Novel impact-resistant crash-resistant and anti-disengagement sound barrier

Abstract

The application provides a novel impact-resistant anti-collision anti-falling sound barrier, compared with the existing sound barrier structure, which sets a rubber strip between the limiting structure and the blocking structure, can not only prevent rigid contact between the screen body and the stand column, but also can enhance the connection strength between the limiting structure and the blocking structure, has the best anti-collision effect, the screen body is set to be a telescopic structure, can not only avoid installation errors, improve the size adaptability of the screen body, improve the installation efficiency, but also can be broken at the telescopic part when suffering from impact, avoid the screen body from falling off the stand column and falling on the road to cause secondary injury, has great application value.

Description

Technical Field

[0001] This invention relates to the field of traffic noise reduction, and in particular to a novel impact-resistant, collision-resistant, and detachment-resistant sound barrier. Background Technology

[0002] Sound barriers, also known as noise walls, are structures placed between a sound source and a receiver to significantly attenuate sound wave propagation, thereby reducing noise pollution in a defined area. They are primarily used for noise reduction on highways, expressways, elevated roads, and other noise sources. Sound barriers are categorized into purely sound-insulating reflective barriers and composite barriers that combine sound absorption and insulation; the latter is considered a more effective method. Highways and expressways are where all types of sound barriers are most commonly used.

[0003] Sound barriers can generally be classified into vertical sound barriers and fully enclosed sound barriers according to their structural form. Vertical sound barriers generally consist of steel profiles and sound barrier panels installed between adjacent steel profiles. The sound barrier panels are usually inserted between adjacent steel profiles. In this structure, the sound barrier panels are prone to detaching from the steel profiles when subjected to external forces or thermal expansion and contraction. Moreover, on-site installation errors can also cause one end of the panel to detach from the steel profiles or have only a small contact area with the steel profiles. Once subjected to force, the panel is prone to detachment. Therefore, providing a sound barrier with better performance and positioning and anti-collision functions has become a technical problem that needs to be solved in this industry. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a novel impact-resistant, collision-resistant, and detachment-resistant sound barrier.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A novel impact-resistant, collision-proof, and anti-detachment sound barrier includes columns arranged at certain intervals and a screen body inserted between adjacent columns. Each column includes a web and wing plates fixedly connected to the web. There are two or more wing plates. The screen body includes a shell and a sound-absorbing component disposed within the shell. Both ends of the shell are respectively clamped between the wing plates. At least one end of the shell is provided with a limiting structure, which is clamped between the wing plates. The wing plate clamping the limiting structure is also provided with a blocking structure that cooperates with the limiting structure. A damping strip is provided between the limiting structure and the blocking structure, and a one-way obstruction structure is provided on the damping strip.

[0006] Preferably, the outer shell is provided with limiting structures at both ends.

[0007] Preferably, the outer shell includes a first half-shell and a second half-shell. The first half-shell has an outwardly turned flange, and the second half-shell has an inwardly turned flange. The first half-shell is inserted into the second half-shell, and the outwardly turned flange and the inwardly turned flange are interlocked.

[0008] Preferably, the outer shell includes a first half shell, a second half shell, and a sleeve shell fitted over the first half shell and the second half shell. Both the first half shell and the second half shell are provided with outward flanges, and the sleeve shell is provided with openings. In the assembled state, the outward flanges on the first half shell and the second half shell are inserted into the openings.

[0009] Preferably, the sound-absorbing component includes a sound-absorbing material layer and a sound-insulating layer, the middle part of the sound-insulating layer is provided with at least one hole or vertical groove, and the two ends of the sound-insulating layer are fixedly connected to the corresponding limiting structure.

[0010] Preferably, the hole is at least one vertical elongated hole or several vertically arranged circular holes, and the two ends of the sound insulation layer are provided with horizontal strip holes. A steel wire rope passes through the strip holes and is fixed to the limiting structure.

[0011] Preferably, the unidirectional obstruction structure is a wedge-shaped structure, a serrated structure, a hollow structure, or a fishbone structure disposed at one end of the adhesive strip.

