Universal mechanical air filter

Abstract

The utility model relates to the technical field of general mechanical part production, in particular to a general mechanical air filter which comprises a shell assembly, foam, a connecting seat assembly, a base assembly and an upper cover assembly. The shell assembly is provided with an inner cavity and an outer cavity, the foam is arranged in the inner cavity, the lower side of the shell assembly is provided with the connecting seat assembly and the base assembly, the base assembly is provided with a connecting assembly, and the connecting assembly sequentially penetrates through the connecting seat assembly and the shell assembly and is connected with the upper cover assembly; air enters from the lower side of the outer cavity, sequentially flows through the foam, the inner cavity and the connecting base assembly and then enters the base assembly. According to the utility model, seepage water entering the shell assembly and seepage oil flowing out of the air filter can be reduced; and dust can be effectively prevented, and unfiltered air can be effectively prevented from directly entering the filter cavity assembly, so that the service life of the engine is prolonged, and faults of the engine are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of production of general mechanical parts, in particular to a general mechanical air filter. Background Art

[0002] General mechanical air filters are mainly used to filter dust, impurities, etc. in the air to protect the normal operation of mechanical equipment and extend its service life.

[0003] The current air filter structure usually includes a tube body, in which a filter cotton core is arranged. When in use, the gas is passed into the tube body. When the gas passes through the filter cotton core, the filter cotton core blocks large particles of impurities, thereby separating the gas and impurities, thereby completing the filtration. During the filtration process, impurities remain on the cotton core, resulting in a poor filtration effect. Therefore, in order to ensure the normal operation of the air filter, the filter cotton core needs to be cleaned or replaced regularly.

[0004] With the existing air filter structure, engine failure will cause it to remain in a sliding state; the sealing gasket on the top of the upper cover is prone to poor installation and aging, which will cause a gap between the sealing gasket and the upper cover, resulting in water seepage, dust, and unfiltered air directly entering the engine combustion chamber through the air duct in the air filter cavity assembly, causing engine failure and reducing the engine life.

[0005] Therefore, technical personnel in this field are committed to developing a universal mechanical air filter. The utility model is beneficial to reducing water seepage into the shell assembly and oil seepage out of the air filter; it can also effectively prevent dust and reduce unfiltered air from directly entering the filter chamber assembly, thereby extending the service life of the engine and reducing the occurrence of engine failures. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a universal mechanical air filter, which reduces water seepage into the shell component and oil seepage out of the air filter; it can also effectively prevent dust and reduce unfiltered air from directly entering the filter chamber component, thereby extending the service life of the engine and reducing the occurrence of engine failures.

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] A universal mechanical air filter comprises a shell assembly, foam, a connecting seat assembly, a base assembly and an upper cover assembly;

[0009] The shell assembly has an inner cavity and an outer cavity, the foam is arranged in the inner cavity, the connecting seat assembly and the base assembly are arranged on the lower side of the shell assembly, the base assembly has a connecting assembly, and the connecting assembly passes through the connecting seat assembly and the shell assembly in sequence and is connected to the upper cover assembly;

[0010] The air enters from the lower side of the outer cavity and flows through the foam, the inner cavity, the connecting seat assembly in sequence before entering into the base assembly.

[0011] The beneficial effects of adopting the above scheme are as follows: air enters from the lower side of the outer cavity, enters the inner cavity after passing through the foam filter in sequence, and enters the universal mechanical combustion chamber after passing through the connecting seat assembly and the base assembly. Air enters from the lower side of the shell assembly, reducing water seepage into the shell assembly and oil seepage out of the air filter; it can also effectively prevent dust and reduce unfiltered air from directly entering the filter cavity assembly, thereby extending the service life of the engine and reducing the occurrence of engine failures.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the shell assembly includes a shell inner wall and a shell outer wall, the outer cavity is located between the shell inner wall and the shell outer wall, the inner cavity is located inside the shell inner wall, the height of the shell inner wall is greater than the height of the shell outer wall, and a plurality of air flow notches are also provided on the shell inner wall.

[0014] The beneficial effect of adopting the above further scheme is that the gas is filtered through the foam when entering the inner wall of the shell from the outer wall of the shell, thereby reducing the entry of impurities into the general machinery during combustion, and the air flow notch is conducive to increasing the air flow.

