Oil-free air compressor with noise reduction structure

Abstract

The utility model discloses an oilless air compressor with a noise reduction structure, and relates to the technical field of oilless air compressors, the oilless air compressor with the noise reduction structure comprises an air compressor motor, the lower ends of the two ends of the air compressor motor are both provided with mounting seats, the lower ends of the mounting seats are provided with noise reduction assemblies, and the noise reduction assemblies are arranged on the mounting seats. The noise reduction assembly comprises a mounting plate and a supporting bottom plate, the supporting bottom plate is located below the mounting plate, a first damping part and a second damping part are arranged between the mounting plate and the supporting bottom plate, and first inserting grooves are formed in the front surface and the rear surface of the mounting plate; according to the scheme, the problems that most damping structures of an existing oilless air compressor are directly fixed through a plurality of bolts and need to be detached and replaced one by one during maintenance and replacement, tools are needed, the situation that positions are fixed irregularly, multiple times of adjustment are needed, time and labor are wasted, installation and detachment are inconvenient due to the fact that the damping structures are installed at the bottom of an air storage tank, and maintenance is inconvenient are solved. The size is large, and carrying is not easy.

Description

Technical Field

[0001] This utility model relates to the field of oil-free air compressor technology, specifically an oil-free air compressor with a noise reduction structure. Background Technology

[0002] An oil-free air compressor is a device that does not use lubricating oil during the compression process. It uses water as a lubricating medium to ensure the purity of the compressed air and is suitable for scenarios requiring clean gas.

[0003] For example, the Chinese authorized patent with announcement number CN220667946U (A Vibration-Reducing and Noise-Reducing Air Compressor) includes a centrifugal air compressor, an automatic filling mechanism, and a vibration-reducing and noise-reducing device. The automatic filling mechanism is equipped with a working fluid storage tank, a liquid injection pipe is fixedly connected to the top of the working fluid storage tank, a sealing cap is movably connected to the top of the liquid injection pipe, an air injector is fixedly connected to the top of the working fluid storage tank, and a filling port is opened on one side of the working fluid storage tank, with a filling pipe fixedly sleeved on the inner wall of the filling port. By filling the working fluid through the automatic filling mechanism, the efficiency of the centrifugal air compressor is not affected by the loss of internal working fluid, realizing the function of automatic filling of working fluid, solving the problem of working fluid evaporation and vaporization, and improving the overall working efficiency.

[0004] However, most existing oil-free air compressors use multiple bolts for shock absorption, which requires disassembly and replacement of each bolt individually during maintenance. This also necessitates the use of tools, and the individual bolts can lead to misalignment, requiring multiple adjustments, which is time-consuming and labor-intensive. Furthermore, the compressor is installed at the bottom of the air tank, making it bulky and difficult to carry. Therefore, it does not meet current requirements. To address this, we propose an oil-free air compressor with a noise reduction structure. Utility Model Content

[0005] The purpose of this utility model is to provide an oil-free air compressor with a noise reduction structure, so as to solve the problem that the vibration reduction structure of most existing oil-free air compressors mentioned in the background art is directly fixed by multiple bolts. When inspecting and replacing, it is necessary to disassemble and replace them one by one, which requires the use of tools. Furthermore, fixing them one by one is prone to uneven fixing, requiring multiple adjustments, which is time-consuming and laborious, resulting in inconvenient installation and disassembly. In addition, it is installed at the bottom of the air tank, which makes it bulky and difficult to carry.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil-free air compressor with a noise reduction structure, comprising: an air compressor motor, wherein mounting bases are provided at the lower ends of both ends of the air compressor motor, and a noise reduction component is provided at the lower end of the mounting bases, the noise reduction component comprising a mounting plate and a supporting base plate, wherein the supporting base plate is located below the mounting plate, and a first damping part and a second damping part are provided between the mounting plate and the supporting base plate, wherein the first damping part is located in front of the second damping part.

[0007] Preferably, the mounting plate has a first slot on both the front and rear surfaces, a first limiting groove on the lower surface of both ends of the first slot, a moving groove on the upper surface at the center of the first slot, and a second slot on both the front and rear surfaces of the supporting base plate, with a second limiting groove on the upper surface of both ends of the second slot.

