Oil filter type air filter

Abstract

The utility model relates to the technical field of general mechanical parts, in particular to an oil filter type air filter which comprises a filter shell, an upper cover, a filter element and a connecting base. One end of the filter shell is rotationally connected with one end of the upper cover, the other end of the upper cover is connected with the other end of the filter shell in a buckling manner through a connecting assembly, and the lower end of the filter shell is connected with the connecting base; the filter shell is provided with an air inlet cavity and an oil filtering cavity, the filter element is located in the oil filtering cavity, and air enters the connecting base from the lower side of the air inlet cavity, passes through the filter element and then enters the connecting base. According to the utility model, filter oil can be quickly added or replaced, and the service life of the filter element is prolonged; and meanwhile, the top of the upper cover is free of screw fixing holes and forms an integral surface, so that water and unfiltered air can be prevented from directly entering a clean air cavity of the air filter, the water and the unfiltered air are prevented from directly entering an engine, engine faults are effectively prevented, and the service life of the engine is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to general mechanical parts technical field, especially a kind of oil filter type air filter. BACKGROUND

[0002] Air filter, mainly refers to air filter, is used to filter the air entering engine, to prevent dust, impurities etc. into the engine combustion chamber device, it is important to the normal work and life of engine.

[0003] Oil filter type air filter, also known as wet type air filter, is a kind of filter system using oil bath to capture impurities in air, oil filter type air filter usually contains a container filled with oil, air will first pass through this oil bath before entering engine, oil filter type air filter can very effectively capture small to micron level particles, provide higher filtration efficiency than dry type air filter. At present, the market is all paper filter core structure, paper filter core is easy to absorb water or wet after losing its function of filtering air, at the same time, air filter upper cover adopts screw locking, and it is inconvenient to operate when replacing filter oil or adding filter oil, which affects the use efficiency of oil filter.

[0004] Therefore, the person skilled in the art is committed to developing an oil filter type air filter, which is beneficial to quickly adding or replacing filter oil and prolonging the service life of filter core. CONTENT OF THE UTILITY MODEL

[0005] The utility model solves the technical problem to provide an oil filter type air filter, which is beneficial to quickly adding or replacing filter oil and prolonging the service life of filter core.

[0006] The technical scheme for solving the above technical problem of the utility model is as follows:

[0007] An oil filter type air filter, comprising a filter housing, an upper cover, a filter core and a connecting base;

[0008] One end of the filter housing is rotatably connected to one end of the upper cover, and the other end of the upper cover and the other end of the filter housing are connected by a connecting assembly.

[0009] The filter housing has an air inlet cavity and an oil filter cavity, the filter core is located in the oil filter cavity, and air enters the connecting base after passing through the filter core from the lower side of the air inlet cavity.

[0010] The beneficial effects of the above scheme are that the filter shell and the upper cover are connected through the connecting assembly, which is convenient for quickly opening the upper cover to add oil or replace the filter, air enters from the lower side of the air inlet cavity, and the purity of the air is improved after being filtered by the filter oil and the filter element, thereby reducing impurities entering the combustion chamber and prolonging the service life of the internal combustion engine, and part of the filter oil enters the combustion chamber along with the air, thereby enhancing the lubrication of the combustion chamber and reducing the wear rate of the moving parts.

[0011] Based on the above technical scheme, the utility model further can make improvement as follows.

[0012] Further, the filter shell side wall is provided with a rotating shaft, the upper cover side wall is provided with a rotating sleeve matched with the rotating shaft, and the rotating shaft and the rotating sleeve are matched to rotate the upper cover around the rotating shaft.

[0013] The beneficial effects of the above further scheme are that the rotating shaft and the rotating sleeve are matched to rotate the upper cover around the rotating shaft, thereby facilitating the opening of the upper cover for adding or replacing the filter oil.

[0014] Further, the filter shell is further provided with a partition cavity, and the partition cavity, the filter oil cavity and the air inlet cavity are separated by a partition plate.

[0015] The beneficial effects of the above further scheme are that the partition plate separates the partition cavity, the filter oil cavity and the air inlet cavity, thereby reducing mutual interference.

[0016] Further, the connecting assembly comprises a buckle arranged on the upper cover side wall, and the filter shell is provided with a clamping portion matched with the buckle for connection, and the clamping portion is arranged on the partition cavity side wall.

[0017] The beneficial effects of the above further scheme are that the upper cover and the filter shell are connected through the buckle and the clamping portion, and the upper cover is quickly opened.

[0018] Further, the filter element is a foam filter element and is in a hollow cylindrical shape, and a mounting hole is arranged at the center of the filter element.

[0019] The beneficial effects of the above further scheme are that the filter element is an oil filter foam filter element, thereby avoiding water absorption or wetting to lose the air filtering function.

[0020] Further, an air passage is arranged in the middle of the filter oil cavity, a plurality of support plates for supporting the filter element are arranged on the outer wall of the air passage, and grooves for filter oil flow are further arranged on the support plates.

