CN211285332U

CN211285332U - Railway plastic acoustic celotex board

Info

Publication number: CN211285332U
Application number: CN201922214653.0U
Authority: CN
Inventors: 陆凯峰
Original assignee: Henan Institute of Engineering
Current assignee: Henan Institute of Engineering
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-18
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a sound-proof board technical field discloses a railway plastic sound-proof board, including the sound-proof board main part, the upper surface equidistance of sound-proof board main part is fixed with the first subassembly of making an uproar that falls, and the inside of sound-proof board main part by interior and set gradually the substrate layer, second cavity layer and the first cavity layer that bond each other outward, the inside on first cavity layer is provided with first cavity, is provided with the second in the first cavity and makes an uproar the subassembly of making an uproar, the inside on second cavity layer is provided with the second cavity. The utility model discloses a first subassembly of making an uproar of falling can be collected and obtained preliminary weakening the noise in the external world, falls the combination use on subassembly and the second cavity layer of making an uproar through the second, can inhale the sound processing to remaining noise, greatly reduced the propagation of noise, this design adopts double-deck syllable-dividing mode to fall and makes an uproar for the syllable-dividing effect of acoustic celotex board main part promotes greatly, and the cost is lower simultaneously, has wide marketing prospect.

Description

Railway plastic acoustic celotex board

Technical Field

The utility model relates to a sound-proof board technical field specifically is a railway plastic sound-proof board.

Background

Acoustical panels are a type of plate that acts as a sound insulation effect. There are building sound insulation and structure sound insulation classifications. The acoustic celotex board can not the separation by the sound of all frequencies, and the object all has natural resonant frequency, is close object resonant frequency's sound, and the syllable-dividing effect of acoustic celotex board is showing and is reducing, now, because the train on the railway can produce huge noise at the in-process of traveling, can cause noise pollution to surrounding residential block, so can set up the sound insulation protective screen on the railway limit generally and isolate the noise, and the main material of traditional sound insulation protective screen is the plastic, like the PC panel.

However, most of the existing sound insulation boards adopt a single sound insulation mode for sound insulation, so that the sound insulation effect is not ideal. Accordingly, one skilled in the art provides a plastic soundproof panel for railways to solve the problems of the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a railway plastic acoustic celotex board to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a railway plastic acoustic celotex board, includes the acoustic celotex board main part, the upper surface equidistance of acoustic celotex board main part is fixed with the first subassembly of making an uproar that falls, and the inside of acoustic celotex board main part by interior and set gradually substrate layer, second cavity layer and the first cavity layer that bonds each other outward, the inside on first cavity layer is provided with first cavity, is provided with the second in the first cavity and falls the subassembly of making an uproar, the inside on second cavity layer is provided with the second cavity.

As a further aspect of the present invention: the first subassembly of making an uproar of falling includes dust screen, first casing, second casing, falls the pad of making an uproar, the upper surface cover of first casing has connect the dust screen, and the bottom an organic whole of first casing is connected with communicating second casing, the inside fixed mounting of second casing has the pad of making an uproar of falling, and the bottom of second casing fixes the upper surface on first cavity layer, the inside of first casing still is fixed with three taper pipe narrow down wide, the inner wall symmetry of taper pipe is fixed with the protruding piece of semicircle form.

As a further aspect of the present invention: the noise reduction pad is a component made of felt materials, and the noise reduction pad and the second shell are fixed through screws.

As a further aspect of the present invention: the outer part of the first shell is in an arc shape with a wide top and a narrow bottom.

As a further aspect of the present invention: the second noise reduction assembly comprises an elbow and a noise reduction ball, the top end of the elbow is communicated with the second shell, the noise reduction ball made of mineral wool is filled in the elbow, the bottom end of the elbow is communicated with the second cavity, and the elbow is located in the first cavity and fixed with the first cavity.

As a further aspect of the present invention: the noise reduction balls are tightly attached to the inner wall of the bent pipe, and the number of the noise reduction balls is 16.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a first subassembly of making an uproar of falling can be collected and obtained preliminary weakening the noise in the external world, falls the combination use on subassembly and the second cavity layer of making an uproar through the second, can inhale the sound processing to remaining noise, greatly reduced the propagation of noise, this design adopts double-deck syllable-dividing mode to fall and makes an uproar for the syllable-dividing effect of acoustic celotex board main part promotes greatly, and the cost is lower simultaneously, has wide marketing prospect.

Drawings

FIG. 1 is a schematic structural view of a railway plastic acoustic panel;

FIG. 2 is a schematic view of a mounting structure of a first noise reduction assembly in a railway plastic acoustic panel;

fig. 3 is an enlarged view of a portion a in fig. 1.

In the figure: 1. a dust screen; 2. a first housing; 3. a second housing; 4. a noise reduction pad; 5. a first cavity layer; 6. bending the pipe; 7. a noise reduction ball; 8. a second cavity layer; 9. a substrate layer; 10. a soundproofing board main body; 11. a second noise reduction assembly; 12. a first noise reduction assembly; 13. a raised block; 14. a tapered tube.

