Novel straight-flow type air filter element and air filter

Abstract

The utility model discloses a novel straight-flow type air filter element, belongs to the technical field of air filters, and solves the problem that when an existing air filter element is assembled, a filter element bag is prone to dislocation, so that the performance is reduced. The filter element comprises a filter element bag and an upper end cover, the upper end cover is arranged at the air inlet end of the filter element bag in a sleeving mode, the upper end cover comprises an upper cover body, the inner wall of the upper cover body is provided with a turned-over edge protruding inwards, and a plurality of limiting ribs arranged at intervals are arranged on the side, facing the filter element bag, of the turned-over edge. According to the straight-flow type air filter element disclosed by the utility model, the upper end cover and the filter element bag can be conveniently assembled, and the filtering effect and the service life of the air filter element are ensured. The utility model further discloses a novel straight-flow type air filter. The straight-flow type air filter disclosed by the utility model can be used for better filtering impurities in air.

Description

Technical Field

[0001] The utility model relates to an air filter, and more specifically, to a new type of direct-flow air filter element and an air filter. Background Art

[0002] Due to the advantages of compact structure and high filtration efficiency, the direct-flow air filter element occupies an increasing share in the market. The existing direct-flow air filter element usually includes a filter element package, a PU seal, an upper end cover, and a lower end cover. The production process is usually that the PU seal is fixed to the upper end cover by pouring, and then the upper end cover and the lower end cover are bonded to the filter element package to form a complete filter element.

[0003] In the existing direct-flow air filter element, such as the filter element for an air filter assembly disclosed in the publication number: CN105555389 B, the position of the upper end cover corresponding to the filter element package is generally a hollow structure, and there is no limiting structure above the filter element package. Since the upper end cover is buckled on the air inlet end of the filter element package after injecting glue, there is a certain friction between the two. During the assembly process, if the technology is not mastered well, it is easy to cause misalignment of the outer edge of the filter element package, resulting in problems such as uneven air inlet end face of the filter element package and bulging of the outer wall of the filter element package, which not only affects the filtration effect of the air filter element but also its service life.

[0004] Therefore, it is urgent to design a new type of direct-flow air filter element and an air filter to solve the above technical problems. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is aimed at the above deficiencies of the prior art. One of its purposes is to provide a new type of direct-flow air filter element that can facilitate the assembly of the upper end cover and the filter element package and ensure the filtration effect and service life of the air filter element.

[0006] The second purpose is to provide a new type of direct-flow air filter that can better filter impurities in the air.

[0007] The first technical solution of the utility model is as follows: A new type of direct-flow air filter element includes a filter element package and an upper end cover. The upper end cover is sleeved on the air inlet end of the filter element package. The upper end cover includes an upper cover body. An inwardly protruding flanging is provided on the inner wall of the upper cover body. A plurality of spaced limiting ribs are provided on the side of the flanging facing the filter element package.

[0008] As a further improvement, the protruding height of the flanging is between 0.5 and 2 wave heights of the filter element package.

[0009] Furthermore, a plurality of inwardly protruding pressing ribs are also provided on the inner wall of the upper cover body below the flanging. The protruding height of the pressing ribs is less than the protruding height of the flanging.

[0010] Furthermore, the top end of each of the extrusion ribs is correspondingly connected to a limiting rib, and the inner side of the bottom of each of the extrusion ribs is a chamfer structure.

[0011] Furthermore, an outwardly protruding support plate is provided on the outer wall of the upper cover body, and a first sealing ring is provided on one side of the support plate facing the filter element package.

[0012] Furthermore, a second sealing ring is provided on the side of the support plate facing away from the filter element package.

[0013] Furthermore, a recessed relief groove is provided at the junction of the side of the support plate facing the filter element package and the upper cover body.

[0014] Furthermore, a wavy relief portion is provided on the groove back corresponding to the relief groove.

[0015] Furthermore, a plurality of reinforcing ribs connected to the upper cover body are provided in the relief groove and on the groove back of the relief groove.

