CN219470707U - Aluminum noise reduction barrier for high-speed rail - Google Patents

Abstract

The aluminum noise reduction barrier for the high-speed rail comprises a plurality of independent noise reduction barrier units which are spliced together, wherein each independent noise reduction barrier unit comprises an upper screen area, a middle screen area and a lower screen area, the upper screen area is in an inward contracted arc shape from bottom to top, and the upper screen area comprises an outer upper aluminum guard plate, a foam cotton layer and an inner upper aluminum guard plate; the middle screen area consists of an inner sound-insulation acrylic plate and an outer sound-insulation acrylic plate, a closed space is formed between the inner sound-insulation acrylic plate and the outer sound-insulation acrylic plate, and a vacuum layer is formed after the closed space is vacuumized; the lower screen area comprises a base plate layer, an outside lower aluminum guard plate positioned at the upper end of the base plate layer, a gypsum frame and an inside lower aluminum guard plate, wherein the gypsum frame is provided with a plurality of accommodating grooves, and silencing cotton is embedded in the accommodating grooves. According to the utility model, the regions are divided according to the characteristics of different heights, and each region adopts different structural schemes so as to have better comprehensive noise reduction performance.

Description

Aluminum noise reduction barrier for high-speed rail

Technical Field

The utility model relates to the technical field of road and bridge construction, in particular to an aluminum noise reduction barrier for high-speed rails.

Background

Municipal engineering refers to municipal infrastructure construction engineering, in China, municipal infrastructure refers to various buildings, structures, equipment and the like which are arranged in urban areas and town planning construction ranges and provide paid or gratuitous public products and services for residents based on government responsibility and obligations, and various public infrastructure construction matched with urban living belongs to the municipal engineering category, such as common urban roads, bridges, subways, underground pipelines, tunnels, river channels, rail transit, sewage treatment, garbage treatment and other engineering, and also such as various pipelines closely related to living.

In order to reduce the influence of noise on surrounding pedestrians and residents during the construction of municipal road and bridge, a noise-reducing barrier is generally arranged around the construction. The sound barrier is mainly used for sound insulation and noise reduction of highways, expressways, overhead composite roads and other noise sources. The method is divided into a reflection type sound barrier for pure sound insulation and a composite type sound barrier for sound absorption and sound insulation, wherein the reflection type sound barrier is a more effective sound insulation method. Refers to a wall structure provided on the side of a railway or a road in order to reduce the influence of driving noise on nearby residents. Sound-insulating walls are also known as sound barriers. A means, called a sound barrier, is interposed between the source and the recipient to provide a significant additional attenuation of the propagation of sound waves, thereby attenuating the noise effects in the area where the recipient is located. The sound insulation barrier is divided into a traffic sound insulation barrier, an equipment noise attenuation sound insulation barrier, an industrial factory boundary sound insulation barrier, a highway and an expressway, and the place where various types of sound barriers are most used.

For example, patent document CN215887984U discloses a municipal road noise barrier, which relates to the field of road and bridge construction. This town road amortization barrier includes installation base and acoustical panel, and installation base and ground fixed connection, the last fixed surface of installation base are provided with the acoustical panel. The novel noise-reducing barrier is characterized in that the novel noise-reducing barrier is formed by an outer baffle, an inner plate and a vibration-reducing noise-reducing interlayer by utilizing the principle that sound propagates in a wave and vibration mode, firstly, the propagation of the sound is cut off in a mode of directly cutting off a propagation path, secondly, part of sound waves can be eliminated by producing vibration with the same frequency as the sound waves through the inner plate connected through the vibration-reducing spring, the noise-reducing effect can be achieved, noise-reducing sponge is further arranged in the vibration-reducing noise-reducing interlayer, and the sound waves are absorbed by the noise-reducing sponge with a porous structure when propagating in the vibration-reducing noise-reducing interlayer, so that the sound waves are prevented from propagating to the other side of the device.

The high-speed railway, namely high-speed rail for short, refers to a railway system with high design standard grade and capable of being used for safe high-speed running of trains. The concept is not limited to rails, but rather to trains. However, since the speed of the high-speed rail is extremely high (more than 300 km/h), noise is excessively high, tremble occurs in a house at a short distance when the high-speed rail passes, and serious house cracks and foundation subsidence occur.

