Railway construction construction noise reduction device
By designing a railway construction noise reduction device with a splicing structure and a detachable back panel, the problems of high cost, poor adaptability and short service life of existing devices have been solved, achieving efficient sound insulation and environmentally friendly disassembly and assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN KAIXIN RAILWAY ENGINEERING CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-26
AI Technical Summary
Existing noise reduction devices for railway construction are costly to manufacture and install, have limited height, are difficult to adapt to construction machinery of different heights, and are difficult to clean and maintain internally, affecting their service life.
A noise reduction device comprising a sound insulation panel and a base was designed, employing a splicing section and a groove structure. The sound insulation panel can be inserted into the base. The splicing panel consists of an outer shell, louvers, sound-absorbing cotton, and vacuum glass. The back panel is removable for cleaning or replacement of the sound-absorbing cotton. The splicing structure is stable and environmentally friendly.
It improves the utilization rate of sound insulation materials, enhances the sound insulation effect, adapts to construction needs at different heights, and extends the service life of the device.
Smart Images

Figure CN224413326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction noise reduction technology, and in particular to a noise reduction device for railway construction. Background Technology
[0002] Railway construction refers to a series of construction activities during the railway construction process, including the technologies used in various stages such as surveying and design, construction, maintenance, and reconstruction. Specifically, railway construction technology refers to the general term for the technical methods, operating procedures, and construction specifications adopted in railway construction, covering technical steps such as roadbed treatment, track laying, bridge and tunnel construction, and equipment installation. The noise generated by railway construction is mainly due to the sounds produced by construction machinery, vehicle operation, and blasting operations. This noise can have a certain impact on the lives and work of nearby residents. Construction noise can interfere with the normal lives of nearby residents, affecting their rest and sleep quality; construction noise near office areas can affect the concentration and work efficiency of employees; long-term exposure to noise environments may lead to mental health problems such as anxiety and irritability.
[0003] To reduce the impact of railway construction noise on the surrounding environment, construction companies typically take the following measures: selecting low-noise construction machinery and vehicles to reduce noise emissions; avoiding high-noise construction during residents' rest hours and rationally scheduling construction periods; and setting up sound barriers around the construction area to reduce noise transmission. However, existing railway construction noise reduction devices are costly to manufacture and install, and the damage caused by disassembly after construction is unavoidable, which limits their widespread application. Furthermore, existing noise reduction devices have limited height, while construction machinery varies in height, and they are ineffective at reducing noise from taller machinery. To ensure the sound insulation effect is not compromised, regular maintenance and cleaning of the noise reduction devices are required. However, existing railway construction noise reduction devices are limited to surface cleaning, making internal cleaning and maintenance difficult, thus leading to internal damage and aging, affecting the lifespan of the noise reduction devices. Utility Model Content
[0004] The purpose of this utility model is to provide a noise reduction device for railway construction, which effectively improves the utilization rate of sound insulation materials, overcomes the height limitations of construction noise reduction devices, improves the sound insulation and noise reduction effect, and extends the service life of sound insulation panels.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] A noise reduction device for railway construction includes a sound insulation panel and a base. The base has internal grooves, and the sound insulation panels are inserted into these grooves. Several sound insulation panels are provided, each including a main panel and a splicing part. Two sound insulation panels are connected via the splicing part, which is positioned around the main panel. The main panel is inserted into the groove via the splicing part. The splicing part includes an insert plate, a trapezoidal groove, a splicing plate, a trapezoidal block, a recess, and a protrusion. The insert plate is welded to the bottom of the main panel. The insert plate has a specific shape. The insert plate is positioned by the groove and the main board is fixed to the base by the insert plate. The top of the main board is provided with a trapezoidal groove, and there are several trapezoidal grooves arranged on the top of the main board and the splicing plate. The bottom surface of the splicing plate is welded with a trapezoidal block, and the shape of the trapezoidal block matches the trapezoidal groove. The splicing plate is connected to the main board by mortise and tenon joints through the trapezoidal block and the trapezoidal groove. The groove is located on the right side of the sound insulation board, and the protrusion is located on the left side of the sound insulation board. The two sound insulation boards are inserted through the groove and the protrusion.
[0007] Furthermore, the motherboard includes a shell, louvers, sound-absorbing cotton, a frame, and vacuum glass. The shell is in the shape of a cuboid plate. Several louvers are arranged on the front of the shell and are located at the top and bottom ends of the motherboard. Sound-absorbing cotton is placed inside the shell and is positioned behind the louvers. A frame is embedded inside the shell and is in the shape of a square frame. The shell is welded to the outside of the frame, and the vacuum glass is glued to the inside of the frame.
[0008] Furthermore, the back of the outer shell is provided with spring clips and a back plate. The spring clips are welded to the left and right ends of the outer shell, and the back plate is snapped onto the back of the outer shell by the spring clips. The inner side of the back plate is in close contact with the back of the sound-absorbing cotton.
