CN219992775U - Acoustic flexible trap wallboard - Google Patents

Abstract

The utility model relates to the technical field of sound insulation materials, in particular to an acoustic flexible trap wallboard which comprises a keel, wherein the front end of the keel is fixedly connected with a sound absorbing plate, a plurality of sound absorbing holes penetrating through the front side and the back are formed in the sound absorbing plate, a first annular groove coaxial with the sound absorbing holes is formed in the front side wall of the sound absorbing plate, a second annular groove coaxial with the sound absorbing holes is formed in the rear side wall of the sound absorbing plate, an embedded ring is fixedly arranged in the first annular groove, an external threaded pipe penetrating through the sound absorbing holes is fixedly arranged at the rear end of the embedded ring, a porous cylinder connected with the external threaded pipe in a threaded mode is sleeved in the second annular groove, and the length of a part of the porous cylinder extending out of the second annular groove is one quarter of the wavelength of low-frequency noise. According to the utility model, the porous cylinder is in threaded fit with the external threaded pipe embedded in the acoustic panel, so that the length of the porous cylinder extending out of the acoustic panel can be adjusted according to the actual field installation requirement, single-frequency noise can be processed more accurately, and the noise pollution problem can be effectively treated.

Description

Acoustic flexible trap wallboard

Technical Field

The utility model relates to the technical field of sound insulation materials, in particular to an acoustic flexible trap wallboard.

Background

At present, the noise pollution and complaint rate are more and more, a plurality of sound insulation and noise reduction technologies are layered endlessly, most of the sound insulation and noise reduction technologies have the treatment effect on medium-high frequency noise, but the low frequency noise mainly affects the life of people, and the single frequency is possibly too high, so that the weight of the whole noise A is out of standard. Therefore, the utility model provides an acoustic flexible trap wallboard, which is designed for single frequency, can more accurately process single frequency noise and effectively solve the problem of noise pollution.

Disclosure of Invention

The present utility model is directed to an acoustic trap wall panel to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sound flexible trap wallboard, includes fixed mounting in the fossil fragments of wall body front side, fossil fragments's front end fixedly connected with abatvoix, offer the sound absorbing hole that runs through around a plurality of on the abatvoix, offered on the front lateral wall of abatvoix with the first annular of sound absorbing hole coaxial line, just offered on the back lateral wall of abatvoix with the second annular of sound absorbing hole coaxial line, first annular internal fixation is equipped with the thimble, the rear end of thimble is fixed with and runs through the outer screwed pipe of sound absorbing hole, the second annular endotheca be equipped with the porous cylinder of outer screwed pipe screw thread connection, stretch out on the porous cylinder the part length of second annular is the quarter of low frequency noise wavelength.

Optionally, the fossil fragments are equipped with along a plurality of that upper and lower direction interval set up, and just be located between two adjacent fossil fragments the outside of porous cylinder is filled with and is inhaled the sound cotton.

Optionally, the porous cylinder is in the rear side of abatvoix is matrix evenly distributed, the porous cylinder is the hollow cylinder that runs through from front to back, a plurality of blind hole has been seted up on the hollow inner wall of porous cylinder, the trompil direction of blind hole is kept away from porous cylinder axis.

Optionally, a first internal thread which is matched with the external thread of the external thread pipe is formed on the hollow inner wall of the porous cylinder, and the first internal thread is a right-handed thread with a thread lead angle less than or equal to 73 degrees.

Optionally, a light pipe is fixedly arranged between the caulking ring and the external thread pipe, the outer diameter of the light pipe is equal to the aperture of the sound absorption hole, the outer diameter of the light pipe is smaller than or equal to the outer diameter of the external thread pipe, a second internal thread is jointly arranged on the inner wall of the light pipe and the inner wall of the external thread pipe, and the second internal thread is a right-handed thread with a thread rise angle smaller than or equal to 73 degrees.