[0016] A novel direct-flow air filter includes the air filter element described above.

[0017] Beneficial Effects

[0018] Compared with the prior art, the present utility model has the following advantages:

[0019] 1. For the direct-flow air filter element of the present utility model, by providing a flanging on the inner wall of the upper cover body, during the assembly process, the cooperation between the flanging and the limiting rib can be used to limit the intake end face of the filter element package, so that the intake end face of the filter element package is on a flat surface, which can facilitate the assembly of the upper end cover and the filter element package. Moreover, by using the limiting rib to contact the intake end face of the filter element package, a certain gap is formed between the outer edge of the filter element package and the flanging, and the air flow can pass through this gap, enabling the effective utilization of the outer edge of the intake end of the filter element package and ensuring the filtering effect and service life of the air filter.

[0020] 2. For the direct-flow air filter element of the present utility model, by providing a support plate on the outer wall of the upper cover body to install the first sealing ring, and using the first sealing ring to squeeze the shell of the air filter, axial sealing can be achieved. Compared with radial sealing, the axial sealing method is not easily damaged and can effectively extend the service life. At the same time, the second sealing ring provided on the support plate, which cooperates with the cover plate of the shell of the air filter for sealing, can further improve the sealing effect and prevent particulate matter from entering between the air filter and the shell. Brief Description of the Drawings

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 Schematic diagram of the main view cross-section structure of the present utility model;

[0023] Figure 3 is Figure 2 Schematic diagram of the enlarged structure at position A in;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of one side of the upper end cover in the present utility model;

[0025] Figure 5 Schematic diagram of the three-dimensional structure of the other side of the upper end cover in the present utility model.

[0026] Wherein: 1 - filter element package, 2 - upper end cover, 3 - first sealing ring, 4 - second sealing ring, 5 - lower end cover, 21 - upper cover body, 22 - flanging, 23 - limiting rib, 24 - pressing rib, 25 - support plate, 26 - relief groove, 27 - relief portion, 28 - reinforcing rib, 29 - handle, 20 - installation groove. Specific embodiments

[0027] The following further describes the present utility model with reference to specific embodiments in the drawings.

[0028] Refer to Figures 1-5 , a new type of direct-current air filter element of the present utility model includes a filter element package 1 and an upper end cover 2. Among them, the upper end cover 2 is sleeved on the air inlet end of the filter element package 1. The upper end cover 2 includes an upper cover body 21, and the upper cover body 21 is of an annular structure. An inwardly protruding flanging 22 is provided on the inner wall of the upper cover body 21. The flanging 22 is arranged annularly along the inner wall of the upper cover body 21. The flanging 22 can be perpendicular to the inner wall of the upper cover body 21 for limiting the assembly position of the filter element package 1, and at the same time can flatten the air inlet end face of the filter element package 1. On the side of the flanging 22 facing the filter element package 1, a plurality of spaced-apart limiting ribs 23 are provided. The bottom surfaces of the plurality of limiting ribs 23 are located on the same plane. The limiting ribs 23 can also be perpendicular to the bottom surface of the flanging 22. The spaced-apart limiting ribs 23 can form a gap between the outer edge of the air inlet end face of the flanging 22 and the filter element package 1, and air flow can enter from this gap into the outer edge of the air inlet end face of the filter element package 1. In this embodiment, the limiting ribs 23 are arranged in a uniform manner.

[0029] The direct-current air filter element of the utility model is provided with a flanging 22 on the inner wall of the upper cover body 21. During the assembly process, the upper cover body 21 is sleeved on the air inlet end face of the filter element package 1 until the limiting rib 23 contacts the air inlet end face of the filter element package 1, and the assembly can be completed. The cooperation of the flanging 22 and the limiting rib 23 can make the air inlet end face of the filter element package 1 on a flat surface, which is convenient for the assembly of the upper end cover 2 and the filter element package 1. Moreover, by using the limiting rib 23 to contact the air inlet end face of the filter element package 1, a certain gap is formed between the outer edge of the filter element package 1 and the flanging 22, and the air flow can pass through this gap, so that the outer edge of the air inlet end of the filter element package 1 can be effectively utilized, ensuring the filtering effect and service life of the air filter element.

