Sounding prompt type oil filter

Abstract

The utility model discloses a sound production prompting type oil filter which comprises a shell, a screw sealing plate, a filter element assembly and a bypass valve assembly, the bypass valve assembly comprises a bypass valve body and a bypass valve spring, 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 connected with the shell. The knocking block is adjacent to the bottom of the shell, and supporting springs are arranged at the bottom of the bypass valve body and between the lower end cover of the filter element assembly and 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 present application relates to a filter system, in particular to a machine oil filter. BACKGROUND

[0002] At present, the machine oil filter applied to air compressor or automobile has certain use limit when filtering the machine oil, but there is no use life end reminding warning, although the bypass valve (single valve) is used to cope with, there still exists the risk of causing the machine oil pipeline to be blocked, the pressure to be increased or the unclean machine oil to enter the machine interior, resulting in irreversible damage, thereby affecting the working efficiency and use life of the applied facilities (air compressor or automobile, etc.). SUMMARY

[0003] The present application aims at overcoming the above technical defects, and provides a sound emitting prompt type machine oil filter capable of emitting sound and reminding the maintenance and replacement.

[0004] The present application is realized by the following technical scheme: the sound emitting prompt type machine oil filter comprises a shell, a screw plate, a filter core assembly and a bypass valve assembly, the filter core assembly comprises an upper end cover, filter paper, a lower end cover and a center tube, the bypass valve assembly comprises a bypass valve body and a bypass valve spring, a metal gasket connected with the bypass valve spring is arranged at the bottom of the bypass valve body, the metal gasket is connected with a supporting block, a knocking spring and a knocking block in sequence, the knocking block is adjacent to the bottom of the shell, and a supporting spring is arranged between the bottom of the bypass valve body and the bottom of the shell.

[0005] A check valve is arranged at the oil outlet of the center tube of the filter core assembly and between the screw plate and the upper end cover of the filter core assembly. A rubber gasket is arranged in the bottom of the bypass valve body, and the rubber gasket is adjacent to the metal gasket, the rubber gasket has a through hole for the supporting block to pass through. The metal gasket has a concave structure for embedding the bypass valve spring.

[0006] After the technical scheme of the present application is adopted, when the life of the filter core assembly is about to end, the pressure in the machine oil filter is increased, the bypass valve assembly is opened to drive the metal gasket by the bypass valve spring, the supporting block drives the knocking spring and the knocking block to repeatedly knock the bottom of the shell to emit obvious sound, thereby reminding the user to timely maintain and replace the filter core assembly. Moreover, the excessive pressure caused by the internal blockage is removed, the irreversible damage of the filter system to the air compressor equipment, automobile engine and the like is effectively avoided, and the maintenance work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is an installation structure diagram of the sound emitting prompt type machine oil filter of the present application.

[0008] Figure 2 For Figure 1 the bypass valve assembly, sound-producing assembly and shell structure diagram. DETAILED DESCRIPTION

[0009] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0010] Referring to Figure 1 , Figure 2 , the application is applied to the sound-producing prompt type oil filter of air compressor, comprising a shell 1, a screw plate 2, a filter element assembly, a bypass valve assembly, the filter element assembly comprises an upper end cover 3, filter paper 4, a lower end cover 5, a center tube 6, the bypass valve assembly comprises a bypass valve body 7, a bypass valve spring 8, a metal gasket 9 connected with the bypass valve spring 8 is arranged at the bottom of the bypass valve body 7, the metal gasket 9 is connected with the knocking spring 11 and the knocking block 12 through the support block 10 in turn, the knocking block 12 is adjacent to the bottom of the shell 1, the support spring 14 is arranged between the bottom of the bypass valve body 7 and the bottom of the shell 1 (which is beneficial to firm support). The metal gasket 9, the support block 10, the knocking spring 11 and the knocking block 12 constitute a sound-producing assembly, the support block 10 and the knocking block 12 are connected through the knocking spring 11.

[0011] A check valve 13 is arranged 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, which effectively prevents the backflow of oil. A rubber gasket 15 is arranged in the bottom of the bypass valve body 7, which is adjacent to the metal gasket 9, and the rubber gasket 15 has a through hole for the support block 10 to pass through. The metal gasket 9 has an inner recess structure to be embedded with the bypass valve spring 8 (as shown in Figure 2 ), which is beneficial to the release of 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 works to open and directly discharges oil from the center tube outlet, the metal gasket 9 is driven by the bypass valve spring 8, the support block 10 drives the knocking spring 11 (which has a rebounding effect) and the knocking block 12 to repeatedly knock the bottom of the shell 1 to produce obvious sound, reminding the user to maintain and replace the filter element assembly in time.

Claims

1. A sound prompt type oil filter, comprising a shell, a screw plate, a filter element assembly, a bypass valve assembly, the filter element assembly comprising an upper end cover, filter paper, a lower end cover, a center tube, the bypass valve assembly comprising a bypass valve body, a bypass valve spring, characterized in that: A metal washer is arranged at the bottom of the bypass valve body and connected with the bypass valve spring, and the metal washer is connected with the support block, the knock spring and the knock block in sequence, the knock block is adjacent to the bottom of the shell, and a support spring is arranged between the bottom of the bypass valve body and the bottom of the shell.

2. The voice prompted oil filter of claim 1, wherein: A check valve is arranged on the oil outlet of the center tube of the filter element assembly and between the screw plate and the upper end cover of the filter element assembly.

3. The audible alert oil filter of claim 1 or 2, wherein: A rubber washer is arranged in the bottom of the bypass valve body and adjacent to the metal washer, and the rubber washer has a through hole for the support block to pass through.

4. The audible alert oil filter of claim 1 or 2, wherein: The metal washer has a concave structure and is embedded with the bypass valve spring.

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