Mounting structure of air filter, air filter and air compressor

Abstract

The utility model discloses a mounting structure of an air filter, the air filter and an air compressor. The air filter comprises an upper shell, a lower shell and an air filtering structure arranged between the upper shell and the lower shell, the lower shell is provided with an airflow opening, the mounting structure comprises a hollow round pipe joint arranged on the airflow opening, and the end, away from the airflow opening, of the round pipe joint comprises a plurality of elastic structures. A gap is formed between every two adjacent elastic structures; the free end of each elastic structure protrudes outwards in the radial direction to form a clamping part, and when the round pipe connector is connected into a pump head air inlet of the air compressor, each elastic structure elastically deforms so that each clamping part can pass through the pump head air inlet. And after each clamping part penetrates through the air inlet of the pump head, the elastic structure restores deformation, so that each clamping part is clamped to the air inlet of the pump head. According to the technical scheme, the assembly process is simplified through deformation and recovery of the elastic structure of the mounting structure.

Description

Technical Field

[0001] The present application relates to the field of air compressor auxiliary devices, and in particular to an air filter installation structure, an air filter, and an air compressor. Background Art

[0002] In the manufacturing industry of air compressors and related accessories, air filters are one of the key components, and their installation method has a direct impact on production efficiency and product performance. Traditional air filter installation technology usually uses threaded connections to install the filter to the air compressor. The air filter under this assembly is relatively cumbersome when assembled to the air compressor, which is not conducive to mass production.

[0003] In view of this, the market urgently needs to provide an improved air filter installation structure and an air filter and an air compressor to overcome the defects of the prior art. Utility Model Content

[0004] In view of the above technical problems, the purpose of the present application is to provide an air filter installation structure, an air filter, and an air compressor that are easier to assemble when the air filter is assembled to an air compressor.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] The present application provides an installation structure for an air filter, the air filter comprising an upper shell, a lower shell and an air filtering structure arranged between the upper shell and the lower shell, the lower shell being provided with an air flow port, the installation structure comprising a hollow round pipe joint for being arranged on the air flow port, the round pipe joint comprising a plurality of elastic structures at one end away from the air flow port, and gaps between adjacent elastic structures; the free end of each of the elastic structures protrudes radially outward to form a clamping portion, when the round pipe joint is connected to the air inlet of the pump head of the air compressor, each of the elastic structures undergoes elastic deformation to allow each of the clamping portions to pass through the air inlet of the pump head, and after each of the clamping portions passes through the air inlet of the pump head, the elastic structure resumes its deformation to allow each of the clamping portions to be clamped to the air inlet of the pump head.

[0007] A further technical solution is that the number of the elastic structures of the round pipe joint is an even number greater than 6.

[0008] A further technical solution is that the elastic structure of the round pipe joint is symmetrically arranged relative to the central axis of the round pipe joint.

[0009] A further technical solution is that the end faces of each of the clamping parts close to and away from the air inlet of the pump head are planes, and the area of ​​the end face of the clamping part close to the air inlet of the pump head is smaller than the area of ​​the end face away from the air inlet of the pump head.

[0010] A further technical solution is that one end of the round pipe joint close to the air flow outlet comprises a fixing portion, a protruding portion, and a connecting portion between the protruding portion and each of the clamping portions, and the fixing portion and the air flow outlet are interference fit.

[0011] A further technical solution is that the fixing portion, the protruding portion, the connecting portion and each of the clamping portions are an integrated structure.

[0012] The present application also provides an air filter, which includes any of the mounting structures described above.

[0013] The present application also provides an air compressor, which includes the air filter as described in the above claims, and also includes a compressor cylinder, and the air filter is connected to the pump head air inlet of the compressor cylinder.

[0014] Compared with the related art, the utility model provides an installation structure of an air filter, an air filter and an air compressor, and the advantages include: the lower shell is designed with an air flow port for guiding air into the interior of the air filter and filtering through the air filtering structure. A hollow round pipe joint is provided on the air flow port as an interface for connecting the air filter and the air inlet of the air compressor pump head. A plurality of elastic structures are provided at one end of the round pipe joint away from the air flow port, and there is a gap between adjacent elastic structures to allow independent movement between them. The free end of each elastic structure is designed to protrude radially outward to form a clamping part. When installing, the round pipe joint is aligned with the air inlet of the air compressor pump head. Due to the size limitation of the pump head air inlet, the elastic structure undergoes elastic deformation, and the clamping part passes through the air inlet smoothly. Once the clamping part passes through the pump head air inlet, the elastic structure immediately returns to its original state, and the clamping part is fastened to the pump head air inlet due to the elastic action, so as to achieve fixation and sealing. Compared with the traditional threaded connection, the step of threading the pump head air inlet is omitted, the cylinder finishing step is reduced, and the assembly process is simplified. Since the installation process no longer relies on complex thread tightening, the assembly time is greatly shortened, improving the efficiency of mass production. The deformation and recovery of the elastic structure provides a good sealing effect for the pump head air inlet, preventing air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an air filter installation structure provided by the prior art is shown;

[0016] Figure 2 A schematic diagram of the structure of an air filter provided in an embodiment of the present application is shown;

[0017] Figure 3 A schematic cross-sectional structure diagram of an air filter provided in an embodiment of the present application is shown.