Optionally, the rear end of porous cylinder is fixed to be cup jointed the filter screen, the filter screen is dome shape structure.

Compared with the prior art, the utility model has the following beneficial effects: the sound absorbing plate is simple to install and easy to detach, the length of the porous cylinder extending out of the sound absorbing plate can be adjusted according to the actual field installation requirement by matching the porous cylinder with the external thread pipe embedded in the sound absorbing plate, so that the porous cylinder can process specific low-frequency noise in a certain range, namely more accurately process single-frequency noise, effectively treat noise pollution, and is suitable for acoustic places such as theatres, concert halls, theatres, recording rooms, studio, monitoring rooms, meeting rooms, gymnasiums, exhibition halls, singing halls, KTV rooms, family film hall factories, silence rooms, courts, reporting halls, interrogation rooms and the like.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged schematic view of the portion a in fig. 1.

In the figure: 1. a wall body; 2. a keel; 3. a sound absorbing panel; 4. a sound absorbing hole; 5. a first ring groove; 6. a second ring groove; 7. a caulking ring; 8. an external threaded tube; 9. a porous cylinder; 10. sound absorbing cotton; 11. a first internal thread; 12. a light pipe; 13. a second internal thread; 14. and (5) a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1 and 2, the utility model provides an acoustic flexible trap wallboard, which comprises a keel 2 fixedly installed on the front side of a wall body 1, wherein the keel 2 is a wood keel or a light steel keel, the keel 2 is provided with a plurality of spaced along the up-down direction, the front end of the keel 2 is fixedly connected with an acoustic board 3, the acoustic board 3 is provided with a plurality of acoustic holes 4 penetrating through the front and back, the front side wall of the acoustic board 3 is provided with a first annular groove 5 coaxial with the acoustic holes 4, the rear side wall of the acoustic board 3 is provided with a second annular groove 6 coaxial with the acoustic holes 4, an embedded ring 7 is fixedly arranged in the first annular groove 5, the rear end of the embedded ring 7 is fixedly provided with an external thread pipe 8 penetrating the acoustic holes 4, a porous cylinder 9 connected with the external thread pipe 8 is sleeved in the second annular groove 6, and a sound absorbing cotton 10 is filled between two adjacent keels 2 and positioned outside the porous cylinder 9.

Wherein, porous cylinder 9 is matrix evenly distributed in the rear side of abatvoix 3, and porous cylinder 9 is the hollow cylinder that runs through from beginning to end, has seted up a plurality of blind hole on the cavity inner wall of porous cylinder 9, and the trompil direction of blind hole is kept away from porous cylinder 9 axis, and the design of blind hole makes the cavity inner wall of porous cylinder 9 have micropore and clearance, can effectively block the propagation of noise. The length of the part of the porous cylinder 9 extending out of the second annular groove 6 is one quarter of the wavelength of low-frequency noise, the acoustic impedance of the part of the porous cylinder for one quarter of the wavelength is zero, the acoustic pressure is also zero, and the part of the porous cylinder can treat single-frequency noise.

The utility model has simple installation and easy disassembly, and the length of the porous cylinder 9 extending out of the sound-absorbing plate 3 can be slightly adjusted according to the actual field installation requirement by the threaded cooperation of the porous cylinder 9 and the external threaded pipe 8 embedded in the sound-absorbing plate 3, so that the porous cylinder 9 can process specific low-frequency noise within a certain range, namely more accurately process single-frequency noise, and effectively solve the problem of noise pollution.

On the basis of the above embodiment, the hollow inner wall of the porous cylinder 9 in this embodiment is provided with a first internal thread 11 which is anastomotic with the external thread of the external thread pipe 8, and the first internal thread 11 is a right-handed thread with a thread lead angle less than or equal to 73 °. A light pipe 12 is fixedly arranged between the caulking ring 7 and the external thread pipe 8, the outer diameter of the light pipe 12 is equal to the aperture of the sound absorption hole 4, the outer diameter of the light pipe 12 is smaller than or equal to the external thread outer diameter of the external thread pipe 8, a second internal thread 13 is jointly arranged on the inner wall of the light pipe 12 and the inner wall of the external thread pipe 8, and the second internal thread 13 is a right-handed thread with a thread lift angle smaller than or equal to 73 degrees. Due to the right-handed thread structure, the first internal thread 11 and the second internal thread 13 increase the resistance of noise entering the porous cylinder 9, and can effectively reduce noise.

