepers, and discloses a shock absorption and noise reduction short sleeper which comprises a short sleeper body, a shock absorption and noise reduction assembly is installed on the surface of the short sleeper body and comprises a pre-embedded base, the pre-embedded base is arranged at the bottom of the short sleeper body, a pre-embedded block is installed at the bottom of the pre-embedded base, and a shock absorption and noise reduction assembly is installed on the surface of the short sleeper body. Supporting rods are symmetrically installed at the bottom of the short sleeper body, a pressing plate is installed between the two supporting rods, a sliding groove matched with the pressing plate is formed in the surface of the embedded base, the pressing plate is connected into the sliding groove in a sliding mode, a shock absorption pad is installed at the bottom of the sliding groove, the shock absorption pad is attached to the pressing plate, and the shock absorption pad is connected with the pressing plate in a sliding mode. The sleeper has the advantages that the sleeper can be subjected to shock absorption and noise reduction treatment, and the situation that when a train passes through the sleeper, high-frequency vibration is easily transmitted to a ballast bed and a railway ballast, railway ballast displacement and rail deformation are caused, the running safety of the train is affected, and large noise is generated is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of short sleeper technology, specifically a shock-absorbing and noise-reducing short sleeper. Background Technology

[0002] In the field of rail transit, sleepers are a key component of the track structure, and their performance directly affects the stability, comfort, and service life of the track.

[0003] In recent years, the construction of rail transit has developed rapidly. With the acceleration of urbanization and people's increasing demands for the quality of living environment, especially the requirements for environmental protection, vibration and noise of urban rail transit have also gradually increased.

[0004] Vibration and noise issues generated during rail transit operation are receiving increasing attention. Traditional reinforced concrete or composite material sleepers have far less vibration and noise reduction capabilities than early wooden sleepers due to their material properties. This makes it easy for high-frequency vibrations of the rails to be transmitted to the track bed and ballast when a train passes by, causing ballast displacement and rail deformation. This not only affects train safety but also generates significant noise and reduces the passenger experience.

[0005] Therefore, a short sleeper with vibration reduction and noise reduction is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a short sleeper with vibration reduction and noise reduction capabilities. It has the advantage of being able to perform vibration reduction and noise reduction treatment on the sleeper, preventing high-frequency vibrations from being easily transmitted to the track bed and ballast when a train passes over the sleeper, which could cause ballast displacement and rail deformation, thus affecting train safety and generating significant noise.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing and noise-reducing short sleeper, comprising a short sleeper body, wherein a shock-absorbing and noise-reducing component is installed on the surface of the short sleeper body;

[0008] The vibration damping and noise reduction component includes a pre-embedded base. The bottom of the short sleeper body is provided with the pre-embedded base, and a pre-embedded block is installed at the bottom of the pre-embedded base. Support rods are symmetrically installed at the bottom of the short sleeper body, and a pressure plate is installed between the two support rods. A groove adapted to the pressure plate is opened on the surface of the pre-embedded base, and the pressure plate is slidably connected within this groove. A shock-absorbing pad is installed at the bottom of this groove, and the shock-absorbing pad is in contact with the pressure plate. An extrusion block is installed at the bottom of the short sleeper body. Buffer pads are symmetrically arranged inside the pre-embedded base, and the buffer pads are connected to the shock-absorbing pads. The extrusion block is in contact with the buffer pads. Noise-reducing pads are symmetrically wrapped at the connection between the pre-embedded base and the short sleeper body. A disassembly and replacement component is installed on the surface of the pre-embedded base.

[0009] Preferably, a limiting plate is installed inside the pre-embedded base, and the support rod is slidably connected inside the limiting plate.

[0010] Preferably, a pre-embedded wire plate is installed on the surface of the pre-embedded base.

[0011] Preferably, a positioning block is mounted on one side surface of one of the buffer pads, and the positioning block is inserted into a positioning groove opened on the surface of the other buffer pad.

[0012] Preferably, the noise reduction pad is tightly attached to the outer surface of the short sleeper body and the pre-embedded base.

