CN220704361U

CN220704361U - Noise reducing device for road and bridge

Info

Publication number: CN220704361U
Application number: CN202322311443.XU
Authority: CN
Inventors: 孙博; 杨艳琴
Original assignee: Bowen Construction Co ltd
Current assignee: Bowen Construction Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-02
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a sound reducing device for roads and bridges, which comprises a base and a sound reducing wall, wherein the sound reducing wall consists of two sound insulating layers and a sound reducing cavity clamped between the two sound insulating layers, an outer protection plate is arranged on the outer side surface of each sound insulating layer, a film body group is arranged in each sound reducing cavity, sound absorbing ball particles are filled in gaps between the film body groups and the sound reducing cavities, each film body group consists of a plurality of vibrating film bodies and vibrating supports arranged at the bottoms of the vibrating film bodies, each vibrating support is of an elastic supporting structure, each vibrating film body consists of a U-shaped film sheet at the bottom and wide film walls arranged at the tops of two sides of the U-shaped film sheet, and the width between the two wide film walls is larger than that of the U-shaped film sheet. The sound-deadening and sound-converting mode has the beneficial effects that the sound-deadening and sound-converting mode is used for deadening, and the sound-reducing effect is good.

Description

Noise reducing device for road and bridge

Technical Field

The utility model relates to the field of road and bridge construction auxiliary devices, in particular to a sound reducing device for roads and bridges.

Background

In the construction process of road and bridge, a large amount of noise can be generated, if the adjacent residence density is relatively large, then the noise reduction measures are needed to be applied, the noise is generally isolated through the noise reduction barrier, the noise is isolated within a certain construction range, the existing noise reduction barrier generally only carries out sound insulation and noise reduction through the sound insulation layer with the sound insulation material, and the effect is poor because the noise cannot be completely isolated for larger noise.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a noise reducing device for roads and bridges.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a road and bridge is with falling sound device, includes base and falling sound wall, falling sound wall is by two-layer puigging and clamp establish two-layer the amortization chamber between the puigging is constituteed, two-layer the outer guard plate is installed to the lateral surface of puigging, the membrane body group is installed to the amortization intracavity, the membrane body group with gap intussuseption between the amortization chamber is filled with and is inhaled sound ball granule, the membrane body group comprises a plurality of vibrating diaphragm body and installs the vibration support of vibrating diaphragm body bottom is constituteed, the vibration support is elastic supporting structure, the vibrating diaphragm body comprises the U type diaphragm of bottom and installs the wide membrane wall at U type diaphragm both sides top, two the width between the wide membrane wall is greater than the width of U type diaphragm.

Further, a top fixing strip is arranged at the top of the sound reduction wall.

Further, the vibration support comprises a vibration cavity column and a vibration rod, and one end of the vibration rod extends into the vibration cavity in the vibration cavity column and is connected with a vibration spring.

Further, a limit sliding bar is arranged at the top of the side face of the vibrating diaphragm body.

The beneficial effects are that: the sound reduction device for the road and bridge provided by the utility model is used for silencing through a sound insulation and sound conversion mode, and has a good sound reduction effect.

Drawings

Fig. 1 is a schematic diagram of a front view structure of a sound reducing device for roads and bridges according to the present utility model;

FIG. 2 is a schematic diagram of a vibrating diaphragm of a noise reducing device for roads and bridges according to the present utility model;

fig. 3 is a schematic view of a vibration support of a noise reducing device for roads and bridges according to the present utility model.

The reference numerals are explained as follows:

1. a base; 2. the sound-reducing wall, 21, a sound-insulating layer, 22, an outer protection plate, 23 and a sound-reducing cavity; 3. a top fixing strip; 4. a vibrating membrane body 41, a U-shaped membrane piece 42, a wide membrane wall 43 and a limiting slide bar; 5. the vibration support piece 51, the vibration cavity column 52, the vibration rod 53, the vibration cavity 54 and the vibration spring; 6. sound absorbing spherical particles.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings:

the sound reducing device for the road and bridge is shown in fig. 1-3, and consists of a base 1 and a sound reducing wall 2;

the sound reduction wall 2 consists of two sound insulation layers 21 and a sound reduction cavity 23 clamped between the two sound insulation layers 21, an outer protection plate 22 is arranged on the outer side surface of each sound insulation layer 21, and the sound reduction wall 2 realizes noise reduction treatment through the sound insulation layers 21 and the sound reduction cavity 23;

the sound-absorbing ball particles 6 are filled in gaps between the membrane body groups and the sound-absorbing cavity 23, and the sound-absorbing ball particles 6 reduce outward transmission of sound by converting the sound into vibration;

the membrane body group consists of a plurality of vibrating membrane bodies 4 and vibrating supports 5 arranged at the bottoms of the vibrating membrane bodies 4, wherein the vibrating supports 5 are elastic supporting structures, and certain elastic reciprocating motion exists when external force vibration is received;

the vibrating diaphragm body 4 is composed of a U-shaped diaphragm 41 at the bottom and wide diaphragm walls 42 arranged at the tops of two sides of the U-shaped diaphragm 41, and the width between the two wide diaphragm walls 42 is larger than that of the U-shaped diaphragm 41, so that the vibrating diaphragm body 4 can vibrate conveniently.

In this embodiment, the top of the sound-reducing wall 2 is provided with a top fixing strip 3, and the top fixing strip 3 is used for sealing the sound-deadening chamber 23.

In the present embodiment, the vibration supporter 5 is composed of a vibration cavity column 51 and a vibration rod 52, and one end of the vibration rod 52 extends into a vibration cavity 53 in the vibration cavity column 51 and is connected and mounted with a vibration spring 54.

In this embodiment, a limiting slide bar 43 is mounted on the top of the side surface of the vibrating membrane body 4, so as to move up and down in the silencing cavity 23 conveniently.

In the above structure, when the sound passes through the sound-reducing wall 2, one part of the sound is directly blocked by the sound-insulating layer 21, the other part of the sound enters the sound-deadening chamber 23, and the vibration of the vibration membrane body 4 and the suction ball particles 6 is driven by the vibration of the diaphragm body 4, so that the energy of part of the sound is converted into kinetic energy to be dissipated, and the sound-reducing effect is improved.

It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a road and bridge is with falling sound device which characterized in that: including base and sound-reducing wall, the sound-reducing wall comprises two-layer puigging and clamp and establishes at two-layer the amortization chamber between the puigging, two-layer the outer guard plate is installed to the lateral surface of puigging, install the membrane body group in the amortization chamber, the membrane body group with gap intussuseption between the amortization chamber is filled with and is inhaled sound ball granule, the membrane body group is by a plurality of vibrating diaphragm body and install the vibration support of vibrating diaphragm body bottom constitutes, the vibration support is elastic supporting structure, the vibrating diaphragm body comprises the U type diaphragm of bottom and installs the wide membrane wall at U type diaphragm both sides top, two the width between the wide membrane wall is greater than the width of U type diaphragm.

2. The sound reducing device for roads and bridges according to claim 1, wherein: the top of the sound reduction wall is provided with a top fixing strip.

3. The sound reducing device for roads and bridges according to claim 1, wherein: the vibration support consists of a vibration cavity column and a vibration rod, wherein one end of the vibration rod extends into the vibration cavity in the vibration cavity column and is connected with a vibration spring.

4. The sound reducing device for roads and bridges according to claim 1, wherein: and a limit sliding strip is arranged at the top of the side surface of the vibrating diaphragm body.