Low-noise air compressor

Abstract

The utility model discloses a low noise air compressor relates to air compressor technical field, including base and noise reduction subassembly, the bottom four end of base is provided with the rubber mat, and the top of rubber mat is fixed air compressor main part, the noise reduction subassembly is provided the top of base, and the noise reduction subassembly is fixed air compressor main part. The noise reduction assembly comprises a sound insulation shell, a porous sound absorption plate, a draught fan, an exhaust outlet, a sound insulation cover, a flow guide plate and a porous sound absorption pad. According to the low-noise air compressor, through the arrangement of the noise reduction assembly, the exterior of the air compressor body can be shaded through the sound insulation shell, meanwhile, part of energy in noise is consumed through a gap structure in the porous sound absorption plate, noise of the noise is reduced, the circulation of air inside the sound insulation shell and outside the sound insulation shell is accelerated through the draught fan, and the noise reduction effect is improved. And meanwhile, after the noise enters the sound insulation cover, the propagation path of the noise in the sound insulation cover can be prolonged through the flow guide plate, the noise makes full contact with the porous sound absorption pad, and the noise is further weakened.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to a low-noise air compressor. Background Technology

[0002] An air compressor is a device used to compress gas. Air compressors are similar in structure to water pumps. Most air compressors are reciprocating piston type, rotating vane or rotating screw. During the air compression process, the air compressor will generate a lot of noise and vibration, causing noise pollution to the environment.

[0003] For example, utility model publication CN202121274518.6 discloses a low-noise air compressor. This utility model uses a support plate set inside a soundproof enclosure for support, and the support arm at the bottom of the air compressor body is clamped by horizontal springs on both sides. This not only allows the air compressor body to be placed stably, but also, when the air compressor is working, the cooperation between the horizontal springs and the soundproof enclosure can reduce vibration and reduce operating noise. However, some noise may leak out from the large exhaust port, resulting in a relatively average overall noise reduction effect.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a low-noise air compressor. Utility Model Content

[0005] The purpose of this invention is to provide a low-noise air compressor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-noise air compressor, comprising a base and a noise reduction component. Rubber pads are placed at the four ends of the bottom of the base, and the air compressor body is fixed to the top of the rubber pads. The noise reduction component is located on the top of the base and includes a sound-insulating shell, a porous sound-absorbing plate, a fan, an exhaust vent, a soundproof cover, a guide plate, and porous sound-absorbing pads. A porous sound-absorbing plate is fixed to the inner side of the sound-insulating shell, and a fan is fitted and fixed to one side of the sound-insulating shell. An exhaust vent is opened on the other side of the sound-insulating shell, and soundproof covers are fixed to both sides of the sound-insulating shell. A guide plate is placed inside the soundproof cover, and porous sound-absorbing pads are provided on the outer side of the guide plate and the inner side of the soundproof cover.

[0007] Furthermore, the soundproof cover has a right-angled cross-section, and its length is greater than the length of the exhaust vent.

[0008] Furthermore, the width of the guide plate is smaller than the width of the soundproof cover, and the guide plate is equidistantly staggered with respect to the interior of the soundproof cover.

[0009] Furthermore, a sealing assembly is provided on the top of the soundproof shell. The sealing assembly includes a through hole, a fixing plate, and a first sound-absorbing cotton. The top of the soundproof shell has a through hole, and a fixing plate is fixed on the top of the soundproof shell. The first sound-absorbing cotton is provided on one side of the fixing plate.

[0010] Furthermore, the sealing assembly also includes a connecting lug and a screw, with the connecting lug disposed on the top of the soundproof shell and the screw being threaded into the internal part of the connecting lug.

[0011] Furthermore, the sealing assembly also includes a movable clamping plate and a second sound-absorbing cotton. The end of the screw is rotatably connected to the movable clamping plate, and a second sound-absorbing cotton is provided on one side of the movable clamping plate.

[0012] Furthermore, there are two movable clamping plates, and the length of the movable clamping plates is the same as the length of the fixed plate.

[0013] Furthermore, the sealing assembly also includes guide rods, with guide rods fixed at both ends of one side of the movable clamping plate, and the guide rods are slidably connected to the fixed plate.

[0014] This utility model provides a low-noise air compressor, which has the following beneficial effects:

[0015] 1. This utility model, through the setting of noise reduction components, can use a soundproof shell to cover the exterior of the air compressor body. At the same time, the porous sound-absorbing plate consumes some of the energy of the noise and reduces the noise level. Furthermore, the fan accelerates the airflow between the inside and outside of the soundproof shell, avoiding affecting the normal heat dissipation of the air compressor body. When noise enters the soundproof shell, the guide plate can extend the propagation path of the noise inside the soundproof shell, allowing it to fully contact the porous sound-absorbing pad, further weakening the noise and improving the comfort of using the equipment.

