Gas filtering device of piston type compressor

Abstract

The utility model discloses a piston type compressor gas filtering device which comprises a compressor body and a shell connected with a gas inlet pipe of the compressor body, a top cover is detachably installed on the top of the shell through a fixing assembly, a gas inlet is formed in the top cover, a filter cylinder is arranged in the shell, the bottom of the filter cylinder is of an open structure, and the bottom of the filter cylinder is provided with a gas outlet. The utility model relates to the technical field of compressor gas filtration, in the device, the open bottom design of the filter cartridge is combined with the ingenious matching of the guide blocks and the guide grooves, the filter cartridge is arranged in the shell, the filter cartridge is arranged in the shell, the filter cartridge is arranged in the shell, and the filter cartridge is arranged in the shell in a matched mode. A pair of guide blocks is fixedly arranged on two sides of the lower portion of the filter cartridge, and a pair of guide grooves matched with the guide blocks are formed in the inner walls of two sides. Smooth air circulation and filtering efficiency are guaranteed, the cleaning assembly is arranged, a brush on a cleaning ring is driven by a sliding rod, dust and impurities accumulated on the outer wall of the filter cylinder can be effectively removed, filtering resistance is reduced, efficient operation of the compressor is maintained, and performance reduction caused by filter blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor air intake filtering, in particular to a piston compressor gas filtering device. Background Art

[0002] Piston compressors are widely used equipment for compressing gas, and are widely used in many fields such as industry, automobiles, and home appliances. During the operation of the compressor, the inhaled gas may contain dust or other impurities. If these impurities are not effectively filtered, they will seriously damage the precision parts inside the compressor, affecting the compression efficiency and equipment life. Therefore, as an important part of the compressor, the rationality and effectiveness of the design of the gas filter device are crucial.

[0003] Chinese patent CN218844550U discloses a gas filter device for a piston compressor, comprising a compression box, a compressed air device, a connecting pipe, a connecting rod and a filter device, wherein the compressed air device is arranged in the compression box, the connecting pipe is arranged on the compression box, the connecting rod is arranged on the compression box, and the filter device is arranged on the upper side of the connecting rod and is connected to the connecting pipe; the filter device comprises a filter cartridge, a grid plate, a mounting seat, a filter screen, a filter element and a gland;

[0004] The device can filter the inhaled air through the filter and the filter element, but after long-term operation, dust and dirt are easily accumulated on the outer wall of the filter and the filter element, affecting gas circulation and filtering effect, and the disassembly and cleaning process is complicated, which increases maintenance costs. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a piston compressor gas filtering device, which solves the problem that the prior filtering device is inconvenient to clean the filter cartridge, thereby affecting the filtering effect.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a piston compressor gas filtering device, comprising a compressor body and a shell connected to the compressor body air intake pipe, a top cover is detachably mounted on the top of the shell through a fixing assembly, an air inlet is provided on the top cover, a filter cartridge is provided in the shell, the bottom of the filter cartridge is an open structure, a pair of guide blocks are fixedly provided on both sides below the filter cartridge, a pair of guide grooves matching the guide blocks are provided on the inner walls on both sides of the shell, the upper ends of the guide grooves extend upward to the outside of the shell, and a cleaning assembly for cleaning the outer wall of the filter cartridge is provided in the shell.

[0007] Preferably, the cleaning assembly includes a pair of through holes opened on the top cover, a pair of sliding rods are slidably installed in the through holes, connecting rings are installed on the upper ends of the pair of sliding rods, and a cleaning ring mounted on the outside of the filter cartridge is installed on the lower ends, and the inner wall of the cleaning ring is provided with a brush that contacts the outer wall of the filter cartridge.

[0008] Preferably, the fixing assembly includes upper ears arranged on both sides of the top cover, lower ears are arranged on both sides of the shell, studs are fixedly mounted on the lower ears, through holes for the studs to pass through are opened on the upper ears, and butterfly nuts are screwed on the studs.

[0009] Preferably, a dust screen is provided in the air inlet.

[0010] Preferably, a rubber ring is provided on the inner lower wall of the shell, the lower end of the filter cartridge is pressed against the rubber ring, and a pressure column is provided on the lower wall of the top cover, the lower end of the pressure column is pressed against the upper wall of the filter cartridge.

