Air compressor unit with noise reduction function

Abstract

The utility model relates to the technical field of air compression equipment, and discloses an air compressor unit with noise reduction, which comprises a unit base, the front surface of the unit base is fixedly connected with a mounting frame, and the front part of the inner side wall of the mounting frame is fixedly connected with a metal plate. The multiple layers of sound insulation materials are used for sound insulation, noise reduction, shock absorption and noise reduction, and noise is processed from multiple directions, so that noise transmission is effectively blocked, transmission of noise to the external environment during operation of the air compressor unit is greatly reduced, noise pollution to the surrounding environment is reduced, and the service life of the air compressor unit is prolonged. A relatively quiet working and living environment is created for operators and surrounding personnel, and meanwhile, the environment-friendly requirement is better met; by opening the lock catch, the metal cover can be conveniently disassembled, and the internal air compressor unit can be quickly exposed, so that the repair and maintenance time is greatly saved, the working efficiency is improved, the downtime of equipment is reduced, the influence on production and use is reduced, and the improvement of the overall working progress is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compression equipment technical field, concretely is a kind of air compressor unit with sound attenuation and noise reduction. BACKGROUND

[0002] Air compressor unit has wide application in numerous industrial fields and daily life, for example, pneumatic tool drive in manufacturing industry, production process gas in factory, pneumatic equipment operation in construction etc. However, there are many problems in the operation process of existing air compressor unit.

[0003] On the one hand, the noise generated when it runs is large, which not only causes serious noise pollution to the surrounding environment, interferes with the normal work and life of operators and surrounding personnel, and also may not meet the increasingly stringent environmental protection requirements, and long-term stay in such high-noise environment will bring adverse effects on people's physical and mental health, such as hearing impairment, increased mental stress, etc.

[0004] On the other hand, the sound insulation cover of the existing air compressor unit with sound attenuation and noise reduction function is usually fixed by multiple screws, and this fixing method has obvious disadvantages in actual use. When the internal air compressor unit needs to be repaired and maintained, the worker must spend a lot of time to disassemble the multiple screws one by one, and the operation process is tedious and time-consuming and laborious, which greatly reduces the efficiency of repair and maintenance work, increases the downtime of the equipment, and thus brings many inconveniences to production and use, affects the overall work progress and economic benefits, therefore, an air compressor unit with sound attenuation and noise reduction is proposed. SUMMARY

[0005] The utility model aims at providing an air compressor unit with sound attenuation and noise reduction to solve the problem of large noise when the air compressor unit runs and the inconvenient disassembly of the sound insulation cover of the existing air compressor unit with sound attenuation and noise reduction, which leads to the difficulty in repairing and maintaining the internal air compressor unit.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A air compressor unit with sound elimination and noise reduction, including unit base, the front surface of unit base is fixedly connected with installation frame, the front of the inner side wall of installation frame is fixedly connected with metal sheet, the rear of the inner side wall of installation frame is installed front sound absorption rock wool and front sound insulation felt in proper order close to metal sheet, the both sides of unit base are connected with U shape frame, the front of the upper surface of U shape frame is welded with sealing frame, the front surface of sealing frame is connected to the rear surface of installation frame, the outer side of the upper surface of U shape frame is fixedly connected with metal cover, the inner side wall of metal cover is installed with rear sound absorption rock wool and rear sound insulation felt in proper order, the middle part of the outer side wall of unit base is equipped with U shape limiting groove, the middle part of the inner side wall of U shape frame is fixedly connected with U shape limiting strip, the outer side wall of U shape limiting strip is connected to the inner side wall of U shape limiting groove, the both sides of metal cover are fixedly connected to the both sides of installation frame through the lock catch.

[0007] As preferred, the upper surface of the unit base is welded with support column on both sides of the front and rear, the outer side wall of the four support columns is slidably connected with damping frame on the upper part, the upper damping spring is sleeved on the outer side wall of the lower part of the support column, the lower surface of the upper damping spring is connected to the upper surface of the unit base close to the outer side of the support column, the upper surface of the upper damping spring is connected to the lower surface of the damping frame close to the outer side of the support column, the outer side wall of the support column is threadedly connected with limiting nut cap close to the upper part of the damping frame, the gas tank is fixedly connected to the upper surface of the damping frame, the lower mounting seat is welded on the outer side wall of the top of the gas tank, the upper mounting seat is fixedly connected to the top of the lower mounting seat through a plurality of screws, the compression mechanism and motor are installed on the front and rear of the upper surface of the upper mounting seat respectively.