[0012] Preferably, the blocking structure is a folded edge disposed on the edge of the wing plate body, the folded edge facing the web plate side, and the limiting structure is located inside the folded edge.

[0013] Preferably, the housing includes a front panel and a back panel that interlock, or the housing is an integrally formed structure including a front panel or a back panel, and the limiting structure is formed by bending the ends of the front panel and / or the back panel.

[0014] Preferably, it further includes a reinforcing structure, which is an aluminum profile, a support frame, or a cement block adapted to the shape of the limiting structure. The aluminum profile, support frame, or cement block is disposed at the end of the outer shell and placed inside the limiting structure.

[0015] The beneficial effects of this invention are as follows: The novel impact-resistant, anti-collision, and anti-detachment sound barrier provided by this invention, compared with the existing structure of the anti-collision sound barrier, not only prevents rigid contact between the screen body and the column by setting a rubber strip between the limiting structure and the blocking structure, but also enhances the connection strength between the limiting structure and the blocking structure, thus achieving the best anti-collision effect. The screen body is set as a telescopic structure, which not only avoids installation errors, improves the size adaptability of the screen body, and improves installation efficiency, but also allows it to break from the telescopic part when it is impacted, preventing the two ends of the screen body from falling off the column and causing secondary damage to the road surface. It has great application value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall and disassembled structure of the first type of screen. Figure 3 This is a schematic diagram of the overall and disassembled structure of the second type of screen. Figure 4 This is a schematic diagram of the cross-sectional structure at the end of the screen. Figure 5 Here are structural diagrams of various adhesive strips; Figure 6 This is a schematic diagram of the sound insulation layer structure. Detailed Implementation

[0017] The embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0018] like Figures 1-6As shown, this invention provides a novel impact-resistant, collision-resistant, and anti-detachment sound barrier, comprising columns 2 arranged at certain intervals and a screen body 1 inserted between adjacent columns. The distance between the columns 2 is generally selected to be between 1m and 3m, and this distance can be flexibly adjusted according to the actual needs of the project. Each column includes a web 21 and wing plates 22 fixedly connected to the web 21. The columns used in general projects are H-beams or deformed H-beams. H-beams have two wing plates, while deformed H-beams have two or more wing plates, arranged parallel to each other. The screen body includes an outer shell and sound-absorbing components disposed within the outer shell. The outer shell includes a panel 11 with sound-permeable holes and a back panel 12. The sound-absorbing components include a sound-absorbing material layer and a sound-insulating layer 8. The sound-absorbing material layer is generally selected from glass wool, rock wool, or melamine, etc., and the sound-insulating layer 8 is generally selected from dense materials such as fiber cement board or plastic board. The material plate and the outer shell are respectively clamped between the wing plates of the columns located at both ends. A limiting structure 9 can be set at one end of the outer shell, or both ends of the outer shell can be set simultaneously. The corresponding wing plates of the limiting structure 9 clamping the outer shell are provided with blocking structures that cooperate with the limiting structure. If only one end of the screen is fixed by the limiting structure and the blocking structure, this type of sound barrier screen has a free end. When impacted, one end of the screen detaches from the column, mitigating some of the impact potential energy, while the other end remains fixed in the column and will not fall onto the road surface. Specifically, the blocking structure is a folded edge 23 set on the edge of the wing plate body. The wing plate body and the folded edge are integrally formed, with the folded edge 23 facing the web side. The limiting structure 9 is located inside the folded edge 23, and its shape cooperates with the blocking structure 23. Due to the blocking effect of the folded edge, the limiting structure 9 is confined within a certain space and cannot arbitrarily change its relative position with the column. As a specific option, for a structural H-beam in the column, which includes two flanges, each flange has four edges. A flange can be provided on one edge of one flange, or flanges can be provided on both edges of the same flange simultaneously. Therefore, the number of flanges can be one, two, three, or four. The limiting structures at both ends of the screen body match the flanges. For column ends without flanges on the flanges, limiting structures can be provided at the screen body ends, or not. For columns with other structural shapes, the number of flanges is selected similarly. However, as the optimal structural choice, to improve the reliability and aesthetics of the structure, flanges are generally provided on each edge of the flange.