[0015] Furthermore, the inner cavity has an air flow opening in the middle, the foam is located between the air flow opening and the inner wall of the shell, a plurality of supporting ribs are provided between the air flow opening and the inner wall of the shell and under the foam, and a supporting gasket is provided between the supporting ribs and the foam.

[0016] The beneficial effect of adopting the above further solution is that the lower side of the supporting rib is used to temporarily store the seepage oil and seepage water, thereby reducing the contact between the foam and the seepage oil or seepage water and extending the service life of the foam.

[0017] Furthermore, the upper cover assembly includes an upper cover inner wall and an upper cover outer wall, and a receiving cavity for receiving the foam is provided in the upper cover inner wall.

[0018] The beneficial effect of adopting the above further solution is that the accommodating cavity is used to accommodate and fix the foam, thereby avoiding displacement during the filtration process and affecting the control of filtration quality.

[0019] Furthermore, the upper cover assembly is also provided with a connecting hole.

[0020] The beneficial effect of adopting the above further solution is that the connecting hole facilitates the installation of the upper cover assembly.

[0021] Furthermore, the connecting seat assembly includes a connecting seat having an air flow channel through which air flows, and a sealing ring is provided between the connecting seat and the bottom of the shell assembly.

[0022] The beneficial effect of adopting the above further solution is that the connecting seat assembly is used to connect the shell assembly and the base assembly, and the sealing ring reduces air leakage.

[0023] Furthermore, the base assembly includes a base, the connecting assembly is connected to the base, and the base has a ventilation cavity.

[0024] The beneficial effect of adopting the above further solution is that the ventilation cavity facilitates the filtered air to enter the combustion chamber.

[0025] Furthermore, the connection assembly includes a connection rod connected to the base, and the connection rod passes through the airflow channel, the airflow port and the connection hole in sequence and is connected to the connection piece.

[0026] The beneficial effect of adopting the above further solution is that the connection rod and the connection piece cooperate to facilitate connecting the upper cover assembly, the shell assembly, the connection seat assembly and the base assembly into one.

[0027] Furthermore, the connecting member includes a connecting bolt, and the connecting bolt is threadedly connected to the upper end of the connecting rod.

[0028] The beneficial effect of adopting the above further solution is that the connecting bolts cooperate with the connecting rods to connect the upper cover assembly, the shell assembly, the connecting seat assembly and the base assembly into one body.

[0029] Furthermore, an upper cover sealing cover is provided between the connecting bolt and the upper cover assembly, the upper cover sealing cover is integrally formed with the upper cover assembly, and a through hole for the connecting rod to pass through is also provided on the upper cover sealing cover.

[0030] The beneficial effects of adopting the above further solution are: the upper cover sealing cover and the upper cover assembly are integrally formed, which not only reduces water seepage into the housing assembly and oil seepage out of the air filter, but also effectively prevents dust and reduces unfiltered air from directly entering the filter chamber assembly, thereby extending the service life of the engine and reducing the occurrence of engine failures. At the same time, the contact area between the connecting bolt and the upper cover assembly is increased, and the through hole is used for the connecting rod to pass through and to position the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of a universal mechanical air filter according to a specific embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of the explosion structure of a universal mechanical air filter in a specific embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of a housing assembly according to a specific embodiment of the utility model;

[0034] Figure 4 It is a schematic diagram of the structure of an upper cover assembly according to a specific embodiment of the utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Shell assembly; 2. Foam; 3. Connecting seat assembly; 4. Base assembly; 5. Upper cover assembly; 6. Inner cavity; 7. Outer cavity; 8. Connecting assembly; 9. Inner wall of shell; 10. Outer wall of shell; 11. Air flow notch; 12. Air flow port; 13. Support ribs; 14. Support gasket; 15. Outer wall of upper cover; 16. Inner wall of upper cover; 17. Accommodating cavity; 18. Connecting hole; 19. Connecting seat; 20. Sealing ring; 21. Ventilation cavity; 22. Connecting rod; 23. Connecting bolt; 24. Upper cover sealing cover; 25. Base. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] In the description of the present invention, it is necessary to understand that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a universal mechanical air filter includes a shell component 1, a foam 2, a connecting seat component 3, a base component 4 and an upper cover component 5; the shell component 1 has an inner cavity 6 and an outer cavity 7, the foam 2 is arranged in the inner cavity 6, the shell component 1 is provided with a connecting seat component 3 and a base component 4 on the lower side, the base component 4 is provided with a connecting component 8, the connecting component 8 passes through the connecting seat component 3 and the shell component 1 in sequence and is connected to the upper cover component 5; the air enters from the lower side of the outer cavity 7, flows through the foam 2, the inner cavity 6, the connecting seat component 3 in sequence, and then enters the base component 4.