The noise hazard between the high-speed railway is huge, and the town road noise reduction barrier in the above patent can play very limited sound insulation effect, and can not satisfy the use requirement far. Therefore, there is an urgent need for a sound-deadening barrier that is more effective in the use of sound-deadening barriers that are dedicated to high-speed rail sites.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the aluminum noise reduction barrier for the high-speed rail.

The technical scheme for solving the technical problems is as follows: the aluminum noise reduction barrier for the high-speed rail comprises a plurality of independent noise reduction barrier units which are spliced together, wherein each independent noise reduction barrier unit comprises an upper screen area, a middle screen area and a lower screen area, the upper screen area is in an inward contracted arc shape from bottom to top, and the upper screen area comprises an outer upper aluminum guard plate, a foam cotton layer and an inner upper aluminum guard plate which are sequentially arranged from outside to inside;

the middle screen area consists of an inner side sound-insulation acrylic plate and an outer side sound-insulation acrylic plate, a closed space is formed between the inner side sound-insulation acrylic plate and the outer side sound-insulation acrylic plate, and a vacuum layer is formed after the closed space is vacuumized;

the lower screen area include base slab layer, and be located base slab layer upper end and outside that sets gradually from outside to interior aluminium system backplate, gypsum frame, inboard aluminium system backplate down, wherein the gypsum frame have a plurality of holding tanks, the holding tank in inlay and be equipped with amortization cotton.

With respect to the further arrangement of the technical scheme, the substrate flat plate layer comprises an aluminum shell at two sides and a mortar layer poured into the aluminum shell.

Regarding the further arrangement of the technical scheme, a plurality of cylindrical holes are formed in the bottom of the aluminum shell, and the mortar layer is poured with the ground through the cylindrical holes.

With regard to the further setting of above-mentioned technical scheme, base slab layer still include a plurality of L type fixed plate, the vertical section of L type fixed plate is laminated and is welded together with aluminium system casing, the horizontal section of L type fixed plate is laminated and is passed through the stock rigid coupling with ground.

With respect to the further arrangement of the above technical scheme, a containing area is arranged between adjacent independent noise reduction barrier units, and an air guiding device is arranged in the containing area.

Regarding the further arrangement of the technical scheme, the air guiding device comprises a control circuit board, a rotating motor, a rotating shaft driven by the rotating motor and a plurality of guiding sheets fixed on the rotating shaft, wherein the rotating motor is electrically connected with the control circuit board.

With regard to the further arrangement of the technical scheme, the motor control device further comprises a protection housing for accommodating the rotating motor, wherein the protection housing is embedded in the ground, and the control circuit board is electrically connected with an external power supply through an embedded cable.

Regarding the further setting of above-mentioned technical scheme, air guiding device still include setting up at translation motor, receive translation motor driven lead screw and the nut seat of spiro union on the lead screw, rotation motor fix on the nut seat, translation motor with control circuit board electricity connect.

With respect to the further arrangement of the technical scheme, the guide vane comprises a carbon fiber base layer and an aluminum sheet layer attached to the carbon fiber base layer.

With respect to the further arrangement of the above technical scheme, the independent noise reduction barrier units are provided with connecting pieces, and the connecting pieces on the adjacent independent noise reduction barrier units are fixed together through adjusting screws.

The utility model has the beneficial effects that: 1. the aluminum noise reduction barrier for the high-speed rail is provided, the regions are divided according to the characteristics of different heights, and each region adopts different structural schemes so as to have better comprehensive noise reduction performance; 2. the lower screen area mainly plays a good supporting role for the whole noise reduction barrier, meanwhile, a containing groove is formed in the gypsum frame to be filled with noise reduction cotton, a certain noise reduction effect is achieved, and aluminum guard plates on the inner side and the outer side of the gypsum frame can play a role in decoration and protection; 2. the middle area adopts the inner and outer acrylic plates to form a closed space (vacuum layer), so that the noise in the middle area can be almost blocked to prevent the noise from being scattered outwards; 3. the upper layer area adopts the foam cotton layer of comparatively light to make the whole quality distribution characteristic that forms light from top to bottom, and then improve holistic stability, on the other hand upper screen district adopts and is the arciform of inside shrink from bottom to top, can form the water conservancy diversion to noise and energy, makes it more concentrate to just over diverging.

Drawings

FIG. 1 is a simplified schematic illustration of the present utility model in use.

