Spliced sound barrier
By introducing I-beam rods, bevel gear structures and sound-absorbing materials into the spliced sound barrier, the small problem of noise contact surfaces caused by fixed installation is solved, and the noise reduction effect and stability of the sound barrier are improved.
Patent Information
- Application Number
- CN202422616394.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-29
AI Technical Summary
After the existing splicing sound barrier is installed and fixed in different noise source height environments, the noise contact surface is small, affecting the noise reduction effect.
A spliced sound barrier is designed to achieve height adjustment of the sound insulation board through I-bars, connecting components and bevel gear structures, and is equipped with sound-absorbing cotton, mesh plates, damping springs and guide grooves to enhance noise absorption and shock absorption.
It realizes flexible adjustment of the height of the sound insulation board, improves the noise contact surface and absorption capacity, and enhances the overall noise reduction effect and structural stability.
Smart Images
Figure CN223255886U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sound barriers, in particular to a spliced sound barrier. Background Art
[0002] A sound barrier is a device used to reduce noise propagation. It mainly blocks noise through physical isolation to achieve the effect of reducing noise interference. It is a facility inserted between the sound source and the receiver. By splicing multiple units or modules to form a continuous barrier, the propagation of sound waves has a significant additional attenuation.
[0003] Existing spliced sound barriers are widely used in urban roads, highways, railways, and urban rail transit. Part of the sound waves will be reflected back to the direction of the sound source, and part of the sound waves will bypass the sound barrier and continue to propagate. During long-term use observation, it was found that when the existing spliced sound barriers are installed, U-shaped steel and steel columns are usually used for auxiliary fixation. After installation, the height of the sound barrier is fixed. The height of the noise source is different in different usage environments, and the fixed position of the sound barrier will lead to a small contact surface with the noise, affecting the noise reduction effect.
[0004] To this end, the utility model provides a spliced sound barrier. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, a spliced sound barrier is proposed.
[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: the spliced sound barrier described in the present invention comprises a plurality of I-beams; a fixing frame is fixedly connected to the bottom of the I-beam; a connecting assembly is provided at the bottom of the fixing frame; a mounting plate is fixedly connected to the bottom of the connecting assembly; a pair of sound insulation boards are slidably connected to the middle parts of the I-beams; a through groove is opened in the middle part of the I-beam; the through groove is close to the bottom part of the I-beam; a screw is rotatably connected in the through groove; a slider is threadedly connected to the middle part of the screw; a pair of baffles are fixed to the side walls of the slider; the pair of baffles are symmetrically arranged; a first bevel gear is fixed to the middle part of the slider; the side walls of the I-beam are rotatably connected to a connecting rod; the end of the connecting rod is fixed to a second bevel gear; the second bevel gear and the first bevel gear are meshed with each other; through the above structure, a connecting rod is provided to connect the second bevel gear, and the first bevel gear, the screw and the baffle are cooperated to facilitate the adjustment of the installation height of the sound insulation board to adapt to different noise heights, so as to reduce the situation where the sound insulation effect is affected by different noise heights during fixed installation.
[0007] Preferably, a square groove is opened in the middle of the sound insulation board; sound-absorbing cotton is fixedly connected to the side wall of the square groove; the sound-absorbing cotton is close to the inner side of the square groove; a mesh plate is fixedly connected to the side wall of the square groove; the mesh plate is close to the outer side of the square groove; through the above structure, the sound-absorbing cotton and the mesh plate are arranged to absorb part of the noise to reduce the propagation energy of the noise, so as to improve the overall sound insulation and noise reduction effect.
[0008] Preferably, a slide plate is slidably connected to the top of the sound insulation board; the slide plate is connected to the I-beam by high-strength bolts; through the above structure, the slide plate and the high-strength bolts are provided, and the top of the sound insulation board can be extended. At this time, the contact surface between the sound insulation board and the noise can be increased to improve the overall sound insulation and noise reduction effect.
[0009] Preferably, the connecting assembly includes a pair of connecting plates; the connecting plates are fixed to the bottom of the fixing frame; a plurality of damping springs are fixed to the bottom of the connecting plates; the damping springs are fixed to the top of the mounting plate; through the above structure, the damping springs are provided to buffer and reduce shock to the overall structure, so as to reduce the overall shaking, resulting in secondary noise and loosening of the connecting structure, so as to improve the overall noise reduction effect and stability.
[0010] Preferably, a guide groove is provided on the side wall of the skateboard; the guide groove is close to the side where the square groove is located; the guide groove is an arc-shaped structure; through the above structure, the guide groove can guide the noise to reduce the situation where the noise passes through the skateboard and propagates to the outside, so as to improve the overall noise reduction effect.
