CN217128056U - Road and bridge noise reduction device - Google Patents

Abstract

The utility model relates to a road and bridge noise reduction device, which effectively solves the problem of poor noise reduction effect of roadside sound insulation screens; the technical scheme includes that the sound insulation board comprises a vertical board type sound insulation board, horizontal ear plates are fixed on two sides of the bottom of the sound insulation board, foundation bolts penetrate through the ear plates, the sound insulation board can be erected on two sides of a road through the foundation bolts, a plurality of layers of scale plates are fixed on the middle upper portion of the side wall, facing one side of the road, of the sound insulation board, the plurality of layers of scale plates are arranged at equal intervals from top to bottom, each layer of scale plate is arranged along the trend of the sound insulation board, the outer sides of the scale plates incline downwards, so that a fixed included angle is formed between the scale plates and the sound insulation board, and porous sound absorption cotton is attached to the lower side of each layer of scale plate and the surface of the sound insulation board between each two layers of scale plates; the utility model discloses have good sound insulation performance, and porous sound cotton concealed installation of inhaling, difficult ageing, difficult humidity breeds the bacterium, produces the peculiar smell.

Description

Road and bridge noise reduction device

Technical Field

The utility model relates to a road facilities field specifically is a device of making an uproar falls in road bridge.

Background

When the viaduct passes through a residential building and is close to the roadside residential building, the noise insulation screens are generally additionally arranged on two sides of a road to weaken the influence of noise on residents, the existing noise insulation screens are generally plate-shaped made of sound insulation materials, although the existing noise insulation screens can block the noise from being transmitted to the side, the noise reflected by the noise insulation screens can cross the top of the opposite side noise insulation screens to influence the opposite side residential building, and therefore the noise insulation screens on the two sides reflect each other, and the noise reduction effect is greatly reduced; some sound-proof screens can install porous sound cotton additional and weaken the noise, but porous sound cotton of inhaling is ageing easily after the weather that blows, and breed the bacterium after the rainwater drenches easily, produces the peculiar smell, consequently uses not generally.

Disclosure of Invention

To the poor problem of effect of making an uproar falls in roadside sound insulation screen, the utility model provides a device of making an uproar falls in road bridge.

The technical scheme of its solution is, a device of making an uproar falls in road bridge, including the sound insulation screen of vertical plate formula, the bottom both sides of sound insulation screen are fixed with the horizontally otic placode, wear rag bolt on the otic placode, can erect the sound insulation screen in the both sides of road through rag bolt, the sound insulation screen is fixed with the multilayer apron towards the well upper portion of the lateral wall of road one side, the equidistance sets up about the multilayer apron, every layer of apron all sets up along the sound insulation screen trend, the outside slope of apron downwards, thereby make apron and sound insulation screen become fixed contained angle, all paste on the downside of every layer of apron and the sound insulation screen face between every two-layer of apron and be equipped with porous sound absorption cotton.

The sound insulation screen is of a multi-section type, and the sections are detachably connected.

One end of each section of sound insulation screen is fixed with a vertical cylinder, and the other end is fixed with a vertical arc-shaped plate with a semicircular section.

And one side of the sound insulation screen, which is back to the road, is fixedly provided with a vertical reinforcing rib, and the reinforcing rib is an angle steel.

The upper end of the sound insulation screen is bent inwards.

The utility model discloses have good sound insulation performance, and porous sound cotton concealed installation of inhaling, difficult ageing, difficult humidity breeds the bacterium, produces the peculiar smell.

Drawings

Fig. 1 is a schematic view showing reflection of sound waves of a conventional soundproof screen.

Fig. 2 is a front view of the present invention.

Fig. 3 is an enlarged view of the position a in fig. 2.

Fig. 4 is an enlarged view of the position B in fig. 2.

Figure 5 is a top view of the attachment location of two lengths of sound barrier.

Detailed Description

With reference to fig. 1 to 5, the utility model discloses a vertical plate type sound insulation screen 1, horizontal otic placode 2 is fixed on the bottom both sides of sound insulation screen 1, anchor bolt 3 has been worn on otic placode 2, can erect sound insulation screen 1 in the both sides of road through anchor bolt 3, sound insulation screen 1 is fixed with multilayer apron 4 towards the well upper portion of the lateral wall of road one side, multilayer apron 4 is from top to bottom equidistance setting, each layer of apron 4 all sets up along sound insulation screen 1 trend, the outside of apron 4 inclines downwards, thereby make apron 4 and sound insulation screen 1 become fixed contained angle, porous sound-absorbing cotton 5 has all been posted on the downside of each layer of apron 4 and sound insulation screen 1 face between each two layers of apron 4; when the vehicle noise is transmitted to the sound insulation screen 1, the vehicle noise enters between the multiple layers of the scale plates 4, is reflected for multiple times between the scale plates 4 and the sound insulation screen 1, and is absorbed by the porous sound absorption cotton 5 in the reflection process, so that the outward transmission of the noise is greatly weakened.

