An exhaust soundproofing cover

Abstract

The utility model provides a kind of exhaust soundproofing shroud, including shroud main body, soundproof board and exhaust sound reduction component.The shroud main body is equipped with protective space and air inlet space inside.The soundproof board is at least two pieces, and staggered and spaced installation is formed between the protective space and air inlet space zigzag or circuitous air inlet passage, and the air inlet space is equipped with air inlet louvre.The exhaust sound reduction component includes air inlet pipe, muffler and exhaust pipe communicated sequentially, the air inlet end of air inlet pipe extends into protective space, and the exhaust end of exhaust pipe extends to the accommodation opening of shroud main body peripheral wall.The exhaust soundproofing shroud provided by the utility model forms zigzag or circuitous air inlet passage between protective space and air inlet space by the soundproof board, on the basis of not affecting air inlet, most of noise emitted by engine can be resisted and absorbed, reduce the transmission of noise, in addition, the muffler can also absorb noise carried by engine exhaust, further improve the sound reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of engine cover technology, and in particular to an exhaust noise reduction cover. Background Technology

[0002] Larger engines are often installed outdoors. To avoid exposure to wind and sun and to improve safety, outdoor engines require protective covers. Traditional engine covers have simple structures but suffer from the following problems: 1. Poor sound insulation, resulting in significant noise pollution during engine operation, causing disturbance to residents or creating a poor working environment; 2. A balance between ventilation performance and sound insulation cannot be achieved simultaneously. Therefore, this invention provides a ventilation and noise reduction cover structure that solves the above-mentioned technical problems. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a generator protective cover structure with good sound insulation effect.

[0004] An exhaust noise-reducing cover includes a cover body, a sound insulation panel, and an exhaust noise reduction assembly. Specifically,

[0005] The main body of the cover has a protective space and an air intake space, which are used to install the engine and intake air respectively. The protective space and the air intake space are separated by a sound insulation plate, which can reduce the engine noise transmitted from the air intake of the exhaust silencer cover.

[0006] The sound insulation panels are at least two pieces, installed in an alternating and spaced manner, forming a tortuous or meandering air intake channel between the protective space and the air intake space, thereby blocking and absorbing most of the noise and reducing the transmission of engine noise. The main wall of the protective cover opposite the sound insulation panels in the air intake space is provided with air intake louvers.

[0007] The exhaust muffler assembly includes an intake pipe, a muffler, and an exhaust pipe connected in sequence. The muffler is installed inside the protective cover body. The intake end of the intake pipe extends into the protective space, while the exhaust end of the exhaust pipe extends to the clearance opening reserved on the peripheral wall of the protective cover body and extends to the outside of the protective cover body, thereby discharging engine exhaust gas outside the protective cover.

[0008] The exhaust noise reduction shield provided by this utility model forms a tortuous or meandering air intake channel between the protective space and the air intake space through the sound insulation plate. Without affecting the air intake, it can block and absorb most of the noise emitted by the engine and reduce the external transmission of noise. In addition, the muffler is also added, which can also absorb the noise carried by the engine exhaust gas, further improving the noise reduction effect.

[0009] Preferably, the clearance opening is located on the upper part of the cover body, thereby increasing the height of the engine exhaust port and preventing it from being flooded by water during rain.

[0010] Preferably, the muffler is a seated muffler.

[0011] Preferably, the seated muffler is installed near the space between the protective space and the air intake space. The section connecting the air intake pipe and the exhaust pipe to the muffler is a vertical pipe. The vertical pipe provides support for the installation of the sound insulation panel, thereby improving the installation firmness of the sound insulation panel and simplifying the mechanism.

[0012] Preferably, the sound insulation panel includes a middle panel and two side panels. The middle panel is disposed between the muffler and the protective space, and its two sides are spaced apart from the side walls of the main body of the protective cover. The two side panels are respectively installed on the side walls of the protective body on both sides of the middle panel, and their other sides abut against the two vertical pipes. The two side panels are located between the middle panel and the air intake space, and are spaced apart from the middle panel, thereby forming two L-shaped air intake channels, which not only provide sufficient air intake but also have a high sound insulation effect.

[0013] Preferably, the sound insulation panel includes sound-absorbing cotton and a mounting frame, wherein the sound-absorbing cotton is installed inside the protective cover body via the mounting frame.

[0014] Preferably, the intake end of the intake pipe is connected to the intake connector via a corrugated pipe, thereby giving the intake connector high flexibility and adaptability to the exhaust ports of various engines.