[0019] To avoid rigid contact between the limiting structure and the blocking structure, enhance fatigue resistance, and extend the overall service life of the sound barrier, a damping strip 7 is provided between the limiting structure and the blocking structure. The strip is shaped to fit the contact surface. Furthermore, a one-way obstruction structure 71 is also provided on the damping strip, specifically, as shown below. Figure 5As shown, the ends of the rubber strips are equipped with wedge-shaped structures, serrated structures, hollow structures, fishbone structures, etc. When the sound barrier screen is subjected to impact and tension, the presence of the rubber strips reduces the rigid contact and stress between the two, and the one-way obstruction structure reduces the force between the screen and the column. Its occupancy and buffering effect further prevents the limiting structure from coming out of the blocking structure.

[0020] To improve the adaptability of the sound barrier installation and avoid installation errors on-site, the outer shell of the sound barrier is designed as a retractable structure, as the first structural option. Figure 2 As shown, the outer shell includes a first shell 3 and a second shell 4. The first shell 3 has an outwardly turned flange 31, and the second shell 4 has an inwardly turned flange 41 at a corresponding position. In the installed state, the first shell 3 is inserted into the second shell 4, and the outwardly turned flange 31 and the inwardly turned flange 41 can interlock. When the screen retracts inward, the rigidity of the internal sound-absorbing component, i.e., its sound insulation layer 8, limits the retraction, preventing excessive shrinkage. When the screen stretches to both sides, the outwardly turned flange 31 and the inwardly turned flange 41 interlock, preventing excessive stretching that could cause the first shell 3 and the second shell 4 to detach. As a second structural option, such as... Figure 3 As shown, the outer shell includes a first half shell 3, a second half shell 4, and a cover shell 5 that is fitted over both the first and second half shells. Both the first half shell 3 and the second half shell 4 are provided with outward flanges 31. The cover shell 5 is provided with several openings 51. In the assembled state, the outward flanges 31 on the first half shell 3 and the second half shell 4 can engage with the corresponding openings 51. Similarly, when the screen shrinks inward, the internal sound-absorbing components limit the shrinkage size to prevent it from being too large. When the screen stretches to both sides, the outward flanges 31 move to both sides within the range of the openings 51. The openings 51 can provide space for movement and also limit the movement.

[0021] The two structures mentioned above can not only avoid the error in the distance between the columns on the construction site, but also, when the sound barrier is subjected to a strong impact, because the mechanical strength of the half-shell one and half-shell two that make up the outer shell is far less than the strength of the half-shell one and half-shell two bodies, the movable connection will break first when impacted, releasing some of the impact potential energy and preventing the two ends of the outer shell from falling off the columns.

[0022] To prevent the sound barrier from breaking upon impact, such as... Figure 6As shown, the sound-absorbing components inside, especially the sound insulation layer, also break and fall. At least one vertical strip hole 81, or several small holes arranged vertically, or a vertical groove is opened in the middle part of the sound insulation layer 8 to thin the middle part of the sound insulation layer, forming a weak band in mechanical strength. The two ends of the sound insulation layer are opened, and bolts or steel wire ropes are passed through the openings and fixed to the limiting structure 9. The openings can be selected as horizontal strip holes. When the screen is impacted, the outer shell of the screen breaks from the middle, and the sound insulation layer inside also breaks from the weak band, releasing more impact potential energy and ensuring that its two ends do not detach from the limiting structure, thereby preventing it from falling out of the column.