[0030] Preferably, the protruding height of the flanging 22 is between 0.5 and 2 wave heights of the filter element package 1. The filter element package 1 is wound from the corresponding filter element material in the patent with the publication number: CN206853339U, and it has a corresponding wave height. In this embodiment, the height limit of the flanging is between 0.5 and 2 wave heights of the filter element package 1, which can ensure the limitation and flattening of the filter element package by the flanging and the limiting rib, and at the same time, can reduce the shielding of the outer edge of the air inlet end of the filter element package 1 by the flanging, reduce the air inlet resistance, and thus ensure the filtering effect of the air filter element.

[0031] Preferably, several inwardly protruding extrusion ribs 24 are further provided on the inner wall of the upper cover body 21 below the flanging 22. The inner sides of the several extrusion ribs 24 are on the same annular surface. The extrusion ribs 24 can also be vertically arranged with the inner wall of the upper cover body 21. The protruding height of the extrusion ribs 24 is less than the protruding height of the flanging 22, ensuring that the limiting rib 23 can contact the filter element package 1 to form a limit. In this embodiment, the extrusion ribs 24 are evenly distributed. Through the arrangement of the extrusion ribs 24, a certain space can be formed between two adjacent extrusion ribs 24. During the assembly process, a certain accommodation space can be provided for the glue, avoiding the glue from overflowing and blocking the outer edge of the air inlet end face of the filter element package 1, greatly improving the assembly accuracy, and further ensuring the filtering effect of the air filter element.

[0032] Preferably, the top end of each extrusion rib 24 is correspondingly connected to a limiting rib 23, that is, each extrusion rib 24 and the limiting rib 23 are on the same plane, so that the limiting rib 23 and the extrusion rib 24 just form a reinforcing rib, further improving the structural strength between the flanging 22 and the upper cover body 21, and at the same time being convenient for manufacturing. Moreover, the inner side of the bottom of each extrusion rib 24 is a chamfer structure, which plays a guiding role and is convenient for the upper end cover 2 to be sleeved on the filter element package 1.

[0033] Preferably, an outwardly protruding support plate 25 is provided on the outer wall of the upper cover body 21. The support plate 25 is arranged annularly along the outer wall of the upper cover body 21. A first sealing ring 3 is provided on the side of the support plate 25 facing the filter element package 1 for achieving axial sealing of the air flow, ensuring that the air flow can only enter the safety filter element or the engine through the filter element package 1. Further, a second sealing ring 4 is provided on the side of the support plate 25 facing away from the filter element package 1 for achieving secondary axial sealing of the air flow and further improving the sealing effect. Specifically, installation grooves 20 are formed on the upper and lower side surfaces of the support plate 25, and the first sealing ring 3 and the second sealing ring 4 are respectively installed in the two installation grooves 20 in an interference fit manner to realize the fixed installation of the two sealing rings. In other embodiments, the first sealing ring 3 and the second sealing ring 4 can also be pasted in the installation grooves 20 with glue to further prevent the sealing rings from falling off.

[0034] For the direct-flow air filter of the present utility model, the first sealing ring 3 is installed by providing the support plate 25 on the outer wall of the upper cover body 21. The first sealing ring 3 is used to squeeze the housing of the air filter, thereby achieving axial sealing. Compared with radial sealing, the axial sealing method is not easily damaged and can effectively extend the service life. At the same time, the second sealing ring 4 provided on the support plate 25 cooperates with the housing cover plate of the air filter for sealing, which can further improve the sealing effect and prevent particulate matter from entering between the air filter element and the housing.

