CN212643889U

CN212643889U - Sheet type silencer

Info

Publication number: CN212643889U
Application number: CN202021437131.3U
Authority: CN
Inventors: 陈敏华
Original assignee: Hangzhou Nuohong Ventilation Equipment Co ltd
Current assignee: Hangzhou Nuohong Ventilation Equipment Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-02
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a sheet silencer, including the silencer main part, first fixed chuck is installed to the upper end of silencer main part, and the second fixed chuck is installed to the lower extreme of silencer main part, and the surface of first fixed chuck and second fixed chuck all is provided with fixed slotted hole, the internally mounted of silencer main part has compound sound absorption layer, and the surface coating on compound sound absorption layer has rock wool board main part, the inside on compound sound absorption layer comprises inhaling cotton, acoustic celotex board, the cotton layer of foaming and rubber strip jointly, inhale the cotton surface of sound cotton parcel at the acoustic celotex board, the acoustic celotex board is located the positive centre on inhaling cotton and the cotton layer of foaming, and the rubber strip is located the lower surface on the cotton layer of foaming. The utility model discloses a be provided with slotted hole fixed knot structure to the last lower extreme of muffler main part and side surface, it is fixed that the convenience carries out diversified installation to the muffler, installs the compound sound absorbing layer that multiunit sound-proof material constitutes simultaneously, plays good syllable-dividing noise reduction effect.

Description

Sheet type silencer

Technical Field

The utility model relates to a silencer technical field specifically is a piece formula silencer.

Background

The silencer is used for the airflow pipeline with noise transmission, and can attenuate or reflect the noise in the pipeline by using noise reduction devices such as pipelines and elbows with sound absorption linings or pipelines with suddenly changed sectional areas and other discontinuous acoustic impedances. The former is called resistive muffler, the latter is called reactive muffler, and there are also impedance compound mufflers. The mufflers are of various types, but the muffling mechanism is considered, and the mufflers can be divided into six main types, namely resistive mufflers, reactive mufflers, resistive composite mufflers, micro-perforated plate mufflers, small-hole mufflers and active mufflers. The muffler outer cover can be processed into a tile shape or rolled into a pan shape according to the space condition of the bottom of the automobile. The cover of the pot-shaped silencer is formed by using a round mandrel to form a cover material, and the cover material is occluded or integrally installed by welding, and welded components are installed in the interface. The pan-shaped silencer consists of an inner pipe, a steering elbow and a middle bottom plate, and then the outer bottom plate is connected with the outer cover through groove combination or welding.

The current chip type silencer is not installed and fixed tightly, and the sound insulation effect is poor, so that a novel chip type silencer is urgently needed to be developed in the market.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piece formula silencer to the current piece formula silencer installation that proposes in solving above-mentioned background art is fixed inseparable, gives sound insulation the relatively poor problem of effect simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sheet silencer, includes the silencer main part, first fixed chuck is installed to the upper end of silencer main part, and second fixed chuck is installed to the lower extreme of silencer main part, and first fixed chuck and second fixed chuck's surface all is provided with fixed slotted hole, the internally mounted of silencer main part has compound sound absorption layer, and the surface coating on compound sound absorption layer has rock wool board main part, the inside on compound sound absorption layer comprises inhaling cotton, acoustic celotex board, foaming cotton layer and rubber strip jointly, inhale the cotton parcel of sound at the surface of acoustic celotex board, the acoustic celotex board is located inhales the centre on cotton and foaming cotton layer, and the rubber strip is located the lower surface on foaming cotton layer.

Preferably, the first fixing chuck and the second fixing chuck are both in a semicircular structure.

Preferably, the surface of rock wool board main part is provided with the sound absorption slotted hole.

Preferably, the front end of the silencer main body is provided with three groups of fixing supports.

Preferably, the sound-proof plate has a thickness of 5 mm.

Preferably, the front end surface of the silencer main body is provided with an outer wall pore plate, and the surface of the outer wall pore plate is provided with a fixing groove hole.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the silencer is characterized in that a first fixing chuck is mounted at the upper end of a silencer main body, a second fixing chuck is mounted at the lower end of the silencer main body, fixing slotted holes are formed in the surfaces of the first fixing chuck and the second fixing chuck, an outer wall pore plate is arranged on the surface of the front end of the silencer main body, fixing slotted holes are formed in the surface of the outer wall pore plate, and slotted hole fixing structures are arranged on the upper end, the lower end and the side surface of the silencer main body, so that the silencer can be conveniently and fixedly mounted in multiple directions, and the advantages of convenience in mounting and dismounting and;

(2) the internally mounted of silencer main part has compound sound absorbing layer, the surface coating on compound sound absorbing layer has rock wool board main part, the inside on compound sound absorbing layer is by inhaling the sound cotton, the acoustic celotex board, the cotton layer of foaming and rubber strip are constituteed jointly, rock wool board main part possesses good sound absorption and noise reduction effect, install the compound sound absorbing layer that multiunit acoustic material constitutes simultaneously, it is the porous environmental protection acoustic material of PVC to inhale the sound cotton, the acoustic celotex board is a plate that acts on sound insulation effect, mutually support between each subassembly and play good sound insulation and noise reduction effect.

