CN205421581U - Noise elimination system with wedge - Google Patents

Abstract

The utility model discloses a sound-absorbing system with a wedge. The key point of the technical scheme is to include a floating ground, a sound-insulating wall, and a sound-insulating ceiling. Both the sound-insulating wall and the sound-insulating ceiling are provided with insulation Sound board, the sound insulation board is provided with several sound insulation groups, the sound insulation group includes two sound-absorbing wedges, and the sound-absorbing wedges include an inverted V-shaped sound-absorbing board, a fixed bottom plate, and a sealing plate. The sound-absorbing board is fixed on the fixed bottom plate, and the sealing plate is fixedly connected to both ends of the sound-absorbing board. The side of the fixed bottom board close to the sound-absorbing board is fixed with an arc-shaped elastic arch plate, and the elastic arch plate is provided with a sound-absorbing rod. The end of the sound-absorbing rod away from the elastic arch plate is connected to the sound-absorbing board, and the sound-absorbing rod is wave-shaped.

Description

A muffling system with a wedge

technical field

The utility model relates to a muffler system with a wedge.

Background technique

With the continuous improvement of the current level of science and technology, the demand for acoustic experiments has also continued to increase. Therefore, the design of the anechoic system in the anechoic chamber plays a very important role in the anechoic chamber at present, and is currently in the anechoic chamber. Sound-absorbing wedges are often used, such as a sound-absorbing wedge disclosed on the patent website (application number: 201310270604.3). The system needs to use multi-layer sound insulation boards, and install sound insulation groups on the sound insulation boards, resulting in high requirements for the strength of the connection structure between multi-layer sound insulation boards, resulting in difficult installation and low sound absorption efficiency.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a silencing system with wedges which has a good silencing effect.

In order to achieve the above purpose, the utility model provides the following technical solutions: a noise reduction system with wedges, including floating ground, sound insulation wall, sound insulation ceiling, the sound insulation wall and the sound insulation ceiling All are equipped with sound insulation boards, and several sound insulation groups are arranged on the sound insulation boards. The sound insulation groups include two sound-absorbing wedges, and the sound-absorbing wedges include an inverted V-shaped sound-absorbing The sound-absorbing plate is fixed on the fixed bottom plate, and the sealing plate is fixedly connected to both ends of the sound-absorbing plate. The side of the fixed bottom plate close to the sound-absorbing plate is fixed with an arc-shaped elastic arch plate, and the elastic arch plate is set There is a sound-absorbing rod, and the end of the sound-absorbing rod away from the elastic arch plate is connected with the sound-absorbing board, and the sound-absorbing rod is wave-shaped.

The utility model is further configured as: several sound-absorbing flocs are fixedly connected to the sound-absorbing rod.

The utility model is further configured as follows: the sealing plate is provided with a ventilation hole, the middle part of the sound-absorbing panel is provided with a partition, and the partition is provided with a blocking through hole, and the diameter of the ventilation hole is larger than the diameter of the blocking through hole.

In summary, the utility model has the following beneficial effects: the sound-absorbing wedge adopts a V-shaped sound-absorbing panel, and a triangular sound-absorbing structure is formed through the sound-absorbing panel, the sealing plate, and the fixed bottom plate, so that a hollow sound-absorbing wedge is formed in the sound-absorbing wedge. structure, thereby effectively reducing the total weight, thereby effectively slowing down the connection strength requirements for the sound insulation board, and because the interior is hollow, the vibration generated by the noise can be effectively transmitted to the interior of the sound-absorbing wedge, thereby effectively avoiding The sound-absorbing rod is connected to the elastic arch plate and the sound-absorbing board, and because the sound-absorbing rod is wave-shaped, the sound-absorbing rod can also maintain a good elastic effect, so that the noise The generated vibration can effectively act on the sound-absorbing rod, so that the sound-absorbing rod can effectively absorb the noise, and then effectively convert the noise into elastic kinetic energy, thereby effectively consuming the energy of the noise, thereby effectively reducing the transmission of noise, thereby improving Sound insulation and noise reduction effect.

Description of drawings

Fig. 1 is the structural diagram of the utility model embodiment;

Fig. 2 is a structural diagram of the sound-absorbing wedge of the embodiment of the present invention.

