CN212135948U

CN212135948U - Combined square ventilation full-frequency sound absorption system

Info

Publication number: CN212135948U
Application number: CN201921599427.2U
Authority: CN
Inventors: 杨文文; 范兴林; 钟昊; 袁波; 范煜洁
Original assignee: Jiangsu Xinda Environmental Protection Technology Co ltd
Current assignee: Jiangsu Xinda Environmental Protection Technology Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-12-11
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a combination square tube full-frequency sound absorption system, including a plurality of A number square tube and a plurality of B number square tube, erect between each A number square tube and each B number square tube and prevent wind fossil fragments a plurality of, the shape of each A number square tube and each B number square tube is for falling "A" font, and it has sound absorbing material to fill in the inside of A number square tube and each B number square tube, is equipped with the first sound-absorbing hole of a plurality of that runs through A number square tube on each A number square tube, is equipped with a plurality of second sound-absorbing hole that runs through B number square tube on each B number square tube. Noise sound absorption of different frequencies is realized through the first sound absorption hole and the second sound absorption hole, and the full-frequency sound absorption effect is achieved.

Description

Combined square ventilation full-frequency sound absorption system

Technical Field

The utility model relates to a sound absorbing structure field, concretely relates to combination square expert is full sound absorbing system.

Background

Present public place, for example subway station, high-speed railway station, the airport, shopping mall, open places such as recreation place, the most people's voice for well low frequency of sound that needs to be absorbed, but most public places still have a lot of high frequency equipment noise and audio noise, traditional sound absorption mode adopts single porous sound absorbing material or single resonance sound absorbing structure to carry out the sound absorption mostly, because sound absorbing material's sound absorption frequency limitation, absorb single low frequency or high-frequency noise, sound absorbing effect is incomplete.

Disclosure of Invention

In order to overcome the not enough among the prior art, the utility model provides a combination square leads to full sound absorption system, its effect that has full frequency sound absorption.

In order to realize the above-mentioned mesh, the utility model discloses a combination square tube is full sound absorbing system, including a plurality of A number square tube and a plurality of B number square tube, erect between each A number square tube and each B number square tube and prevent wind fossil fragments a plurality of, the shape of each A number square tube and each B number square tube is for falling "A" font, and it has sound absorbing material and intracavity honeycomb core to fill in the inside of A number square tube and each B number square tube, is equipped with the first sound-absorbing hole of a plurality of that runs through A number square tube on each A number square tube, is equipped with the second sound-absorbing hole of a plurality of that runs through B number square tube on each B number square tube.

Further, the tip of A number square tube and each B number square tube is equallyd divide and is do not integratively provided with fast-assembling couple A and fast-assembling couple B, fast-assembling couple A and fast-assembling couple B's shape is right angle shape, be equipped with on the fossil fragments of preventing wind with fast-assembling couple A or fast-assembling couple B assorted draw-in groove, fast-assembling couple A and fast-assembling couple B and draw-in groove joint.

Furthermore, the diameter of the first sound absorption hole is 1mm-3mm, and the diameter of the second sound absorption hole is 0.3-0.5 mm.

Further, each A number square tube is equipped with top cap A, the top of B number square tube is equipped with top cap B, and top cap B pass through the rivet riveting in the both sides of A number square tube or B number square tube, are equipped with the supplementary hole of absorbing sound on top cap A and the top cap B.

Furthermore, each A-number square tube is provided with an end cover A, and two ends of the B-number square tube are provided with end covers B.

Furthermore, the sound absorption material is glass wool, and the honeycomb core in the cavity is made of aluminum.

Furthermore, each square tube A and each square tube B are arranged at intervals.