[0008] As preferred, the front surface of the gas tank is communicated with the air outlet pipe at the center, the front elastic rubber ring is penetrated through the lower part of the front surface center of the metal sheet, the outer side wall of the air outlet pipe is connected to the inner side wall of the front elastic rubber ring, the air outlet end of the air outlet pipe is installed with the air outlet silencer.

[0009] As preferred, the air inlet pipe is installed on the air inlet end of the compression mechanism, the air inlet silencer is installed on the air inlet end of the air inlet pipe, the rear elastic rubber ring is penetrated through the upper part of the rear surface center of the metal cover, the outer side wall of the air inlet silencer is connected to the inner side wall of the rear elastic rubber ring.

[0010] Preferably, the lower surface of the unit base described above has connecting columns extending through all four corners. A mounting plate is welded to the bottom of the connecting column, and a caster wheel is fixedly connected to the bottom of the mounting plate. A lower buffer spring is fitted on the lower part of the outer side wall of the connecting column. The bottom of the lower buffer spring is attached to the upper surface of the mounting plate near the outer side of the connecting column, and the top of the lower buffer spring is attached to the lower surface of the unit base near the outer side of the connecting column. A limit plate is welded to the top of the connecting column.

[0011] Preferably, a U-shaped sealing groove is provided in the middle of the rear surface of the mounting frame, and a U-shaped sealing strip is fixedly connected to the middle of the front surface of the sealing frame, with the outer side wall of the U-shaped sealing strip fitting against the inner side wall of the U-shaped sealing groove.

[0012] Preferably, shock-absorbing pads are provided on the adjacent sides of the lower mounting base and the upper mounting base described above.

[0013] Preferably, push handles are welded to the top of both sides of the front surface of the mounting frame described above.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] 1. This utility model uses multi-layer sound insulation materials for sound insulation and noise reduction, and treats noise from multiple directions. At the same time, it uses a silencer to reduce noise in the inlet / outlet pipes, thereby effectively blocking the transmission of noise. This greatly reduces the transmission of noise from the air compressor unit to the external environment, reduces noise pollution to the surrounding environment, and creates a relatively quiet working and living environment for operators and people in the vicinity. It is also more in line with environmental protection requirements.

[0016] 2. This utility model allows for easy disassembly of the metal cover by opening the latch and sliding the U-shaped frame along the U-shaped limiting groove, quickly exposing the internal compression mechanism, motor, and other components. Compared to the traditional method of fixing the soundproof cover with multiple screws, this greatly saves maintenance time, improves work efficiency, reduces equipment downtime, and minimizes the impact on production and use, thus helping to improve overall work progress and economic benefits. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model from one perspective;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the mounting frame and U-shaped frame structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 11. Unit base; 12. Mounting frame; 13. Metal plate; 14. Front sound-absorbing rock wool; 15. Front sound insulation felt; 16. U-shaped frame; 17. Sealing frame; 18. Metal cover; 19. Rear sound-absorbing rock wool; 20. Rear sound insulation felt; 21. U-shaped limiting groove; 22. U-shaped limiting strip; 23. Lock; 24. Support column; 25. Vibration damping frame; 26. Upper vibration damping spring; 27. Limiting nut; 28. Gas tank; 29. 30. Lower mounting base; 31. Upper mounting base; 32. Compression mechanism; 33. Motor; 34. Exhaust pipe; 35. Front elastic rubber ring; 36. Exhaust muffler; 37. Intake pipe; 38. Intake muffler; 39. Rear elastic rubber ring; 40. Connecting column; 41. Mounting plate; 42. Casters; 43. Lower buffer spring; 44. Limiting plate; 45. U-shaped sealing groove; 46. U-shaped sealing strip; 47. Shock-absorbing rubber pad; 48. Push handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] In the existing technology, the air compressor unit is noisy when it is running, and the existing soundproof air compressor unit with soundproof cover is not easy to disassemble, which makes the internal air compressor unit difficult to maintain.