Fig. 2 is a cross-sectional view of the upper screen area of the present utility model.

Fig. 3 is a cross-sectional view of a mid-screen region of the present utility model.

Fig. 4 is a cross-sectional view of the lower screen section of the present utility model.

Fig. 5 is a cross-sectional view of a base deck layer and ground attachment structure.

Fig. 6 is a schematic structural view of the air guiding device.

Fig. 7 is a cross-sectional view of a baffle.

FIG. 8 is a simplified schematic illustration of an adjacent individual sound attenuating barrier unit connection.

In the figure: 1. a separate sound attenuation barrier unit; 2. an upper screen area; 3. a middle screen area; 4. a lower screen area; 5. an aluminum guard board is arranged on the outer side; 6. a foam cotton layer; 7. an aluminum guard board is arranged on the inner side; 8. an inner sound insulation acrylic plate; 9. an outer sound insulation acrylic plate; 10. a vacuum layer; 11. a base plate layer; 12. a lower aluminum guard plate on the outer side; 13. a gypsum frame; 14. a lower aluminum guard plate on the inner side; 15. silencing cotton; 16. an aluminum housing; 17. a mortar layer; 18. a cylindrical hole; 19. an L-shaped fixing plate; 20. a bolt; 21. a vertical section; 22. a transverse section; 23. a receiving area; 24. an air guiding device; 25. ground surface; 26. a rotating motor; 27. a rotating shaft; 28. a deflector; 29. a protective cover; 30. a translation motor; 31. a screw rod; 32. a nut seat; 33. a carbon fiber base layer; 34. an aluminum sheet layer; 35. adjusting a screw; 36. a connecting sheet; 37. spacing.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

Referring to fig. 1 to 8, an aluminum noise reduction barrier for high-speed rail comprises a plurality of independent noise reduction barrier units 1 spliced together, wherein each independent noise reduction barrier unit 1 comprises an upper screen region 2, a middle screen region 3 and a lower screen region 4, the upper screen region 2 is in an inward contracted arc shape from bottom to top, and the upper screen region 2 comprises an outer upper aluminum protection plate 5, a foam cotton layer 6 and an inner upper aluminum protection plate 7 which are sequentially arranged from outside to inside;

the middle screen area 3 consists of an inner side sound-insulation acrylic plate 8 and an outer side sound-insulation acrylic plate 9, a closed space is formed between the inner side sound-insulation acrylic plate 8 and the outer side sound-insulation acrylic plate 9, and a vacuum layer 10 is formed after the closed space is vacuumized;

the lower screen area 4 comprises a base plate layer 11, and an outer lower aluminum guard plate 12, a gypsum frame 13 and an inner lower aluminum guard plate 14 which are positioned at the upper end of the base plate layer 11 and are sequentially arranged from outside to inside, wherein the gypsum frame 13 is provided with a plurality of accommodating grooves, and silencing cotton 15 is embedded in the accommodating grooves.

The foregoing is basic content of the present utility model, the aluminum noise reduction barrier is mainly used in high-speed rail passing areas, and has a higher overall height than the municipal road noise reduction barrier in the prior art, and is divided into areas according to characteristics of different heights, wherein each area adopts different structural schemes. Specifically, the lower screen area 4 mainly plays a supporting role, so that the lower screen area 4 takes the substrate flat layer 11 and the gypsum frame 13 as main bodies, plays a good supporting role for the whole noise reduction barrier, simultaneously draws out a containing groove in the gypsum frame 13 to be filled with noise reduction cotton 15, plays a certain noise reduction role, and sets an aluminum guard board on the inner side and the outer side of the gypsum frame 13, so that the noise reduction barrier has the advantages of rich color, good rigidity, good durability and the like, and mainly can play a role in decoration and protection; the impact force applied to the middle area is reduced relative to the lower area, but the noise is increased, so that an enclosed space (vacuum layer 10) is formed by adopting the acrylic plates on the inner side and the outer side, and the vacuum layer 10 can almost block the noise of the middle area to prevent the noise from being scattered by virtue of the characteristics of a medium required for sound transmission; the upper layer region adopts the foam cotton layer 6 which is relatively light, so that the overall quality distribution characteristic of light and heavy is formed, the overall stability is improved, the foam cotton layer 6 can play a good energy absorption role, and on the other hand, the upper screen region 2 adopts an arc shape which is contracted inwards from bottom to top, and can form diversion for noise and energy, so that the noise and the energy are more intensively dispersed to the right upper side.

