CN210797325U

CN210797325U - Metal composite sound absorption and insulation board for sound barrier

Info

Publication number: CN210797325U
Application number: CN201921352907.9U
Authority: CN
Inventors: 徐飞; 赵利民; 赵建龙; 潘建新; 刘丽娜; 黄燕华
Original assignee: Shanghai Zhonghui Foamed Aluminum Product Co ltd
Current assignee: Shanghai Zhonghui Foamed Aluminum Product Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-19
Anticipated expiration: 2029-08-20

Abstract

The utility model belongs to the technical field of sound barriers, and discloses a metal composite sound absorption and insulation plate for a sound barrier, which comprises a panel, wherein a back plate is arranged at the bottom of the panel, a cavity groove is arranged inside the panel, a through hole is arranged on the outer wall of the panel, a rock wool layer is arranged at the top end of the inner wall of the cavity groove, the bottom of the rock wool layer is connected with a polyester fiber layer, a foam plastic layer is arranged at the bottom of the polyester fiber layer, a vibration sheet is movably connected with the side wall of the back plate at the position positioned inside the cavity groove through a rotating shaft, the vibration sheet is positioned below the foam plastic layer, the utility model can absorb sound waves layer by layer through the rock wool layer, the polyester fiber layer and the foam plastic layer, simultaneously the vibration sheet can further filter sound, and the gap between two adjacent metal composite plates can be reduced through the mutual clamping and fastening, and then realize giving sound insulation and absorbing sound, effectually play the filter effect to the noise.

Description

Metal composite sound absorption and insulation board for sound barrier

Technical Field

The utility model belongs to the technical field of the sound barrier, concretely relates to sound barrier is with metal composite sound absorption and insulation board.

Background

The sound barrier is mainly used for sound insulation and noise reduction of highways, expressways, overhead composite roads and other noise sources and is divided into a pure sound insulation reflection type sound barrier and a sound absorption and sound insulation combined composite type sound barrier, the latter is a more effective sound insulation method and refers to a wall type structure arranged beside railways and highways for reducing the influence of driving noise on nearby residents, a sound insulation wall is also called a sound barrier, and a facility is inserted between a sound source and a receiver to ensure that sound wave propagation has a remarkable additional attenuation, so that the influence of noise in a certain area where the receiver is located is reduced, and the facility is called a sound barrier.

But there are more defects in the in-process that uses at present, for example, metal composite board's sound insulation and absorption effect is poor, can't effectually filter the noise, two adjacent metal composite boards are usually fixed through bolted connection simultaneously, concatenation department easily forms great gap, sound can be followed the gap and transmitted, thereby influence the sound insulation effect, in addition, do not set up the structure that can strengthen device stable in structure is firm, metal composite board installs when railway and highway limit, the energy that vehicle vibrations and noise produced can produce the impact to metal composite board for a long time, the strong wind and strong rain of external simultaneously hits and beat on metal composite board, all can make device inner structure take place to become flexible and cause the damage fracture, thereby influence the use of device.

Disclosure of Invention

An object of the utility model is to provide a sound barrier is with metal composite sound absorption and insulation board to it is poor to solve the sound insulation sound absorption effect that proposes in the above-mentioned background art, can't effectually filter the noise, and does not set up the problem that can strengthen the firm structure of device stable in structure.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sound barrier is with metal composite sound absorption and insulation board, includes the panel, the backplate is installed to the bottom of panel, and the inside of panel has seted up the chamber groove, the through-hole has been seted up to the outer wall of panel, the rock wool layer is installed on the inner wall top in chamber groove, the bottom on rock wool layer is connected with the polyester fiber layer, the foamed plastic layer is installed to the bottom on polyester fiber layer, the lateral wall of backplate and the position department that is located the chamber inslot portion have the vibration thin slice through pivot swing joint, the vibration thin slice is located the below of foamed plastic layer, inlay the groove has been seted up to one side of panel, and the opposite side of panel install and inlay groove assorted dop.

Preferably, the backing plate is all installed to four corners in the bottom of foamed plastic layer, be fixed with first spring in the middle of the bottom of backing plate, the one end that the backing plate was kept away from to first spring is connected with the backplate, one side that the bottom both ends of backing plate are close to first spring all is fixed with the dead lever, solid fixed cylinder is installed to the bottom of dead lever, the one end that solid fixed cylinder kept away from the dead lever is connected with the backplate, the slider is installed to the inside one end of solid fixed cylinder that the dead lever extends, the bottom of slider is fixed with the second spring, the bottom of second spring is connected with the inner wall of solid fixed cylinder.

