Efficient sound-absorbing sound barrier unit

Abstract

The utility model discloses an efficient sound-absorbing sound barrier unit, and belongs to the technical field of sound barriers. Comprising a bottom fixing plate, a U-shaped sliding groove is formed in the middle of the bottom fixing plate, first arc-shaped clamping grooves are symmetrically formed in the two opposite side faces of the U-shaped sliding groove, a plurality of sound insulation units are arranged on the bottom fixing plate in a spliced mode, sliding blocks are arranged at the lower ends of the sound insulation units, and the sliding blocks are slidably connected into the U-shaped sliding groove; second arc-shaped clamping grooves are symmetrically formed in the two side faces of the sliding block, limiting rods are arranged in cavities formed by oppositely arranging the first arc-shaped clamping grooves and the second arc-shaped clamping grooves, and the inner side surfaces of the first arc-shaped clamping grooves and the inner side surfaces of the second arc-shaped clamping grooves are in sliding contact with the outer surfaces of the limiting rods; the two ends of the limiting rod extend to the outer sides of the two ends of the bottom fixing plate, and locking sleeves are arranged at the two ends of the limiting rod correspondingly. According to the technical scheme, the problems that in the prior art, the splicing effect of sound barrier units is poor, and the splicing efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sound barrier, concretely relates to a high -efficient sound absorption sound barrier unit. BACKGROUND

[0002] With the acceleration of urbanization, environmental noise problems such as traffic noise, industrial noise are increasingly serious, and have caused adverse effects on people's quality of life and health. As an effective noise control means, sound barrier is widely used in noise sensitive areas such as expressway, railway, urban road, industrial area. The existing sound barrier is usually assembled by several sound insulation units, and these sound insulation units can be sound absorption panels, sound insulation panels or other types of acoustic materials.

[0003] However, the assembly of the sound barrier unit in the prior art has the following problems: the assembly between several sound insulation units usually needs to be carried out on site, and since the connection mode between the sound insulation units is complex (such as fixed on the base by bolts or welding), and the adjacent sound insulation units need to be accurately aligned manually, the assembly effect can be ensured, which leads to low assembly efficiency of the traditional assembly method, and increases the construction time and cost. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a high-efficiency sound absorption sound barrier unit to solve the problems of poor assembly effect and low assembly efficiency of the sound barrier unit in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A high-efficiency sound absorption sound barrier unit, comprising a bottom fixed plate, a U-shaped sliding groove is arranged in the middle of the bottom fixed plate, first arc-shaped clamping grooves are symmetrically arranged on the opposite sides of the U-shaped sliding groove, a plurality of sound insulation units are connected on the bottom fixed plate, a sliding block is arranged at the lower end of the sound insulation unit, the sliding block is connected in the U-shaped sliding groove in a sliding mode, second arc-shaped clamping grooves are symmetrically arranged on the two sides of the sliding block, a limiting rod is arranged in the cavity formed by the opposite arrangement of the first arc-shaped clamping groove and the second arc-shaped clamping groove, the inner surface of the first arc-shaped clamping groove and the second arc-shaped clamping groove is in sliding contact with the outer surface of the limiting rod, the two ends of the limiting rod extend to the outer side of the two ends of the bottom fixed plate, locking sleeves are arranged on the two ends of the limiting rod, the locking sleeves are threadedly connected on the end of the limiting rod, and the end surface of the locking sleeve is in close contact with the side surface of the sound insulation unit.

[0007] Further, a vertical plate is installed on one side of the bottom fixed plate, one end of the vertical plate is fixed on the bottom fixed plate, at least two vertical sliding rods are arranged on the vertical plate, one end of the sliding rod is fixed on the vertical plate, a connecting block is arranged on the sound insulation unit, and the connecting block is slidably connected to the sliding rod.

[0008] Further, a sealing strip is arranged between the contact surfaces of adjacent sound insulation units, and the sealing strip is slidably connected to the sliding rod.

[0009] Further, an extrusion sleeve is arranged outside the connecting block at the contact surface of adjacent sound insulation units, and the extrusion sleeve is threadedly connected to the sliding rod.

[0010] Further, end blocks are arranged at both ends of the bottom fixed plate, the end blocks are fixed on the bottom fixed plate, and the locking sleeve is located inside the end blocks.

