Efficient mute oilless air compressor

Abstract

The utility model discloses an efficient mute oilless air compressor, which relates to the technical field of oilless air compressors and comprises a main body, an air inlet part is arranged above the main body, a sound insulation shell is mounted outside the air inlet part, a first sound insulation noise reduction part is mounted at the air inlet end of the air inlet part, and a second sound insulation noise reduction part is mounted at the air outlet end of the air inlet part. A second sound insulation and noise reduction part is installed at the front end of the first sound insulation and noise reduction part, the end of the second sound insulation and noise reduction part extends to the outside of the sound insulation shell, the first sound insulation and noise reduction part comprises an assembly pipe installed in front of the air inlet end, an outer assembly ring is installed in the assembly pipe, and an inner assembly ring is installed in the outer assembly ring. And a plurality of brackets are mounted between the outer assembly ring and the inner assembly ring. The oil-free air compressor solves the problem that when an existing oil-free air compressor is used, sound insulation can be conducted only through a foam sound insulation layer additionally arranged above the oil-free air compressor, noise generated in the air inlet process cannot be reduced, and consequently large noise still exists in the whole operation process.

Description

Technical Field

[0001] This utility model relates to the field of oil-free air compressor technology, specifically a high-efficiency, quiet, oil-free air compressor. Background Technology

[0002] An oil-free air compressor, also known as an oil-free air compressor, is an air compressor that does not use lubricating oil during the compression process. Its core characteristic is that no lubricating oil is produced during air compression, ensuring the purity of the compressed air. Oil-free air compressors are widely used in applications with high air quality requirements, such as the food, pharmaceutical, electronics, and chemical industries.

[0003] For example, announcement number CN211422848U, entitled "A Silent Oil-Free Air Compressor for New Energy Vehicles," includes an air pump, a second connecting block, and pulleys. A first connecting block is mounted above the air pump, and a noise-reducing box is positioned above the first connecting block. A foam sound-insulating layer is provided inside the noise-reducing box, and motor slots are installed at the bottom of the interior of the noise-reducing box. A rotary motor is positioned above each motor slot, and a maintenance cover is installed above the rotary motor. A first rotating rod is installed to the right of the maintenance cover. Heat dissipation covers are provided on the front and rear outer walls of the air pump, and a second rotating rod is installed above each heat dissipation cover. A handle is located on the left side of the noise-reducing box, and the second connecting block is installed below the air pump. By using a foam sound-insulating layer, the noise generated during the operation of the device can be soundproofed, isolating the noise produced inside the device.

[0004] The existing oil-free air compressors mentioned above can only provide sound insulation through the foam sound insulation layer added on top, which cannot reduce the noise generated during the air intake process, resulting in a relatively large noise level during the overall operation. Therefore, they do not meet the current needs, and a high-efficiency, quiet oil-free air compressor is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency, quiet, oil-free air compressor to solve the problem mentioned in the background art that existing oil-free air compressors can only achieve sound insulation through the foam sound insulation layer added on top, and cannot reduce the noise generated during the air intake process, resulting in a relatively large noise level during the overall operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency, quiet, oil-free air compressor, comprising: a main body, an air inlet component disposed above the main body, a sound insulation shell installed outside the air inlet component, a first sound insulation and noise reduction component installed at the air inlet end of the air inlet component, a second sound insulation and noise reduction component installed at the front end of the first sound insulation and noise reduction component, and the end of the second sound insulation and noise reduction component extending to the outside of the sound insulation shell.

[0007] Preferably, the first sound insulation and noise reduction component includes an assembly pipe installed in front of the air intake end, an outer assembly ring is installed inside the assembly pipe, an inner assembly ring is installed inside the outer assembly ring, and a plurality of brackets are installed between the outer assembly ring and the inner assembly ring.

[0008] Preferably, an air intake channel is provided between adjacent brackets, and several arc-shaped sound insulation cottons are provided on the inner wall of the air intake channel and the inner assembly ring.

[0009] Preferably, the second sound insulation and noise reduction component includes a noise reduction cylinder, the outer wall of which is provided with a plurality of annularly spaced dispersing channels, and the inner wall of the dispersing channels is adhered with sound insulation felt.