Preferably, the inner wall of the embedding groove is provided with a sealing gasket, and the outer wall of the sealing gasket is provided with an anti-skid groove.

Preferably, the outer wall of the sliding block is provided with a rubber pad, and the outer wall of the rubber pad is provided with a sliding groove.

Preferably, the vibrating sheet is of a corrugated strip structure, and the surface of the vibrating sheet is smooth.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a rock wool layer, polyester fiber layer and foam plastic layer can absorb the sound wave layer upon layer, vibrate the filtration sound that the thin slice can be further simultaneously, through the dop with inlay the mutual block fastening in groove and can reduce the gap between two adjacent metal clad sheet, and then realize the sound absorption that gives sound insulation, effectually play the filter effect to the noise.

(2) The utility model discloses a mutual extrusion between backing plate and the backplate makes the dead lever drive the slider slightly slide in solid fixed cylinder, and then first spring receives the compression bounce-back with the second spring to can cushion the energy dissipation, reduce the vibration range of overall structure simultaneously, improve the stability of device.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

in the figure: 1-a panel; 2-embedding a groove; 3-a sealing gasket; 4-a back plate; 5-clamping the head; 6-cavity groove; 7-a backing plate; 8-fixing the rod; 9-vibrating the sheet; 10-a first spring; 11-a through hole; 12-rock wool layer; 13-a polyester fiber layer; 14-a foam plastic layer; 15-a fixed cylinder; 16-a second spring; 17-a slide block; 18-rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a metal composite sound absorption and insulation board for a sound barrier comprises a panel 1, a back plate 4 is installed at the bottom of the panel 1, a cavity groove 6 is formed in the panel 1, a through hole 11 is formed in the outer wall of the panel 1, a rock wool layer 12 is installed at the top end of the inner wall of the cavity groove 6, numerous micropores formed by air are formed in the rock wool layer 12 and can buffer and absorb sound waves reaching the rock wool layer 12, a polyester fiber layer 13 is connected to the bottom of the rock wool layer 12, the polyester fiber layer 13 is made of polyester fibers and glass fibers through hot press molding and is made of a material with a sound absorption function and similar to sound absorption characteristics of other porous materials, a cavity reserved behind the polyester fiber layer 13 and a space sound absorption body formed by the polyester fiber and the glass fibers can greatly improve the sound absorption performance of the material, a foam plastic layer 14 is installed at the bottom of the polyester fiber layer 13, the foam plastic layer 14 is light, backplate 4's lateral wall just is located 6 inside positions of chamber groove department and has vibration thin slice 9 through pivot swing joint, vibration thin slice 9 is located the below of foam plastic layer 14, inlay groove 2 has been seted up to one side of panel 1, and panel 1's opposite side install with inlay 2 assorted dop 5 in groove, through rock wool layer 12, polyester fiber layer 13 and foam plastic layer 14 can absorb the sound wave layer upon layer, later the sound wave that is subdued is through vibration thin slice 9, make the energy of vibration thin slice 9 vibration consumption sound wave, the corrugated surface of vibration thin slice 9 outer wall can be further dispersed sound wave simultaneously, fasten with inlaying 2 mutual block in groove through dop 5, thereby reduce the gap between two adjacent metal clad sheet, and then realize the sound absorption that gives sound insulation, the effectual filter effect is played the noise.

Further, four corners of the bottom of the foam plastic layer 14 are respectively provided with a backing plate 7, a first spring 10 is fixed in the middle of the bottom of the backing plate 7, one end of the first spring 10 far away from the backing plate 7 is connected with the back plate 4, one side of two ends of the bottom of the backing plate 7 close to the first spring 10 is respectively fixed with a fixed rod 8, the bottom of the fixed rod 8 is provided with a fixed cylinder 15, one end of the fixed cylinder 15 far away from the fixed rod 8 is connected with the back plate 4, one end of the fixed rod 8 extending to the inside of the fixed cylinder 15 is provided with a sliding block 17, the bottom of the sliding block 17 is fixed with a second spring 16, the bottom of the second spring 16 is connected with the inner wall of the fixed cylinder 15, when the metal composite plate is impacted by vibration energy, the backing plate 7 and the back plate 4 are mutually extruded, so that the fixed rod 8 drives the sliding block 17, therefore, energy dissipation can be buffered, the vibration amplitude of the whole structure is reduced, and the stability of the device is improved.