[0008] Preferably, both the first damping part and the second damping part include an upper insert plate. The lower surfaces of both ends of the upper insert plate are provided with first limiting seats. A connecting top seat is provided at the center of the upper surface of the upper insert plate. The upper insert plate, the first limiting seats and the connecting top seat are respectively inserted along the first limiting groove and the moving groove of the first slot.

[0009] Preferably, a threaded rod is inserted into one end of the connecting top seat, and one end of the threaded rod passes through the two connecting top seats and is threadedly connected to a compression sleeve.

[0010] Preferably, both the first damping part and the second damping part further include a lower insert plate. The upper surfaces of both ends of the lower insert plate are provided with second limiting seats, and the lower insert plate and the second limiting seats are inserted along the second slot and the second limiting groove, respectively. An air spring is provided between the first limiting seat and the second limiting seat.

[0011] Preferably, a connecting plate is provided on one side of the second limiting seat, and the connecting plate is welded and fixed to the second limiting seat. A stabilizing plate is provided on the rear surface of the connecting plate. A stabilizing hole is provided on the upper surface of one end of the stabilizing plate, and the stabilizing plate is fixed to the supporting base plate through an external knob connected to the stabilizing hole.

[0012] Preferably, the upper surface of the corner of the mounting plate and the supporting base plate is provided with an adjustment groove, and the upper end of the mounting seat is provided with a threaded fastener, and one end of the threaded fastener passes through the adjustment groove of the mounting seat and the mounting plate in sequence and is then connected to a nut for fixation.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model provides a noise reduction component at the lower end of the mounting base. The noise reduction component consists of a mounting plate, a support base plate, a first damping part, and a second damping part. The upper insert plates, first limiting seats, and connecting top seats of the first and second damping parts are inserted along the first slot, first limiting groove, and moving groove on the front and rear surfaces of the mounting plate, respectively. At the same time, the lower insert plates and second limiting seats of the first and second damping parts are inserted along the second slot and second limiting groove on the front and rear surfaces of the support base plate, respectively. This avoids positional displacement of the first and second damping parts, eliminates the need for multiple adjustments to their positions, and reduces the likelihood of air spring installation position displacement, thus improving connection stability and speed. One end of the device passes through the connecting top seat of the first and second shock absorbers in sequence and is threaded to a compression sleeve, thereby fixing the first and second shock absorbers. During disassembly, it is not necessary to use tools to disassemble the air springs one by one. Only the first and second shock absorbers need to be removed. The air springs can be replaced by replacing the first and second shock absorbers, which improves convenience. This solves the problem that most existing oil-free air compressor shock absorber structures are directly fixed by multiple bolts. During maintenance and replacement, each component needs to be disassembled and replaced one by one, which requires the use of tools. Furthermore, the individual fixing is prone to misalignment, requiring multiple adjustments, which is time-consuming and laborious, resulting in inconvenient installation and disassembly. In addition, the device is installed at the bottom of the air tank, making it bulky and difficult to carry.

[0015] (2) By setting a stabilizing plate at the rear end of the connecting plate, the first damping part and the second damping part have the same structure. The only difference is that the stabilizing plate is installed at a different height. The stabilizing plate of the first damping part is installed at a lower height than the stabilizing plate of the second damping part. After connection, they are stacked on top of each other. The stabilizing plate is fixed to the support base plate through the external knob (not shown in the figure) of the stabilizing hole, which further enhances the stability of the first damping part and the second damping part. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the assembled structure of the noise reduction component of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the noise reduction component of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the two stabilizing plates of this utility model;