[0027] Please seeFigures 1-4 This utility model provides a technical solution: an air compressor unit with noise reduction and sound absorption, including a unit base 11, a mounting frame 12 fixedly connected to the front surface of the unit base 11, a metal plate 13 fixedly connected to the front part of the inner sidewall of the mounting frame 12, a front sound-absorbing rock wool 14 and a front sound-insulating felt 15 sequentially installed on the rear part of the inner sidewall of the mounting frame 12 near the metal plate 13, a U-shaped frame 16 slidably connected to both sides of the unit base 11, a sealing frame 17 welded to the front part of the upper surface of the U-shaped frame 16, the front surface of the sealing frame 17 being fitted to the rear surface of the mounting frame 12, and a fixedly connected outer side of the upper surface of the U-shaped frame 16. The metal cover 18 has a rear sound-absorbing rock wool 19 and a rear sound insulation felt 20 installed sequentially on its inner side wall. A U-shaped limiting groove 21 is opened in the middle of the outer side wall of the unit base 11. A U-shaped limiting strip 22 is fixedly connected to the middle of the inner side wall of the U-shaped frame 16. The outer side wall of the U-shaped limiting strip 22 is slidably connected to the inner side wall of the U-shaped limiting groove 21. The front sides of the metal cover 18 are fixedly connected to the two sides of the mounting frame 12 by the latches 23. The U-shaped limiting strip 22 on the U-shaped frame 16 slides inside the U-shaped limiting groove 21, thereby limiting the U-shaped limiting strip 22 and increasing the stability of the movement of the U-shaped frame 16.

[0028] In one embodiment, specifically: support columns 24 are welded to both the front and rear sides of the upper surface of the unit base 11; shock-absorbing frames 25 are slidably connected to the upper part of the outer side walls of the four support columns 24; upper shock-absorbing springs 26 are sleeved on the lower part of the outer side walls of the support columns 24; the lower surface of the upper shock-absorbing springs 26 is attached to the outer side of the upper surface of the unit base 11 near the support columns 24; the upper surface of the upper shock-absorbing springs 26 is attached to the lower surface of the shock-absorbing frames 25 near the outer side of the support columns 24; a limit nut 27 is threadedly connected to the upper part of the outer side wall of the support columns 24 near the shock-absorbing frames 25; and a gas tank 28 is fixedly connected to the middle of the upper surface of the shock-absorbing frames 25. A lower mounting base 29 is welded to the top of the outer wall of the gas tank 28. An upper mounting base 30 is fixedly connected to the top of the lower mounting base 29 by multiple screws. A compression mechanism 31 and a motor 32 are respectively installed on the front and rear parts of the upper surface of the upper mounting base 30. When the compression mechanism 31 and the motor 32 are running, they generate vibration. When the vibration causes the damping frame 25 to move downward, the upper damping spring 26 is compressed, converting the vibration energy into the elastic potential energy of the spring and storing it. When the vibration weakens, the upper damping spring 26 releases the elastic potential energy, pushing the damping frame 25 back to its original position, thereby absorbing and buffering the vibration, and reducing the noise caused by the vibration.

[0029] In one embodiment, specifically: an exhaust pipe 33 is connected to the center of the front surface of the gas tank 28, a front elastic rubber ring 34 passes through the lower part of the center of the front surface of the metal plate 13, the middle part of the outer side wall of the exhaust pipe 33 is attached to the inner side wall of the front elastic rubber ring 34, and an exhaust silencer 35 is installed at the exhaust end of the exhaust pipe 33. The vibration generated by the exhaust pipe 33 and the exhaust silencer 35 is damped by the front elastic rubber ring 34, thereby reducing the noise generated by the vibration.

[0030] In one embodiment, specifically: an intake pipe 36 is installed at the intake end of the compression mechanism 31, and an intake muffler 37 is installed at the intake end of the intake pipe 36. A rear elastic rubber ring 38 passes through the upper part of the center of the rear surface of the metal cover 18. The outer side wall of the intake muffler 37 is attached to the inner side wall of the rear elastic rubber ring 38. The vibration generated by the intake muffler 37 is damped by the rear elastic rubber ring 38, thereby reducing the noise generated by the vibration.

[0031] In one embodiment, specifically: connecting columns 39 are passed through the four corners of the lower surface of the unit base 11. A mounting plate 40 is welded to the bottom of the connecting column 39. A caster wheel 41 is fixedly connected to the bottom of the mounting plate 40. A lower buffer spring 42 is sleeved on the lower part of the outer wall of the connecting column 39. The bottom of the lower buffer spring 42 is attached to the upper surface of the mounting plate 40 near the outer side of the connecting column 39. The top of the lower buffer spring 42 is attached to the lower surface of the unit base 11 near the outer side of the connecting column 39. A limit plate 43 is welded to the top of the connecting column 39. When the ground is uneven and bumps occur due to the lower buffer spring 42 sleeved on the lower part of the outer wall of the connecting column 39, the lower buffer spring 42 can be compressed or extended according to the bumps, thereby reducing the impact of vibration on the overall structure of the equipment, protecting the internal parts of the equipment from damage, and making the equipment more stable during movement.