[0015] Preferably, the main body of the protective cover is provided with inspection doors, and there are at least two inspection doors, which are respectively located on both sides of the protective space to facilitate maintenance work.

[0016] Preferably, the inspection door is equipped with a transparent observation window, through which maintenance personnel can directly view the engine status.

[0017] Preferably, the wall of the protective space away from the air intake space is provided with a ventilation louver. The ventilation louver is provided with a sealing cover on one side inside the protective space. In some special cases, when more exhaust or air intake channels are needed, the sealing cover can be removed to improve the flexibility of the use of the exhaust silencer cover.

[0018] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0019] The exhaust noise reduction shield provided by this utility model forms a tortuous or meandering air intake channel between the protective space and the air intake space through the sound insulation plate. Without affecting the air intake, it can block and absorb most of the noise emitted by the engine and reduce the external transmission of noise. In addition, the muffler is also added, which can also absorb the noise carried by the engine exhaust gas, further improving the noise reduction effect.

[0020] The exhaust end of the exhaust pipe is designed to be high up to prevent it from being flooded by water during rain and causing engine damage.

[0021] The section where the intake pipe and exhaust pipe connect to the muffler is a vertical pipe, which provides support for the installation of the sound insulation panel, thereby improving the installation firmness of the sound insulation panel and simplifying the mechanism.

[0022] The intake end of the intake pipe is connected to the intake connector through a corrugated pipe, which has high flexibility and can adapt to the exhaust ports of various engines.

[0023] The protective space has a temporary closed ventilation louver on the wall away from the air intake space, which can improve the flexibility of the use of the exhaust silencer cover. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0025] in:

[0026] Figure 1 Axial view of an exhaust silencer cover Figure 1 ;

[0027] Figure 2 Axial view of an exhaust silencer cover Figure 2 ;

[0028] Figure 3 Axial view of an exhaust silencer cover Figure 3 ;

[0029] Figure 4 An explosion of a ventilation and soundproof enclosure Figure 1 ;

[0030] Figure 5 An explosion of a ventilation and soundproof enclosure Figure 2 ;

[0031] Figure 6 This is a top view of an exhaust silencing cover; (top cover hidden).

[0032] Figures 1 to 6 The markings are as follows: main body of the protective cover 1, protective space 11, air intake space 12, air intake louver 13, ventilation louver 14, sealing cover 15, inspection door 16, transparent observation window 17, clearance opening 18, sound insulation board 2, middle board 21, side boards 22, exhaust silencer assembly 3, air intake pipe 31, corrugated pipe 311, silencer 32, exhaust pipe 33. Detailed Implementation

[0033] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0034] Please see Figures 1 to 6 An exhaust noise-reducing cover includes a cover body 1, a sound insulation panel 2, and an exhaust noise-reducing assembly 3. Specifically,

[0035] The main body 1 of the protective cover is provided with a protective space 11 and an air intake space 12, which are used to install the engine and intake air respectively. The protective space 11 and the air intake space 12 are separated by a sound insulation plate 2, which can reduce the engine noise transmitted from the air intake of the exhaust silencer cover.

[0036] At least two sound insulation panels 2 are installed alternately and at intervals, forming a tortuous or meandering air intake channel between the protective space 11 and the air intake space 12, thereby blocking and absorbing most of the noise and reducing the transmission of engine noise. Preferably, the sound insulation panel 2 includes sound-absorbing cotton and a mounting frame, and the sound-absorbing cotton is installed inside the protective cover body 1 through the mounting frame.

[0037] The wall of the protective cover body 1 opposite the sound insulation panel 2, which is the air intake space 12, is provided with air intake louvers 13. In other embodiments, the wall of the protective space 11 away from the air intake space 12 is provided with ventilation louvers 14. The ventilation louvers 14 are provided with a sealing cover 15 on one side inside the protective space 11. In some special cases, when more exhaust or air intake channels are needed, the sealing cover 15 can be removed to improve the flexibility of the exhaust silencing cover.

[0038] In one embodiment, the main body 1 of the protective cover is provided with inspection doors 16, at least two of which are respectively arranged on both sides of the protective space 11 to facilitate maintenance work. In addition, the inspection doors 16 are also provided with transparent observation windows 17, through which maintenance personnel can directly view the engine status.

[0039] The exhaust muffler assembly 3 includes an intake pipe 31, a muffler 32, and an exhaust pipe 33 connected in sequence.