[0018] As shown in the figure, 100, upper shell; 200, lower shell; 300, mounting structure; 310, round pipe joint; 320, elastic structure; 330, holding part; 311, raised part; 312, connecting part; 313, fixing part. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0020] The following will be combined with the accompanying drawings and specific implementation methods to specifically describe in detail the technical solutions of the embodiments of the present application and how the technical solutions of the embodiments of the present application solve the above-mentioned technical problems. It should be noted that the embodiments described below or the technical features can be arbitrarily combined to form new embodiments. The description order of the following embodiments is not intended to limit the preferred order of the embodiments. The same or similar concepts or processes may not be repeated in some embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of them.

[0021] See also Figure 1 , is a schematic diagram of the structure of the installation structure of the air filter in the related art. In the related art, the air filter is connected to the air inlet connection of the pump head (air inlet). The air filter under this assembly is more complicated when assembled to the air inlet connection of the pump head, and the air inlet connection of the pump head also needs to be threaded, which reduces the overall production efficiency.

[0022] The utility model provides an air filter installation structure, an air filter, and an air compressor, which simplifies the assembly process through the elastic structural deformation and recovery of the installation structure. The following first describes part of the air filter installation structure, and then describes the air filter and the air compressor.

[0023] See also Figure 2 and Figure 3The present embodiment provides an installation structure 300 of an air filter, wherein the air filter comprises an upper shell 100, a lower shell 200 and an air filtering structure arranged between the upper shell and the lower shell, wherein the lower shell 200 is provided with an air flow port, and the installation structure 300 comprises a hollow round pipe joint 310 for being arranged on the air flow port, wherein the end of the round pipe joint 310 away from the air flow port comprises a plurality of elastic structures 320, and there is a gap between adjacent elastic structures 320; the free end of each elastic structure 320 radially protrudes outward to form a clamping portion 330, and when the round pipe joint 310 is connected to the air inlet of the pump head of the air compressor, each elastic structure 320 undergoes elastic deformation to allow each clamping portion 330 to pass through the air inlet of the pump head, and after each clamping portion 330 passes through the air inlet of the pump head, the elastic structure 320 recovers its deformation to allow each clamping portion 330 to be clamped to the air inlet of the pump head.

[0024] The lower housing 200 is designed with an airflow port for guiding air into the interior of the air filter and filtering it through the air filtering structure. A hollow round pipe joint 310 is provided on the airflow port as an interface for connecting the air filter and the air inlet of the air compressor pump head. A plurality of elastic structures 320 are provided at one end of the round pipe joint 310 away from the airflow port, and there are gaps between adjacent elastic structures 320 to allow independent movement between them. The free end of each elastic structure 320 is designed to protrude radially outward to form a clamping portion 330. During installation, the round pipe joint 310 is aligned with the air inlet of the air compressor pump head. Due to the size limitation of the pump head air inlet, the elastic structure 320 undergoes elastic deformation, and the clamping portion 330 passes through the air inlet smoothly. Once the clamping portion 330 passes through the pump head air inlet, the elastic structure 320 immediately returns to its original state, and the clamping portion 330 is fastened to the pump head air inlet due to elastic action to achieve fixation and sealing.

[0025] The effect of the above technical solution is that compared with the traditional threaded connection, the step of threading the pump head air inlet is omitted, the cylinder finishing steps are reduced, and the assembly process is simplified. Since the installation process no longer relies on complex thread tightening, the assembly time is greatly shortened, and the efficiency of mass production is improved. The deformation and recovery of the elastic structure 320 provides a good sealing effect for the pump head air inlet, preventing air leakage.

[0026] In some embodiments, the number of the elastic structures 320 of the round pipe joint 310 is an even number greater than 6. The elastic structures 320 of the round pipe joint 310 are symmetrically arranged with respect to the central axis of the round pipe joint 310 .

[0027] The effect of the above technical solution is that the number of the elastic structures 320 of the round pipe joint 310 is an even number greater than 6, and increases in even numbers to ensure the symmetry and uniformity of the structure. The elastic structures 320 are symmetrically arranged relative to the central axis of the round pipe joint 310, which helps to maintain the stability and balance of the round pipe joint 310 during installation and removal. The symmetrically arranged elastic structures 320 can provide uniform sealing force, reduce the risk of air leakage, and improve the energy efficiency of the compressor.