[0032] In one embodiment, specifically: a U-shaped sealing groove 44 is provided in the middle of the rear surface of the mounting frame 12, and a U-shaped sealing strip 45 is fixedly connected to the middle of the front surface of the sealing frame 17. The outer side wall of the U-shaped sealing strip 45 is attached to the inner side wall of the U-shaped sealing groove 44. Through the cooperation of the U-shaped sealing strip 45 on the sealing frame 17 and the U-shaped sealing groove 44 on the mounting frame 12, the connection between the mounting frame 12 and the sealing frame 17 is sealed, thereby preventing noise from spreading to the outside through the gap.

[0033] In one embodiment, specifically: a shock-absorbing rubber pad 46 is provided on the adjacent side of the lower mounting base 29 and the upper mounting base 30. When the compression mechanism 31 and the motor 32 vibrate during operation, the shock-absorbing rubber pad 46 between the lower mounting base 29 and the upper mounting base 30 absorbs part of the vibration energy through its own elastic deformation, further reducing the transmission of vibration inside the equipment, protecting the equipment components from damage caused by excessive vibration, and also reducing the noise caused by vibration.

[0034] In one embodiment, specifically: push handles 47 are welded to the top of both sides of the front surface of the mounting frame 12, which facilitates the movement of the entire air compressor unit with noise reduction and silence.

[0035] Working principle or structural principle: Motor 32 drives compression mechanism 31 to work. Air enters compression mechanism 31 through intake pipe 36. Intake silencer 37 performs preliminary noise reduction treatment on the noise generated by intake. Compressed air enters air tank 28 for storage. Air tank 28 outlet pipe 33 sends out compressed air. Outlet silencer 35 further reduces outlet noise. The noise generated by the unit operation spreads in all directions. Front sound insulation felt 15 and rear sound insulation felt 20 block the noise from spreading to the outside. At the same time, front sound-absorbing rock wool 14 between front sound insulation felt 15 and metal plate 13, and rear sound-absorbing rock wool 19 between metal cover 18 and rear sound insulation felt 20 are used to absorb noise. Finally, metal plate 13 and metal cover 18 further block noise. In addition, the mounting frame 12 and sealing frame 17 are sealed by the cooperation of U-shaped sealing strip 45 and U-shaped sealing groove 44 to prevent noise from leaking from the gaps. At the same time, the vibration generated by the equipment operation is transmitted to the shock-absorbing frame 25, upper shock-absorbing spring 26 and shock-absorbing rubber pad 46. Absorbing and buffering vibrations not only protects equipment components but also further reduces noise caused by vibration. By pushing the push handle 47, the universal wheels 41 under the unit base 11 can be used to move the equipment. The lower buffer spring 42 plays a buffering role, reducing the impact of vibration on the equipment during movement. When maintenance of the internal air compressor unit is required, the latch 23 is opened, and the U-shaped frame 16 is slid off along the U-shaped limiting groove 21 to facilitate the removal of the metal cover 18 and expose the internal equipment for maintenance. After the maintenance is completed, the U-shaped limiting strip 22 in the middle of the inner wall of the U-shaped frame 16 is aligned with the U-shaped limiting groove 21 in the middle of the outer wall of the unit base 11. Then, the U-shaped frame 16 is slid inward along the U-shaped limiting groove 21 until the front surface of the sealing frame 17 is tightly fitted with the rear surface of the mounting frame 12. Finally, the latch 23 is used to fix the front parts of both sides of the metal cover 18 to both sides of the mounting frame 12, completing the assembly of the equipment and restoring it to normal operation.

[0036] In summary, this utility model utilizes multi-layered sound insulation materials for sound insulation and noise reduction, and addresses noise from multiple directions. Simultaneously, the exhaust silencer 35 and intake silencer 37 respectively silence the exhaust pipe 33 and intake pipe 36, effectively blocking noise transmission and significantly reducing the spread of noise from the air compressor unit to the external environment. This reduces noise pollution to the surrounding environment, creating a relatively quiet working and living environment for operators and those nearby, while also meeting environmental protection requirements. By opening the latch 23 and sliding the U-shaped frame 16 along the U-shaped limiting groove 21, the metal cover 18 can be easily disassembled, quickly exposing the internal compression mechanism 31, motor 32, and other components. Compared to the traditional method of fixing the soundproof cover with multiple screws, this significantly saves maintenance time, improves work efficiency, reduces equipment downtime, minimizes the impact on production and use, and helps improve overall work progress and economic benefits.