[0011] Beneficial Effects

[0012] The utility model provides a piston compressor gas filtering device, which has the following beneficial effects:

[0013] Through the removable top cover and fixing components (butterfly bolts connecting the upper and lower ears and studs), users can quickly open the housing to inspect, replace or clean the filter cartridge, greatly reducing the difficulty and time cost of maintenance. This design not only improves the maintainability of the equipment, but also extends the overall service life;

[0014] The open bottom design of the filter cartridge, combined with the exquisite coordination of the guide block and the guide groove, ensures smooth gas flow and filtration efficiency. The setting of the cleaning component uses the brush on the cleaning ring driven by the slide rod to effectively remove dust and impurities accumulated on the outer wall of the filter cartridge, reduce filtration resistance, maintain efficient operation of the compressor, and avoid performance degradation caused by filter blockage;

[0015] The rubber ring is set on the lower wall of the shell, in close contact with the lower end of the filter cartridge, ensuring good sealing, preventing unfiltered gas from bypassing, and improving the purity of gas treatment. At the same time, the pressure column design on the lower wall of the top cover further strengthens the stability of the filter cartridge in the working state, avoids displacement caused by vibration, and ensures the continuity and stability of the filtration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the top view and cross-section structure of the shell of the utility model.

[0018] In the figure: 1. compressor body; 2. shell; 3. top cover; 4. filter cartridge; 5. guide block; 6. guide groove; 7. slide rod; 8. connecting ring; 9. cleaning ring; 10. brush; 11. upper ear; 12. lower ear; 13. stud; 14. butterfly nut; 15. dust screen; 16. rubber ring; 17. pressure column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 The utility model provides a technical solution: a piston compressor gas filtering device, comprising a compressor body 1 and a shell 2 connected to the compressor body 1 with an air inlet pipe, a top cover 3 being detachably mounted on the top of the shell 2 through a fixing assembly, an air inlet being arranged on the top cover 3, a filter cartridge 4 being arranged in the shell 2, the bottom of the filter cartridge 4 being an open structure, a pair of guide blocks 5 being fixedly arranged on both sides below the filter cartridge 4, a pair of guide grooves 6 matching the guide blocks 5 being arranged on the inner walls on both sides of the shell 2, the upper ends of the guide grooves 6 extending upward to the outside of the shell 2, a cleaning assembly for cleaning the outer wall of the filter cartridge 4 being arranged in the shell 2.

[0021] By adopting the above technical solution, the device adopts a detachable top cover 3 design, which is connected to the housing 2 through a fixing assembly, so as to facilitate the inspection and replacement of the filter cartridge 4. The open structure at the bottom of the filter cartridge 4 cooperates with the design of the guide block 5 and the guide groove 6 to ensure that the filter cartridge 4 is stable in the housing 2 and is easy to install and remove.

[0022] This embodiment is further configured such that the cleaning assembly includes a pair of through holes opened on the top cover 3, a pair of slide rods 7 are slidably installed in the pair of through holes, a connecting ring 8 is installed at the upper end of the pair of slide rods 7, and a cleaning ring 9 mounted on the outside of the filter cartridge 4 is installed at the lower end, and the inner wall of the cleaning ring 9 is provided with a brush 10 that contacts the outer wall of the filter cartridge 4.

[0023] By adopting the above technical solution, the slide rod 7 and the connecting ring 8 installed through the through hole on the top cover 3 drive the cleaning ring 9 to move up and down along the outer wall of the filter cartridge 4. The brush 10 on the inner wall of the cleaning ring 9 is close to the outer wall of the filter cartridge 4, which can effectively remove the accumulated dust and impurities during maintenance, extend the service life of the filter cartridge 4, and reduce maintenance costs.

[0024] This embodiment is further configured such that the fixing assembly includes upper ears 11 arranged on both sides of the top cover 3, lower ears 12 are arranged on both sides of the shell 2, studs 13 are fixedly installed on the lower ears 12, through holes are opened on the upper ears 11 for the studs 13 to pass through, and butterfly nuts 14 are screwed on the studs 13.

[0025] By adopting the above technical solution, the butterfly nut 14 cooperates with the stud 13 to quickly complete the disassembly and assembly of the top cover 3.

[0026] This embodiment is further configured such that a dust screen 15 is provided in the air inlet.

[0027] The present embodiment is further configured such that a dust screen 15 is built into the air inlet as a first line of defense to block the entry of large particles, thereby alleviating the burden on the filter cartridge 4 and further improving the filtering efficiency.