[0009] Furthermore, the frame extends through the front and back of the motherboard, the outer shell surrounds the sides of the frame, the sound-absorbing cotton is fixed inside the outer shell via a back panel, and the splicing panel consists of the outer shell, louvers, and sound-absorbing cotton.
[0010] In summary, the beneficial technical effects of this utility model are as follows:
[0011] 1. The application of splicing parts facilitates the disassembly and assembly of noise reduction devices, avoids damage to the sound insulation panels when disassembling them after construction, facilitates the reuse of sound insulation panels, and improves the utilization rate of sound insulation materials.
[0012] 2. The use of splicing panels increases the height of the sound insulation panels, which can be adjusted according to the construction height range, thus improving the sound insulation effect and ensuring the rational use of sound insulation materials;
[0013] 3. A back panel was selected, which can be removed to clean or replace the sound-absorbing cotton, thus extending the service life of the sound insulation panel. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the mainboard and splicing part of this utility model;
[0016] Figure 3 This is a schematic diagram of the rear structure of this utility model.
[0017] 1. Sound insulation panel; 2. Base; 11. Main board; 12. Splicing part; 21. Groove; 111. Outer shell; 112. Louvered holes; 113. Sound-absorbing cotton; 114. Frame; 115. Vacuum glass; 121. Insert plate; 122. Trapezoidal groove; 123. Splicing plate; 124. Trapezoidal block; 125. Groove; 126. Protrusion; 1111. Spring buckle; 1112. Back panel. Detailed Implementation
[0018] The present invention will be further described in detail below with reference to the accompanying drawings.
[0019] This utility model discloses a noise reduction device for railway construction, comprising a sound insulation panel 1 and a base 2. The sound insulation panel 1 is used for sound insulation and noise reduction. The sound insulation panel 1 is fixed around the railway construction area via the base 2. The base 2 has a groove 21 inside, into which the sound insulation panel 1 is inserted. The groove 21 confines the sound insulation panel 1 within the base 2, preventing it from moving left or right. Several sound insulation panels 1 are provided, and several sound insulation panels 1 are connected to form a sound barrier. The sound insulation panel 1 includes a main panel 11 and a splicing part 12. Two sound insulation panels 1 are connected via the splicing part 12, which is located around the main panel 11. The main panel 11 is inserted into the groove 21 via the splicing part 12. The splicing structure of the splicing part 12 facilitates the assembly and disassembly of the noise reduction device, avoiding damage to the sound insulation panel 1 when disassembling it after construction, and facilitating the reuse of the sound insulation panel 1, thus improving the utilization rate of the sound insulation material. See details below. Figure 1 .
[0020] The splicing part 12 includes an insert plate 121, a trapezoidal groove 122, a splicing plate 123, a trapezoidal block 124, a groove 125, and a protrusion 126. The insert plate 121 is welded to the bottom of the main plate 11. The shape of the insert plate 121 matches the groove 21. The insert plate 121 is limited by the groove 21. The main plate 11 is fixed to the base 2 by the insert plate 121, making the main plate 11 stable on the base 2 and facilitating the assembly and disassembly of the main plate 11 on the base 2. The top of the main plate 11 is provided with a trapezoidal groove 122. Several trapezoidal grooves 122 are provided and arranged on the top of the main plate 11 and the splicing plate 123. The bottom surface of the splicing plate 123 is welded with a trapezoidal block 124. The shape of the trapezoidal block 124 matches the trapezoidal groove 122. The splicing plate 123 is mortised and tenoned to the main plate 11 through the trapezoidal block 124 and the trapezoidal groove 122. The precise interlocking of the grooves ensures the splicing plate 123 is securely attached to the main plate 11. The sequential connection of the splicing panels 123 results in a stable structure with strong seismic resistance. It eliminates the need for auxiliary materials such as metal nails and chemical adhesives, making it more environmentally friendly and easier to maintain. The groove 125 is located on the right side of the sound insulation panel 1, and the protrusion 126 is located on the left side. The two sound insulation panels 1 are connected by the groove 125 and the protrusion 126. The various structures of the splicing part 12 mutually restrict each other, ensuring a stable connection structure for the sound insulation panels 1. The sound insulation panels 1 can be disassembled and reassembled without damage according to the disassembly sequence, allowing for reuse. The splicing panel 123 consists of a shell 111, louvers 112, and sound-absorbing cotton 113. The splicing panels 123 can be stacked layer by layer. The bottom end of the protrusion 126 of the splicing panel 123 has an extension, which inserts into the main board 11, ensuring the stability of the splicing panel 123 on the main board 11. See details... Figure 2 .