[0011] Further, the sound insulation unit comprises a rectangular frame, a panel and a back plate are arranged at both ends of the rectangular frame respectively, the panel and the back plate are fixed on the rectangular frame, a sound-absorbing cotton layer is arranged between the panel and the back plate, a plurality of sound-absorbing holes are arranged on the panel, the sound-absorbing holes penetrate through the panel, and the sliding block is fixed on the rectangular frame.

[0012] Further, a plurality of concave spherical grooves are arranged on the panel, and the sound-absorbing holes are arranged in the concave spherical grooves.

[0013] The beneficial effects of the utility model lie in:

[0014] (1) in the technical scheme, through the setting of the first arc-shaped clamping groove, the second arc-shaped clamping groove, the U-shaped sliding groove and the limiting rod, the quick assembly of the plurality of sound insulation units can be realized, thereby simplifying the assembly steps and improving the assembly efficiency.

[0015] (2) in the technical scheme, the concave spherical groove is arranged on the panel of the sound insulation unit, the sound waves are reflected in multiple directions by the concave spherical surface, the intensity of the incident sound waves in a single direction is reduced, the sound energy in the original sound wave propagation direction is reduced, the sound waves collide with each other in the reflection process, thereby losing energy, and the use of the sound-absorbing cotton layer further enhances the sound-absorbing effect of the sound barrier unit, thereby achieving the purpose of efficient sound insulation.

[0016] The other advantages, objects and features of the utility model will be described in the subsequent specification, and are obvious to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained by the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0018] Fig. 1 This is a three-dimensional schematic diagram of the high-efficiency sound-absorbing sound barrier unit of this utility model;

[0019] Fig. 2 This is an exploded view of components such as the bottom fixing plate and the limiting rod in the high-efficiency sound-absorbing sound barrier unit of this utility model;

[0020] Fig. 3 This is a schematic diagram of the sound insulation unit in the high-efficiency sound-absorbing sound barrier unit of this utility model;

[0021] Fig. 4 This is a partial side view of the high-efficiency sound-absorbing sound barrier unit of this utility model.

[0022] The following labels are shown in the attached diagram:

[0023] 1. Bottom fixing plate; 2. U-shaped slide groove; 3. First arc-shaped slot; 4. Limiting rod; 5. Locking sleeve; 6. Mounting plate; 7. Fixing plate; 8. Slide rod; 9. Extrusion sleeve; 10. Sealing strip; 11. Sound insulation unit; 12. Slider; 13. Second arc-shaped slot; 14. Rectangular frame; 15. Panel; 16. Concave spherical groove; 17. Sound absorption hole; 18. Sound absorption cotton layer; 19. Back plate; 20. Connecting block; 21. End stop block. Detailed Implementation

[0024] like Figs. 1-4 As shown, a high-efficiency sound-absorbing barrier unit includes a bottom fixing plate 1, which can be understood as a rectangular metal fixing plate. A U-shaped groove 2 is provided in the middle of the bottom fixing plate 1. First arc-shaped slots 3 are symmetrically provided on opposite sides of the U-shaped groove 2. Several sound-insulating units 11 are spliced ​​onto the bottom fixing plate 1. A slider 12 is provided at the lower end of each sound-insulating unit 11. The slider 12 is slidably connected within the U-shaped groove 2, and the width of the slider 12 matches that of the U-shaped groove 2. Second arc-shaped slots 13 are symmetrically provided on both sides of the slider 12. A limiting rod 4 is provided in the cavity (circular cavity) formed by the first arc-shaped groove 3 and the second arc-shaped groove 13. The inner surfaces of the first arc-shaped groove 3 and the second arc-shaped groove 13 are in sliding contact with the outer surface of the limiting rod 4. The two ends of the limiting rod 4 extend to the outer sides of the two ends of the bottom fixing plate 1. A locking sleeve 5 is provided on both ends of the limiting rod 4. The locking sleeve 5 is threaded (which can be achieved by setting threads) to the end of the limiting rod 4. The end face of the locking sleeve 5 is in close contact with the side of the sound insulation unit 11.