[0020] In the diagram: 1. Air compressor motor; 2. Mounting base; 3. Noise reduction component; 4. Threaded fastener; 5. Mounting plate; 6. Support base plate; 7. First shock absorber; 8. Second shock absorber; 9. Adjustment groove; 10. Threaded rod; 11. Extrusion sleeve; 12. First slot; 13. First limiting groove; 14. Moving groove; 15. Second slot; 16. Second limiting groove; 17. Upper insert plate; 18. First limiting seat; 19. Air spring; 20. Lower insert plate; 21. Second limiting seat; 22. Connecting plate; 23. Stabilizing plate; 24. Connecting top seat; 25. Stabilizing hole. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4This utility model provides an embodiment of an oil-free air compressor with a noise reduction structure, comprising: an air compressor motor 1, mounting bases 2 at the lower ends of both ends of the air compressor motor 1, a noise reduction component 3 at the lower end of the mounting base 2, the noise reduction component 3 including a mounting plate 5 and a supporting base plate 6, with the supporting base plate 6 located below the mounting plate 5, a first damping part 7 and a second damping part 8 disposed between the mounting plate 5 and the supporting base plate 6, with the first damping part 7 located in front of the second damping part 8, and a first slot 12 provided on both the front and rear surfaces of the mounting plate 5, with a noise reduction component 3 provided on the lower surface of both ends of the first slot 12. A first limiting groove 13 is provided, and a moving groove 14 is provided on the upper surface of the center of the first slot 12. Second slots 15 are provided on both the front and rear surfaces of the supporting base plate 6. Second limiting grooves 16 are provided on the upper surfaces of both ends of the second slots 15. Both the first shock absorber 7 and the second shock absorber 8 include an upper insert plate 17. First limiting seats 18 are provided on the lower surfaces of both ends of the upper insert plate 17. A connecting top seat 24 is provided at the center of the upper surface of the upper insert plate 17. The upper insert plate 17, the first limiting seats 18, and the connecting top seat 24 are inserted along the first limiting groove 13 and the moving groove 14 of the first slot 12, respectively. Both the shock absorber 7 and the second shock absorber 8 also include a lower insert plate 20. The upper surfaces of both ends of the lower insert plate 20 are provided with second limiting seats 21. The lower insert plate 20 and the second limiting seats 21 are inserted along the second slot 15 and the second limiting groove 16, respectively. An air spring 19 is provided between the first limiting seat 18 and the second limiting seat 21. The upper insert plate 17, the first limiting seat 18, and the connecting top seat 24 of the first shock absorber 7 and the second shock absorber 8 are inserted along the first slot 12, the first limiting groove 13, and the moving groove 14 on the front and rear surfaces of the mounting plate 5, respectively. Simultaneously with insertion, the first shock absorber 7 and the second shock absorber... The lower insert plate 20 and the second limiting seat 21 of the shock absorber 8 are inserted into the second slot 15 and the second limiting groove 16 on the front and rear surfaces of the support base plate 6, respectively, to avoid the position of the first shock absorber 7 and the second shock absorber 8 being offset. This eliminates the need for multiple adjustments to the position of the first shock absorber 7 and the second shock absorber 8, making it less likely to cause the air spring 19 to be offset, thus improving the stability and speed of the connection. At this time, the stabilizing plate 23 of the first shock absorber 7 is located at the lower end of the stabilizing plate 23 of the second shock absorber 8, in an overlapping manner, thereby achieving the initial connection between the first shock absorber 7 and the second shock absorber 8 and the mounting plate 5 and the support base plate 6.

[0023] A threaded rod 10 is inserted into one end of the connecting top seat 24. One end of the threaded rod 10 passes through both connecting top seats 24 and is threadedly connected to a compression sleeve 11. A connecting plate 22 is provided on one side of the second limiting seat 21, and the connecting plate 22 is welded and fixed to the second limiting seat 21. A stabilizing plate 23 is provided on the rear surface of the connecting plate 22. A stabilizing hole 25 is provided on the upper surface of one end of the stabilizing plate 23, and the stabilizing plate 23 is fixed to the supporting base plate 6 via an external knob connected to the stabilizing hole 25. After the first damping part 7 and the second damping part 8 are initially fixed, one end of the threaded rod 10 passes sequentially through the first damping part 7 and the second damping part 8. The connecting top seat 24 of 8 is threaded with a compression sleeve 11 to fix the first damping part 7 and the second damping part 8. The stabilizing plate 23 is fixed to the supporting base plate 6 through the external knob (not shown in the figure) of the stabilizing hole 25, which further enhances the fixing stability of the first damping part 7 and the second damping part 8. Thus, the first damping part 7 and the second damping part 8 are fixed with the mounting plate 5 and the supporting base plate 6, forming a noise reduction component 3. Multiple air springs 19 buffer the vibration of the air compressor motor 1 during use, thereby reducing vibration noise and achieving a noise reduction effect.