On the basis of the above embodiment, in this embodiment, the rear end of the porous cylinder 9 is fixedly sleeved with the filter screen 14, the filter screen 14 is in a dome-shaped structure, and the filter screen 14 can isolate the communication between the hollow inner wall of the porous cylinder 9 and the sound-absorbing cotton 10. After long-term use, dust can not be accumulated in the external threaded pipe 8 and the porous cylinder 9, dust can be removed through the dust collector, and the filter screen 14 in the dust removal process can prevent the sound absorbing cotton 10 from entering the porous cylinder 9, so that the porous cylinder 9 is effectively prevented from being blocked.

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

Claims (6)

1. The utility model provides a flexible trap wallboard of sound, includes fossil fragments (2) of fixed mounting in wall body (1) front side, the front end fixedly connected with abatvoix (3), its characterized in that: the sound absorbing plate (3) is provided with a plurality of sound absorbing holes (4) penetrating through the sound absorbing plate (3), the front side wall of the sound absorbing plate (3) is provided with a first annular groove (5) coaxial with the sound absorbing holes (4), the rear side wall of the sound absorbing plate (3) is provided with a second annular groove (6) coaxial with the sound absorbing holes (4), the first annular groove (5) is internally fixed with an embedded ring (7), the rear end of the embedded ring (7) is fixedly provided with an external threaded pipe (8) penetrating through the sound absorbing holes (4), the second annular groove (6) is internally sleeved with a porous cylinder (9) connected with the external threaded pipe (8) in a threaded mode, and the porous cylinder (9) stretches out of one quarter of the length of the second annular groove (6) which is low-frequency noise wavelength.

2. An acoustic trap wall panel as claimed in claim 1 wherein: the keels (2) are provided with a plurality of keels which are arranged along the vertical direction at intervals, and sound absorbing cotton (10) is filled between two adjacent keels (2) and positioned on the outer side of the porous cylinder (9).

3. An acoustic trap wall panel as claimed in claim 1 wherein: the porous cylinder (9) is in the rear side of abatvoix (3) is matrix evenly distributed, porous cylinder (9) are the hollow cylinder that runs through from front to back, a plurality of blind hole has been seted up on the hollow inner wall of porous cylinder (9), the trompil direction of blind hole is kept away from porous cylinder (9) axis.

4. An acoustic trap wall panel as claimed in claim 3 wherein: the hollow inner wall of the porous cylinder (9) is provided with a first internal thread (11) which is matched with the external thread of the external thread pipe (8), and the first internal thread (11) is a right-handed thread with a thread lead angle less than or equal to 73 degrees.

5. An acoustic trap wall panel as defined in claim 4 wherein: the novel sound absorbing device is characterized in that a light pipe (12) is fixedly arranged between the embedded ring (7) and the externally threaded pipe (8), the outer diameter of the light pipe (12) is equal to the aperture of the sound absorbing hole (4), the outer diameter of the light pipe (12) is smaller than or equal to the outer diameter of the external thread of the externally threaded pipe (8), a second internal thread (13) is jointly formed in the inner wall of the light pipe (12) and the inner wall of the externally threaded pipe (8), and the second internal thread (13) is a right-handed thread with a thread lifting angle smaller than or equal to 73 degrees.

6. An acoustic trap wall panel as claimed in claim 3 wherein: the rear end of the porous cylinder (9) is fixedly sleeved with a filter screen (14), and the filter screen (14) is of a round cover-shaped structure.