[0042] The air filter involved in the utility model is mainly used for small gasoline engines, especially small gasoline engine oil bath air filters, and is widely used in 168F small bath, medium oil bath, large oil bath, 177F oil bath air filters, 188F small oil bath, large oil bath air filters, etc. In the specific working process, the air enters from the lower side of the outer cavity 7, passes through the foam 2 in turn and enters the inner cavity 6, passes through the connecting seat assembly 3 and the base assembly 4 and enters the general mechanical combustion chamber, and the air enters from the lower side of the shell assembly 1, reducing the water seepage from the upper side of the shell assembly 1, and the oil seepage in the shell assembly 1 flows out of the air filter, thereby extending the service life of the foam 2.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the shell assembly 1 is roughly cubical, and the shell assembly 1 includes a shell inner wall 9 and a shell outer wall 10. The outer cavity 7 is located between the shell inner wall 9 and the shell outer wall 10 to facilitate the entry of air from the bottom 7 of the outer cavity. The inner cavity 6 is located inside the shell inner wall 9. The height of the shell inner wall 9 is greater than the height of the shell outer wall 10. A plurality of air flow notches 11 are also provided on the shell inner wall 9 to facilitate the rapid entry of air into the inner cavity 6.

[0044] An air flow opening 12 is provided in the middle of the inner cavity 6, and the foam 2 is located between the air flow opening 12 and the inner wall 9 of the shell. The height of the side wall of the air flow opening 12 is lower than the height of the outer wall 10 of the shell. A plurality of supporting ribs 13 are provided between the air flow opening 12 and the inner wall 9 of the shell and located at the lower side of the foam 2. A supporting gasket 14 is provided between the supporting ribs 13 and the foam 2. The supporting gasket 14 is used to support the foam 2 to avoid direct contact between the bottom of the foam 2 and the bottom of the inner cavity 6, so that the cavity formed between the lower side of the supporting gasket 14 and the inner cavity 6 is used to temporarily accommodate stored seepage water and seepage oil, reduce the contact between the seepage water and seepage oil and the foam 2, and extend the service life of the foam 2.

[0045] like Figure 1 , Figure 2 and Figure 4As shown, in another embodiment, the upper cover assembly 5 includes an upper cover inner wall 16 and an upper cover outer wall 15, and the upper cover inner wall 16 and the upper cover outer wall 15 are respectively arranged to cooperate with the shell inner wall 9 and the shell outer wall 10, and a accommodating cavity 17 for accommodating the foam 2 is arranged in the upper cover inner wall 16, and the accommodating cavity 17 is used to accommodate the limiting foam 2. A connecting hole 18 is also arranged on the upper cover assembly 5, and the connecting hole 18 is used to connect the upper cover assembly 5 with the shell assembly 1.

[0046] like Figure 1 , Figure 2 As shown, in one embodiment, the connecting seat assembly 3 includes a connecting seat 19, which is mainly used to connect the shell assembly 1 and the base assembly 4. The connecting seat 19 has an air flow channel for air to flow through, and the air flow channel is connected to the air flow port 12. A sealing ring 20 is arranged between the connecting seat 19 and the bottom of the shell assembly 1. The sealing ring 20 reduces the leakage of filtered air and enhances the sealing of the air filter.

[0047] like Figure 1 , Figure 2 As shown, in this embodiment, the base assembly 4 includes a base 25, and the base 25 is provided with a connecting portion and a connecting component connected to a general machine. The base 25 has a ventilation cavity 21, and the two ends of the ventilation cavity 21 are respectively connected to the air flow channel and the combustion chamber. The connecting assembly 8 is connected to the base 25, and the connecting assembly 8 is used to connect the base assembly 4, the connecting seat assembly 3, the shell assembly 1 and the upper cover assembly 5 into one.