[0025] The principle behind the above technical solution for achieving rapid assembly is as follows:

[0026] First, fix the bottom fixing plate 1 to the ground, which can be achieved through anchoring. Then, place the slider 12 of the sound insulation unit 11 into the sliding groove. At this time, the sound insulation unit 11 will not tip over due to the obstruction of the side wall of the U-shaped sliding groove 2. The sound insulation unit 11 can then be pushed to slide within the U-shaped sliding groove 2, thereby pushing the sound insulation unit 11 to the designated installation position. The sliding method is more labor-saving and does not require frequent relocation of the sound insulation unit 11 to the installation position. Repeat this process until several sound insulation units 11 are spliced ​​and installed on the bottom fixing plate 1. It is easy to understand that after splicing, the position... The side walls of the sound insulation units 11 on both sides should be flush with the end face of the bottom fixing plate 1, although a slight error is acceptable. Then, the limiting rod 4 is inserted from one end and exited from the other end. By rotating, the end of the locking sleeve 5 is pressed against the end of the bottom fixing plate 1, meaning that the limiting rod 4 can no longer slide, thus restricting the sliding and vertical movement of the internal sound insulation units 11. Since the limiting rod 4 is located in the second arc-shaped groove 13, the slider 12 cannot be pulled out upwards, thereby achieving quick assembly and locking of the sound insulation units 11 onto the bottom fixing plate 1. At the same time, the slider 12 and the groove enable quick alignment between multiple sound insulation units 11.

[0027] In one feasible embodiment, a vertical plate 6 is installed on one side of the bottom fixing plate 1, with one end of the vertical plate 6 fixed to the bottom fixing plate 1. At least two vertically arranged sliding rods 8 are provided on the vertical plate 6, with one end of each sliding rod 8 fixed to the vertical plate 6. Several sound insulation units 11 are each provided with a connecting block 20, which is slidably connected to the sliding rod 8. The connecting blocks 20 on the rectangular frame 14 are slidably connected to the sliding rods 8, which further restricts the vertical movement of the sound insulation units 11 while also providing support for the forces acting on the sound insulation units 11, thereby enhancing wind resistance. Simultaneously, it improves the stability of the sound insulation units 11 within the U-shaped groove 2 during assembly, further preventing tipping and ensuring construction safety.

[0028] Preferably, after installation, a fixing plate 7 can be provided at the other end of the bottom fixing plate 1. The fixing plate 7 is welded to the bottom fixing plate 1 and the ends of several sliding rods 8 to enhance the load-bearing capacity of the sliding rods.

[0029] In one feasible embodiment, a sealing strip 10 is provided between the contact surfaces of adjacent sound insulation units 11. The sealing strip 10 is slidably connected to the slide rod 8. The sealing strip 10 is installed by pressing the rectangular frame 14 of the adjacent sound insulation units 11 into tight contact, thereby sealing the gaps between the adjacent sound insulation units 11 and further improving the sound insulation effect.

[0030] In one feasible embodiment, a compression sleeve 9 is provided on the outer side of the connecting block 20 at the contact surface of adjacent sound insulation units 11. The compression sleeve 9 is threadedly connected to the slide rod 8. The compression sleeve 9 can limit the position of the sound insulation unit 11 on the slide rod by being threadedly connected to the slide rod 8, and at the same time increase the contact pressure between the two, thereby improving the compression effect on the sealing strip 10 and thus improving the sealing effect.

[0031] In one feasible embodiment, end blocks 21 are provided on both ends of the bottom fixing plate 1. The end blocks 21 are fixed to the bottom fixing plate 1, and the locking sleeve 5 is located inside the end blocks 21. The end blocks 21 are provided to prevent the locking sleeve 5 from being exposed and causing safety hazards. At the same time, the subsequent splicing of the bottom fixing plate 1 provides a contact plane.

[0032] In one feasible embodiment, the sound insulation unit 11 includes a rectangular frame 14, with a panel 15 and a back panel 19 respectively provided at both ends of the rectangular frame 14. The panel 15 and the back panel 19 are both fixed to the rectangular frame 14. A sound-absorbing cotton layer 18 is filled between the panel 15 and the back panel 19. The panel 15 is provided with a plurality of sound-absorbing holes 17, which are provided through the panel 15. The slider 12 is fixedly provided on the rectangular frame 14.

[0033] When noise comes into contact with panel 15, it enters through sound-absorbing holes 17 and is then absorbed by sound-absorbing cotton layer 18. Compared to the traditional method of reflecting noise using a smooth panel 15, this technical solution achieves better sound insulation. It's easy to understand that the sound-absorbing cotton layer is made of one of the following materials: fiberglass, rock wool, slag wool, or polyurethane foam; details will not be elaborated here. Panel 15 and back panel 19 can be fixed by welding or anchoring; these are existing technologies, and will not be discussed further here. It's also easy to understand that a canopy can be installed on the rectangular frame 14 to provide rain protection.