[0021] The mainboard 11 includes a housing 111, louvers 112, sound-absorbing cotton 113, a frame 114, and vacuum glass 115. The housing 111 is rectangular and made of 304 stainless steel. Several louvers 112 are arranged on the front of the housing 111, and the louvers 112 are located at the top and bottom ends of the mainboard 11. Sound-absorbing cotton 113 is placed inside the housing 111, behind the louvers 112. The combination of the louvers 112 and the sound-absorbing cotton 113 is used for sound absorption. For noise reduction, a frame 114 is embedded inside the outer shell 111. The frame 114 is square and extends through the front and back of the main board 11. The outer shell 111 surrounds the sides of the frame 114. The outer shell 111 is welded to the outside of the frame 114. Vacuum glass 115 is glued to the inside of the frame 114. The vacuum glass 115 uses a double-layer glass plate and a vacuum sound insulation layer for sound insulation and noise reduction. The combination of sound absorption and sound insulation effectively reduces noise at different frequencies, has a wide range of applications, and effectively improves the noise reduction effect. The back of the outer casing 111 is provided with spring clips 1111 and a back plate 1112. The spring clips 1111 are welded to the left and right ends of the outer casing 111. The back plate 1112 is snapped onto the back of the outer casing 111 by the spring clips 1111. The inner side of the back plate 1112 is in close contact with the back of the sound-absorbing cotton 113. The sound-absorbing cotton 113 is fixed inside the outer casing 111 by the back plate 1112. The back plate 1112 can be opened on the back of the outer casing 111 through the spring clips 1111. By opening the back plate 1112, the sound-absorbing cotton 113 can be removed. After removal, the sound-absorbing cotton 113 can be cleaned or replaced, extending the service life of the sound insulation panel 1. See details. Figure 2 , Figure 3 .
[0022] Example
[0023] Operating procedures
[0024] 1. Insert the main board 11 of the first sound insulation board 1 into the base 2, and then stack the splicing boards 123 in sequence according to the required height;
[0025] 2. Install the required splicing plates 123 for each sound insulation panel 1 on the main board 11 in advance. Then, insert the protrusions 126 of the spliced sound insulation panels 1 into the grooves 125 of the sound insulation panels 1 on the base 2 from above until the insert plate 121 is fully inserted into the groove 21 to form a sound insulation barrier.
[0026] 3. During maintenance and cleaning, press the spring clip 1111 to remove the back panel 1112, and then remove the sound insulation cotton for cleaning and maintenance;
[0027] 4. After construction is completed, reverse the installation sequence to separate and disassemble the parts, and then store them for reuse in the next construction.
[0028] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A noise reduction device for railway construction, comprising a sound insulation panel (1) and a base (2), characterized in that: The base (2) has a groove (21) inside. The sound insulation board (1) is inserted into the groove (21). Several sound insulation boards (1) are provided. The sound insulation board (1) includes a main board (11) and a splicing part (12). Two sound insulation boards (1) are connected by the splicing part (12). The splicing part (12) is arranged around the main board (11). The main board (11) is inserted into the groove (21) by the splicing part (12). The splicing part (12) includes a insert plate (121), a trapezoidal groove (122), a splicing plate (123), a trapezoidal block (124), a groove (125), and a protrusion (126). The insert plate (121) is welded to the bottom of the main board (11). The shape of the insert plate (121) matches the groove (21). The main board (11) is fixed to the base (2) by the insertion plate (121) through the concave-convex groove (21). The top of the main board (11) is provided with a trapezoidal groove (122). Several trapezoidal grooves (122) are provided and are arranged on the top of the main board (11) and the splicing plate (123). The bottom surface of the splicing plate (123) is welded with a trapezoidal block (124). The trapezoidal block (124) and the trapezoidal groove (122) are in the same shape. The splicing plate (123) is connected to the main board (11) by the trapezoidal block (124) and the trapezoidal groove (122) in sequence. The groove (125) is provided on the right side of the sound insulation plate (1). The protrusion (126) is provided on the left side of the sound insulation plate (1). The two sound insulation plates (1) are connected by the groove (125) and the protrusion (126).
2. The railway construction noise reduction device according to claim 1, characterized in that: The main board (11) includes a shell (111), louvers (112), sound-absorbing cotton (113), a frame (114), and vacuum glass (115). The shell (111) is in the shape of a cuboid plate. Several louvers (112) are arranged on the front of the shell (111). The louvers (112) are located at the upper and lower ends of the main board (11). Sound-absorbing cotton (113) is placed inside the shell (111). The sound-absorbing cotton (113) is located behind the louvers (112). The frame (114) is embedded inside the shell (111). The frame (114) is in the shape of a square frame. The shell (111) is welded to the outside of the frame (114). The vacuum glass (115) is glued to the inside of the frame (114).
3. The railway construction noise reduction device according to claim 2, characterized in that: The back of the outer shell (111) is provided with a spring buckle (1111) and a back plate (1112). The spring buckle (1111) is welded to the left and right ends of the outer shell (111). The back plate (1112) is snapped onto the back of the outer shell (111) by the spring buckle (1111). The inner side of the back plate (1112) is in close contact with the back of the sound-absorbing cotton (113).
4. The railway construction noise reduction device according to claim 3, characterized in that: The frame (114) extends through the front and back of the main board (11), the outer shell (111) surrounds the side of the frame (114), the sound-absorbing cotton (113) is fixed inside the outer shell (111) by the back plate (1112), and the splicing plate (123) is composed of the outer shell (111), louvers (112) and sound-absorbing cotton (113).