Noise reduction device for air compressor

Abstract

The utility model discloses a noise reduction device of an air compressor, which belongs to the technical field of noise reduction of air compressors and comprises a noise reduction part and a noise reduction component. The noise reduction piece comprises a noise reduction pipe, an air inlet pipe and an air outlet pipe. The air inlet pipe is fixedly arranged on one side of the noise reduction pipe and communicates with the noise reduction pipe. The air outlet pipe is fixedly arranged on the other side of the noise reduction pipe and communicates with the noise reduction pipe. The noise reduction assembly is arranged in the noise reduction pipe; the noise reduction assembly comprises a fixing ring, a sound absorption plate and a noise reduction groove. The multiple fixing rings are fixedly arranged in the noise reduction pipe in a linear array mode. The sound absorption plate is fixedly arranged on the side, close to the air inlet pipe, of the fixing ring; the noise reduction device for the air compressor has the advantages that the noise reduction device is simple and reasonable in structural layout, multiple noise reduction of the air compressor can be realized, and the noise reduction effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compressor noise reduction, in particular to an air compressor noise reduction device. Background Art

[0002] An air compressor is the main body of an air source device. It is a device that converts the mechanical energy of an electric motor into gas pressure energy. It is a device that generates air pressure for compressed air. It is mainly driven directly by an electric motor to rotate the crankshaft or eccentric device, drive the connecting rod to make the piston reciprocate, and cause the cylinder volume to change, thereby performing the repetitive work of suction, compression, and exhaust.

[0003] During operation, air compressors have low stability and generate a lot of noise when completing the repetitive task of air suction. In order not to affect the working environment of the staff, they need to be subjected to noise reduction treatment. However, in the existing technology, most of the noise reduction methods for the air compressor suction port only achieve noise reduction through the properties of the material of the air compressor suction pipe itself, which has a poor noise reduction effect, thereby affecting the use effect of the air compressor. Utility Model Content

[0004] The purpose of the utility model is to provide an air compressor noise reduction device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a noise reduction device for an air compressor, comprising a noise reduction part and a noise reduction assembly; wherein, the noise reduction part comprises a noise reduction pipe, an air inlet pipe and an air outlet pipe; the air inlet pipe is fixed on one side of the noise reduction pipe and is connected to the noise reduction pipe; the air outlet pipe is fixed on the other side of the noise reduction pipe and is connected to the noise reduction pipe; the noise reduction assembly is arranged in the noise reduction pipe; wherein, the noise reduction assembly comprises a fixing ring, a sound absorbing plate and a noise reduction groove; a plurality of the fixing rings are fixed in a linear array in the noise reduction pipe; the sound absorbing plate is fixed on the side of the fixing ring close to the air inlet pipe; a noise reduction groove is provided on the side of the fixing ring close to the air inlet pipe.

[0006] As a preferred embodiment, the noise reduction groove is a truncated cone structure, and the size of the noise reduction groove close to the air intake pipe is larger than the size of the noise reduction groove away from the air intake pipe.

[0007] As a preferred embodiment, it further comprises a sound folding component; the sound folding component is arranged on the fixing ring.

[0008] As a preferred embodiment, the sound folding assembly includes a fixed plate and a sound folding plate; several of the fixed plates are fixed in a circular array on the side of the fixed ring close to the air outlet pipe; the sound folding plate is fixed on the opposite surfaces of several of the fixed plates.

[0009] As a preferred embodiment, the fixing plates are in an L-shaped inclined structure, and the distance between several fixing plates close to one end of the fixing ring is greater than the distance between several fixing plates away from one end of the fixing ring.

[0010] As a preferred embodiment, the cross section of the fixing plate is an arc-shaped structure.