Further, the inner wall of the embedding groove 2 is provided with a sealing gasket 3, the sealing gasket 3 can enable two adjacent metal composite plates to be connected more tightly, and the outer wall of the sealing gasket 3 is provided with an anti-skid groove.

Specifically, a rubber pad 18 is installed on the outer wall of the sliding block 17, the rubber pad 18 plays a role in preventing slipping and stabilizing, so that the sliding block 17 is prevented from sliding at will, and a sliding groove is formed in the outer wall of the rubber pad 18.

Specifically, the vibration sheet 9 has a corrugated structure, and the surface of the vibration sheet 9 is smooth.

The utility model discloses a theory of operation and use flow: when the utility model is used, firstly, two adjacent metal composite plates are fixedly connected, and are fastened with the embedding groove 2 through the clamping head 5, gaps between the two adjacent metal composite plates can be reduced, in the using process, noise firstly enters the panel 1 through the through hole 11, then the noise passes through the rock wool layer 12, the rock wool layer 12 is internally provided with numerous micropores formed by air, the sound wave reaching the rock wool layer 12 can be buffered and absorbed, then the sound wave passes through the polyester fiber layer 13, the cavity in the polyester fiber layer 13 and the space sound absorption body formed by the cavity can effectively absorb the sound wave, then the sound wave is further filtered through the foam plastic layer 14, the absorbed sound wave passes through the vibration slice 9 layer by layer, the vibration slice 9 vibrates to consume the energy of the sound wave, meanwhile, the concave-convex surface of the outer wall of the vibration slice 9 can further disperse the sound wave, and then realize giving sound insulation and absorbing sound, effectually play the filter effect to the noise, when metal clad plate receives the shock energy and assaults, through the mutual extrusion between backing plate 7 and backplate 4, make dead lever 8 drive slider 17 slightly slide in solid fixed cylinder 15, then first spring 10 receives the compression bounce-back with second spring 16 to can cushion the energy dissipation, reduce the vibration range of overall structure simultaneously, improve the stability of device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metal composite sound absorption and insulation board for sound barrier which characterized in that: including panel (1), backplate (4) are installed to the bottom of panel (1), and cavity groove (6) have been seted up to the inside of panel (1), through-hole (11) have been seted up to the outer wall of panel (1), rock wool layer (12) are installed on the inner wall top of cavity groove (6), the bottom on rock wool layer (12) is connected with polyester fiber layer (13), foam plastic layer (14) are installed to the bottom of polyester fiber layer (13), the lateral wall of backplate (4) just is located the inside position department of cavity groove (6) and has vibration thin slice (9) through pivot swing joint, vibration thin slice (9) are located the below of foam plastic layer (14), inlay groove (2) have been seted up to one side of panel (1), and the opposite side of panel (1) install and inlay groove (2) assorted dop (5).

2. The metal composite sound absorption and insulation board for the sound barrier according to claim 1, characterized in that: backing plate (7) are all installed to four corners in the bottom of foamed plastic layer (14), be fixed with first spring (10) in the middle of the bottom of backing plate (7), the one end that backing plate (7) were kept away from in first spring (10) is connected with backplate (4), one side that the bottom both ends of backing plate (7) are close to first spring (10) all is fixed with dead lever (8), solid fixed cylinder (15) are installed to the bottom of dead lever (8), the one end that solid fixed cylinder (15) were kept away from dead lever (8) is connected with backplate (4), dead lever (8) extend to solid fixed cylinder (15) inside one end and install slider (17), the bottom of slider (17) is fixed with second spring (16), the bottom of second spring (16) is connected with the inner wall of solid fixed cylinder (15).

3. The metal composite sound absorption and insulation board for the sound barrier according to claim 1, characterized in that: the inner wall of the embedding groove (2) is provided with a sealing gasket (3), and the outer wall of the sealing gasket (3) is provided with an anti-skid groove.

4. The metal composite sound absorption and insulation board for the sound barrier according to claim 2, characterized in that: the outer wall of the sliding block (17) is provided with a rubber pad (18), and the outer wall of the rubber pad (18) is provided with a sliding groove.

5. The metal composite sound absorption and insulation board for the sound barrier according to claim 1, characterized in that: the vibrating thin sheet (9) is of a corrugated strip structure, and the surface of the vibrating thin sheet (9) is smooth.