Detailed Description

Referring to fig. 1 to 3, in an embodiment of the present invention, a railway plastic noise barrier includes a noise barrier main body 10, first noise reduction assemblies 12 are equidistantly fixed on an upper surface of the noise barrier main body 10, each of the first noise reduction assemblies 12 includes a dust screen 1, a first shell 2, a second shell 3, and a noise reduction pad 4, the dust screen 1 is sleeved on the upper surface of the first shell 2, the bottom of the first shell 2 is integrally connected to the second shell 3, the outer portion of the first shell 2 is in an arc shape with a wide top and a narrow bottom, the noise reduction pad 4 is fixedly installed inside the second shell 3, the bottom of the second shell 3 is fixed on the upper surface of the first cavity layer 5, three tapered tubes 14 with a wide top and a narrow bottom are further fixed inside the first shell 2, semicircular raised blocks 13 are symmetrically fixed on inner walls of the tapered tubes 14, the noise reduction pad 4 is made of a felt material, and the noise reduction pad 4 is fixed to the second shell 3 by screws, set up first casing 2 to the narrow arc form down of upper width, can come in the noise absorption of outside, and the noise is behind conical tube 14, bounce-back through protruding piece 13 with the noise, thereby consume the noise, because conical tube 14 is also narrow down for upper width, so the noise is when from top to bottom through conical tube 14 is inside, the noise has got weakened, then remaining noise gets weak again after the pad 4 of making an uproar falls through the below, so can collect and obtain preliminary weakening to external noise through first subassembly 12 of making an uproar falls.

In fig. 1: the noise insulation board main body 10 is internally provided with a substrate layer 9, a second cavity layer 8 and a first cavity layer 5 which are mutually bonded in sequence from inside to outside, a first cavity is arranged inside the first cavity layer 5, a second noise reduction component 11 is arranged in the first cavity, a second cavity is arranged inside the second cavity layer 8, the second noise reduction component 11 comprises an elbow pipe 6 and noise reduction balls 7, the top end of the elbow pipe 6 is communicated with the second shell 3, the noise reduction balls 7 made of mineral wool are filled inside the elbow pipe 6, the bottom end of the elbow pipe 6 is communicated with the second cavity, the elbow pipe 6 is positioned inside the first cavity and fixed with the first cavity, the noise reduction balls 7 are tightly attached to the inner wall of the elbow pipe 6, the number of the noise reduction balls 7 is 16, the residual noise is dispersed through the four elbow pipes 6 after passing through the noise reduction pad 4, and the noise in each elbow pipe 6 is weakened after passing through the noise reduction balls 7, in the rearmost partial noise got into the second cavity, so use through the combination of second noise reduction assembly 11 and second cavity layer 8, can inhale the sound processing to remaining noise, greatly reduced the propagation of noise, this design adopts double-deck syllable-dividing mode to fall and makes an uproar for the syllable-dividing effect of acoustic celotex board main part 10 promotes greatly, and the cost is lower simultaneously, has wide marketing prospect.

The utility model discloses a theory of operation is: the outer part of the first shell 2 is in an arc shape with a wide top and a narrow bottom, the first shell 2 is arranged in the arc shape with the wide top and the narrow bottom, external noise can be absorbed, the noise can be rebounded through the convex block 13 after passing through the conical tube 14, so that the noise is consumed, the conical tube 14 is also wide top and narrow bottom, so that the noise is weakened when passing through the inner part of the conical tube 14 from top to bottom, the residual noise is weakened again after passing through the lower noise reduction pad 4 because the noise reduction pad 4 is a component made of felt material and the felt has good sound insulation effect, so that the external noise can be collected and preliminarily weakened through the first noise reduction assembly 12, the residual noise is dispersed through the four bent pipes 6 after passing through the noise reduction pad 4, and the noise in each bent pipe 6 is weakened again after passing through the noise reduction ball 7, in the rearmost partial noise got into the second cavity, so use through the combination of second noise reduction assembly 11 and second cavity layer 8, can inhale the sound processing to remaining noise, greatly reduced the propagation of noise, this design adopts double-deck syllable-dividing mode to fall and makes an uproar for the syllable-dividing effect of acoustic celotex board main part 10 promotes greatly, and the cost is lower simultaneously, has wide marketing prospect.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a railway plastic acoustic celotex board, includes acoustic celotex board main part (10), its characterized in that, the upper surface equidistance of acoustic celotex board main part (10) is fixed with first subassembly (12) of making an uproar that fall, and the inside of acoustic celotex board main part (10) by interior and set gradually substrate layer (9), second cavity layer (8) and first cavity layer (5) that bond each other outward, the inside on first cavity layer (5) is provided with first cavity, is provided with the second in the first cavity and makes an uproar subassembly (11) fall, the inside on second cavity layer (8) is provided with the second cavity.

2. The railway plastic sound insulation board according to claim 1, wherein the first noise reduction assembly (12) comprises a dust screen (1), a first shell (2), a second shell (3) and a noise reduction pad (4), the dust screen (1) is sleeved on the upper surface of the first shell (2), the bottom of the first shell (2) is integrally connected with the second shell (3) which is communicated with the first shell, the noise reduction pad (4) is fixedly mounted inside the second shell (3), the bottom of the second shell (3) is fixed on the upper surface of the first cavity layer (5), three tapered tubes (14) which are wide at the top and narrow at the bottom are further fixed inside the first shell (2), and semicircular protruding blocks (13) are symmetrically fixed on the inner walls of the tapered tubes (14).

3. The plastic acoustical panel for railways according to claim 2, characterized in that the noise reduction mat (4) is a member made of felt, and the noise reduction mat (4) is fixed to the second housing (3) by screws.

4. The plastic railroad soundproofing board according to claim 2, characterised in that the outer part of the first casing (2) is in the shape of an arc with a wide top and a narrow bottom.

5. A plastic acoustic baffle for railways according to claim 1, characterized in that the second noise reduction assembly (11) comprises an elbow (6) and a noise reduction ball (7), the top end of the elbow (6) is communicated with the second housing (3), the noise reduction ball (7) made of mineral wool is filled in the elbow (6), the bottom end of the elbow (6) is communicated with the second cavity, and the elbow (6) is located in the first cavity and fixed with the first cavity.

6. The plastic acoustic baffle for railways according to claim 5, characterized in that the noise reduction balls (7) are tightly attached to the inner wall of the elbow (6), and the number of the noise reduction balls (7) is 16.