Reference signs: 1. floating ground; 2. sound-insulating wall; 3. sound-insulating ceiling; 4. sound-insulating board; 5. sound-absorbing wedge; 51. sound-absorbing board; 531, ventilation holes; 54, elastic arches; 55, sound-absorbing rods; 551, sound-absorbing wool; 56, partitions; 561, blocking through holes.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

A sound attenuation system with wedges, comprising a floating floor 1, a sound insulation wall 2, and a sound insulation ceiling 3, the sound insulation wall 2 and the sound insulation ceiling 3 are both provided with a sound insulation board 4, so The sound insulation board 4 is provided with several sound insulation groups, the sound insulation group includes two sound-absorbing wedges 5, and the sound-absorbing wedge 5 includes an inverted V-shaped sound-absorbing panel 51, a fixed bottom plate 52, and a sealing plate 53, The sound-absorbing plate 51 is fixed on the fixed base plate 52, the sealing plate 53 is fixedly connected to both ends of the sound-absorbing plate 51, and the fixed base plate 52 is fixed with an arc-shaped elastic arch plate 54 on the side close to the sound-absorbing plate 51. The elastic arch 54 is provided with a sound-absorbing rod 55 , and the end of the sound-absorbing rod 55 away from the elastic arch 54 is connected to the sound-absorbing plate 51 , and the sound-absorbing rod 55 is wave-shaped.

The sound-absorbing wedge 5 adopts a V-shaped sound-absorbing panel 51, and a triangular sound-absorbing structure is formed by the sound-absorbing panel 51, the sealing plate 53, and the fixed bottom plate 52, so that a hollow structure is formed in the sound-absorbing wedge 5, thereby effectively reducing The total weight, thus effectively slowing down the connection strength requirements of the sound insulation board 4, and because the interior is hollow, the vibration generated by the noise can be effectively transmitted to the interior of the sound-absorbing wedge 5, thereby effectively avoiding the further diffusion of noise , and since the elastic arch 54 is provided inside, and the sound-absorbing rod 55 is connected between the elastic arch 54 and the sound-absorbing board 51, and since the sound-absorbing rod 55 is wave-shaped, the sound-absorbing rod 55 can also maintain a good elastic effect, thereby The vibration generated by the noise can effectively act on the sound-absorbing rod 55, so that the sound-absorbing rod 55 can effectively absorb the noise, and then effectively convert the noise into elastic kinetic energy, thereby effectively consuming the energy of the noise and effectively reducing the transmission of noise , thereby improving the sound insulation and noise reduction effect.

The sound-absorbing rod 55 is fixedly connected with several sound-absorbing fluffs 551. Since the sound-absorbing rod 55 is provided with sound-absorbing fluffs 551, the transmitted noise can be effectively captured and transferred to the sound-absorbing rod 55, thereby effectively improving the noise level. The absorption effect is very good, and the fluffy structure will vibrate after capturing energy, so that the sound-absorbing fluff 551 can effectively generate friction, thereby converting noise energy into heat energy, thereby effectively improving energy consumption.

The sealing plate 53 is provided with a ventilation hole 531, the middle part of the sound-absorbing panel 51 is provided with a partition 56, and the partition 56 is provided with a blocking through hole 561, and the diameter of the ventilation hole 531 is larger than the diameter of the blocking through hole 561. Since the sound-absorbing panel 51 is provided with a ventilation hole 531, the air can effectively flow inside the sound-absorbing wedge 5, so that the noise can be effectively transmitted to the inside of the sound-absorbing wedge 5, thereby effectively improving the effect of absorbing noise. efficiency, and because the middle part is provided with a blocking through hole 561, and the diameter of the blocking through hole 561 is small, so that when the gas flows in, it can effectively stay inside the sound-absorbing wedge 5, thereby effectively improving the sound-absorbing effect.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (3)

1. A kind of sound-absorbing system with wedge, comprises floating building ground (1), soundproof wall surface (2), soundproof suspended ceiling (3), described soundproof wall surface (2) and soundproof suspended ceiling ( 3) are equipped with sound insulation panels (4), characterized in that: the sound insulation panels (4) are provided with several sound insulation groups, the sound insulation groups include two sound-absorbing wedges (5), the The sound-absorbing wedge (5) includes an inverted V-shaped sound-absorbing plate (51), a fixed base plate (52), and a sealing plate (53), and the sound-absorbing plate (51) is fixed on the fixed base plate (52), and the sealing plate (53) fixedly connected to both ends of the sound-absorbing board (51), the fixed bottom plate (52) is fixed with a circular arc-shaped elastic arch (54) near the sound-absorbing board (51), and the elastic arch (54) A sound-absorbing rod (55) is arranged on it, and the end of the sound-absorbing rod (55) away from the elastic arch (54) is connected to the sound-absorbing board (51), and the sound-absorbing rod (55) is in a wave shape. 2. The sound-absorbing system with wedges according to claim 1, characterized in that: several sound-absorbing fluffs (551) are fixedly connected to the sound-absorbing rod (55). 3. A noise reduction system with sharp wedges according to claim 2, characterized in that: said sealing plate (53) is provided with air holes (531), and the middle part of said sound-absorbing board (51) is provided with A partition (56), the partition (56) is provided with a blocking through hole (561), and the diameter of the ventilation hole (531) is larger than the diameter of the blocking through hole (561).