Filter element

Abstract

The utility model belongs to the technical field of filter element manufacturing, and particularly relates to a filter element which comprises a main filter element body and an auxiliary filter element body, the main filter element body and the auxiliary filter element body are each of a hollow structure, the auxiliary filter element body is coaxially arranged in the main filter element body, and the outer circumferential face of one end of the auxiliary filter element body is connected with the inner circumferential face of one end of the main filter element body in a sealed mode. One end, which is not connected with the main filter element, of the auxiliary filter element is sealed, and the main filter element is internally connected with the auxiliary filter element through a supporting structure; according to the filter element, the auxiliary filter element is arranged in the main filter element through the supporting structure, so that filtered liquid or gas can enter the main filter element from the outer circumferential surface of the main filter element and can also enter the main filter element from the inner circumferential surface of the auxiliary filter element, and the area of the liquid or gas entering the main filter element is increased; the problem of how to increase the area of liquid or gas entering the main filter element under the condition that the volume of the filter element is not increased is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of filter element manufacturing, and specifically relates to a filter element. Background Art

[0002] In a traditional filter element, turbid airflow or liquid enters the filter element from its outer circumference, and then after being filtered by the filter element, the filtered liquid or airflow flows out from the end face of the filter element. However, in this method, one end of a general filter element is sealed, so the liquid or gas that can enter the filter element can only enter through the outer circumference of the filter element, and the area of ​​entry is constant. In other words, without increasing the volume of the filter element, the filtering effect of the filter element is not fully utilized. Utility Model Content

[0003] The purpose of this application is mainly to address the shortcomings of the prior art. A filter element is designed by setting a safety filter element in the main filter element through a supporting structure, so that the filtered liquid or gas can enter the main filter element from the outer circumferential surface of the main filter element and also enter the main filter element from the inner circumferential surface of the auxiliary filter element, thereby increasing the area for liquid or gas to enter the main filter element, solving the problem of how to increase the area for liquid or gas to enter the main filter element without increasing the volume of the filter element.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is:

[0005] A filter element comprises a main filter element and an auxiliary filter element, wherein the main filter element and the auxiliary filter element are both hollow structures, the auxiliary filter element is coaxially arranged in the main filter element, the outer circumferential surface of one end of the auxiliary filter element is respectively tightly connected with the inner circumferential surface of one end of the main filter element, the end of the auxiliary filter element not connected to the main filter element is sealed, and the main filter element is connected to the auxiliary filter element through a supporting structure.

[0006] Preferably, the outer side of the support structure is connected to the inner side of the main filter element, the inner side of the support structure is connected to the outer side of the auxiliary filter element, and the support structure is provided with a filter net covering the inner circumference of the main filter element and the outer circumference of the auxiliary filter element.

[0007] Preferably, the support structure is an annular structure, and the support structure is coaxially arranged in the main filter element. A plurality of U-shaped support frames are arranged in the support structure, and an open end of the U-shaped support frame faces an end of the auxiliary filter element connected to the main filter element, and the auxiliary filter element is located on the U-shaped inner wall of the U-shaped support frame and is fixedly connected.

[0008] Preferably, it also includes a mounting plate, a screw hole is provided on the end surface of the supporting structure facing the end connected to the main filter element, a through hole is provided on the mounting plate to match the screw hole, a bolt passes through the mounting plate and is threadedly connected to the screw hole, a side of the mounting plate facing the supporting structure is tightly connected to the end of the auxiliary filter element facing the screw hole and the end of the main filter element facing the screw hole, and an air intake channel connected to the interior of the auxiliary filter element is provided on the mounting plate.

[0009] Preferably, an annular protective cover is provided on the end surface of the main filter element at one end not connected to the auxiliary filter element.

[0010] Preferably, the annular protective cover is fixedly connected to the supporting structure, and the annular protective cover is coaxial with the main filter element.

[0011] Preferably, the filter mesh is a metal mesh or a plastic mesh.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] 1. The present application adopts a method of arranging a safety filter element in the main filter element through a supporting structure, and designs a filter element, so that the filtered liquid or gas can enter the main filter element from the outer circumferential surface of the main filter element and can also enter the main filter element from the inner circumferential surface of the auxiliary filter element, thereby increasing the area for liquid or gas to enter the main filter element, and solving the problem of how to increase the area for liquid or gas to enter the main filter element without increasing the volume of the filter element.