With reference to fig. 4, referring to a further arrangement of the base plate layer 11, the base plate layer 11 includes an aluminum shell 16 on two sides, and a mortar layer 17 poured into the aluminum shell 16, a plurality of cylindrical holes 18 are formed in the bottom of the aluminum shell 16, and the mortar layer 17 is poured with the ground 25 through the cylindrical holes 18. The use of the mortar layer 17, on the one hand, with a higher density, can increase the weight of the base slab layer 11, making its weight ratio in the whole noise barrier greater, thus improving stability and supporting performance; on the other hand, the device can be fixedly connected with the ground 25 to form an integrated effect, so that stress can be conducted to the ground 25, and the performances of earthquake resistance, wind resistance and impact resistance are greatly improved.

With respect to the structural supplementation of the base plate layer 11 itself, referring to fig. 5, it further comprises a plurality of L-shaped fixing plates 19, the vertical sections 21 of the L-shaped fixing plates 19 are attached to the aluminum housing 16 and welded together, and the lateral sections 22 of the L-shaped fixing plates 19 are attached to the ground 25 and fixedly connected by anchor rods 20. The L-shaped fixing plate 19 is adopted, so that the aluminum shell 16 has better integrity, and the aluminum shell is connected with the ground 25 in a transitional manner; and the anchor rods 20 are fixedly connected, so that the anchor rods can conveniently extend into the ground 25 to a deeper position, the bonding friction effect between the anchor bodies and the soil layer of the ground 25 can be increased, and the bearing effect is increased.

With respect to the further arrangement of the above technical solution, a receiving area 23 is provided between adjacent independent sound attenuation barrier units 1, and an air guiding device 24 is provided in the receiving area 23. Specifically, the air guiding device 24 includes a control circuit board (not shown), a rotating motor 26, a rotating shaft 27 driven by the rotating motor 26, and a plurality of guiding fins 28 fixed on the rotating shaft 27, where the rotating motor 26 is electrically connected with the control circuit board. Through the setting of air guiding device 24, can be according to the difference of the wind direction wind-force of each hour, the difference of high-speed railway travel direction, the direction of self-adjusting guide vane 28 to with wind-force (natural wind or high-speed railway through the air current that arouses) better water conservancy diversion outside, and then reduce the external impact force that causes the noise reduction barrier.

The motor belongs to the electricity-using component, and because the air guiding device 24 needs to be used outdoors, in order to form better protection for the motor, the preferred structure and the installation mode adopted in this embodiment are: referring to fig. 6, the motor vehicle further comprises a protective cover 29 for accommodating the rotating motor 26, wherein the protective cover 29 is embedded in the ground 25, and the control circuit board is electrically connected with an external power supply through an embedded cable (not shown).

Further, referring to fig. 6, the air guiding device 24 further includes a translation motor 30, a screw rod 31 driven by the translation motor 30, and a nut seat 32 screwed on the screw rod 31, the rotation motor 26 is fixed on the nut seat 32, and the translation motor 30 is electrically connected with the control circuit board. By adopting the structure, the moving function of the air guide device 24 can be enriched, namely, the guide vane 28 can realize the adjustment of the transverse position while realizing the rotation, so as to meet the use requirements of more complexity and diversification.

The specific composition structure of the guide vane 28 in the above technical solution is as follows: referring to fig. 7, the deflector 28 includes a carbon fiber base layer 33, and an aluminum sheet layer 34 attached to the carbon fiber base layer 33. The carbon fiber base layer 33 has the advantages of light weight, high strength, high temperature resistance, friction resistance, electric conduction, heat conduction, corrosion resistance and the like, and the aluminum sheet layer 34 can play a role in decoration, so that the aluminum sheet layer has more consistent appearance with the whole noise-reducing barrier.