[0011] As a preferred embodiment, the cross section of the sound deflection plate is a sawtooth structure.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are:

[0013] The air compressor noise reduction device is provided with a noise reduction component. When in use, first, the outlet pipe is connected to the air suction port of the air compressor (the connection method can be a threaded connection). Then, air is allowed to enter the noise reduction pipe from the air intake pipe through the air compressor. The sound-absorbing panel will absorb and reduce noise at multiple positions and angles to achieve initial noise reduction. Then, the noise reduction groove will preliminarily refract the noise sound waves, making the noise sound waves gradually weakened, thereby achieving further noise reduction. The utility model has a simple and reasonable structural layout, can achieve multiple noise reduction of the air compressor, and has a good noise reduction effect.

[0014] The air compressor noise reduction device is provided with a fixed plate and a sound folding plate. The fixed plate is provided with an L-shaped inclined arc surface structure, and the cross section of the sound folding plate is provided with a sawtooth structure. The noise sound waves refracted by the noise reduction groove will be refracted again by the sound folding plate, so that the sound folding plate can perform multiple refractions on the noise sound waves, further realizing noise reduction and greatly improving the noise reduction effect. Then, the noise-reduced air will enter the air compressor from the outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a partial structural sectional view of the present invention;

[0019] Figure 4 For the utility model Figure 2Enlarged schematic diagram of point A in the middle.

[0020] Description of reference numerals:

[0021] In the picture:

[0022] 1. Noise reduction parts; 2. Noise reduction components; 3. Sound folding components;

[0023] 101. Noise reduction pipe; 102. Air inlet pipe; 103. Air outlet pipe;

[0024] 201, fixing ring; 202, sound absorbing panel; 203, noise reduction groove;

[0025] 301. Fixed board; 302. Sound folding board. DETAILED DESCRIPTION

[0026] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0027] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0028] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0029] See also Figures 1 to 4 As shown, this embodiment includes a noise reduction component 1 and a noise reduction assembly 2; wherein, the noise reduction component 1 includes a noise reduction pipe 101, an air inlet pipe 102 and an air outlet pipe 103; the air inlet pipe 102 is fixed on one side of the noise reduction pipe 101 and is connected to the noise reduction pipe 101; the air outlet pipe 103 is fixed on the other side of the noise reduction pipe 101 and is connected to the noise reduction pipe 101; the noise reduction assembly 2 is arranged in the noise reduction pipe 101; wherein, the noise reduction assembly 2 includes a fixing ring 201, a sound absorbing plate 202 and a noise reduction groove 203; three fixing rings 201 are fixed in a linear array in the noise reduction pipe 101; the sound absorbing plate 202 is fixed on the side of the fixing ring 201 close to the air inlet pipe 102; and a noise reduction groove 203 is provided on the side of the fixing ring 201 close to the air inlet pipe 102.

[0030] The present invention is provided with a noise reduction component 2. When in use, first, the outlet pipe 103 is connected to the air suction port of the air compressor (the connection method can be a threaded connection). Then, the air is allowed to enter the noise reduction pipe 101 from the air inlet pipe 102 through the air compressor. The sound-absorbing plate 202 will absorb and reduce the noise at multiple positions and angles to achieve preliminary noise reduction. Then, the noise reduction groove 203 will preliminarily refract the noise sound waves, so that the noise sound waves gradually weaken, thereby achieving further noise reduction. The structural layout of the present invention is simple and reasonable, and can achieve multiple noise reduction of the air compressor with good noise reduction effect.

[0031] As a preferred embodiment, the noise reduction groove 203 is a truncated cone structure, and the size of the side of the noise reduction groove 203 close to the air intake pipe 102 is larger than the size of the side of the noise reduction groove 203 away from the air intake pipe 102, so that the noise sound waves can be refracted in the noise reduction groove 203.