[0010] Preferably, an air intake shroud is installed on the outside of the noise reduction cylinder, and multiple air intake openings are distributed in a ring at intervals on the outer wall of the air intake shroud.

[0011] Preferably, the soundproof housing includes a fixed soundproof panel and a detachable soundproof panel. The fixed soundproof panel is fixedly installed on the bottom platform of the air intake component, and both the detachable and fixed soundproof panels have a U-shaped structure.

[0012] Preferably, both the fixed and removable sound insulation panels are provided with heat dissipation holes on the top, a sound insulation pad is installed above the heat dissipation holes, a pull-out and sliding baffle is installed above the sound insulation pad, and a handle is installed at the end of the baffle.

[0013] Preferably, the fixed sound insulation panel has multiple slots on its mating end, and the detachable sound insulation panel has multiple blocks installed on its mating end, with the blocks being inserted and removed from the slots.

[0014] Preferably, both the fixed sound insulation panel and the detachable sound insulation panel have end plates that are detachably installed at their front and rear ends by bolts. The outer wall of the end plate has through holes for the extension of the second sound insulation and noise reduction component, and the outer wall of the end plate has wire holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) In this utility model, by setting the first sound insulation and noise reduction component and the second sound insulation and noise reduction component, the noise generated by the intake component during air intake can be weakened. The gas is first drawn into the second sound insulation and noise reduction component, and the noise is diverted to each dispersion channel through the internal noise reduction cylinder. Then, the noise is reduced by the sound insulation felt in the dispersion channel. After exiting the dispersion channel, the gas and sound enter the assembly tube. The internal part is provided with an intake cavity composed of an outer assembly ring, an inner assembly ring and several supports, which weakens the noise again. The intake cavity is provided with sound insulation cotton. After the noise enters the cavity, it is weakened and reduced by the sound insulation cotton, thereby achieving the noise reduction and quieting effect during the air intake process. The setting of multiple different noise reduction components can effectively improve the noise reduction efficiency and effect, and solve the problem that the existing oil-free air compressor can only be soundproofed by the foam sound insulation layer added above, and cannot reduce the noise generated during the air intake process, resulting in a large noise in the overall operation process.

[0017] (2) In this utility model, a soundproof shell is formed by a fixed soundproof plate and a detachable soundproof plate to protect the air intake component inside. At the same time, the noise reduction performance of the soundproof plate improves the noise reduction effect at the air intake component. The shell is provided with heat dissipation holes for heat dissipation. When not in use, the baffle is inserted above the heat dissipation holes to block and seal them. When in use, the baffle is pulled outward by the handle. The area of ​​the heat dissipation hole is adjusted according to the length of the pull. A sound insulation pad is installed at the heat dissipation hole. The sound insulation pad further reduces the noise emitted from this point, thereby enhancing the overall noise reduction effect.

[0018] (3) In this utility model, the fixed sound insulation board is fixed on the base platform, and the detachable sound insulation board can be engaged with the slot of the fixed sound insulation board by the card block, so that the two are combined together. After the combination, end plates are added to the front and rear ends. The end plates are fixed to the ends of the two sound insulation boards by bolts, which is used to further combine the two sound insulation boards together. The whole assembly is easy to disassemble and assemble, and it is convenient to inspect and replace the internal parts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the air intake component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first sound insulation and noise reduction component of this utility model;

[0022] Figure 4 This is a schematic diagram of the noise reduction cylinder structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the air intake shroud structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the fixed sound insulation panel structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the detachable sound insulation panel structure of this utility model;