[0013] Preferably, the disassembly and replacement assembly includes a connecting rod. The connecting rod is installed on one side surface of the shock-absorbing pad. The surface of the pre-embedded base has a clearance groove adapted to the shock-absorbing pad. The shock-absorbing pad is slidably connected inside the clearance groove. One end of the connecting rod extends to the outside of the pre-embedded base and is connected to a disassembly plate disposed outside the pre-embedded base. A bolt is threaded into a threaded hole on the surface of the disassembly plate. One end of the bolt passes through the disassembly plate and is threaded into the threaded hole on the surface of the pre-embedded base.

[0014] Preferably, a mounting plate is symmetrically mounted on the surface of one of the noise-reducing pads, and the mounting plate is inserted into a mounting groove opened on the surface of the other noise-reducing pad. A bolt is threaded into a threaded hole opened on the surface of the other noise-reducing pad, one end of which passes through the noise-reducing pad and is threaded into the threaded hole opened on the surface of the mounting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting up a shock-absorbing and noise-reducing component, can perform shock-absorbing and noise-reducing treatment on the short sleeper body, so as to avoid the high-frequency vibration of the short sleeper body being easily transmitted to the track bed and ballast when the train passes over the short sleeper body, causing ballast displacement and rail deformation, which not only affects the safety of train operation, but also generates a lot of noise.

[0017] 2. This utility model incorporates a disassembly and replacement component. Through the design of the connecting rod and the disassembly plate, when the shock-absorbing pad needs to be replaced, simply unscrew one bolt and pull the disassembly plate to remove the shock-absorbing pad from the recessed groove of the pre-embedded base. This design avoids a complicated disassembly process, greatly saving time and labor costs for replacing the shock-absorbing pad. It enables the replacement of shock-absorbing pads that have been used for a long time, preventing the aging shock-absorbing pad from reducing its shock absorption effect and affecting the shock absorption performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the embedded base of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the buffer pad and positioning block of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mounting plate and noise reduction pad of this utility model.

[0022] In the diagram: 1. Short sleeper body; 2. Vibration damping and noise reduction components; 21. Embedded base; 22. Embedded block; 23. Support rod; 24. Pressure plate; 25. Vibration-absorbing pad; 26. Extrusion block; 27. Buffer pad; 28. Noise reduction pad; 29. ​​Limiting plate; 210. Embedded line plate; 211. Positioning block; 3. Disassembly and replacement components; 31. Connecting rod; 32. Disassembly and assembly plate; 33. Bolt 1; 34. Mounting plate; 35. Bolt 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4 As shown, this utility model provides a shock-absorbing and noise-reducing short sleeper, including a short sleeper body 1, and a shock-absorbing and noise-reducing component 2 installed on the surface of the short sleeper body 1.

[0025] The vibration damping and noise reduction component 2 includes a pre-embedded base 21. The bottom of the short sleeper body 1 is provided with the pre-embedded base 21, and a pre-embedded block 22 is installed at the bottom of the pre-embedded base 21. Support rods 23 are symmetrically installed at the bottom of the short sleeper body 1, and a pressure plate 24 is installed between the two support rods 23. A groove adapted to the pressure plate 24 is formed on the surface of the pre-embedded base 21, and the pressure plate 24 is slidably connected within this groove. A shock-absorbing pad 25 is installed at the bottom of this groove, and the shock-absorbing pad 25 fits snugly against the pressure plate 24. An extrusion block 26 is installed at the bottom of the short sleeper body 1. The embedded base 21 has symmetrically arranged buffer pads 27 inside, which are connected to the shock-absorbing pads 25. The compression block 26 is attached to the buffer pads 27. The connection between the embedded base 21 and the short sleeper body 1 is symmetrically wrapped with noise reduction pads 28. The surface of the embedded base 21 is equipped with a disassembly and replacement component 3, which can perform shock reduction and noise reduction treatment on the short sleeper body 1. This prevents high-frequency vibration from being easily transmitted to the track bed and ballast when the train passes over the short sleeper body 1, causing ballast displacement and rail deformation, which not only affects the safety of train operation but also generates a lot of noise.

[0026] Specifically, a limiting plate 29 is installed inside the pre-embedded base 21, and the support rod 23 is slidably connected inside the limiting plate 29, which can limit the movement position of the support rod 23.

[0027] like Figures 1 to 4 As shown, a pre-embedded wire plate 210 is installed on the surface of the pre-embedded base 21, which enables the positioning of the pre-embedded position.

