Shock absorption and noise reduction type screw air compressor

Abstract

The utility model discloses a shock absorption and noise reduction type screw air compressor, belongs to the technical field of air compressors, and mainly solves the problems that a coarse filter and a fine filter in an air compressor in the prior art are inconvenient to disassemble and assemble, and cannot be cleaned in time when being blocked by impurities, so that the service life of the air compressor is prolonged. The air compressor comprises a sound insulation shell, a screw air compressor body is installed in the sound insulation shell, a purification box is arranged at the top of the sound insulation shell, the input end of the screw air compressor body is connected with an air inlet hose, one end of the air inlet hose extends into the purification box, and the other end of the air inlet hose extends into the purification box. A mounting shell is arranged at the top of the purification box, a cleaning and filtering assembly is arranged in the purification box, a fixing sleeve is arranged on the surface of one side of the mounting shell, the inner surface of the fixing sleeve is in threaded connection with a filter cartridge, and the inner wall of the filter cartridge is fixedly connected with a filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, and more specifically, to a vibration-reducing and noise-reducing screw air compressor. Background Art

[0002] The screw air compressor is an oil-injected single-stage twin-screw compressor, which is divided into single-screw air compressor and twin-screw air compressor. It adopts high-efficiency pulley transmission to drive the main engine to rotate for air compression, and the compressed air in the main engine is cooled by oil injection. The air and oil mixed gas discharged by the main engine is separated through coarse and fine separation to separate the oil in the compressed air, and finally clean compressed air is obtained. The shock-absorbing and noise-reducing screw air compressor has excellent reliability performance. Its biggest advantages are small vibration, low noise, easy operation and high operating efficiency.

[0003] However, there are various types of air compressors in the prior art. For example, utility model patent CN208564967U relates to a screw air compressor with sound insulation and noise reduction functions. The utility model is provided with an air inlet pipe, and the air inlet pipe is connected to an air filter. The air filter includes a coarse filter and a fine filter. An air inlet is provided on one side of the coarse filter, and a filter screen is provided in the air inlet. The fine filter is arranged below the coarse filter and the interior of the fine filter is provided with a paper filter element, a wet filter layer, a wet filter element and an oil layer from top to bottom. An air guide pipe is provided at the bottom of the coarse filter and extends below the liquid level of the oil layer. The air inlet pipe is provided on one side of the fine filter and is located above the paper filter element. An air outlet pipe connected to the compressor body is provided on the other side of the top of the sound insulation shell, and a shock-absorbing base is provided at the bottom of the sound insulation shell.

[0004] Although the screw air compressor can use the air filter to filter the incoming air, the coarse filter and the fine filter in the air compressor are not easy to disassemble and assemble. When the coarse filter and the fine filter are clogged with impurities, they cannot be cleaned in time, which affects the purification effect of the introduced air. In order to avoid this phenomenon, it is very necessary to design a vibration-absorbing and noise-reducing screw air compressor. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to achieve the above object, the utility model provides a vibration-reducing and noise-reducing screw air compressor, which is achieved by the following specific technical means:

[0007] A vibration-damping and noise-reducing screw air compressor comprises a soundproof shell, a screw air compressor body is installed inside the soundproof shell, a purification box is arranged on the top of the soundproof shell, an input end of the screw air compressor body is connected to an air intake hose, and one end of the air intake hose extends into the purification box, a mounting shell is arranged on the top of the purification box, a filter assembly is arranged inside the purification box, a fixing sleeve is arranged on one side surface of the mounting shell, a filter cartridge is threadedly connected to the inner surface of the fixing sleeve, and a filter screen is fixedly connected to the inner wall of the filter cartridge.

[0008] Preferably, the filter assembly is an air guide hood, a mounting cap, a connecting head, an air filter, a sealing plate and connecting bolts. The inner wall of the purification box is fixedly connected to the air guide hood, a mounting cap is provided on one side surface of the air guide hood, a connecting head is detachably provided inside the mounting cap, one end of the connecting head is fixedly connected to the air filter, and the air filter is fixed inside the purification box.

[0009] Preferably, a sealing plate is detachably provided on one side surface of the purification box, and a plurality of connecting bolts are penetrated through one side surface of the sealing plate.

[0010] Preferably, a guide tube is embedded in a side surface of the purification box close to the air guide cover, and one end of the guide tube extends into the mounting shell. The output end of the screw air compressor body is connected to an air outlet hose, and one end of the air outlet hose extends outside the soundproof shell.

[0011] Preferably, a plurality of guide rods are fixedly connected to the inner bottom wall of the sound insulation shell, a sliding sleeve is slidably installed on the surface of the guide rod, a bearing plate is fixed to the outer surface of the sliding sleeve, and the bearing plate is located in the sound insulation shell, and a plurality of damping shock absorbers are fixedly installed on the inner bottom wall of the sound insulation shell, and the top ends of the plurality of damping shock absorbers are fixedly connected to the bottom of the bearing plate.