[0023] As another structural option, the outer shell includes an interlocking panel 11 and a back plate 12, or the outer shell is an integrally molded structure including a panel or a back plate, with the limiting structure formed by bending the ends of the panel and / or the back plate. Specifically, the limiting structure 9 is formed by overlapping the bent portions formed at the ends of the panel and the back plate. The thickness of the overlapping limiting structure 9 is greater than the thickness of other parts of the outer shell. Depending on the different requirements of the site, the thickness of the structure formed by the limiting structure can also be less than or equal to the thickness of the main body of the outer shell structure. As a second structural option, the outer shell includes a panel 11 and a back plate 12. The first option includes a panel, a back panel, and side panels connecting the front and back panels. The front, back, and side panels are integrally formed. The limiting structure is formed by bending the ends of the front and / or back panels. The second option includes a shell comprising interlocking front and back panels. The limiting structure is fixedly connected to the left and right ends of the shell (not shown in the figure). The connection method can be selected as interlocking, snapping, or other fixed connection methods with the ends of the front and back panels. The third option includes a fourth option, where a groove 9 for accommodating folded edges is provided on the shell. The thickness of the structure formed by the limiting structure is the same as the thickness of the main body of the shell structure.

[0024] When the screen is impacted, the limiting structure at the end of the screen is prone to deformation, causing it to detach from the support column. To prevent the screen from falling to the ground and causing secondary injury to pedestrians, a fixed overlapping structure is used between the bent portion formed at the end of the panel and the bent portion formed at the end of the back plate. Specifically, as one structural option, the bent portion formed at the end of the panel and the bent portion formed at the end of the back plate can be fixed by welding, screwing, riveting, or interlocking. As another structural option, the bent portion of the panel has at least one opening, and the bent portion of the back plate has a folded edge. In use, the folded edge passes through the opening and engages with the bent portion of the panel. Similarly, the bent portion of the back plate has at least one opening, and the bent portion of the panel has a folded edge. In the overlapping state, the folded edge passes through the opening and engages with the bent portion of the back plate.

[0025] To further prevent the limiting structure 9 from detaching from the blocking structure, a reinforcing structure is also provided inside the limiting structure 9. Specifically, the reinforcing structure is an aluminum profile 10 that matches the shape of the limiting structure. The aluminum profile is located at the end of the outer shell and placed inside the limiting structure. To ensure strength and prevent displacement of the aluminum profile, the aluminum profile 10 is fitted to the inner wall of the limiting structure. Reinforcing ribs are provided inside the aluminum profile. Due to the rigidity of the aluminum profile, deformation of the limiting structure caused by external forces is prevented to the greatest extent possible, preventing secondary drops of the screen from causing damage. Generally, a sound absorber is provided inside the outer shell of the screen. To facilitate the fixing of the internal sound absorber, a groove for fixing the sound absorber is provided on the side of the aluminum profile facing the other end of the outer shell. Preferably, when the sound absorber includes a sound insulation layer and a sound absorbing material, the groove includes a groove one for fixing the sound insulation layer and a groove two for fixing the sound absorbing material. As another structural option, the reinforcing structure is integrated with the limiting structure. A support frame with a shape adapted to the shell is set at the end of the shell and placed inside the limiting structure. Its shape is adapted to the shape of the limiting structure, or other structural forms can be selected, such as trapezoidal, arc, V-shaped, etc., and can be placed inside the limiting structure. Alternatively, a steel plate can be directly fixed inside the limiting structure to achieve the purpose of strengthening the structure and preventing deformation of the limiting structure. Or, the strengthening structure can be a cement block filled inside the limiting structure. All the above structures that can support and strengthen the limiting structure are within the structural protection scope of this invention. Experiments have shown that the limiting structure with added strengthening structure has a more than 10 times better anti-detachment effect than the limiting structure without added strengthening structure. Thus, even if the shell of the screen is torn in half by external force, the limiting structure is still confined within the blocking structure, and the torn shell is still connected to the limiting structure, thereby preventing the shell from falling.