[0048] Specifically, the connecting assembly 8 includes a connecting rod 22 connected to the base 25, and the connecting rod 22 passes through the airflow channel, the airflow port 12 and the connecting hole 18 in sequence and is connected to the connecting member. In this embodiment, the connecting member includes a connecting bolt 23, and the connecting bolt 23 can be a butterfly nut. The connecting rod 22 is provided with a connecting thread that matches the butterfly nut. The connecting bolt 23 is threadedly connected to the upper end of the connecting rod 22, and an upper cover sealing cover 24 is provided between the connecting bolt 23 and the upper cover assembly 5. The upper cover sealing cover 24 and the upper cover assembly 5 can be integrally formed by injection molding. The upper cover sealing cover 24 is integrally formed with the upper cover assembly 5, which not only prevents water seepage, unfiltered dust and air from entering the shell assembly 1 to contaminate the foam 2, and the oil seepage in the shell assembly 1 flows out of the air filter to cause oil leakage, but also increases the contact area between the connecting bolt 23 and the upper cover assembly 5, avoids stress concentration of the upper cover assembly 5, prolongs the service life of the upper cover assembly 5, and makes the base assembly 4, the connecting seat assembly 3, the shell assembly 1 and the upper cover assembly 5 connected as a whole to be firmly connected. The upper cover sealing cover 24 is also provided with a through hole for the connecting rod 22 to pass through. The through hole on the upper cover sealing cover 24 is used for the connecting rod 22 to pass through and to position the connecting rod 22. The through hole and the connecting rod 22 can be tightly fitted to reduce water or oil seepage from the gap between the connecting rod 22 and the through hole into the shell assembly 1.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal mechanical air filter, characterized in that: It comprises a shell assembly (1), foam (2), a connecting seat assembly (3), a base assembly (4) and an upper cover assembly (5); The shell component (1) has an inner cavity (6) and an outer cavity (7), the foam (2) is arranged in the inner cavity (6), the connecting seat component (3) and the base component (4) are arranged on the lower side of the shell component (1), the base component (4) has a connecting component (8), and the connecting component (8) passes through the connecting seat component (3) and the shell component (1) in sequence and is connected to the upper cover component (5); Air enters from the lower side of the outer cavity (7), flows through the foam (2), the inner cavity (6), the connecting seat assembly (3) in sequence, and then enters the base assembly (4).

2. The universal mechanical air filter according to claim 1, characterized in that: The shell assembly (1) comprises a shell inner wall (9) and a shell outer wall (10), the outer cavity (7) is located between the shell inner wall (9) and the shell outer wall (10), the inner cavity (6) is located inside the shell inner wall (9), the height of the shell inner wall (9) is greater than the height of the shell outer wall (10), and a plurality of airflow notches (11) are also provided on the shell inner wall (9).

3. The universal mechanical air filter according to claim 2, characterized in that: The inner cavity (6) has an air flow opening (12) in the middle, the foam (2) is located between the air flow opening (12) and the inner wall (9) of the shell, a plurality of supporting ribs (13) are provided between the air flow opening (12) and the inner wall (9) of the shell and located under the foam (2), and a supporting gasket (14) is provided between the supporting ribs (13) and the foam (2).

4. The universal mechanical air filter according to claim 3, characterized in that: The upper cover assembly (5) comprises an upper cover inner wall (16) and an upper cover outer wall (15), and a receiving cavity (17) for receiving the foam (2) is provided in the upper cover inner wall (16).

5. The universal mechanical air filter according to claim 4, characterized in that: The upper cover assembly (5) is also provided with a connection hole (18).

6. The universal mechanical air filter according to claim 5, characterized in that: The connection seat assembly (3) comprises a connection seat (19), the connection seat (19) having an air flow channel through which air flows, and a sealing ring (20) is provided between the connection seat (19) and the bottom of the housing assembly (1).

7. The universal mechanical air filter according to claim 6, characterized in that: The base assembly (4) comprises a base (25), the connection assembly (8) is connected to the base (25), and the base (25) has a ventilation cavity (21).

8. The universal mechanical air filter according to claim 7, characterized in that: The connecting assembly (8) comprises a connecting rod (22) connected to the base (25), wherein the connecting rod (22) passes through the air flow channel, the air flow port (12) and the connecting hole (18) in sequence and is connected to a connecting piece.

9. The universal mechanical air filter according to claim 8, characterized in that: The connecting member comprises a connecting bolt (23), and the connecting bolt (23) is threadedly connected to the upper end of the connecting rod (22).

10. The universal mechanical air filter according to claim 9, characterized in that: An upper cover sealing cover (24) is provided between the connecting bolt (23) and the upper cover assembly (5); the upper cover sealing cover (24) and the upper cover assembly (5) are integrally formed; and a through hole for the connecting rod (22) to pass through is also provided on the upper cover sealing cover (24).

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