[0012] Preferably, a support plate is fixedly connected to the inner wall of the mounting shell, and a fan is fixedly mounted on one side surface of the support plate.

[0013] Preferably, the inner wall of the soundproof shell is provided with a sound-absorbing cotton board, the bottom of the soundproof shell is provided with a base, the four bottom corners of the base are equipped with fixed feet, and the front of the soundproof shell is provided with a door through a hinge.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] When the screw air compressor is running for a long time, the air filter and the filter screen are prone to blockage during the filtering operation. At this time, use the threaded fit between the fixing sleeve and the filter cartridge to screw the filter cartridge, remove the filter screen for cleaning, and at the same time release the fixing effect of the connecting bolts and the mounting cap, take the air filter out of the purification box, and clean it. This makes it easier to disassemble or install the machine body, and clean the accumulated dust in time to ensure the purification effect of the introduced air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a perspective structural schematic diagram of the utility model;

[0019] Figure 3 It is a front cross-sectional schematic diagram of the filter assembly;

[0020] Figure 4 is a front cross-sectional schematic diagram of the installation shell;

[0021] Figure 5 It is a structural schematic diagram of the sound insulation box.

[0022] In the figure: 1. Sound insulation shell; 2. Screw air compressor body; 3. Purification box; 4. Air guide cover; 5. Mounting cap; 6. Connector; 7. Air filter; 8. Sealing plate; 9. Connecting bolt; 10. Mounting shell; 11. Fixing sleeve; 12. Filter cartridge; 13. Filter screen; 14. Support plate; 15. Fan; 16. Inlet hose; 17. Guide pipe; 18. Outlet hose; 19. Guide rod; 20. Sliding sleeve; 21. Loading plate; 22. Damping shock absorber; 23. Sound-absorbing cotton board; 24. Base; 25. Fixed support foot; 26. Box door. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0026] like Figure 1 , Figure 2 as well as Figure 3 As shown, it is a structural schematic diagram of the vibration-damping and noise-reducing screw air compressor in this embodiment. In this embodiment, the screw air compressor is often used for the circulation, compression and filtration of refrigerants. Refrigeration equipment such as air conditioners and heat pumps all need to use screw compressors for air circulation and refrigeration. The air compressor includes a soundproof shell 1, a screw air compressor body 2 is installed inside the soundproof shell 1, a purification box 3 is arranged on the top of the soundproof shell 1, an air guide cover 4 is fixedly connected to the inner wall of the purification box 3, a mounting cap 5 is arranged on one side surface of the air guide cover 4, a connector 6 is detachably arranged inside the mounting cap 5, one end of the connector 6 is fixedly connected to an air filter 7, and the air filter 7 is fixed inside the purification box 3, a sealing plate 8 is detachably arranged on one side surface of the purification box 3, and a plurality of connecting bolts 9 are penetrated through one side surface of the sealing plate 8;

[0027] like Figure 4 As shown, in this embodiment, a mounting shell 10 is provided on the top of the purification box 3, and a fixing sleeve 11 is provided on one side surface of the mounting shell 10. A filter cartridge 12 is threadedly connected to the inner surface of the fixing sleeve 11, and a filter screen 13 is fixedly connected to the inner wall of the filter cartridge 12. A support plate 14 is fixedly connected to the inner wall of the mounting shell 10, and a fan 15 is fixedly installed on one side surface of the support plate 14. During the air intake process of the screw air compressor, air will enter the mounting shell 10 from the filter cartridge 12, and the incoming air will be preliminarily filtered, and then introduced into the purification box 3 through the started fan 15, and then passed through The use of the air filter 7 further filters the air and allows clean air to be introduced into the air compressor. During long-term filtering operations, the air filter 7 and the filter screen 13 are prone to clogging. At this time, the threaded fit between the fixing sleeve 11 and the filter cartridge 12 is utilized to screw the filter cartridge 12, remove the filter screen 13 for cleaning, and at the same time release the fixing effect of the connecting bolts 9 and the mounting cap 5, take the air filter 7 out of the purification box 3, and clean it. This facilitates the disassembly or installation of the machine body, and timely cleans the accumulated dust to ensure the purification effect of the introduced air.

[0028] It is worth noting that the air guide hood 4, mounting cap 5, connector 6, air filter 7, sealing plate 8 and connecting bolts 9 in this embodiment constitute a filter assembly, which is used to filter impurities contained in the introduced air and facilitate the installation or removal of the air filter 7.