[0028] In some embodiments, the end surfaces of each of the clamping portions 330 close to and away from the pump head air inlet are planes, and the area of ​​the end surface of the clamping portion 330 close to the pump head air inlet is smaller than the area of ​​the end surface away from the pump head air inlet.

[0029] The end surface area of ​​the clamping portion 330 close to the pump head air inlet is smaller than the end surface area away from the pump head air inlet. When the elastic structure 320 is deformed, the smaller end surface of the clamping portion 330 first contacts the pump head air inlet, making it easier to insert. Once the larger end surface of the clamping portion 330 enters the pump head air inlet, the elastic structure 320 recovers its deformation.

[0030] In some embodiments, the end of the round pipe joint 310 near the air flow port includes a fixing portion 313, a protruding portion 311, and a connecting portion 312 between the protruding portion 311 and each of the clamping portions 330, and the fixing portion 313 and the air flow port are interference fit. The interference fit of the fixing portion 313 provides a reliable fixing method to ensure the stability of the round pipe joint 310 on the air flow port.

[0031] In some embodiments, the fixing portion 313, the protruding portion 311, the connecting portion 312 and each of the clamping portions 330 are an integrated structure. The integrated structure reduces the need to manufacture and assemble each component separately, reducing manufacturing complexity and assembly time.

[0032] The embodiment of the present application further provides an air filter, the air filter comprising the mounting structure described in any one of the above embodiments. The implementation method and effect of the mounting structure of the air filter have been described above and will not be repeated here.

[0033] When using the air filter with the above-mentioned mounting structure, the holding portion can be pushed into the air inlet of the pump head and locked by the toughness of the material to achieve the assembly effect.

[0034] The embodiment of the present application also provides an air compressor, wherein the air filter described in the above embodiment of the air compressor further includes a compressor cylinder, and the air filter is connected to the pump head air inlet of the compressor cylinder. The implementation method and effect of the air filter and its mounting structure in the air compressor have been stated above and will not be repeated here. An air compressor using an air filter with the above structure can reduce assembly time and improve production efficiency; it can also eliminate the thread processing on the cylinder head air inlet hole (the pump head air inlet of the compressor cylinder), reduce the cylinder finishing steps, effectively reduce the time requirement due to thread matching, and is simple and quick to operate, thereby improving production efficiency.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are configured to distinguish similar objects, and are not necessarily configured to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] This application is explained from the perspectives of purpose of use, effectiveness, progress and novelty, and has met the functional enhancement and usage requirements emphasized by the Patent Law. The above description and drawings of this application are only the preferred embodiments of this application, and are not intended to limit this application. Therefore, all structures, devices, features, etc. that are similar or identical to this application, that is, all equivalent replacements or modifications made in accordance with the scope of the patent application of this application, should fall within the scope of protection of the patent application of this application.

Claims

1. An air filter installation structure, the air filter comprising an upper shell, a lower shell and an air filtering structure arranged between the upper shell and the lower shell, the lower shell being provided with an air flow port, characterized in that: The mounting structure includes a hollow round tube joint for being arranged on the air flow port, and the end of the round tube joint away from the air flow port includes a plurality of elastic structures, and there is a gap between adjacent elastic structures; the free end of each elastic structure protrudes radially outward to form a clamping portion, and when the round tube joint is connected to the air inlet of the pump head of the air compressor, each elastic structure undergoes elastic deformation to allow each clamping portion to pass through the air inlet of the pump head, and after each clamping portion passes through the air inlet of the pump head, the elastic structure restores its deformation to allow each clamping portion to be clamped to the air inlet of the pump head.

2. The air filter installation structure according to claim 1, characterized in that: The number of the elastic structures of the round pipe joint is an even number greater than 6.

3. The air filter installation structure according to claim 2, characterized in that: The elastic structure of the round pipe joint is symmetrically arranged relative to the central axis of the round pipe joint.

4. The air filter installation structure according to claim 2, characterized in that: The end surfaces of each of the clamping parts close to and away from the air inlet of the pump head are planes, and the area of ​​the end surface of the clamping part close to the air inlet of the pump head is smaller than the area of ​​the end surface away from the air inlet of the pump head.

5. The air filter installation structure according to claim 1, characterized in that: One end of the round pipe joint close to the air flow opening comprises a fixing portion, a protruding portion, and a connecting portion between the protruding portion and each of the clamping portions, and the fixing portion and the air flow opening are interference fit.

6. The air filter installation structure according to claim 5, characterized in that: The fixing portion, the protruding portion, the connecting portion and each of the clamping portions are an integrated structure.

7. An air filter, characterized in that: The air filter comprises the mounting structure according to any one of claims 1-6.

8. An air compressor, characterized in that: The air compressor includes the air filter according to claim 7, and also includes a compressor cylinder, and the air filter is connected to the pump head air inlet of the compressor cylinder.

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