[0021] The beneficial effect of the further scheme is that the support plate is used for supporting the filter element, avoiding the bottom of the filter element from directly contacting with the oil filter, improving the air filtering efficiency and prolonging the service life of the filter element; and the grooves are beneficial to the mutual flow of the oil filter in the filter shell in the cavity.

[0022] Further, the upper cover is provided with a containing cavity for containing the filter element.

[0023] The beneficial effect of the further scheme is that the containing cavity is used for limiting and fixing the filter element, avoiding the filter element from shaking and shifting during work.

[0024] Further, the containing cavity is provided with a limiting piece for limiting the filter element in the middle part, and the limiting piece is arranged in the mounting hole.

[0025] The beneficial effect of the further scheme is that the limiting piece is used for not only supporting the foam but also preventing the foam from sliding upward.

[0026] Further, the connecting base is provided with an air flow cavity for air flow, the air flow cavity is communicated with the air passage, and a sealing piece is arranged between the connecting base and the filter shell.

[0027] The beneficial effect of the further scheme is that the sealing piece reduces the leakage of the filtered air, and enhances the sealing performance of the air filter.

[0028] Further, the connecting base is provided with a mounting part.

[0029] The beneficial effect of the further scheme is that the mounting part is beneficial to mounting the air filter at a suitable position of the internal combustion engine. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic view of the oil filter type air filter according to an embodiment of the present application;

[0031] Figure 2 It is an explosion structure schematic view of the oil filter type air filter according to an embodiment of the present application;

[0032] Figure 3 It is a structure schematic view of the filter shell according to an embodiment of the present application;

[0033] Figure 4 It is a structure schematic view of the upper cover according to an embodiment of the present application.

[0034] In the drawings, the components represented by the numbers are listed as follows:

[0035] 1, filter housing; 2, upper cover; 3, filter element; 4, connecting base; 5, connecting assembly; 6, air inlet cavity; 7, oil filter cavity; 8, rotating shaft; 9, rotating sleeve; 10, partition cavity; 11, partition plate; 12, buckle; 13, buckling part; 14, air cavity; 15, support plate; 16, groove; 17, containing cavity; 18, limiting piece; 19, air flow cavity; 20, mounting portion. DETAILED DESCRIPTION

[0036] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not intended to limit the scope of the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the systems or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , an oil filter type air filter includes a filter housing 1, an upper cover 2, a filter element 3 and a connecting base 4; one end of the filter housing 1 is rotatably connected with one end of the upper cover 2, the other end of the upper cover 2 and the other end of the filter housing 1 are connected by a connecting assembly 5, and the lower end of the filter housing 1 is connected with the connecting base 4; the filter housing 1 has an air inlet cavity 6 and an oil filter cavity 7, the filter element 3 is located in the oil filter cavity 7, and air enters from the lower side of the air inlet cavity 6, passes through the filter element 3 and then enters into the connecting base 4.

[0041] The utility model discloses, filter casing 1 and upper cover 2 are connected through connecting assembly 5 buckle connection between, benefit is quick to open upper cover 2 and is added to air filter oil or replaces filter oil, air enters from the lower side of air inlet cavity 6, improves the purity of air after filter oil and filter core 3 filtration, reduces the impurity and enters to the combustion chamber, prolongs the service life of internal combustion engine, part filter oil enters to the combustion chamber with air, enhances the lubrication of combustion chamber, reduces the wear rate of movable part.

[0042] As Figure 1 , Figure 2 and Figure 3 Indicated, some embodiments, filter core 3 is oil filter foam filter core and presents hollow cylindrical shape, and installation hole is set up in the center of filter core 3. Specifically, filter core 3 uses oil filter foam filter core, avoids water absorption or wet after losing its function of filtering air, and installation hole is beneficial to the fixation of filter core 3. Filter casing 1 is made of transparent material, which is beneficial to the observation of the filter core 3 and filter oil inside. A vent chamber 14 is installed in the middle of the filter oil cavity 7, the bottom of the vent chamber 14 has a plurality of air holes, and a plurality of support plates 15 for supporting the filter core 3 are uniformly arranged on the outer wall of the vent chamber 14. The support plates 15 are arranged in a circular pattern, which facilitates the uniform force support of the hollow cylindrical filter core 3. At the same time, the support plates 15 prevent the bottom of the filter core 3 from directly contacting the filter oil, which reduces the filtering efficiency of the filter core 3. In order to facilitate the flow of filter oil in the filter oil cavity 7, grooves 16 for filter oil flow are also provided on the support plates 15.

[0043] As Figure 1 , Figure 2 , Figure 3 and Figure 4 Indicated, another embodiment, upper cover 2 is provided with a containing cavity 17 for containing filter core 3, the containing cavity 17 can be clearance fit or tight fit with the filter core 3, the containing cavity 17 is provided with a limiting piece 18 for limiting the filter core 3 in the middle, the limiting piece 18 is arranged in the installation hole of the filter core 3. In this embodiment, the limiting piece 18 is in a hollow cylindrical shape, a plurality of support plates for supporting foam are uniformly arranged on the outer side of the hollow cylindrical shape, and a plurality of limiting pieces are uniformly arranged on the upper end of the hollow cylindrical shape. The inner side of the foam 3 abuts against the outer side of the limiting piece, the limiting piece and the containing cavity 17 cooperate to fix the foam, the middle of the limiting piece 18 is a filtering air cavity, the filter core 3 is limited and fixed by the limiting piece 18 and the containing cavity 17, which not only supports the foam, but also prevents the foam from sliding upward. At the same time, the limiting piece 18 prevents the deformation of the side wall of the upper cover 2 during injection molding. Since the upper cover 2 has no screw rod fixing hole on the top and forms a whole surface on the top, it can prevent water and unfiltered air from directly entering the air filter clean air cavity, thereby avoiding direct entry into the engine and effectively preventing engine failure and effectively prolonging the service life of the engine.