[0024] Disassembly only requires removing the knob and threaded rod 10 to remove the first shock absorber 7 and the second shock absorber 8. The air spring can be replaced by replacing the first shock absorber 7 and the second shock absorber 8, without having to use tools to disassemble the air springs 19 one by one, thus improving convenience.

[0025] Please see Figure 1 , 2 The upper surface of the corner of the mounting plate 5 and the support base plate 6 are provided with adjustment grooves 9. The upper end of the mounting base 2 is provided with threaded fasteners 4. One end of the threaded fasteners 4 passes through the adjustment grooves 9 of the mounting base 2 and the mounting plate 5 in sequence and is then connected to a nut for fixation, so as to fix the noise reduction component 3 to the mounting base 2 and facilitate the disassembly of the noise reduction component 3. The air compressor motor 1 can be installed on the air tank through the support base plate 6.

[0026] 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. An oil-free air compressor with a noise reduction structure, comprising an air compressor motor (1), characterized in that: The air compressor motor (1) has mounting bases (2) at both ends of its lower end. The mounting bases (2) have noise reduction components (3) at their lower ends. The noise reduction components (3) include a mounting plate (5) and a supporting base plate (6). The supporting base plate (6) is located below the mounting plate (5). A first damping part (7) and a second damping part (8) are provided between the mounting plate (5) and the supporting base plate (6). The first damping part (7) is located in front of the second damping part (8). The mounting plate (5) is provided with a first slot (12) on both the front and rear surfaces. The lower surfaces of both ends of the first slot (12) are provided with a first limiting groove (13). The upper surface of the center of the first slot (12) is provided with a moving groove (14). The support base plate (6) is provided with a second slot (15) on both the front and rear surfaces. The upper surfaces of both ends of the second slot (15) are provided with a second limiting groove (16). The first shock absorber (7) and the second shock absorber (8) both include an upper insert plate (17). The lower surfaces of both ends of the upper insert plate (17) are provided with a first limiting seat (18). A connecting top seat (24) is provided at the center of the upper surface of the upper insert plate (17). The upper insert plate (17), the first limiting seat (18) and the connecting top seat (24) are inserted along the first slot (12), the first limiting groove (13) and the moving groove (14) respectively.

2. The oil-free air compressor with a noise reduction structure according to claim 1, characterized in that: One end of the connecting top seat (24) is inserted with a threaded rod (10), and one end of the threaded rod (10) passes through the two connecting top seats (24) and is threadedly connected to a compression sleeve (11).

3. The oil-free air compressor with a noise reduction structure according to claim 1, characterized in that: The first shock absorber (7) and the second shock absorber (8) both include a lower insert plate (20). The upper surfaces of both ends of the lower insert plate (20) are provided with second limiting seats (21). The lower insert plate (20) and the second limiting seat (21) are inserted along the second slot (15) and the second limiting groove (16) respectively. An air spring (19) is provided between the first limiting seat (18) and the second limiting seat (21).

4. An oil-free air compressor with a noise reduction structure according to claim 3, characterized in that: A connecting plate (22) is provided on one side of the second limiting seat (21), and the connecting plate (22) is welded and fixed to the second limiting seat (21). A stabilizing plate (23) is provided on the rear surface of the connecting plate (22). A stabilizing hole (25) is provided on the upper surface of one end of the stabilizing plate (23), and the stabilizing plate (23) is fixed to the supporting base plate (6) through an external knob connected to the stabilizing hole (25).

5. An oil-free air compressor with a noise reduction structure according to claim 1, characterized in that: The upper corner surfaces of the mounting plate (5) and the support base plate (6) are provided with adjustment grooves (9). The upper end of the mounting base (2) is provided with a threaded fastener (4), and one end of the threaded fastener (4) passes through the adjustment grooves (9) of the mounting base (2) and the mounting plate (5) in sequence and is then fixed with a nut.

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