[0011] Preferably, the bottom of the connecting plate and the top of the mounting plate are fixed with elastic cloth; the elastic cloth is made of waterproof material; through the above structure, the provision of elastic cloth can reduce the dust and moisture from entering the damping spring and causing corrosion of the damping spring, thereby affecting its normal operation.
[0012] The beneficial effects of the utility model are as follows:
[0013] 1. The spliced sound barrier described in the utility model, by setting a connecting rod to connect the second bevel gear, cooperates with the first bevel gear, the screw and the baffle, and can facilitate the adjustment of the installation height of the sound insulation board to adapt to the height of different noises, so as to reduce the situation where the sound insulation effect is affected by different noise heights during fixed installation.
[0014] 2. The spliced sound barrier described in the present invention can absorb part of the noise by setting sound-absorbing cotton and mesh panels to reduce the propagation energy of the noise and improve the overall sound insulation and noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 It is a three-dimensional diagram of the utility model;
[0017] Figure 2 This is a structural diagram of the mesh plate of the utility model;
[0018] Figure 3 It is a structural diagram of the screw in the utility model;
[0019] Figure 4 This is a schematic structural diagram of the first bevel gear in the present utility model;
[0020] Figure 5 It is a structural schematic diagram of the slide plate in the utility model.
[0021] Legend:
[0022] 1. I-beam; 11. Fixing frame; 12. Mounting plate; 13. Sound insulation board; 14. Through slot; 15. Screw; 16. Slider; 17. Baffle; 18. First bevel gear; 19. Connecting rod; 110. Second bevel gear; 2. Square slot; 21. Sound-absorbing cotton; 22. Mesh plate; 3. Slide plate; 31. High-strength bolt; 4. Connecting plate; 41. Damping spring; 5. Guide slot; 6. Elastic cloth; 7. Anti-seismic pad. DETAILED DESCRIPTION
[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] Specific examples are given below.
[0025] like Figures 1 to 4As shown, a spliced sound barrier according to an embodiment of the present invention comprises a plurality of I-beams 1; a fixing frame 11 is fixedly connected to the bottom of the I-beam 1; a connecting assembly is provided at the bottom of the fixing frame 11; a mounting plate 12 is fixedly connected to the bottom of the connecting assembly; a pair of sound insulation boards 13 are slidably connected to the middle of the I-beams 1; a through slot 14 is provided in the middle of the I-beam 1; the through slot 14 is close to the bottom of the I-beam 1; a screw 15 is rotatably connected in the through slot 14; the screw 15 is threadedly connected in the middle Slider 16; a pair of baffles 17 are fixed to the side wall of the slider 16; the pair of baffles 17 are symmetrically arranged; a first bevel gear 18 is fixed to the middle of the slider 16; a connecting rod 19 is rotatably connected to the side wall of the I-beam 1; a second bevel gear 110 is fixed to the end of the connecting rod 19; the second bevel gear 110 and the first bevel gear 18 are meshed with each other; when working, first fix the mounting plate 12 to the embedded base during installation, at this time, the sound insulation board 13 can be placed between the pair of I-beams 1, and then Then insert the sound insulation board 13 from the top of the I-beam 1, and the splicing of the entire sound barrier can be completed. When the noise level is different, the second bevel gear 110 can be driven to rotate by rotating the connecting rod 19. At this time, the second bevel gear 110 will drive the first bevel gear 18 and the screw 15 to rotate. At this time, the slider 16 and the baffle 17 can slide in the through groove 14. When the connecting rod 19 rotates clockwise, the baffle 17 will rise. When the connecting rod 19 rotates counterclockwise, the baffle 17 will fall. When it is moved to a suitable height, the sound insulation board 13 is inserted between the I-beams 1 and the baffle 17 supports the sound insulation board 13 from below to change the height of the sound insulation board 13 relative to the installation position. Through the above structure, a connecting rod 19 is provided to connect the second bevel gear 110, and cooperate with the first bevel gear 18, the screw 15 and the baffle 17 to facilitate the adjustment of the installation height of the sound insulation board 13 to adapt to different noise heights, so as to reduce the situation where the sound insulation effect is affected by different noise heights during fixed installation.