[0028] This embodiment is further configured such that a rubber ring 16 is provided on the lower inner wall of the shell 2 , the lower end of the filter cartridge 4 is pressed against the rubber ring 16 , and a pressure column 17 is provided on the lower wall of the top cover 3 , the lower end of the pressure column 17 is pressed against the upper wall of the filter cartridge 4 .

[0029] This embodiment is further configured such that the rubber ring 16 on the lower inner wall of the shell 2 not only ensures the sealing of the filter cartridge 4, but also applies appropriate pressure through the pressure column 17 to make the seal between the filter cartridge 4 and the rubber pad tighter, preventing the unfiltered gas from bypassing and ensuring the quality of gas filtration.

[0030] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0031] Embodiment: Before the device introduces external air into the compressor body 1 through the air inlet pipe, it first pre-filters through the filter cartridge 4 in the shell 2 to remove impurities and particles in the gas and protect the interior of the compressor from pollution. The top cover 3 is designed to be detachable to facilitate the replacement and cleaning of the filter cartridge 4. The air inlet is located on the top cover 3, and a dust screen 15 is built in to further block large particles of dust and preliminarily purify the gas. The filter cartridge 4 is set to be open at the bottom to facilitate the passage of gas. At the same time, the guide blocks 5 on both sides thereof match the guide grooves 6 in the shell 2 to ensure that the filter cartridge 4 is stable in the shell 2 and can be smoothly drawn out of the inlet. For cleaning or replacement, a pair of slide bars 7 are installed with a cleaning ring 9 through the through hole on the top cover 3, and a brush 10 is installed in the ring. The brush 10 is close to the outer wall of the filter cartridge 4. Through the up and down movement of the slide bar 7, the brush 10 can effectively clean the dust and impurities accumulated on the outer wall of the filter cartridge 4 to maintain the filtration efficiency of the filter cartridge 4. The upper support ear 11 cooperates with the lower support ear 12, and the stud 13 and the butterfly nut 14 are fastened to ensure a stable seal between the top cover 3 and the shell 2, which is convenient for users to quickly disassemble and assemble the top cover 3 for maintenance operations. At the same time, the butterfly nut 14 is easy to operate manually, does not require professional tools, and is easy to use.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0033] Although the 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 piston compressor gas filtering device, comprising a compressor body (1) and a housing (2) connected to an air inlet pipe of the compressor body (1), characterized in that: A top cover (3) is detachably mounted on the top of the shell (2) through a fixing assembly, and an air inlet is provided on the top cover (3). A filter cartridge (4) is provided in the shell (2), and the bottom of the filter cartridge (4) is an open structure. A pair of guide blocks (5) are fixedly provided on both sides below the filter cartridge (4), and a pair of guide grooves (6) matching the guide blocks (5) are provided on the inner walls on both sides of the shell (2), and the upper ends of the guide grooves (6) extend upward to the outside of the shell (2). A cleaning assembly for cleaning the outer wall of the filter cartridge (4) is provided in the shell (2).

2. A piston compressor gas filter device according to claim 1, characterized in that: The cleaning assembly comprises a pair of through holes formed on the top cover (3), a pair of slide bars (7) being slidably mounted in the through holes, a connecting ring (8) being mounted on the upper ends of the slide bars (7), and a cleaning ring (9) being mounted on the outer side of the filter cartridge (4) being mounted on the lower ends, and a brush (10) being in contact with the outer wall of the filter cartridge (4) being disposed on the inner wall of the cleaning ring (9).

3. A piston compressor gas filtering device according to claim 2, characterized in that: The fixing assembly comprises upper ears (11) arranged on both sides of the top cover (3), lower ears (12) are arranged on both sides of the shell (2), studs (13) are fixedly mounted on the lower ears (12), through holes are opened on the upper ears (11) for the studs (13) to pass through, and butterfly nuts (14) are screwed on the studs (13).

4. A piston compressor gas filter device according to claim 1, characterized in that: A dust screen (15) is provided in the air inlet.

5. The piston compressor gas filter device according to claim 1, characterized in that: A rubber ring (16) is provided on the lower inner wall of the shell (2), and the lower end of the filter cartridge (4) is tightly pressed against the rubber ring (16). A pressure column (17) is provided on the lower inner wall of the top cover (3), and the lower end of the pressure column (17) is tightly pressed against the upper wall of the filter cartridge (4).

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