Drawings

FIG. 1 is a schematic view of the main structure of the muffler of the present invention;

FIG. 2 is a schematic view of the external structure of the muffler body according to the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a front view of the present invention;

fig. 5 is a schematic view of the internal structure of the composite sound absorbing layer of the present invention.

In the figure: 1. fixing the slotted hole; 2. a first fixed chuck; 3. an outer wall orifice plate; 4. a composite sound absorbing layer; 5. fixing a bracket; 6. a sound absorbing slot hole; 7. a rock wool panel body; 8. a second fixed chuck; 9. a muffler main body; 10. sound-absorbing cotton; 11. a sound insulating board; 12. a foamed cotton layer; 13. a rubber strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides a sheet silencer, including silencer main part 9, first fixed chuck 2 is installed to the upper end of silencer main part 9, second fixed chuck 8 is installed to the lower extreme of silencer main part 9, first fixed chuck 2 all is provided with fixed slotted hole 1 with the surface of second fixed chuck 8, the internally mounted of silencer main part 9 has compound sound absorption layer 4, the surface coating on compound sound absorption layer 4 has rock wool board main part 7, the inside on compound sound absorption layer 4 is by inhaling sound cotton 10, acoustic celotex board 11, foaming cotton layer 12 and rubber strip 13 are constituteed jointly, inhale the surface of sound cotton 10 parcel at acoustic celotex board 11, acoustic celotex board 11 is located the centre of inhaling sound cotton 10 and foaming cotton layer 12, rubber strip 13 is located the lower surface of foaming cotton layer 12.

Further, the first fixing chuck 2 and the second fixing chuck 8 are both in a semicircular structure.

Further, the surface of rock wool board main part 7 is provided with sound absorbing slot hole 6.

Further, the front end of the muffler main body 9 is provided with a fixing bracket 5, and the fixing bracket 5 is provided with three groups.

Further, the sound insulating board 11 has a thickness of 5 mm.

Further, an outer wall orifice plate 3 is provided on the front end surface of the muffler main body 9, and a fixing groove hole 1 is provided on the surface of the outer wall orifice plate 3.

The working principle is as follows: when in use, the upper end of the muffler main body 9 is provided with a first fixing chuck 2, the lower end of the muffler main body 9 is provided with a second fixing chuck 8, the surfaces of the first fixing chuck 2 and the second fixing chuck 8 are respectively provided with a fixing slotted hole 1, the front end surface of the muffler main body 9 is provided with an outer wall orifice plate 3, the surface of the outer wall orifice plate 3 is provided with a fixing slotted hole 1, the upper end, the lower end and the side surface of the muffler main body 9 are provided with slotted hole fixing structures to facilitate multidirectional installation and fixation of the muffler, so that the advantages of convenient installation and disassembly and close and stable connection are achieved, the inside of the muffler main body 9 is provided with a composite sound absorption layer 4, the surface of the composite sound absorption layer 4 is wrapped with a rock wool plate main body 7, the inside of the composite sound absorption layer 4 is jointly composed of sound absorption cotton 10, a sound insulation plate 11, a foam cotton layer 12 and a rubber strip, inhale sound cotton 10 and be the porous environmental protection sound absorbing material of PVC, acoustic celotex board 11 is a plate that acts on the sound insulation effect, mutually supports between each subassembly and plays good sound insulation noise reduction effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a sheet silencer, includes silencer main part (9), its characterized in that, first fixed chuck (2) are installed to the upper end of silencer main part (9), and second fixed chuck (8) are installed to the lower extreme of silencer main part (9), and the surface of first fixed chuck (2) and second fixed chuck (8) all is provided with fixed slotted hole (1), the internally mounted of silencer main part (9) has compound sound absorption layer (4), and the surface coating on compound sound absorption layer (4) has rock wool board main part (7), the inside on compound sound absorption layer (4) comprises inhaling sound cotton (10), acoustic celotex board (11), foaming cotton layer (12) and rubber strip (13) jointly, inhale the surface of sound cotton (10) parcel at acoustic celotex board (11), inhale the sound celotex board (11) and be located the centre of sound cotton (10) and foaming cotton layer (12), the rubber strip (13) is positioned on the lower surface of the foam cotton layer (12).

2. The chip muffler according to claim 1, wherein: the first fixed chuck (2) and the second fixed chuck (8) are both in a semicircular structure.

3. The chip muffler according to claim 1, wherein: and the surface of the rock wool board main body (7) is provided with a sound absorption groove hole (6).

4. The chip muffler according to claim 1, wherein: the front end of the silencer main body (9) is provided with a fixed support (5), and the fixed support (5) is provided with three groups.

5. The chip muffler according to claim 1, wherein: the thickness of the sound insulation board (11) is 5 mm.

6. The chip muffler according to claim 1, wherein: an outer wall pore plate (3) is arranged on the front end surface of the silencer main body (9), and a fixing groove hole (1) is arranged on the surface of the outer wall pore plate (3).