[0026] In the diagram: 1. Main body; 2. Air intake component; 3. Sound insulation shell; 301. Fixed sound insulation panel; 302. Detachable sound insulation panel; 303. Sound insulation pad; 304. Heat dissipation hole; 305. Baffle; 306. Handle; 307. Slot; 308. Block; 309. End plate; 310. Wiring hole; 4. First sound insulation and noise reduction component; 401. Assembly tube; 402. Outer assembly ring; 403. Inner assembly ring; 404. Air intake cavity; 405. Sound insulation cotton; 406. Bracket; 5. Second sound insulation and noise reduction component; 501. Air intake hood; 502. Air intake mesh; 503. Noise reduction cylinder; 504. Dispersion channel; 505. Sound insulation felt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides an embodiment of a high-efficiency, quiet, oil-free air compressor, comprising: a main body 1, with an air inlet 2 disposed above the main body 1. The air inlet 2 is a conventional component of the air compressor and will not be described in detail here. A soundproof housing 3 is installed outside the air inlet 2. A first soundproofing and noise reduction component 4 is installed at the air inlet end of the air inlet 2. A second soundproofing and noise reduction component 5 is installed at the front end of the first soundproofing and noise reduction component 4, and the end of the second soundproofing and noise reduction component 5 extends to the outside of the soundproof housing 3. The first soundproofing and noise reduction component 4 includes an assembly pipe 401 installed in front of the air inlet end. An outer assembly ring 402 is installed inside the assembly pipe 401, and an inner assembly ring 403 is installed inside the outer assembly ring 402. Several brackets 406 are installed between the outer assembly ring 402 and the inner assembly ring 403. An air intake channel 404 is provided between adjacent brackets 406. Several arc-shaped sound insulation cotton 405s are provided on the inner walls of the air intake channel 404 and the inner mounting ring 403. The second sound insulation and noise reduction component 5 includes a noise reduction cylinder 503. Several annularly spaced dispersing channels 504 are provided on the outer wall of the noise reduction cylinder 503. Sound insulation felt 505 is adhered to the inner wall of the dispersing channels 504. An air intake hood 501 is installed on the outside of the noise reduction cylinder 503. Multiple air intake mesh ports 502 are distributed annularly on the outer wall of the air intake hood 501.

[0029] By setting the first sound insulation and noise reduction component 4 and the second sound insulation and noise reduction component 5, the noise generated by the intake component 2 during air intake can be weakened. The gas is first drawn into the second sound insulation and noise reduction component 5, and the noise is diverted to each dispersion channel 504 through the internal noise reduction cylinder 503. Then, the noise is reduced by the sound insulation felt 505 in the dispersion channel 504. After exiting the dispersion channel 504, the gas and sound enter the assembly tube 401. The assembly tube 401 is equipped with an intake cavity 404 composed of an outer assembly ring 402, an inner assembly ring 403 and several supports 406, which further weakens the noise. The intake cavity 404 is equipped with sound insulation cotton 405. After the noise enters the cavity, it is weakened by the sound insulation cotton 405, thereby achieving a noise reduction and quieting effect during the air intake process. The setting of multiple different noise reduction components can effectively improve the noise reduction efficiency and effect.

[0030] The air intake shroud 501 is located on the outside to facilitate air intake operations. The air intake mesh 502 is designed to filter air during the intake process to prevent impurities from entering the interior. The air intake mesh 502 can be replaced with different sizes and specifications of holes according to actual needs.

[0031] Please see Figure 1 , Figure 6 , Figure 7 The soundproof housing 3 includes a fixed soundproof panel 301 and a removable soundproof panel 302. The fixed soundproof panel 301 is fixedly installed on the base of the air intake 2. Both the removable soundproof panel 302 and the fixed soundproof panel 301 have a U-shaped structure. Both the fixed soundproof panel 301 and the removable soundproof panel 302 have heat dissipation holes 304 on their tops. A soundproofing pad 303 is installed above the heat dissipation holes 304, and a pull-out sliding baffle 305 is installed above the soundproofing pad 303. A handle 306 is installed at the end of the baffle 305. The fixed soundproof panel 301 and the removable soundproof panel 302 together form a soundproof enclosure. The soundproof housing 3 protects the air intake 2 inside. At the same time, the noise reduction performance of the soundproof panel improves the noise reduction effect at the air intake 2. The housing is provided with heat dissipation holes 304 for heat dissipation. When not in use, the baffle 305 is inserted above the heat dissipation holes 304 to block and seal them. When in use, the baffle 305 is pulled outward by the handle 306. The area of ​​the heat dissipation holes 304 is adjusted according to the length of the pull. A sound insulation pad 303 is installed at the heat dissipation holes 304. The sound insulation pad 303 further reduces the noise emitted from this point, thereby enhancing the overall noise reduction effect.