[0032] As a preferred embodiment, it also includes a sound folding component 3; the sound folding component 3 is arranged on the fixed ring 201; wherein, the sound folding component 3 includes a fixed plate 301 and a sound folding plate 302; the three fixed plates 301 are fixed in a circular array on the side of the fixed ring 201 close to the air outlet pipe 103; the sound folding plate 302 is fixed on the opposite surfaces of the three fixed plates 301; wherein, the fixed plate 301 is an L-shaped inclined structure, and the distance between the three fixed plates 301 close to one end of the fixed ring 201 is greater than the distance between the three fixed plates 301 away from one end of the fixed ring 201; wherein, the cross section of the fixed plate 301 is an arc structure; wherein, the cross section of the sound folding plate 302 is a sawtooth structure.

[0033] The utility model sets a fixed plate 301 and a sound folding plate 302, sets the fixed plate 301 into an L-shaped inclined arc surface structure, and sets the cross section of the sound folding plate 302 into a sawtooth structure, so that the noise sound waves refracted by the noise reduction groove 203 will be refracted again by the sound folding plate 302, so that the sound folding plate 302 can perform multiple refractions on the noise sound waves, further realizing noise reduction and greatly improving the noise reduction effect. Then, the noise-reduced air will enter the air compressor from the outlet pipe 103.

[0034] How it works

[0035] When using the air compressor noise reduction device, first, the air outlet pipe 103 is connected to the air intake of the air compressor (the connection method can be a threaded connection), and then the air is allowed to enter the noise reduction pipe 101 from the air inlet pipe 102 through the air compressor. The sound-absorbing plate 202 will absorb and reduce the noise at multiple positions and angles to achieve initial noise reduction. Then, the noise reduction groove 203 will initially refract the noise sound waves, causing the noise sound waves to gradually weaken, thereby achieving further noise reduction. Then, the noise sound waves will be refracted again by the sound folding plate 302, so that the sound folding plate 302 can perform multiple refractions on the noise sound waves, further achieving noise reduction, until the noise-reduced air enters the air compressor from the air outlet pipe 103.

[0036] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air compressor noise reduction device, characterized in that: include: Noise reduction components (1); The noise reduction component (1) comprises a noise reduction pipe (101), an air inlet pipe (102) and an air outlet pipe (103); the air inlet pipe (102) is fixedly arranged on one side of the noise reduction pipe (101) and communicated with the noise reduction pipe (101); the air outlet pipe (103) is fixedly arranged on the other side of the noise reduction pipe (101) and communicated with the noise reduction pipe (101); A noise reduction component (2) is arranged in the noise reduction tube (101); The noise reduction component (2) comprises a fixing ring (201), a sound absorbing plate (202) and a noise reduction groove (203); a plurality of the fixing rings (201) are fixed in a linear array in the noise reduction pipe (101); the sound absorbing plate (202) is fixed on a side of the fixing ring (201) close to the air intake pipe (102); and a noise reduction groove (203) is provided on a side of the fixing ring (201) close to the air intake pipe (102).

2. The air compressor noise reduction device according to claim 1, characterized in that: The noise reduction groove (203) has a truncated cone structure, and the size of the side of the noise reduction groove (203) close to the air intake pipe (102) is larger than the size of the side of the noise reduction groove (203) away from the air intake pipe (102).

3. The air compressor noise reduction device according to claim 1, characterized in that: Also includes: The folding sound component (3) is arranged on the fixing ring (201).

4. The air compressor noise reduction device according to claim 3, characterized in that: The folding sound component (3) comprises: A plurality of fixing plates (301) are fixed in an annular array on a side of the fixing ring (201) close to the air outlet pipe (103); The sound folding plate (302) is fixedly arranged on the opposite surfaces of the plurality of fixed plates (301).

5. The air compressor noise reduction device according to claim 4, characterized in that: The fixing plates (301) are in an L-shaped inclined structure, and the distance between one end of the fixing plates (301) close to the fixing ring (201) is greater than the distance between one end of the fixing plates (301) away from the fixing ring (201).

6. The air compressor noise reduction device according to claim 5, characterized in that: The cross section of the fixing plate (301) is an arc-shaped structure.

7. The air compressor noise reduction device according to claim 4, characterized in that: The cross section of the sound folding plate (302) is a sawtooth structure.

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