Replacement warning type diesel filter element assembly

Abstract

The utility model discloses a replacement warning type diesel oil filter element assembly which comprises an upper end cover, filter paper, a central pipe and a lower end cover, a sealing shell is arranged on the lower end cover and at the lower end of the central pipe, oil card paper is arranged on the periphery of the filter paper, a warning line is arranged on the oil card paper, and the warning line is connected with the sealing shell. And an annular sealing gasket connected with the upper end cover is arranged at the oil outlet of the central pipe. The annular sealing gasket is provided with an arc-shaped barb structure facing the central pipe. When the filter paper is used for filtering and the water level filtered by the filter paper reaches the warning line of the oil card paper, water drainage is prompted in time, the filter element assembly is suggested to be replaced, and the filter paper has the straightness increasing capacity and the collapse preventing capacity. And the annular sealing gasket is arranged, so that the sealing performance and firmness of the connection between the filter element assembly and the oil outlet pipe are enhanced, and the annular sealing gasket is not easy to fall off. The working efficiency of the filter assembly is improved, the service life of the filter assembly is prolonged, and meanwhile the maintenance efficiency is improved.

Description

Technical Field

[0001] The invention relates to a filtering system, in particular to a diesel filter element assembly. Background Art

[0002] At present, diesel filter element assemblies are generally composed of an upper end cover, filter paper, a center tube, a lower end cover, etc. The filter paper needs to be disassembled and replaced after a certain period of use. Generally, whether to replace it is determined based on the length of use, and no automatic warning is issued. There are also problems such as inconvenient disassembly and installation of the filter element assembly and unsatisfactory sealing, which affects the working efficiency and service life of the filter assembly. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above technical deficiencies and provide a replacement warning type diesel filter element assembly with a replacement warning function and good sealing performance.

[0004] The purpose of the present invention is achieved through the following technical solution: replacing the warning type diesel filter element assembly, including an upper end cover, filter paper, a center tube, and a lower end cover, a sealing shell is installed on the lower end cover and at the lower end of the center tube, an oil card paper is installed on the periphery of the filter paper, a warning line is provided on the oil card paper, and an annular sealing gasket connected to the upper end cover is installed at the oil outlet of the center tube.

[0005] There is a color difference on the oil card paper and on the left and right sides of the warning line, which makes it easier to distinguish the warning.

[0006] The annular sealing gasket has an arc-shaped barbed structure facing the central pipe, which is more conducive to the sealing performance of the connection between the annular sealing gasket and the oil outlet pipe, and is firm and reliable.

[0007] A handle is provided on the lower end cover and above the sealing shell, which facilitates convenient installation and disassembly by hand.

[0008] An inner lining gasket and an exhaust gasket are sequentially mounted on the outer surface of the sealing shell, so as to facilitate exhaust without affecting oil leakage.

[0009] With the technical solution of this invention, the oil jam paper and its warning line provide a prompt notification that drainage is needed and that the filter element assembly needs to be replaced when the filtered water level reaches the warning line. This also enhances the straightness of the filter paper and its ability to prevent collapse. The annular sealing gasket strengthens the seal and securement of the connection between the filter element assembly and the oil outlet pipe, making it less likely to fall off. This improves the operating efficiency and lifespan of the filter assembly, while also enhancing maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the installation structure for replacing the warning type diesel filter element assembly of the present invention. DETAILED DESCRIPTION

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0012] like Figure 1 As shown, the present invention applies to a replacement warning diesel filter element assembly for a filter assembly, comprising an upper end cap 1, filter paper 2, a center tube 3, and a lower end cap 4. A sealing shell 5 is mounted on the lower end cap 4 and at the lower end of the center tube 3. An oil cardboard 6 is mounted around the filter paper 2 (located below the filter paper) and has a warning line 61 formed on it. An annular sealing gasket 7 (made of rubber) is mounted at the oil outlet of the center tube 3 and connected to the upper end cap 1. Color differences are applied to the oil cardboard 6 and on the left and right sides of the warning line 61, making it easier to distinguish the warning. A transparent cover is attached to the filter assembly to facilitate direct observation of the warning line and its color difference on the oil cardboard.

[0013] The annular sealing gasket 7 features an arc-shaped barbed structure 71 facing the center tube, which helps strengthen the seal and secure connection with the oil outlet pipe. A handle 8 is installed on the lower end cap 4, above (on the outside of) the sealing shell 5, facilitating convenient installation and removal by hand. An inner lining gasket 51 (made of non-woven fabric) and an exhaust gasket 52 (made of rubber) are sequentially installed on the outer surface of the sealing shell 5. The sealing shell 5, inner lining gasket 51, and exhaust gasket 52 all have interconnected tiny exhaust holes, facilitating exhaust without affecting oil leakage.

Claims

1. Replace the warning diesel filter element assembly, including the upper end cover, filter paper, center tube, and lower end cover, which are characterized by: A sealing shell is installed on the lower end cover and at the lower end of the central tube, an oil card is installed on the periphery of the filter paper, a warning line is provided on the oil card, and an annular sealing gasket connected to the upper end cover is installed at the oil outlet of the central tube.

2. The diesel filter element replacement warning assembly according to claim 1, characterized in that: There is a color difference on the oil card paper and on the left and right sides of the warning line.

3. The diesel filter element replacement warning assembly according to claim 1 or 2, characterized in that: The annular sealing gasket has an arc-shaped barbed structure facing the central tube.

4. The diesel filter element replacement warning assembly according to claim 1, characterized in that: A handle is arranged on the lower end cover and above the sealing shell.

5. The diesel filter element replacement warning assembly according to claim 1, characterized in that: An inner liner gasket and an exhaust gasket are sequentially installed on the outer surface of the sealing shell.

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