The sound insulation screen 1 is in a multi-section type, and sections are detachably connected; during construction, the sound insulation screen 1 is fixedly installed on two sides of a road section by section and is spliced into a whole.

One end of each section of the sound insulation screen 1 is fixed with a vertical cylinder 6, and the other end is fixed with a vertical arc-shaped plate 7 with a semicircular section; when two sections sound-proof screens 1 are connected, the cylinder 6 on one section of sound-proof screen 1 is embedded into the arc-shaped plate 7 on the other section of sound-proof screen 1 to form an articulated shaft, and the sound-proof screen 1 can rotate around the axis of the cylinder 6, so that the installation operation of a non-linear road is adapted.

One side of the sound insulation screen 1, which is back to the road, is fixedly provided with a vertical reinforcing rib 8, and the reinforcing rib 8 is an angle steel, so that the wind resistance of the sound insulation screen 1 is improved.

The upper end of the sound insulation screen 1 is bent inwards, so that the sound insulation range is expanded.

Installation the utility model discloses the time, with the fixed first section sound screen 1 of rag bolt 3, then with the arc 7 on the second section sound screen 1 and the 6 locks of cylinder on the first section sound screen 1 to rotate second section sound screen 1 and make it move towards unanimously with the road, then with the fixed second section sound screen 1 of rag bolt 3, so as to analogize, accomplish the installation of specific highway section sound screen 1.

When a road provided with the sound insulation screen 1 is on traffic, vehicle noise is scattered to the sound insulation screen 1 towards two sides, noise at a low position can be emitted to one side of the apron 4 which is not attached with the porous sound absorption cotton 5, then the noise is reflected to the apron 4 at the upper layer and is reflected again, as shown in figure 3, the noise is reflected for many times between the two layers of the apron 4 and is absorbed by the porous sound absorption cotton 5 and cannot be reflected towards the opposite side of the road; the noise at high place has two reflection paths, the first is the same as that at low place, the second is that the sound wave is directly emitted to the sound-proof screen 1 from the side gap between the two layers of the scale plates 4 and then reflected, as shown in fig. 4, in this case, the sound wave may be emitted from the space between the scale plates 4 after being reflected for many times, but the noise is greatly weakened after being absorbed for many times by the porous sound-absorbing cotton 5, and the emitting direction is obliquely downwards emitted to the road surface, so the residential areas at two sides of the road are not influenced.

The utility model has the advantages that the sound waves emitted to the sound insulation screen 1 are reflected for many times by the two layers of the scale plates 4 and absorbed by the porous soundproof cotton without being reflected to opposite sides by arranging the plurality of layers of the scale plates 4, so that the sound insulation performance is greatly improved; additionally, the utility model discloses a porous soundproof cotton's mounted position can not be penetrated directly by sunshine and shine the insolate, can not drenched by the rain, and consequently porous soundproof cotton is difficult for ageing, is difficult for the humidity to breed the bacterium, produces the peculiar smell.

Claims (5)

1. The utility model provides a device of making an uproar falls in road and bridge, a serial communication port, including vertical plate formula sound insulation screen (1), the bottom both sides of sound insulation screen (1) are fixed with horizontally otic placode (2), wear rag bolt (3) on otic placode (2), can erect sound insulation screen (1) in the both sides of road through rag bolt (3), sound insulation screen (1) is fixed with multilayer apron (4) towards the well upper portion of the lateral wall of road one side, the equidistance sets up about multilayer apron (4), every layer apron (4) all moves towards the setting along sound insulation screen (1), the outside slope of apron (4) is below, thereby make apron (4) and sound insulation screen (1) become fixed contained angle, all paste on the downside of every layer apron (4) and sound insulation screen (1) face between every two-layer apron (4) and be equipped with porous sound absorption cotton (5).

2. A road and bridge noise reducer according to claim 1, wherein said acoustic screen (1) is multi-sectional, with sections detachably connected to each other.

3. A road and bridge noise reducer according to claim 1, wherein each section of sound barrier (1) has a vertical cylinder (6) fixed to one end and a vertical arc (7) with a semicircular cross-section fixed to the other end.

4. A road and bridge noise reduction device according to claim 1, wherein a vertical reinforcing rib (8) is fixed on the side of the sound insulation screen (1) opposite to the road, and the reinforcing rib (8) is an angle steel.

5. A road and bridge noise reducer according to claim 1, wherein the upper end of said sound barrier (1) is bent inwardly.

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