[0044] As Figure 1 , Figure 2 , Figure 3 andFigure 4 As shown, in the embodiment, the filter housing 1 is provided with a rotating shaft 8 mounted on the side wall, and the upper cover 2 is provided with a rotating sleeve 9 matched with the rotating shaft 8, and the rotating shaft 8 is matched with the rotating sleeve 9 to rotate the upper cover 2 around the rotating shaft 8, so as to facilitate opening the upper cover 2 to replace the filter element 3 and add or replace the oil filter. The filter housing 1 is further provided with a partition cavity 10, and the partition cavity 10, the oil filter cavity 7 and the air inlet cavity 6 are separated by a partition plate 11.

[0045] In the embodiment, the connecting assembly 5 includes a buckle 12 arranged on the side wall of the upper cover 2, and the filter housing 1 is provided with a clamping portion 13 matched with the buckle 12, and the clamping portion 13 is arranged on the side wall of the partition cavity 10, and the upper cover 2 and the filter housing 1 are connected through the buckle 12 and the clamping portion 13, and the upper cover 2 is facilitated to be quickly opened.

[0046] The connecting base 4 is provided with an air flow cavity 19 for air flow, and the air flow cavity 19 is communicated with the air passage cavity 14, and the air filtered by the filter element 3 enters into the combustion chamber of the internal combustion engine in sequence through the air passage cavity 14 and the air flow cavity 19, and the connecting base 4 and the filter housing 1 are further provided with a sealing element, and the sealing element can be a rubber sealing element, and the sealing element reduces the leakage of the filtered air and increases the sealing performance of the air filter. The connecting base 4 is further provided with a mounting portion 20, and the mounting portion 20 facilitates mounting the air filter at a suitable position of the internal combustion engine.

[0047] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0048] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An oil- bath air filter, characterized by: It comprises a filter shell (1), an upper cover (2), a filter core (3) and a connecting base (4); One end of the filter shell (1) is rotatably connected with one end of the upper cover (2), the other end of the upper cover (2) and the other end of the filter shell (1) are connected through a connecting assembly (5), and the lower end of the filter shell (1) is connected with the connecting base (4); The filter shell (1) has an air inlet cavity (6) and an oil filter cavity (7), the filter core (3) is located in the oil filter cavity (7), and air enters the connecting base (4) from the lower side of the air inlet cavity (6) after passing through the filter core (3).

2. The oil- bath air filter of claim 1, wherein: A rotating shaft (8) is installed on the side wall of the filter shell (1), a rotating sleeve (9) matched with the rotating shaft (8) is arranged on the side wall of the upper cover (2), and the rotating shaft (8) and the rotating sleeve (9) are matched to rotatably connect the upper cover (2) around the rotating shaft (8).

3. The oil- bath air filter of claim 1, wherein: The filter shell (1) is further provided with a partition cavity (10), and the partition cavity (10), the oil filter cavity (7) and the air inlet cavity (6) are separated by a partition plate (11).

4. The oil- bath air filter of claim 3, wherein: The connecting assembly (5) comprises a buckle (12) arranged on the side wall of the upper cover (2), and a clamping portion (13) matched with the buckle (12) is arranged on the filter shell (1), and the clamping portion (13) is arranged on the side wall of the partition cavity (10).

5. The oil- bath air filter of claim 1, wherein: The filter core (3) is an oil filter foam core and is in a hollow cylindrical shape, and a mounting hole is arranged at the center of the filter core (3).

6. The oil- bath air filter of claim 3, wherein: An air passage (14) is installed in the middle of the oil filter cavity (7), a plurality of support plates (15) for supporting the filter core (3) are uniformly arranged on the outer wall of the air passage (14), and grooves (16) for oil filtering flow are further arranged on the support plates (15).

7. The oil- bath air filter of claim 5, wherein: The upper cover (2) is provided with a containing cavity (17) for containing the filter core (3).

8. The oil- bath air filter of claim 7, wherein: A limiting piece (18) for limiting the filter core (3) is arranged in the middle of the containing cavity (17), and the limiting piece (18) penetrates the mounting hole.

9. The oil- bath air filter of claim 6, wherein: An air flow cavity (19) for air flow is arranged on the connecting base (4), the air flow cavity (19) is communicated with the air passage (14), and a sealing piece is further arranged between the connecting base (4) and the filter shell (1).

10. The oil- bath air filter of claim 9, wherein: The connecting base (4) further has a mounting portion (20).

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