[0032] In addition, the fixed sound insulation panel 301 has multiple slots 307 on its mating end, and the detachable sound insulation panel 302 has multiple clips 308 on its mating end. The clips 308 and the slots 307 are plugged and pulled together. Both the front and rear ends of the fixed sound insulation panel 301 and the detachable sound insulation panel 302 are detachably installed with end plates 309 by bolts. The outer wall of the end plate 309 has through holes for the extension of the second sound insulation and noise reduction component 5, and the outer wall of the end plate 309 is provided with wire holes 310. The fixed sound insulation panel 301 is fixed. Fixed on the base platform, the detachable sound insulation panel 302 can be engaged with the slot 307 of the fixed sound insulation panel 301 by the locking block 308, so that the two are combined together. After the combination, end plates 309 are added to the front and rear ends. The end plates 309 are fixed to the ends of the two sound insulation panels by bolts, which is used to further combine the two sound insulation panels together. The end plates 309 are also provided with through holes for the extension of the second sound insulation and noise reduction component 5 and wire holes 310, so as to facilitate the normal air intake and wire connection between the internal air intake component 2 and the main body 1.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency, quiet, oil-free air compressor, comprising a main body (1), wherein an air inlet (2) is disposed above the main body (1), characterized in that: The air intake component (2) is equipped with a sound insulation shell (3) on its exterior. A first sound insulation and noise reduction component (4) is installed at the air intake end of the air intake component (2). A second sound insulation and noise reduction component (5) is installed at the front end of the first sound insulation and noise reduction component (4). The end of the second sound insulation and noise reduction component (5) extends to the exterior of the sound insulation shell (3).

2. The high-efficiency, quiet, oil-free air compressor according to claim 1, characterized in that: The first sound insulation and noise reduction component (4) includes an assembly pipe (401) installed in front of the air intake end. An outer assembly ring (402) is installed inside the assembly pipe (401), and an inner assembly ring (403) is installed inside the outer assembly ring (402). Several brackets (406) are installed between the outer assembly ring (402) and the inner assembly ring (403).

3. The high-efficiency, quiet, oil-free air compressor according to claim 2, characterized in that: An air intake channel (404) is provided between adjacent brackets (406), and several arc-shaped sound insulation cotton (405) are provided on the inner walls of the air intake channel (404) and the inner assembly ring (403).

4. The high-efficiency, quiet, oil-free air compressor according to claim 1, characterized in that: The second sound insulation and noise reduction component (5) includes a noise reduction cylinder (503), and a plurality of annularly spaced dispersing channels (504) are provided on the outer wall of the noise reduction cylinder (503), and a sound insulation felt (505) is adhered to the inner wall of the dispersing channel (504).

5. A high-efficiency, quiet, oil-free air compressor according to claim 4, characterized in that: The noise reduction cylinder (503) is equipped with an air intake hood (501) on its exterior, and the outer wall of the air intake hood (501) has multiple air intake openings (502) distributed in a ring at intervals.

6. The high-efficiency, quiet, oil-free air compressor according to claim 1, characterized in that: The soundproof housing (3) includes a fixed soundproof panel (301) and a detachable soundproof panel (302). The fixed soundproof panel (301) is fixedly installed on the bottom platform of the air intake component (2). Both the detachable soundproof panel (302) and the fixed soundproof panel (301) are U-shaped structures.

7. A high-efficiency, quiet, oil-free air compressor according to claim 6, characterized in that: Both the fixed sound insulation panel (301) and the detachable sound insulation panel (302) are provided with heat dissipation holes (304) on the top. A sound insulation pad (303) is installed above the heat dissipation holes (304). A pull-out sliding baffle (305) is installed above the sound insulation pad (303). A handle (306) is installed at the end of the baffle (305).

8. A high-efficiency, quiet, oil-free air compressor according to claim 7, characterized in that: The fixed sound insulation panel (301) has multiple slots (307) on its mating end, and the detachable sound insulation panel (302) has multiple blocks (308) installed on its mating end. The blocks (308) are inserted into and removed from the slots (307).

9. A high-efficiency, quiet, oil-free air compressor according to claim 8, characterized in that: Both the fixed sound insulation panel (301) and the detachable sound insulation panel (302) are equipped with end plates (309) that can be detached by bolts at both ends. The outer wall of the end plate (309) is provided with through holes for the extension of the second sound insulation and noise reduction component (5), and the outer wall of the end plate (309) is provided with wire holes (310).

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