[0014] 2. After the filter net is installed in the present application, the liquid or gas entering the whole composed of the main filter element and the auxiliary filter element is filtered twice, the first time is the main filter element or the auxiliary filter element, and the other time is the filter net, so that the end of the main filter element located at the end where the auxiliary filter element is connected does not need to be provided with other filtering devices, so that the liquid or gas entering the whole composed of the main filter element and the auxiliary filter element can be filtered twice.

[0015] 3. The present application provides a U-shaped support frame to facilitate installation of the auxiliary filter element in the main filter element, while limiting the position of the auxiliary filter element relative to the main filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 It is a structural schematic diagram on the back of the figure;

[0018] Figure 3 A cross-sectional view of the present application;

[0019] Figure 4 It is a structural schematic diagram of the iron frame in this application.

[0020] Among them, 1. main filter element; 2. auxiliary filter element; 3. supporting structure; 4. filter screen; 5. U-shaped support frame; 6. mounting plate; 7. bolts; 8. annular protective cover. DETAILED DESCRIPTION

[0021] like Figure 1-4 As shown, a filter element includes a main filter element 1 and an auxiliary filter element 2, wherein the main filter element 1 and the auxiliary filter element 2 are both hollow structures, the auxiliary filter element 2 is coaxially arranged in the main filter element 1, the outer circumference of one end of the auxiliary filter element 2 is respectively tightly connected with the inner circumference of one end of the main filter element 1, the end of the auxiliary filter element 2 not connected to the main filter element is sealed, and the main filter element 1 is connected to the auxiliary filter element 2 through a supporting structure.

[0022] In this embodiment, when in use, a portion of the filtered liquid or gas enters the main filter element 1 from the outer circumferential surface of the main filter element 1, and another portion of the liquid or gas enters the auxiliary filter element 2 from the end of the auxiliary filter element 2 connected to the main filter element 1, and then enters the main filter element 1 through the side wall of the auxiliary filter element 2, and then flows out from the end of the main filter element 1 connected to the auxiliary filter element 2. After such a design, the overall filtering area composed of the main filter element 1 and the auxiliary filter element 2 is the sum of the outer circumferential area of ​​the main filter element 1 and the inner circumferential surface of the auxiliary filter element 2; thus solving the problem of how to increase the area of ​​the liquid or gas entering the main filter element 1 without increasing the volume of the filter element. The support structure is provided only to limit the relative position between the main filter element 1 and the auxiliary filter element 2.

[0023] As a preferred embodiment, the outer side of the support structure 3 is connected to the inner side of the main filter element 1, and the inner side of the support structure 3 is connected to the outer side of the auxiliary filter element 2. The support structure 3 is provided with a filter screen 4 covering the inner peripheral surface of the main filter element 1 and the outer peripheral surface of the auxiliary filter element 2. After the filter screen 4 is provided, the liquid or gas entering the integral body composed of the main filter element 1 and the auxiliary filter element 2 is filtered twice, the first time by the main filter element 1 or the auxiliary filter element 2, and the other time by the filter screen 4. As a result, the end of the main filter element 1 located at the end connected to the auxiliary filter element 2 does not need to be provided with other filtering devices, so that the liquid or gas entering the integral body composed of the main filter element 1 and the auxiliary filter element 2 can be filtered twice.

[0024] As a preferred mode, the support structure 3 is an annular structure, the support structure 3 is coaxially arranged in the main filter element 1, and a plurality of U-shaped support frames 5 are arranged in the support structure 3, the open end of the U-shaped support frame 5 is opposite to the end of the auxiliary filter element 2 connected to the main filter element, and the auxiliary filter element 2 is located at the U-shaped inner wall of the U-shaped support frame 5 and fixedly connected. The setting of the U-shaped support frame 5 facilitates the installation of the auxiliary filter element 2 in the main filter element 1, and at the same time limits the position of the auxiliary filter element 2 relative to the main filter element 1, and at the same time, the U-shaped support frame 5 also plays the role of fixing the filter screen 4 on the outer peripheral surface of the auxiliary filter element 2. That is, the filter screen 4 on the inner peripheral surface of the main filter element 1 is sandwiched between the support structure 3 and the main filter element 1, and the filter screen 4 on the outer peripheral surface of the auxiliary filter element 2 is sandwiched between the U-shaped inner surface of the U-shaped support frame 5 and the outer peripheral surface of the auxiliary filter element 2.