[0026] like Figure 1 and Figure 2 As shown, a square groove 2 is opened in the middle of the sound insulation board 13; the side wall of the square groove 2 is fixedly connected to the sound-absorbing cotton 21; the sound-absorbing cotton 21 is close to the inner side of the square groove 2; the side wall of the square groove 2 is fixedly connected to the mesh plate 22; the mesh plate 22 is close to the outer side of the square groove 2; during operation, when the sound insulation board 13 is produced and processed, after the square groove 2 is opened on one side of the sound insulation board 13, the sound-absorbing cotton 21 is fixed on the inner side of the square groove 2, and then the mesh plate 22 is used to close the square groove 2. When the sound insulation board 13 is installed, the noise will pass through the mesh holes between the mesh plates 22 and contact the sound-absorbing cotton 21 inside. At this time, the sound-absorbing cotton 21 will absorb part of the noise. Through the above structure, the sound-absorbing cotton 21 and the mesh plate 22 are set to absorb part of the noise to reduce the propagation energy of the noise, so as to improve the overall sound insulation and noise reduction effect.
[0027] like Figure 2 and Figure 5 As shown, the top of the sound insulation board 13 is slidably connected to a slide plate 3; the slide plate 3 is connected to the I-beam 1 by a high-strength bolt 31; during operation, after adjusting the height of the sound insulation board 13, the slide plate 3 is pulled from the top of the sound insulation board 13 to make the top of the slide plate 3 level with the top of the I-beam 1, and then the slide plate 3 and the I-beam 1 are fixed by the high-strength bolt 31. Through the above structure, the slide plate 3 and the high-strength bolt 31 are set, and the top of the sound insulation board 13 can be extended. At this time, the contact surface between the sound insulation board 13 and the noise can be increased to improve the overall sound insulation and noise reduction effect.
[0028] like Figure 3 As shown, the connecting assembly includes a pair of connecting plates 4; the connecting plates 4 are fixed to the bottom of the fixing frame 11; a plurality of damping springs 41 are fixed to the bottom of the connecting plate 4; the damping springs 41 are fixed to the top of the mounting plate 12; during operation, after the overall installation is fixed in position, the airflow will move at high speed when the vehicle is traveling. When the airflow impacts the overall structure, it will cause strong vibrations. When the vibrations are transmitted to the plurality of damping springs 41, the damping springs 41 will continuously contract and rebound to achieve buffering and shock absorption effects. Through the above structure, the damping springs 41 are provided to buffer and absorb shock to the overall structure, so as to reduce the overall shaking, secondary noise and loosening of the connecting structure, so as to improve the overall noise reduction effect and stability.
[0029] like Figure 2 As shown, a guide groove 5 is provided on the side wall of the skateboard 3; the guide groove 5 is close to the side where the square groove 2 is located; the guide groove 5 is an arc-shaped structure; during operation, when noise contacts the surface of the skateboard 3, the guide groove 5 will guide the noise, so that the noise moves inward along the curvature of the guide groove 5. Through the above structure, the guide groove 5 can guide the noise to reduce the noise from passing through the skateboard 3 and propagating outward, thereby improving the overall noise reduction effect.
[0030] like Figure 3 As shown, the bottom of the connecting plate 4 and the top of the mounting plate 12 are fixedly connected with an elastic cloth 6; the elastic cloth 6 is made of waterproof material; when working, there will be more dust and moisture when used in an outdoor environment. When dust and moisture enter the damping spring 41, it will cause corrosion of the damping spring 41. At this time, the elastic cloth 6 is located on the outside of the damping spring 41 to cover it for protection. Through the above structure, the elastic cloth 6 can reduce the dust and moisture from entering the damping spring 41, causing corrosion of the damping spring 41, thereby affecting its normal operation.
[0031] like Figure 5As shown, an anti-seismic pad 7 is sleeved on the middle part of the high-strength bolt 31; the anti-seismic pad 7 is located between the slide plate 3 and the I-beam 1; during operation, when the slide plate 3 and the I-beam 1 are fixed by the high-strength bolt 31, the anti-seismic pad 7 can be placed between the slide plate 3 and the I-beam 1, and then the high-strength bolt 31 can be passed through the anti-seismic pad 7, and then the high-strength bolt 31 can be tightened. Through the above structure, the provision of the anti-seismic pad 7 can reduce the gap between the slide plate 3 and the I-beam 1, and reduce the vibration between the sound insulation board 13 and the I-beam 1, thereby improving the stability of the position of the sound insulation board 13.