Has the advantages that: a first sound absorption hole and a second sound absorption hole in the square tube A or the square tube B respectively form a sound absorber with sound absorption materials inside the sound absorber and an intracavity honeycomb core, the sound absorption principles of the first sound absorption hole and the second sound absorption hole are different, the sound absorption capacity of noises with different high and low frequencies is different, and the first sound absorption hole and the second sound absorption hole respectively absorb noises with high frequencies and medium and low frequencies.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the whole of embodiment 1;

FIG. 2 is a schematic structural diagram of the Square tube A;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic structural diagram of the Square tube B;

fig. 5 is a sectional view at B-B in fig. 4.

Reference numerals: 1. a square tube A; 2. b, square tube; 3. a windproof keel; 101. an end cap A; 102. a first sound-absorbing aperture; 103. a sound absorbing material; 104. a top cover A; 105. a quick-mounting hook A; 201. an end cap B; 202. a second sound-absorbing hole; 203. an intra-cavity honeycomb core; 204. a top cover B; 205. and (6) a quick-mounting hook B.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

Example 1: as shown in fig. 1, a combination square tube full-frequency sound absorption system, including a plurality of a square tube 1 and a plurality of B square tube 2, a plurality of a square tube 1 and a plurality of B square tube 2 have densely distributed a plurality of first sound-absorbing hole 102 and second sound-absorbing hole 202 respectively, first sound-absorbing hole 102 and second sound-absorbing hole 202 run through a square tube 1 and B square tube 2 respectively, a square tube 1 and B square tube 2 except that the diameter of first sound-absorbing hole 102 and second sound-absorbing hole 202 is different, other is the same. A plurality of A number square tube 1 and a plurality of B number square tube 2's longitudinal section shape is for falling the A font, is equipped with the cavity in a plurality of A number square tube 1 of font and a plurality of B number square tube 2 of falling, and it has sound absorbing material 103 to fill in the 1 cavity of A number square tube, is equipped with intracavity honeycomb core 203 in the cavity of B number square tube 2, and intracavity honeycomb core 203 is aluminium system or paper. The sound absorption material 103 of the A-type square tube 1 is made of glass wool, rock wool, metal fibers or aramid fibers and has a good sound absorption effect.

As shown in fig. 3 and 5, a plurality of a number square tube 1 and a plurality of B number square tube 2 are provided with a first sound absorption hole 102 and a second sound absorption hole 202, sound passes through the first sound absorption hole 102 and then enters a plurality of a number square tube 1 sound absorption materials 103, sound waves rub in countless tiny gaps and meridians of the sound absorption materials 103, sound energy is converted into heat energy, and a sound absorption effect is achieved, a plurality of helmholtz resonators are formed by the second sound absorption holes 202 of a plurality of B number square tube 2 and an intracavity honeycomb core 203 inside the second sound absorption holes, a combination of the resonance

sound absorption structures

202 and 203 is excited by sound waves to vibrate, and a combination of a micropore resonance sound absorption structure and a thin plate resonance sound absorption structure is formed, so that sound energy is eliminated, and a sound absorption purpose is achieved.

A plurality of No. A square tube 1 and a plurality of No. B square tube 2's material is aluminum plate or steel sheet or corrosion resistant plate or polymer material, a plurality of No. A square tube 1 and a plurality of No. B square tube 2 interval setting, the diameter of first sound-absorbing hole 102 and second sound-absorbing hole 202 is different, and the aperture of first sound-absorbing hole 102 is 1mm-3mm, the aperture of second sound-absorbing hole 202 is 0.3mm-0.5mm, first sound-absorbing hole 102 and second sound-absorbing hole 202 absorb sound to high frequency and the noise of well low frequency respectively, reach the comprehensive of sound absorption.