[0016] 2. Through the sealing component, the external pipes or wires can be connected to the interface on the air compressor body through the through hole. After connection, the screw can be rotated to move the movable clamping plate towards the fixed plate. At this time, the guide rod will limit and guide the movable clamping plate, so that the second sound-absorbing cotton and the first sound-absorbing cotton can clamp and fit the outside of the pipe, while sealing the through hole. Therefore, during use, some noise can be prevented from leaking directly from the through hole, thereby reducing the noise level. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the overall structure of a low-noise air compressor according to this utility model;

[0018] Figure 2 This is a schematic diagram of the sound insulation shell structure of a low-noise air compressor according to the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the soundproof cover of a low-noise air compressor according to this utility model.

[0020] In the diagram: 1. Base; 2. Rubber pad; 3. Air compressor body; 4. Noise reduction component; 401. Sound insulation shell; 402. Porous sound-absorbing panel; 403. Fan; 404. Exhaust vent; 405. Sound insulation cover; 406. Guide plate; 407. Porous sound-absorbing pad; 5. Sealing component; 501. Through hole; 502. Fixing plate; 503. First sound-absorbing cotton; 504. Connecting ear; 505. Screw; 506. Movable clamp; 507. Second sound-absorbing cotton; 508. Guide rod. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3 As shown, a low-noise air compressor includes a base 1 and a noise reduction component 4. Rubber pads 2 are placed at the four ends of the bottom of the base 1, and the air compressor body 3 is fixed to the top of the rubber pads 2. The noise reduction component 4 is located on the top of the base 1 and includes a soundproof shell 401, a porous sound-absorbing panel 402, a fan 403, an exhaust port 404, a soundproof cover 405, a guide plate 406, and a porous sound-absorbing pad 407. The porous sound-absorbing panel 402 is fixed to the inner side of the soundproof shell 401, and the fan 403 is fitted and fixed to one side of the soundproof shell 401. The soundproof shell 401 shields the exterior of the air compressor body 3, while the porous structure within the porous sound-absorbing panel 402 dissipates some of the noise energy, reducing noise levels. Furthermore, the fan 403 accelerates the airflow between the inside and outside of the soundproof shell 401, preventing interference with the air compressor body 3. For normal heat dissipation, an exhaust vent 404 is provided on the other side of the soundproof shell 401, and soundproof covers 405 are fixed on both sides of the soundproof shell 401. The cross-section of the soundproof cover 405 is right-angled, and the length of the soundproof cover 405 is greater than the length of the exhaust vent 404. The soundproof cover 405 can guide noise. A guide plate 406 is installed inside the soundproof cover 405, and porous sound-absorbing pads 407 are provided on the outer side of the guide plate 406 and the inner side of the soundproof cover 405. The width of the guide plate 406 is smaller than the width of the soundproof cover 405, and the guide plate 406 is equidistantly staggered with respect to the interior of the soundproof cover 405. When noise enters the interior of the soundproof cover 405 through the exhaust vent 404, the guide plate 406 can extend the propagation path of the noise inside the soundproof cover 405, allowing it to fully contact the porous sound-absorbing pads 407 and further reduce the noise.

[0023] like Figure 1 and Figure 2As shown, a sealing assembly 5 is provided on the top of the soundproof shell 401. The sealing assembly 5 includes a through hole 501, a fixing plate 502, and a first sound-absorbing cotton 503. The soundproof shell 401 has a through hole 501 on its top, and the fixing plate 502 is fixed to the top of the soundproof shell 401. The first sound-absorbing cotton 503 is provided on one side of the fixing plate 502. External pipes or wires can be connected to the interface on the air compressor body 3 through the through hole 501. The sealing assembly 5 also includes a connecting ear 504 and a screw 505. The connecting ear 504 is installed on the top of the soundproof shell 401, and the screw 505 is threadedly connected to the inside of the connecting ear 504. The sealing assembly 5 also includes a movable clamping plate 506 and a second sound-absorbing cotton 507. The end of the screw 505... A movable clamping plate 506 is rotatably connected, and a second sound-absorbing cotton 507 is provided on one side of the movable clamping plate 506. There are two movable clamping plates 506, and the length of the movable clamping plate 506 is the same as the length of the fixed plate 502. Rotating the screw 505 causes the movable clamping plate 506 to move towards the fixed plate 502, so that the second sound-absorbing cotton 507 and the first sound-absorbing cotton 503 clamp and fit tightly against the outside of the pipe, thereby sealing the through hole 501 and preventing some noise from leaking directly from the through hole 501. The sealing component 5 also includes a guide rod 508. Guide rods 508 are fixed at both ends on one side of the movable clamping plate 506, and the guide rods 508 are slidably connected to the fixed plate 502. The guide rods 508 limit and guide the movable clamping plate 506.