[0028] Furthermore, a positioning block 211 is installed on one side surface of one of the buffer pads 27. The positioning block 211 is inserted into a positioning groove opened on the surface of the other buffer pad 27, thereby enabling the two buffer pads 27 to be spliced ​​together.

[0029] It is worth noting that the noise reduction pad 28 is closely attached to the outer surface of the short sleeper body 1 and the pre-embedded base 21.

[0030] like Figures 1 to 4 As shown, the disassembly and replacement component 3 includes a connecting rod 31. The connecting rod 31 is installed on one side surface of the shock-absorbing pad 25. The surface of the pre-embedded base 21 is provided with a relief groove that is adapted to the shock-absorbing pad 25. The shock-absorbing pad 25 is slidably connected inside this relief groove. One end of the connecting rod 31 extends to the outside of the pre-embedded base 21 and is connected to the disassembly plate 32 provided outside the pre-embedded base 21. A bolt 33 is threaded into the threaded hole on the surface of the disassembly plate 32. One end of bolt 33 passes through the disassembly plate 32 and is threaded into the threaded hole on the surface of the embedded base 21. Through the design of the connecting rod 31 and the disassembly plate 32, when the shock-absorbing pad 25 needs to be replaced, simply unscrew bolt 33 and pull the disassembly plate 32 to pull the shock-absorbing pad 25 out of the clearance groove of the embedded base 21. This design avoids a complicated disassembly process, greatly saves time and labor costs for replacing the shock-absorbing pad 25, and enables the replacement of the shock-absorbing pad 25 that has been used for a long time, avoiding the reduction of the shock absorption effect of the aged shock-absorbing pad 25 and affecting the shock absorption effect.

[0031] It is worth emphasizing that mounting plates 34 are symmetrically installed on the surface of one of the noise-reducing pads 28. The mounting plates 34 are inserted into mounting grooves on the surface of the other noise-reducing pad 28. A bolt 35 is threaded into a threaded hole on the surface of the other noise-reducing pad 28. One end of the bolt 35 passes through the noise-reducing pad 28 and is threaded into the threaded hole on the surface of the mounting plate 34. The noise-reducing pads 28 are connected via the mounting plate 34 and the bolt 35. When a noise-reducing pad 28 is damaged or needs replacement, simply unscrew the bolt 35 and pull the mounting plate 34 out of the mounting groove to easily remove the old noise-reducing pad 28 and install a new one. This allows for the replacement of noise-reducing pads 28 that have been used for a long time, preventing the aging noise-reducing pads 28 from reducing their vibration damping effect and affecting the overall vibration reduction performance.

[0032] Among them, the structure of the short sleeper body 1 is existing technology and is not the main technical point of this patent. The appropriate model is selected according to actual use, so the short sleeper body 1 will not be explained in detail.

[0033] Working principle and process: First, the pre-embedded base 21 and the short sleeper body 1 are placed in the pre-embedded pit, so that the pre-embedded line plate 210 installed on the surface of the pre-embedded base 21 is in contact with the ground, which plays a role in positioning and fixing. Then, concrete is poured in so that the pre-embedded base 21 is buried in the ground, thereby realizing the installation of the pre-embedded base 21 and the short sleeper body 1 as a whole.

[0034] When the short sleeper body 1 is vibrated, it moves downwards, causing the support rod 23 and pressure plate 24 to slide within the groove of the pre-embedded base 21. During sliding, the support rod 23 moves within the limiting plate 29, which limits its sliding position to prevent displacement. Simultaneously, the pressure plate 24 compresses the shock-absorbing pad 25, causing it to deform and absorb some of the vibration energy. At the same time, the compression block 26 at the bottom of the short sleeper body 1 compresses the buffer pad 27, further absorbing and dispersing vibration energy, thus achieving vibration reduction. The noise reduction pad 28, wrapped around the connection between the pre-embedded base 21 and the short sleeper body 1, effectively blocks the transmission of vibration-generated noise, thus reducing noise.