[0037] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. An air compressor unit with sound attenuation and noise reduction, comprising a unit base (11), characterized in that: The front surface of the unit base (11) is fixedly connected with a mounting frame (12), the front of the inner side wall of the mounting frame (12) is fixedly connected with a metal plate (13), the rear of the inner side wall of the mounting frame (12) is sequentially provided with a front sound-absorbing rock wool (14) and a front sound insulation felt (15) close to the metal plate (13), both sides of the unit base (11) are slidably connected with a U-shaped frame (16), the front of the upper surface of the U-shaped frame (16) is welded with a sealing frame (17), the front surface of the sealing frame (17) is connected to the rear surface of the mounting frame (12), the outer side of the upper surface of the U-shaped frame (16) is fixedly connected with a metal cover (18), the inner side wall of the metal cover (18) is sequentially provided with a rear sound-absorbing rock wool (19) and a rear sound insulation felt (20), the middle part of the outer side wall of the unit base (11) is provided with a U-shaped limiting groove (21), the middle part of the inner side wall of the U-shaped frame (16) is fixedly connected with a U-shaped limiting strip (22), the outer side wall of the U-shaped limiting strip (22) is slidably connected to the inner side wall of the U-shaped limiting groove (21), and the front of both sides of the metal cover (18) is fixedly connected to both sides of the mounting frame (12) through a lock buckle (23).

2. The air compressor unit with noise reduction and noise elimination of claim 1, wherein: The front and rear sides of the upper surface of the unit base (11) are welded with support columns (24), the outer side wall of the upper part of the four support columns (24) is slidably connected with a damping frame (25), the outer side wall of the lower part of the support column (24) is sleeved with an upper damping spring (26), the lower surface of the upper damping spring (26) is connected to the upper surface of the unit base (11) close to the outer side of the support column (24), the upper surface of the upper damping spring (26) is connected to the lower surface of the damping frame (25) close to the outer side of the support column (24), the outer side wall of the support column (24) is threadedly connected with a limiting nut (27) close to the upper part of the damping frame (25), the upper surface of the damping frame (25) is fixedly connected with a gas tank (28) in the middle part, the top of the outer side wall of the gas tank (28) is welded with a lower mounting seat (29), the top of the lower mounting seat (29) is fixedly connected with an upper mounting seat (30) through a plurality of screws, and the front and rear parts of the upper surface of the upper mounting seat (30) are respectively provided with a compression mechanism (31) and a motor (32).

3. The air compressor unit with noise reduction and sound attenuation of claim 2, wherein: The front surface of the gas tank (28) is communicated with an air outlet pipe (33) at the center, the front surface of the metal plate (13) is penetrated through a front elastic rubber ring (34) at the lower part of the center, the outer side wall of the air outlet pipe (33) is connected to the inner side wall of the front elastic rubber ring (34) in the middle part, and the air outlet end of the air outlet pipe (33) is provided with an air outlet silencer (35).

4. The air compressor unit with noise reduction and sound attenuation of claim 2, wherein: The air inlet end of the compression mechanism (31) is provided with an air inlet pipe (36), the air inlet end of the air inlet pipe (36) is provided with an air inlet silencer (37), the rear surface of the metal cover (18) is penetrated through a rear elastic rubber ring (38) at the upper part of the center, and the outer side wall of the air inlet silencer (37) is connected to the inner side wall of the rear elastic rubber ring (38).

5. The air compressor unit with sound attenuation and noise reduction of claim 1, wherein: The lower surface of the unit base (11) is penetrated by connecting columns (39), the bottom of the connecting columns (39) is welded with mounting plates (40), the bottom of the mounting plates (40) is fixedly connected with universal wheels (41), the outer side wall of the connecting columns (39) is sleeved with lower buffer springs (42), the bottom of the lower buffer springs (42) is connected to the upper surface of the mounting plate (40) near the outer side of the connecting column (39), the top of the lower buffer springs (42) is connected to the lower surface of the unit base (11) near the outer side of the connecting column (39), and the top of the connecting column (39) is welded with limit plates (43).

6. The air compressor unit with sound attenuation and noise reduction of claim 1, wherein: The rear surface of the mounting frame (12) is provided with a U-shaped sealing groove (44) in the middle, and the front surface of the sealing frame (17) is fixedly connected with a U-shaped sealing strip (45), and the outer side wall of the U-shaped sealing strip (45) is connected to the inner side wall of the U-shaped sealing groove (44).

7. The air compressor unit with sound attenuation and noise reduction of claim 2, wherein: The side of the lower mounting seat (29) and the upper mounting seat (30) close to each other is provided with a damping rubber pad (46).

8. The air compressor unit with sound attenuation and noise reduction of claim 1, wherein: The front surface of the mounting frame (12) is welded with push handles (47) on both sides of the top.

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