[0024] In summary, when using this low-noise air compressor, firstly, according to... Figure 1 , Figure 2 and Figure 3 The structure shown first allows external pipes or wires to be connected to the interface on the air compressor body 3 through the through hole 501. Then, rotating the screw 505 moves the movable clamping plate 506 towards the fixed plate 502. At this time, the guide rod 508 limits and guides the movable clamping plate 506, causing the second sound-absorbing cotton 507 and the first sound-absorbing cotton 503 to clamp and adhere to the outside of the pipe, thus sealing the through hole 501. Then, when using the equipment, the sound insulation shell 401 is used to cover the outside of the air compressor body 3, while using multiple... The porous structure within the sound-absorbing panel 402 consumes some of the energy in the noise, reducing its intensity. The rubber pad 2 also cushions the bottom of the base 1. The fan 403 allows air to circulate between the inside and outside of the soundproof housing 401, preventing any impact on the normal heat dissipation of the air compressor body 3. Finally, when noise enters the soundproof enclosure 405 through the exhaust port 404, the guide plate 406 extends the noise's propagation path within the soundproof enclosure 405, ensuring full contact with the porous sound-absorbing pad 407 and further reducing the noise.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A low-noise air compressor, comprising a base (1) and a noise reduction assembly (4), characterized in that, The base (1) has rubber pads (2) installed at its four bottom ends, and the air compressor body (3) is fixed to the top of the rubber pads (2). The noise reduction component (4) is located on the top of the base (1). The noise reduction component (4) includes a sound insulation shell (401), a porous sound-absorbing plate (402), a fan (403), an exhaust port (404), a sound insulation cover (405), a guide plate (406), and a porous sound-absorbing pad (407). The inner side of the sound insulation shell (401) A porous sound-absorbing panel (402) is fixed, and a fan (403) is fitted and fixed on one side of the soundproof shell (401). An exhaust port (404) is opened on the other side of the soundproof shell (401), and a soundproof cover (405) is fixed on both sides of the soundproof shell (401). A guide plate (406) is arranged inside the soundproof cover (405), and porous sound-absorbing pads (407) are provided on the outer side of the guide plate (406) and the inner side of the soundproof cover (405).

2. The low-noise air compressor according to claim 1, characterized in that, The soundproof cover (405) has a right-angled cross section, and the length of the soundproof cover (405) is greater than the length of the exhaust port (404).

3. A low-noise air compressor according to claim 1, characterized in that, The width of the guide plate (406) is smaller than the width of the soundproof cover (405), and the guide plate (406) is equidistantly staggered with respect to the interior of the soundproof cover (405).

4. A low-noise air compressor according to claim 1, characterized in that, The top of the soundproof shell (401) is provided with a sealing component (5). The sealing component (5) includes a through hole (501), a fixing plate (502) and a first sound-absorbing cotton (503). The top of the soundproof shell (401) is provided with a through hole (501), and the top of the soundproof shell (401) is fixed with a fixing plate (502). The first sound-absorbing cotton (503) is provided on one side of the fixing plate (502).

5. A low-noise air compressor according to claim 4, characterized in that, The sealing assembly (5) further includes a connecting ear (504) and a screw (505). The top of the soundproof shell (401) is provided with the connecting ear (504), and the screw (505) is connected to the internal thread of the connecting ear (504).

6. A low-noise air compressor according to claim 5, characterized in that, The sealing assembly (5) further includes a movable clamp (506) and a second sound-absorbing cotton (507). The end of the screw (505) is rotatably connected to the movable clamp (506), and a second sound-absorbing cotton (507) is provided on one side of the movable clamp (506).

7. A low-noise air compressor according to claim 6, characterized in that, There are two movable clamps (506), and the length of the movable clamps (506) is the same as the length of the fixed plate (502).

8. A low-noise air compressor according to claim 6, characterized in that, The sealing assembly (5) also includes a guide rod (508), which is fixed at both ends of one side of the movable clamp (506), and the guide rod (508) is slidably connected to the fixed plate (502).

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