In some embodiments of the present utility model, referring to fig. 8, the independent sound-deadening barrier units 1 are provided with connection pieces 36, and the connection pieces 36 on adjacent independent sound-deadening barrier units 1 are fixed together by adjusting screws 35. In use, a worker can adjust the spacing 37 between adjacent independent noise abatement barrier units 1 by adjusting the screw 35 to meet the requirements of different areas and different environments. For example, in the high-speed and low-speed running area, the impact force is smaller because the airflow velocity around the high-speed rail is slower, so that the interval 37 between adjacent independent noise reduction barrier units 1 can be set larger, and the use requirement can be met; if the high-speed running area is a high-speed running area, the air flow speed around the high-speed running area is high, and the impact force is high, so that the interval 37 between the adjacent independent noise reduction barrier units 1 can be set smaller, the integrity is improved, and the high impact force is resisted.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes of the above embodiment according to the technical matter of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides an aluminium system noise abatement barrier for high-speed railway, includes independent noise abatement barrier unit (1) that a plurality of is spliced together each other, every independent noise abatement barrier unit (1) all include upper shield district (2), well screen district (3) and lower screen district (4), its characterized in that: the upper screen area (2) is in an inward contracted arc shape from bottom to top, and the upper screen area (2) comprises an outer side upper aluminum guard plate (5), a foam cotton layer (6) and an inner side upper aluminum guard plate (7) which are sequentially arranged from outside to inside;

the middle screen area (3) consists of an inner side sound-insulation acrylic plate (8) and an outer side sound-insulation acrylic plate (9), a closed space is formed between the inner side sound-insulation acrylic plate (8) and the outer side sound-insulation acrylic plate (9), and a vacuum layer (10) is formed after the closed space is vacuumized;

the lower screen area (4) comprises a substrate flat plate layer (11), and an outer side lower aluminum guard plate (12), a gypsum frame (13) and an inner side lower aluminum guard plate (14) which are positioned at the upper end of the substrate flat plate layer (11) and sequentially arranged from outside to inside, wherein the gypsum frame (13) is provided with a plurality of accommodating grooves, and silencing cotton (15) is embedded in each accommodating groove.

2. The aluminum sound deadening barrier for high-speed rail according to claim 1, wherein: the base plate layer (11) comprises an aluminum shell (16) on two sides and a mortar layer (17) poured into the aluminum shell (16).

3. The aluminum sound deadening barrier for high-speed rail according to claim 2, wherein: a plurality of cylindrical holes (18) are formed in the bottom of the aluminum shell (16), and the mortar layer (17) is poured with the ground (25) through the cylindrical holes (18).

4. The aluminum sound deadening barrier for high-speed rail according to claim 2, wherein: the base plate layer (11) also comprises a plurality of L-shaped fixing plates (19), wherein vertical sections (21) of the L-shaped fixing plates (19) are attached to the aluminum shell (16) and welded together, and transverse sections (22) of the L-shaped fixing plates (19) are attached to the ground (25) and fixedly connected through anchor rods (20).

5. The aluminum sound deadening barrier for high-speed rail according to claim 1, wherein: an accommodating area (23) is arranged between adjacent independent noise reduction barrier units (1), and an air guide device (24) is arranged in the accommodating area (23).

6. The aluminum sound deadening barrier for high-speed rail according to claim 5, wherein: the air guiding device (24) comprises a control circuit board, a rotating motor (26), a rotating shaft (27) driven by the rotating motor (26) and a plurality of guiding sheets (28) fixed on the rotating shaft (27), wherein the rotating motor (26) is electrically connected with the control circuit board.

7. The aluminum sound deadening barrier for high-speed rail according to claim 6, wherein: the motor also comprises a protective cover shell (29) for accommodating the rotating motor (26), wherein the protective cover shell (29) is embedded in the ground (25), and the control circuit board is electrically connected with an external power supply through an embedded cable.

8. The aluminum sound deadening barrier for high-speed rail according to claim 7, wherein: the air guide device (24) further comprises a translation motor (30), a screw rod (31) driven by the translation motor (30) and a nut seat (32) screwed on the screw rod (31), the rotation motor (26) is fixed on the nut seat (32), and the translation motor (30) is electrically connected with the control circuit board.

9. The aluminum sound deadening barrier for high-speed rail according to claim 6, wherein: the guide vane (28) comprises a carbon fiber base layer (33) and an aluminum sheet layer (34) attached to the carbon fiber base layer (33).

10. The aluminum sound deadening barrier for high-speed rail according to claim 1, wherein: the independent noise reduction barrier units (1) are provided with connecting pieces (36), and the connecting pieces (36) on the adjacent independent noise reduction barrier units (1) are fixed together through adjusting screws (35).