[0025] As a preferred mode, it further comprises a mounting plate 6, a screw hole is provided on the end surface of the supporting structure 3 facing the end connected to the main filter element 1, a through hole is provided on the mounting plate 6 to match the screw hole, a bolt 7 passes through the mounting plate 6 and is threadedly connected to the screw hole, a side of the mounting plate 6 facing the supporting structure 3 is tightly connected to the end of the auxiliary filter element 2 facing the screw hole and the end of the main filter element 1 facing the screw hole, and an air inlet channel connected to the interior of the auxiliary filter element 2 is provided on the mounting plate 6. The setting of the mounting plate 6 prevents unfiltered liquid or gas from entering the interior of the main filter element 1 from the gap between the main filter element 1 and the auxiliary filter element 2.

[0026] As a preferred embodiment, an annular protective cover 8 is provided on the end surface of the main filter element 1 that is not connected to the auxiliary filter element 2. The annular protective cover 8 is provided in this way to protect the filter paper of the main filter element 1.

[0027] As a preferred manner, the annular protective cover 8 is fixedly connected to the supporting structure, and the annular protective cover 8 is coaxial with the main filter element 1 .

[0028] As a preferred embodiment, the filter screen 4 is a metal screen or a plastic screen.

Claims

1. A filter element, characterized in that: The invention comprises a main filter element (1) and an auxiliary filter element (2), wherein the main filter element (1) and the auxiliary filter element (2) are both hollow structures, the auxiliary filter element (2) is coaxially arranged in the main filter element (1), the outer peripheral surface of one end of the auxiliary filter element (2) is respectively tightly connected to the inner peripheral surface of one end of the main filter element (1), the end of the auxiliary filter element (2) not connected to the main filter element is sealed, and the main filter element (1) is connected to the auxiliary filter element (2) via a supporting structure.

2. A filter element according to claim 1, characterized in that: The outer side of the support structure (3) is connected to the inner side of the main filter element (1), and the inner side of the support structure (3) is connected to the outer side of the auxiliary filter element (2). The support structure (3) is provided with a filter net (4) covering the inner peripheral surface of the main filter element (1) and the outer peripheral surface of the auxiliary filter element (2).

3. A filter element according to claim 2, characterized in that: The support structure (3) is an annular structure. The support structure (3) is coaxially arranged in the main filter element (1). A plurality of U-shaped support frames (5) are arranged in the support structure (3). An open end of the U-shaped support frame (5) faces an end of the auxiliary filter element (2) connected to the main filter element. The auxiliary filter element (2) is fixedly connected to a U-shaped inner wall located on the U-shaped support frame (5).

4. A filter element according to claim 2, characterized in that: It also includes a mounting plate (6), a screw hole is provided on the end surface of the support structure (3) facing the end connected to the main filter element (1), a through hole is provided on the mounting plate (6) that matches the screw hole, a bolt (7) passes through the mounting plate (6) and is threadedly connected to the screw hole, a side of the mounting plate (6) facing the support structure (3) is tightly connected to the end of the auxiliary filter element (2) facing the screw hole and the end of the main filter element (1) facing the screw hole, and an air intake channel is provided on the mounting plate (6) that is connected to the interior of the auxiliary filter element (2).

5. A filter element according to claim 1, characterized in that: An annular protective cover (8) is provided on the end surface of the main filter element (1) at the end not connected to the auxiliary filter element (2).

6. A filter element according to claim 5, characterized in that: The annular protective cover (8) is fixedly connected to the supporting structure, and the annular protective cover (8) is coaxial with the main filter element (1).

7. A filter element according to claim 2, characterized in that: The filter screen (4) is a metal screen or a plastic screen.

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