As shown in fig. 1, a windproof keel 3 is erected between a plurality of square tubes 1A and a plurality of square tubes 2B to meet the installation requirements of the square tubes 1A and 2B. The top of No. A square tube 1 and No. B square tube 2 is two and is direct inside bend's fast-assembling couple A105 and fast-assembling couple B205, all be equipped with two draw-in grooves with fast-assembling couple A105 and fast-assembling couple B205 looks adaptation on every prevent wind fossil fragments 3, the fast-assembling couple A105 and the fast-assembling couple B205 of No. A square tube 1 and No. B square tube 2 go into the draw-in groove through pressure forced card, the afterbody component deformation recovery card of rethread fast-assembling couple A105 and fast-assembling couple B205 right angle shape is in the draw-in groove.

Prevent wind fossil fragments 3 and fix at the building top along the both ends of length, behind A number square tube 1 and B number square tube 2 and the 3 joint of preventing wind fossil fragments, the position of A number square tube 1 and B number square tube 2 in the building obtains fixing.

The length both ends of No. 1 square tube are all integrative to be equipped with end cover A101, and the both ends of No. 2 square tube end covers of B are integrative to be provided with end cover B201, are provided with top cap A104 at No. 1 square tube and an organic whole, and the an organic whole of No. 2 square tube is provided with top cap B204, and the left and right sides of No. 1 square tube and No. 2 square tube is the side waist, and top cap A104 and top cap B204 pass through rivet or towards rivet structure and two side waist fixed connection. The top cover A104 and the top cover B204 are not provided with auxiliary sound absorption holes.

Example 2: the difference with embodiment 1 is that the top cover a104 and the top cover B204 are provided with auxiliary sound absorption holes, so that the sound absorption effect of the square tube A1 and the square tube B2 is improved.

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The combined square tube full-frequency sound absorption system is characterized by comprising a plurality of A square tubes (1) and a plurality of B square tubes (2), a plurality of windproof keels (3) are erected between each A square tube (1) and each B square tube (2), each A square tube (1) and each B square tube (2) are in an inverted A shape, a sound absorption material (103) and intracavity honeycomb core (203) are respectively equipped with to the inside packing of A number square tube (1) and each B number square tube (2), each be equipped with a plurality of first sound absorption hole (102) that run through A number square tube (1) on A number square tube (1), each be equipped with a plurality of second sound absorption hole (202) that run through B number square tube (2) on B number square tube (2), a plurality of the aperture of first sound absorption hole (102) is greater than the aperture of a plurality of second sound absorption hole (202).

2. The combined square-channel full-frequency sound absorption system as claimed in claim 1, wherein the ends of the square channel A (1) and each square channel B (2) are respectively and integrally provided with a quick-assembly hook A (105) and a quick-assembly hook B (205), the quick-assembly hook A (105) and the quick-assembly hook B (205) are right-angled, a clamping groove matched with the quick-assembly hook A (105) or the quick-assembly hook B (205) is formed in the windproof keel (3), and the quick-assembly hook A (105) and the quick-assembly hook B (205) are clamped with the clamping groove.

3. A combined square-channel full-frequency sound absorption system according to claim 1, wherein the diameter of the first sound absorption hole (102) is 1mm-3mm, and the diameter of the second sound absorption hole (202) is 0.3-0.5 mm.

4. The combined square-channel full-frequency sound absorption system as claimed in claim 1, wherein each A-square channel (1) is provided with a top cover A (104), the top of the B-square channel (2) is provided with a top cover B (204), the top covers A (104) and B (204) are riveted on two sides of the A-square channel (1) or the B-square channel (2) through rivets, and auxiliary sound absorption holes are formed in the top covers A (104) and B (204).

5. A combined square-channel full-frequency sound absorption system according to claim 1, wherein each of the a square channels (1) is provided with an end cover a (101), and the two ends of the B square channel (2) are provided with end covers B (201).

6. The combined square-channel full-frequency sound absorption system as claimed in claim 1, wherein the sound absorption material (103) of the A-type square-channel (1) is glass wool, and the material of the intracavity honeycomb core (203) is aluminum.

7. A combined square-channel full-frequency sound absorption system according to claim 1, wherein each of the square-channels a (1) and the square-channels B (2) are arranged at intervals.