[0040] The muffler 32 is installed inside the protective cover body 1. In one embodiment, the muffler 32 is a seated muffler 32, and is installed close to the position between the protective space 11 and the air intake space 12. The section of the air intake pipe 31 and the exhaust pipe 33 connected to the muffler 32 is a vertical pipe. The vertical pipe provides support for the installation of the sound insulation plate 2, thereby improving the installation firmness of the sound insulation plate 2 and simplifying the mechanism.

[0041] Furthermore, based on the above embodiments, the sound insulation panel 2 includes a middle panel 21 and two side panels 22. The middle panel 21 is disposed between the muffler 32 and the protective space 11, and its two sides are spaced apart from the side walls of the protective cover body 1. The two side panels are respectively installed on the side walls of the protective body on both sides of the middle panel 21, and their other sides abut against the two vertical pipes. The two side panels are located between the middle panel 21 and the air intake space 12, and are spaced apart from the middle panel 21, thereby forming two L-shaped air intake channels, which not only have sufficient air intake, but also have a high sound insulation effect.

[0042] The intake end of the intake pipe 31 extends into the protective space 11. Preferably, the intake end of the intake pipe 31 is connected to the intake connector via a corrugated pipe 311, thus providing the intake connector with high flexibility to adapt to the exhaust ports of various engines. The exhaust end of the exhaust pipe 33 extends to the clearance opening 18 reserved on the periphery of the protective cover body 1 and extends to the outside of the protective cover body 1, thereby discharging engine exhaust gas outside the protective cover. Preferably, the clearance opening 18 is located at the upper part of the protective cover body 1, thereby increasing the height of the engine exhaust port and preventing it from being flooded by water during rain.

[0043] The exhaust noise reduction shield provided by this utility model forms a tortuous or meandering air intake channel between the protective space 11 and the air intake space 12 through the sound insulation plate 2. Without affecting the air intake, it can block and absorb most of the noise emitted by the engine and reduce the external transmission of noise. In addition, the muffler 32 is also added, which can also absorb the noise carried by the engine exhaust gas, further improving the noise reduction effect.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A ventilation silencer cover, characterized in that, Includes the main body of the protective cover, sound insulation panels, and exhaust muffler components; The main body of the protective cover is provided with a protective space and an air intake space, which are separated by a sound insulation panel; The sound insulation panels are at least two pieces, installed in an alternating and spaced manner, forming a tortuous or meandering air intake channel between the protective space and the air intake space; the main wall of the protective cover opposite the sound insulation panels in the air intake space is provided with air intake louvers. The exhaust muffler assembly includes an intake pipe, a muffler, and an exhaust pipe connected in sequence. The muffler is installed inside the protective cover body. The intake end of the intake pipe extends into the protective space, while the exhaust end of the exhaust pipe extends to the clearance opening reserved on the peripheral wall of the protective cover body and extends to the outside of the protective cover body.

2. The exhaust noise-reducing cover according to claim 1, characterized in that, The clearance opening is located on the upper part of the protective cover body.

3. The exhaust noise-absorbing cover according to claim 1, characterized in that, The silencer is a seated silencer.

4. The exhaust noise-reducing cover according to claim 3, characterized in that, The seated muffler is installed near the space between the protective space and the air intake space. The section of the air intake pipe and the exhaust pipe that connects to the muffler is a vertical pipe, which provides support for the installation of the sound insulation panel.

5. The exhaust noise-absorbing cover according to claim 4, characterized in that, The sound insulation panel includes a middle panel and two side panels. The middle panel is disposed between the muffler and the protective space, and its two sides are spaced apart from the side walls of the main body of the protective cover. The two side panels are respectively installed on the side walls of the protective body on both sides of the middle panel, and their other sides abut against the two vertical pipes. The two side panels are located between the middle panel and the air intake space, and are spaced apart from the middle panel.

6. The exhaust noise-absorbing cover according to claim 1, characterized in that, The sound insulation panel includes sound-absorbing cotton and a mounting frame, and the sound-absorbing cotton is installed inside the protective cover body through the mounting frame.

7. The exhaust noise-absorbing cover according to claim 1, characterized in that, The air intake end of the air intake pipe is connected to the air intake connector via a corrugated pipe.

8. The exhaust noise-absorbing cover according to claim 1, characterized in that, The main body of the protective cover is provided with inspection doors, at least two of which are respectively located on both sides of the protected space.

9. The exhaust noise-absorbing cover according to claim 8, characterized in that, The inspection door is equipped with a transparent observation window.

10. The exhaust silencing cover according to claim 1, characterized in that, The protective space has ventilation louvers on the wall away from the air intake space, and the ventilation louvers have a sealing cover on one side inside the protective space.

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