[0035] Unscrew bolt 33 from the threaded hole on the surface of the disassembly plate 32. Bolt 33 originally fixed the disassembly plate 32 to the surface of the embedded base 21. After unscrewing it, the connection between the disassembly plate 32 and the embedded base 21 is released. By pulling the disassembly plate 32 connected to the shock-absorbing pad 25, and using the connecting rod 31, the shock-absorbing pad 25 can be pulled out from the clearance groove on the surface of the embedded base 21. Since the shock-absorbing pad 25 is slidably connected in the clearance groove, the extraction operation can be completed relatively easily without the fixing of bolt 33.

[0036] Use the appropriate tool to unscrew the bolt 35 from the threaded hole on the surface of one of the noise-reducing pads 28. Bolt 35 passes through the noise-reducing pad 28 and is threaded into the threaded hole on the surface of the mounting plate 34. Unscrewing it will release the fixed connection between the two noise-reducing pads 28, allowing the mounting plate 34 to be pulled out from the mounting groove on the surface of the other noise-reducing pad 28, thus separating the two noise-reducing pads 28. Afterward, remove the noise-reducing pad 28 from the connection between the embedded base 21 and the short sleeper body 1.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing and noise-reducing short sleeper comprising a short sleeper body (1), characterized in that: The surface of the short sleeper body (1) is equipped with a shock absorption and noise reduction component (2); The vibration damping and noise reduction component (2) includes a pre-embedded base (21). The bottom of the short sleeper body (1) is provided with a pre-embedded base (21). A pre-embedded block (22) is installed at the bottom of the pre-embedded base (21). Support rods (23) are symmetrically installed at the bottom of the short sleeper body (1). A pressure plate (24) is installed between the two support rods (23). A groove adapted to the pressure plate (24) is opened on the surface of the pre-embedded base (21). The pressure plate (24) is slidably connected in this groove, and a shock-absorbing pad (22) is installed at the bottom of this groove. 5) The shock-absorbing pad (25) is attached to the pressure plate (24). An extrusion block (26) is installed at the bottom of the short sleeper body (1). A buffer pad (27) is symmetrically arranged inside the pre-embedded base (21). The buffer pad (27) is connected to the shock-absorbing pad (25). The extrusion block (26) is attached to the buffer pad (27). A noise reduction pad (28) is symmetrically wrapped at the connection between the pre-embedded base (21) and the short sleeper body (1). A disassembly and replacement component (3) is installed on the surface of the pre-embedded base (21).

2. The shock-absorbing and noise-reducing short tie of claim 1, wherein: The pre-embedded base (21) is equipped with a limiting plate (29), and the support rod (23) is slidably connected inside the limiting plate (29).

3. The shock-absorbing and noise-reducing short tie of claim 2, wherein: The surface of the pre-embedded base (21) is equipped with a pre-embedded wire plate (210).

4. The shock-absorbing and noise-reducing short tie of claim 3, wherein: One of the buffer pads (27) has a positioning block (211) mounted on one side surface, and the positioning block (211) is inserted into a positioning groove opened on the surface of the other buffer pad (27).

5. A shock-absorbing and noise-reducing short tie according to claim 4, characterized in that: The noise reduction pad (28) is closely attached to the outer surface of the short sleeper body (1) and the pre-embedded base (21).

6. The shock-absorbing and noise-reducing short tie of claim 1, wherein: The disassembly and replacement assembly (3) includes a connecting rod (31). The connecting rod (31) is installed on one side surface of the shock-absorbing pad (25). The surface of the pre-embedded base (21) is provided with a relief groove that is compatible with the shock-absorbing pad (25). The shock-absorbing pad (25) is slidably connected inside the relief groove. One end of the connecting rod (31) extends to the outside of the pre-embedded base (21) and is connected to the disassembly plate (32) provided outside the pre-embedded base (21). A bolt (33) is threaded into the threaded hole on the surface of the disassembly plate (32). One end of the bolt (33) passes through the disassembly plate (32) and is threaded into the threaded hole on the surface of the pre-embedded base (21).

7. A shock-absorbing and noise-reducing short tie tamper according to claim 6, characterized in that: A mounting plate (34) is symmetrically mounted on the surface of one of the noise reduction pads (28). The mounting plate (34) is inserted into a mounting groove opened on the surface of the other noise reduction pad (28). A bolt (35) is threaded into a threaded hole opened on the surface of the other noise reduction pad (28). One end of the bolt (35) passes through the noise reduction pad (28) and is threaded into the threaded hole opened on the surface of the mounting plate (34).

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