[0032] Working principle: During installation, first fix the mounting plate 12 to the embedded base. At this time, the sound insulation board 13 can be placed between a pair of I-beams 1. Then insert the sound insulation board 13 from the top of the I-beam 1. At this time, the splicing of the entire sound barrier can be completed. When the noise level is different, the second bevel gear 110 can be driven to rotate by rotating the connecting rod 19. At this time, the second bevel gear 110 will drive the first bevel gear 18 and the screw 15 to rotate. At this time, the slider 16 and the baffle 17 can be slid in the through groove 14. When the connecting rod 19 rotates clockwise, it will drive the baffle 17 to rise. When When the connecting rod 19 rotates counterclockwise, the baffle 17 will be driven down. When the baffle 17 moves to the appropriate height, the sound insulation board 13 is inserted between the I-beams 1 and the baffle 17 will support the sound insulation board 13 from below to achieve the change of the height of the sound insulation board 13 relative to the installation position. When the sound insulation board 13 is produced and processed, after the square groove 2 is opened on one side of the sound insulation board 13, the sound-absorbing cotton 21 is fixed on the inner side of the square groove 2, and then the square groove 2 is closed with the mesh plate 22. When the sound insulation board 13 is installed, the noise will pass through the mesh between the mesh plates 22 and the sound-absorbing cotton inside. 21 contact, at this time the sound-absorbing cotton 21 will absorb part of the noise, after adjusting the height of the sound insulation board 13, pull the slide plate 3 from the top of the sound insulation board 13, so that the top of the slide plate 3 is level with the top of the I-beam 1, and then fix the slide plate 3 and the I-beam 1 with high-strength bolts 31. After the overall installation is fixed in position, when the vehicle is running, it will drive the airflow to move at high speed. When the airflow impacts the whole, it will cause strong vibration. When the vibration is transmitted to the multiple damping springs 41, the damping springs 41 will continuously contract and rebound to achieve the effect of buffering and shock absorption. When the sound contacts the surface of the skateboard 3, the guide groove 5 will guide the noise and make the noise move inward along the curvature of the guide groove 5. When used in an outdoor environment, there will be more dust and moisture. When dust and moisture enter the damping spring 41, the damping spring 41 will be corroded. At this time, the elastic cloth 6 is located on the outside of the damping spring 41 to cover it for protection. When the skateboard 3 and the I-beam 1 are fixed with the high-strength bolts 31, the anti-vibration pad 7 can be placed between the skateboard 3 and the I-beam 1, and then the high-strength bolts 31 can be passed through the anti-vibration pad 7, and then the high-strength bolts 31 can be tightened.
[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A spliced sound barrier comprising a plurality of I-shaped rods (1); characterized in that: The bottom of the I-beam (1) is fixed with a fixing frame (11); a connecting assembly is provided at the bottom of the fixing frame (11); a mounting plate (12) is fixed at the bottom of the connecting assembly; a pair of sound insulation plates (13) are slidably connected to the middle of the I-beam (1); a through slot (14) is provided at the middle of the I-beam (1); the through slot (14) is close to the bottom of the I-beam (1); a screw rod (15) is rotatably connected in the through slot (14); a slider (16) is threadedly connected to the middle of the screw rod (15); a pair of baffles (17) are fixed to the side walls of the slider (16); the pair of baffles (17) are symmetrically arranged; a first bevel gear (18) is fixed to the middle of the slider (16); a connecting rod (19) is rotatably connected to the side wall of the I-beam (1); a second bevel gear (110) is fixed to the end of the connecting rod (19); the second bevel gear (110) and the first bevel gear (18) are meshed with each other.
2. A spliced sound barrier according to claim 1, characterized in that: A square groove (2) is provided in the middle of the sound insulation board (13); a sound-absorbing cotton (21) is fixedly connected to the side wall of the square groove (2); the sound-absorbing cotton (21) is close to the inner side of the square groove (2); a mesh plate (22) is fixedly connected to the side wall of the square groove (2); the mesh plate (22) is close to the outer side of the square groove (2).
3. The spliced sound barrier according to claim 1, characterized in that: The top of the sound insulation board (13) is slidably connected to a slide plate (3); the slide plate (3) is connected to the I-beam (1) via high-strength bolts (31).
4. The spliced sound barrier according to claim 1, characterized in that: The connecting assembly comprises a pair of connecting plates (4); the connecting plates (4) are fixed to the bottom of the fixing frame (11); a plurality of damping springs (41) are fixed to the bottom of the connecting plates (4); and the damping springs (41) are fixed to the top of the mounting plate (12).
5. The spliced sound barrier according to claim 3, characterized in that: A guide groove (5) is provided on the side wall of the slide plate (3); the guide groove (5) is close to the side where the square groove (2) is located; and the guide groove (5) is an arc-shaped structure.
6. The spliced sound barrier according to claim 4, characterized in that: The bottom of the connecting plate (4) and the top of the mounting plate (12) are fixedly connected with an elastic cloth (6); the elastic cloth (6) is made of waterproof material.
7. The spliced sound barrier according to claim 3, characterized in that: An anti-vibration pad (7) is sleeved on the middle of the high-strength bolt (31); the anti-vibration pad (7) is located between the slide plate (3) and the I-beam (1).