[0034] In one feasible embodiment, the panel 15 is provided with a plurality of concave spherical grooves 16, and a plurality of sound-absorbing holes 17 are disposed within the concave spherical grooves 16. The concave spherical surface is used to reflect the sound waves in a divergent manner (the spherical surface can reflect the incident sound waves in multiple directions. This diffuse reflection can reduce the intensity of the sound waves in a single direction, thereby reducing the sound energy in the original sound wave propagation direction). At the same time, the sound waves collide continuously during the reflection process, thereby losing energy and enhancing the overall sound absorption effect of the sound insulation panel, achieving the purpose of efficient sound insulation, reducing the amount of raw materials used, and saving costs.

[0035] Specifically, the concave spherical groove 16 increases the contact area between sound waves and the sound-absorbing material, thereby improving sound absorption efficiency. After entering the spherical groove, the sound waves will be reflected multiple times within the groove, increasing the chances of contact with the sound-absorbing material and thus more effectively absorbing sound energy. At the same time, the concave spherical groove 16 helps to diffuse the incident sound waves to a larger area, which can reduce the concentration of sound waves and lower the sound pressure level in a specific direction. Through the concave design, the standing wave phenomenon of sound waves on the panel 15 can be reduced. Standing waves refer to the stable vibration mode formed by sound waves at a specific frequency in space, which may lead to the concentration of sound energy. The concave spherical groove 16 helps to break this mode.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A high-efficiency sound-absorbing barrier unit, characterized in that: The device includes a bottom fixing plate with a U-shaped groove in the middle. Symmetrical first arc-shaped slots are provided on opposite sides of the U-shaped groove. Several sound insulation units are spliced ​​onto the bottom fixing plate. A slider is provided at the lower end of each sound insulation unit and is slidably connected within the U-shaped groove. Symmetrical second arc-shaped slots are provided on both sides of the slider. A limiting rod is provided within the cavity formed by the opposing first and second arc-shaped slots. The inner surfaces of the first and second arc-shaped slots are in sliding contact with the outer surface of the limiting rod. Both ends of the limiting rod extend to the outer sides of both ends of the bottom fixing plate, and locking sleeves are provided at both ends of the limiting rod. The locking sleeves are threadedly connected to the ends of the limiting rods, and the end faces of the locking sleeves are in close contact with the sides of the sound insulation units.

2. The high-efficiency sound-absorbing barrier unit according to claim 1, characterized in that: A vertical plate is installed on one side of the bottom fixing plate. One end of the vertical plate is fixed to the bottom fixing plate. At least two vertically arranged sliding rods are provided on the vertical plate. One end of each sliding rod is fixed to the vertical plate. Each of the sound insulation units is provided with a connecting block, which is slidably connected to the sliding rod.

3. The high-efficiency sound-absorbing barrier unit according to claim 2, characterized in that: A sealing strip is provided between the contact surfaces of adjacent sound insulation units, and the sealing strip is slidably connected to the slide rod.

4. The high-efficiency sound-absorbing barrier unit according to claim 2, characterized in that: Each of the connecting blocks at the contact surfaces of adjacent sound insulation units is provided with a compression sleeve, which is threaded onto the slide rod.

5. The high-efficiency sound-absorbing barrier unit according to claim 1, characterized in that: Both ends of the bottom fixing plate are provided with end blocks, the end blocks are fixed to the bottom fixing plate, and the locking sleeve is located inside the end blocks.

6. The high-efficiency sound-absorbing sound barrier unit according to claim 1, characterized in that: The sound insulation unit includes a rectangular frame, with a front panel and a back panel at each end of the rectangular frame. The front panel and the back panel are fixed to the rectangular frame. A sound-absorbing cotton layer is filled between the front panel and the back panel. The front panel has several sound-absorbing holes that penetrate the front panel. The slider is fixed to the rectangular frame.

7. The high-efficiency sound-absorbing barrier unit according to claim 6, characterized in that: The panel is provided with a plurality of concave spherical grooves, and a plurality of sound-absorbing holes are disposed in the concave spherical grooves.

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