[0035] Preferably, a recessed relief groove 26 is further provided at the junction of the side of the support plate 25 facing the filter element package 1 and the upper cover body 21. Since a limiting insert is provided in the housing of some air filters, in this embodiment, the relief groove 26 provided on the support plate 25 can avoid these limiting inserts, so that it can be applicable to different air filter housings and has a wider application range.

[0036] Similarly, a wavy relief portion 27 is provided on the groove back corresponding to the relief groove 26. Since a limiting block is provided in the housing cover plate of some air filters, in this embodiment, by providing the relief portion 27 on the back of the relief groove 26, these limiting blocks can be avoided, so that it can be applicable to different air filter housings and has a wider application range.

[0037] Preferably, a plurality of reinforcing ribs 28 connected to the upper cover body 21 are provided in the relief groove 26 and on the groove back of the relief groove 26. The reinforcing ribs 28 in this embodiment are arranged in a uniform distribution manner. By providing the reinforcing ribs 28, the structural strength of the upper end cover 2 can be further improved.

[0038] Preferably, a handle 29 is further provided on the top of the upper cover body 21. The handle 29 is connected to the flanging 22, which facilitates the installation of the entire air filter element into or removal from the housing. Further, the flanging 22, the limiting rib 23, the pressing rib 24, the support plate 25, the relief groove 26, the relief portion 27, the handle 29 and the reinforcing rib 28 and the upper cover body 21 are of an integrally formed structure, which is convenient for manufacturing and has better structural strength.

[0039] Preferably, the direct-flow air filter element further includes a lower end cover 5. The lower end cover 5 is sleeved on the air outlet end of the filter element package 1. The lower end cover 5 is a hollow frame structure, which plays a role in supporting and protecting the filter element package 1.

[0040] A novel direct-flow air filter includes the air filter element described above. This air filter can better filter impurities in the air.

[0041] The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A novel direct-flow air filter element, comprising a filter element package (1) and an upper end cover (2), wherein the upper end cover (2) is sleeved on the air inlet end of the filter element package (1), characterized in that: The upper end cover (2) comprises an upper cover body (21), the inner wall of the upper cover body (21) is provided with an inwardly protruding flange (22), and a side of the flange (22) facing the filter element package (1) is provided with a plurality of spaced limiting ribs (23).

2. A novel direct-flow air filter element according to claim 1, characterized in that: The raised height of the flange (22) is between 0.5 and 2 times the wave height of the filter element package (1).

3. A novel direct-flow air filter element according to claim 1, characterized in that: The inner wall of the upper cover body (21) below the flange (22) is also provided with a plurality of inwardly protruding extrusion ribs (24), and the protruding height of the extrusion ribs (24) is smaller than the protruding height of the flange (22).

4. A novel direct-flow air filter element according to claim 3, characterized in that: The top end of each of the extrusion ribs (24) is correspondingly connected to a limiting rib (23), and the inner side of the bottom of each of the extrusion ribs (24) is a chamfered structure.

5. A novel direct-flow air filter element according to claim 1, characterized in that: The outer wall of the upper cover body (21) is provided with a support plate (25) protruding outwards, and a first sealing ring (3) is provided on the side of the support plate (25) facing the filter element package (1).

6. A novel direct-flow air filter element according to claim 5, characterized in that: A second sealing ring (4) is provided on the side of the support plate (25) facing away from the filter element package (1).

7. A novel direct-flow air filter element according to claim 5, characterized in that: A recessed clearance groove (26) is also provided at the connection point between the support plate (25) and the upper cover body (21) on one side facing the filter element package (1).

8. A novel direct-flow air filter element according to claim 7, characterized in that: The groove back corresponding to the said giving way groove (26) is provided with a giving way portion (27) arranged in a wave shape.

9. A novel direct-flow air filter element according to claim 8, characterized in that: A plurality of reinforcing ribs (28) connected to the upper cover body (21) are provided inside the said clearance groove (26) and at the groove back of the clearance groove (26).

10. A new type of direct current air filter, characterized in that: An air filter element comprising any one of claims 1 to 9.

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