[0029] In addition, if Figure 2 and Figure 4As shown, in this embodiment, the input end of the screw air compressor body 2 is connected to an air intake hose 16, and one end of the air intake hose 16 extends into the purification box 3, and a guide pipe 17 is embedded on the side surface of the purification box 3 close to the air guide cover 4, and one end of the guide pipe 17 extends into the mounting shell 10, and the output end of the screw air compressor body 2 is connected to an outlet hose 18, and one end of the outlet hose 18 extends to the outside of the sound insulation shell 1.

[0030] like Figure 5 As shown, in this embodiment, a plurality of guide rods 19 are fixedly connected to the inner bottom wall of the soundproof shell 1, a sleeve 20 is slidably installed on the surface of the guide rod 19, a bearing plate 21 is fixed to the outer surface of the sleeve 20, and the bearing plate 21 is located in the soundproof shell 1, and the screw air compressor body 2 is placed on the bearing plate 21, and a plurality of damping shock absorbers 22 are fixedly installed on the inner bottom wall of the soundproof shell 1, and the top ends of the plurality of damping shock absorbers 22 are fixedly connected to the bottom of the bearing plate 21, and a sound-absorbing cotton board 23 is provided on the inner wall of the soundproof shell 1. The running screw air compressor vibrates on the bearing plate 21, and the guiding effect between the guide rod 19 and the sleeve 20 is used to position and guide the vibrating bearing plate 21, and the vibrating air compressor is buffered by the setting of the damping shock absorber 22, thereby reducing the noise generated by the vibration of the twin-screw air compressor and achieving the purpose of shock absorption and noise reduction.

[0031] like Figure 1 As shown, in this embodiment, a base 24 is provided at the bottom of the soundproof shell 1, and fixed legs 25 are installed at the four corners of the bottom of the base 24. A door 26 is provided on the front of the soundproof shell 1 through a hinge.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration-damping and noise-reducing screw air compressor, comprising a soundproof shell (1), a screw air compressor body (2) is installed inside the soundproof shell (1), a purification box (3) is arranged on the top of the soundproof shell (1), an air intake hose (16) is connected to the input end of the screw air compressor body (2), and one end of the air intake hose (16) extends into the purification box (3), and a mounting shell (10) is arranged on the top of the purification box (3), characterized in that: A filter assembly is arranged inside the purification box (3), a fixing sleeve (11) is arranged on one side surface of the mounting shell (10), a filter cartridge (12) is threadedly connected to the inner surface of the fixing sleeve (11), and a filter screen (13) is fixedly connected to the inner wall of the filter cartridge (12).

2. A vibration-damping and noise-reducing screw air compressor according to claim 1, characterized in that: The filter assembly comprises an air guide hood (4), a mounting cap (5), a connector (6), an air filter (7), a sealing plate (8) and a connecting bolt (9); the inner wall of the purification box (3) is fixedly connected with the air guide hood (4); a mounting cap (5) is provided on one side surface of the air guide hood (4); a connector (6) is detachably provided inside the mounting cap (5); one end of the connector (6) is fixedly connected with the air filter (7); and the air filter (7) is fixed inside the purification box (3).

3. A vibration-damping and noise-reducing screw air compressor according to claim 1, characterized in that: A sealing plate (8) is detachably provided on one side surface of the purification box (3), and a plurality of connecting bolts (9) are provided through one side surface of the sealing plate (8).

4. A vibration-damping and noise-reducing screw air compressor according to claim 1, characterized in that: A flow guide tube (17) is embedded in a surface of one side of the purification box (3) close to the air guide cover (4), and one end of the flow guide tube (17) extends into the mounting shell (10); an output end of the screw air compressor body (2) is connected to an air outlet hose (18), and one end of the air outlet hose (18) extends to the outside of the soundproof shell (1).

5. The vibration-damping and noise-reducing screw air compressor according to claim 1, characterized in that: A plurality of guide rods (19) are fixedly connected to the inner bottom wall of the soundproof shell (1); a sliding sleeve (20) is slidably mounted on the surface of the guide rod (19); a bearing plate (21) is fixedly mounted on the outer surface of the sliding sleeve (20); and the bearing plate (21) is located in the soundproof shell (1); a plurality of damping shock absorbers (22) are fixedly mounted on the inner bottom wall of the soundproof shell (1); and the top ends of the plurality of damping shock absorbers (22) are fixedly connected to the bottom of the bearing plate (21).

6. The vibration-damping and noise-reducing screw air compressor according to claim 1, characterized in that: A support plate (14) is fixedly connected to the inner wall of the mounting shell (10), and a fan (15) is fixedly mounted on one side surface of the support plate (14).

7. The vibration-damping and noise-reducing screw air compressor according to claim 1, characterized in that: The inner wall of the soundproof shell (1) is provided with a sound-absorbing cotton board (23), the bottom of the soundproof shell (1) is provided with a base (24), the four corners of the bottom of the base (24) are all equipped with fixed feet (25), and the front of the soundproof shell (1) is provided with a door (26) through a hinge.

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