[0026] As a choice of blocking structure, to achieve the blocking effect, the folded edge faces the web side, and the angle between the folded edge and the wing plate body is an acute angle, a right angle, or an obtuse angle; as other structural options, the blocking structure is a protruding structure provided on the edge of the wing plate; otherwise, the blocking structure is an arc-shaped structure provided on the edge of the wing plate that bends towards the web side; the wing plate can be selected as an arc-shaped structure, with the concave surface of the arc-shaped structure facing the web side; the wing plate is a V-shaped structure composed of two plates at an angle to each other, with the concave surface of the V-shaped structure facing the web side; further structural extensions, the thickness of the blocking structure welded to the end of the wing plate body or the edge of the wing plate is greater than the thickness of other parts of the wing plate.

[0027] The embodiments described above are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel impact-resistant, collision-proof, and anti-detachment sound barrier, comprising columns arranged at certain intervals and a screen body inserted between adjacent columns, each column comprising a web and wing plates fixedly connected to the web, wherein there are two or more wing plates, and the screen body comprising a shell and sound-absorbing components disposed within the shell, wherein both ends of the shell are respectively clamped between the wing plates, characterized in that, At least one end of the outer shell is provided with a limiting structure, the limiting structure is sandwiched between the wing plates, and the wing plate on which the limiting structure is sandwiched is also provided with a blocking structure that cooperates with the limiting structure. A damping rubber strip is provided between the limiting structure and the blocking structure, and a one-way obstruction structure is provided on the damping rubber strip.

2. The novel impact-resistant, collision-resistant, and detachment-resistant sound barrier according to claim 1, characterized in that, Limiting structures are provided at both ends of the outer shell.

3. The novel impact-resistant, collision-resistant, and anti-detachment sound barrier according to claim 1 or 2, characterized in that, The outer shell includes a first half-shell and a second half-shell. The first half-shell has an outward-facing flange, and the second half-shell has an inward-facing flange. The first half-shell is inserted into the second half-shell, and the outward-facing flange and the inward-facing flange are interlocked.

4. The novel impact-resistant, collision-resistant, and anti-detachment sound barrier according to claim 1 or 2, characterized in that, The outer shell includes a first half shell, a second half shell, and a sleeve shell fitted over the first half shell and the second half shell. Both the first half shell and the second half shell are provided with outward flanges, and the sleeve shell is provided with openings. In the assembled state, the outward flanges on the first half shell and the second half shell are inserted into the openings.

5. The novel impact-resistant, collision-resistant, and anti-detachment sound barrier according to claim 1 or 2, characterized in that, The sound-absorbing component includes a sound-absorbing material layer and a sound-insulating layer. The middle part of the sound-insulating layer is provided with at least one hole or vertical groove, and the two ends of the sound-insulating layer are fixedly connected to the corresponding limiting structure.

6. The novel impact-resistant, collision-resistant, and detachment-resistant sound barrier according to claim 5, characterized in that, The hole is at least one vertical elongated hole or several vertically arranged circular holes. The two ends of the sound insulation layer are provided with horizontal strip holes. A steel wire rope passes through the strip holes and is fixed to the limiting structure.

7. The novel impact-resistant, collision-resistant, and detachment-resistant sound barrier according to claim 1, characterized in that, The unidirectional obstruction structure is a wedge-shaped structure, a serrated structure, a hollow structure, or a fishbone structure located at one end of the adhesive strip.

8. The novel impact-resistant, collision-resistant, and detachment-resistant sound barrier according to claim 1, characterized in that, The blocking structure is a folded edge disposed on the edge of the wing plate body, the folded edge facing the web plate side, and the limiting structure is located inside the folded edge.

9. The novel impact-resistant, collision-resistant, and detachment-resistant sound barrier according to claim 1, characterized in that, The housing includes a front panel and a back panel that interlock, or the housing is an integrally formed structure including a front panel or a back panel, and the limiting structure is formed by bending the ends of the front panel and / or the back panel.

10. The novel impact-resistant, collision-resistant, and detachment-resistant sound barrier according to claim 1, characterized in that, It also includes a reinforcing structure, which is an aluminum profile, a support frame, or a cement block that is adapted to the shape of the limiting structure. The aluminum profile, support frame, or cement block is disposed at the end of the outer shell and placed inside the limiting structure.

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