Sounding prompt type oil filter

Abstract

The invention discloses a sound prompt type oil filter which comprises a shell, a screw sealing plate, a filter element assembly and a bypass valve assembly, the filter element assembly comprises an upper end cover, filter paper, a lower end cover and a center pipe, the bypass valve assembly comprises a bypass valve body and a bypass valve spring, and a metal gasket connected with the bypass valve spring is installed at the bottom of the bypass valve body. The metal gasket is connected with a knocking block through a supporting block and a knocking spring in sequence, and the knocking block is adjacent to the bottom of the shell. When the service life of the filter element assembly is about to stop, the internal pressure of the oil filter is increased, the bypass valve assembly is started, the bypass valve spring drives the metal gasket, the supporting block drives the knocking spring, the knocking block can repeatedly knock the bottom of the shell to make obvious sound, and a user is reminded to maintain and replace the filter element assembly in time. And the pressure formed by removing the internal blockage is too large, so that irreversible damage to air compressor equipment, an automobile engine and the like caused by failure of the filtering system is effectively avoided. And meanwhile, the maintenance work efficiency is improved.

Description

Technical Field

[0001] The invention relates to a filtering system, in particular to an oil filter. Background Art

[0002] At present, when oil filters are used in air compressors or automobiles, their oil filter element components have a certain use limit, but there is no end-of-life reminder. Although bypass valves (single-way valves) are used to deal with it, there is still a risk of continued use causing oil pipeline blockage, pressure increase, or unclean oil entering the machine, causing irreversible damage, thereby affecting the working efficiency and service life of the application facilities (air compressors or automobiles, etc.). Summary of the invention

[0003] The purpose of the present invention is to overcome the above technical deficiencies and provide a voice prompt type oil filter which can make a sound and have the function of reminding maintenance and replacement.

[0004] The objective of the present invention is achieved through the following technical scheme: a voice prompt type oil filter, comprising an outer shell, a nut plate, a filter element assembly, and a bypass valve assembly, wherein the filter element assembly comprises an upper end cover, filter paper, a lower end cover, and a center tube, and the bypass valve assembly comprises a bypass valve body and a bypass valve spring, and a metal gasket connected to the bypass valve spring is installed at the bottom of the bypass valve body, and the metal gasket is connected to the knocking block in turn through a support block and a knocking spring, and the knocking block is adjacent to the bottom of the outer shell.

[0005] A check valve is installed on the oil outlet of the central tube of the filter element assembly and between the screw plate and the upper end cover of the filter element assembly. A rubber gasket is installed in the bottom of the bypass valve body, the rubber gasket is adjacent to the metal gasket, and the rubber gasket has a through hole for the support block to pass through.

[0006] After adopting the technical solution of the present invention, when the service life of the filter element assembly is about to end, the internal pressure of the oil filter increases, the bypass valve assembly opens, and the bypass valve spring drives the metal gasket, so that the support block drives the knocking spring and the knocking block to knock the bottom of the shell back and forth for many times to make a clear sound, reminding the user to maintain and replace the filter element assembly in time. In addition, the excessive pressure caused by internal blockage is removed, effectively avoiding irreversible damage to air compressor equipment, automobile engines, etc. caused by failure of the filtration system. At the same time, the efficiency of maintenance work is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The figure is a schematic diagram of the installation structure of the voice prompt type oil filter of the present invention.

[0008] Figure 2 for Figure 1 A schematic diagram of the structure in which the bypass valve assembly, the sound generating assembly and the housing are connected. DETAILED DESCRIPTION

[0009] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] Reference Figure 1 , Figure 2 As shown, the present invention is applied to a sound prompt type oil filter of an air compressor, comprising a housing 1, a screw plate 2, a filter element assembly, and a bypass valve assembly, wherein the filter element assembly comprises an upper end cover 3, a filter paper 4, a lower end cover 5, and a center tube 6, and the bypass valve assembly comprises a bypass valve body 7 and a bypass valve spring 8, and a metal gasket 9 connected to the bypass valve spring 8 is installed at the bottom of the bypass valve body 7, and the metal gasket 9 is connected to the knocking block 12 through a support block 10 and a knocking spring 11 in sequence, and the knocking block 12 is adjacent to the bottom of the housing 1. The metal gasket 9, the support block 10, the knocking spring 11 and the knocking block 12 constitute a sounding assembly, and the support block 10 and the knocking block 12 are connected through the knocking spring 11.

[0011] A check valve 13 is installed at the oil outlet of the center tube 6 of the filter element assembly and between the screw plate 2 and the upper end cover 3 of the filter element assembly to effectively prevent oil backflow. A support spring 14 is installed at the bottom of the bypass valve body 7 and between the lower end cover 5 of the filter element assembly and the bottom of the housing 1. A rubber gasket 15 is installed in the bottom of the bypass valve body 7. The rubber gasket 15 is adjacent to the metal gasket 9. The rubber gasket 15 has a through hole to allow the support block 10 to pass through. The metal gasket 9 has an inward concave structure and is embedded and connected with the bypass valve spring 8 (such as Figure 2 As shown in the figure, it is beneficial to release the spring force of the bypass valve spring.

[0012] When the service life of the filter element assembly is about to end, the internal pressure of the oil filter increases, the bypass valve assembly opens and the oil is directly discharged from the central pipe oil outlet, and the bypass valve spring 8 drives the metal gasket 9, so that the support block 10 drives the knocking spring 11 and the knocking block 12 to knock on the bottom of the housing 1 back and forth for many times, making an obvious sound, reminding the user to maintain and replace the filter element assembly in time.

Claims

1. An audible prompt type oil filter, comprising a housing, a screw plate, a filter element assembly, and a bypass valve assembly, wherein the filter element assembly comprises an upper end cover, filter paper, a lower end cover, and a center tube, and the bypass valve assembly comprises a bypass valve body and a bypass valve spring, and is characterized in that: A metal gasket connected to the bypass valve spring is arranged at the bottom of the bypass valve body. The metal gasket is connected to the knocking block through the supporting block and the knocking spring in sequence. The knocking block is adjacent to the bottom of the shell.

2. The audible prompt type oil filter according to claim 1, characterized in that: A check valve is arranged on the oil outlet of the central tube of the filter element assembly and between the screw seal plate and the upper end cover of the filter element assembly.

3. The audible prompt type oil filter according to claim 1 or 2, characterized in that: A rubber gasket is installed in the bottom of the bypass valve body, the rubber gasket is adjacent to the metal gasket, and the rubber gasket has a through hole for the support block to pass through.

4. The audible prompt type oil filter according to claim 1, characterized in that: The metal gasket has an inwardly concave structure and is embedded and connected with the bypass valve spring.

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