CN111750259A

CN111750259A - Positioning limiting type oil filter

Info

Publication number: CN111750259A
Application number: CN202010433200.1A
Authority: CN
Inventors: 叶南海; 王刁栋; 刘志千; 方辉; 韩伟伟; 刘万斌
Original assignee: Zhejiang Universe Filter Co
Current assignee: Zhejiang Universe Filter Co
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-10-09

Abstract

The invention discloses a positioning limiting type oil filter which comprises a shell, a screw sealing plate, a filter element assembly and a bypass valve assembly, wherein a check valve is arranged between the screw sealing plate and a filter element end cover of the filter element assembly, and the assembly part of the side part of the check valve and the side part of the filter element end cover is of a conical structure; and a wave-shaped spring piece is arranged between a bypass valve seat of the bypass valve component and the inner bottom of the shell and is in contact support with the filter element end cover. The filter element end cover is made of non-woven fabrics. The conical structure at the side part of the check valve can realize convenient assembly and limiting functions when being matched with the filter element end cover, the assembly of the wave-shaped spring piece can support the bypass valve component and the filter element component more tightly, the positioning function is enhanced, and the support is ensured not to shake left and right; the filter core end cover of the filter core component is made of non-woven fabric materials, so that the energy is saved, the environment is protected, the energy consumption is reduced, and the production efficiency is improved. Thereby ensuring the quality of the machine filter product and reducing the labor cost.

Description

Positioning limiting type oil filter

Technical Field

The invention relates to a filtering facility, in particular to an oil filter.

Background

At present, a supporting spring in the bottom of the oil filter is in a spiral mode, the supporting force of a bypass valve component and a filter element component is insufficient, the positioning effect is not obvious, and the risk of left-right shaking is possibly caused. And the contact surface of its inside check valve that is located between close board of spiral shell and the filter element group spare and the filter element end cover lateral part of filter element group spare is the linear type, is unfavorable for installation cooperation and spacing between the two, more is unfavorable for the automated production demand. The filter core end cover material of filter element group spare is iron, and its manual work uses glue two-sided bonding, production efficiency is lower, causes environmental pollution after the abandonment, does not accord with the environmental protection requirement.

Disclosure of Invention

The invention aims to overcome the defects and provide the positioning and limiting type oil filter which is good in assembly limiting and obvious in supporting and positioning.

The purpose of the invention is realized by the following technical scheme: the positioning limiting type oil filter comprises a shell, a screw sealing plate, a filter element assembly and a bypass valve assembly, wherein the filter element assembly consists of a filter element end cover, filter paper and a central pipe, the bypass valve assembly consists of a bypass valve seat and a bypass valve spring, a check valve is arranged between the screw sealing plate and the filter element end cover of the filter element assembly, and the assembly part of the side part of the check valve and the side part of the filter element end cover is of a conical structure; and a wave-shaped spring piece is arranged between a bypass valve seat of the bypass valve component and the inner bottom of the shell and is in contact support with a filter element end cover of the filter element component.

The filter element end cover of the filter element assembly is made of non-woven fabrics and welded with the filter paper by adopting an ultrasonic automatic welding process.

After the structure is adopted, the conical structure at the side part of the check valve is newly designed, so that the functions of convenient assembly and limiting can be realized when the conical structure is matched with the filter element end cover, the structure of a mechanical filter product is more attached, and the automatic production is facilitated; the assembly of the wave-shaped spring piece supports the bypass valve component and the filter element component more tightly, the positioning function is enhanced, and the support is ensured not to cause the bypass valve component and the filter element component to shake left and right; the filter core end cover material of filter element group spare is the non-woven fabrics, and it is produced through ultrasonic automatic weld technology, and energy-concerving and environment-protective reduces the energy consumption, improves production efficiency, and the quality is more stable. Thereby ensuring the quality of the machine filter product and reducing the labor cost.

Drawings

FIG. 1 is a schematic structural diagram of a positioning limit type oil filter of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and embodiments.

Referring to fig. 1, the positioning limit type oil filter of the invention comprises a housing 7, a screw-seal plate 3 (comprising a screw plate and a seal plate), a filter element assembly and a bypass valve assembly, wherein the filter element assembly comprises a filter element end cover 8 (comprising an upper filter element end cover and a lower filter element end cover), filter paper 5 and a central tube 9, the bypass valve assembly comprises a bypass valve seat 10 (containing a bypass valve) and a bypass valve spring 11, a check valve 4 is arranged between the screw-seal plate 3 and the filter element end cover 8 (on the upper part) of the filter element assembly, and the assembly position of the side part of the check valve 4 and the side part of the filter element end cover is in a conical structure (the distance H between the side part of the check valve and the filter paper in the figure is gradually increased from top to bottom; the wave-shaped spring piece 6 is arranged between the bypass valve seat 10 of the bypass valve component and the inner bottom of the shell 7, and the wave-shaped spring piece 6 is in contact support with the filter element end cover 8 (at the lower part) of the filter element component. The top end of the shell 7 is provided with an outer sealing ring 1. The filter element end cover 8 of the filter element assembly is made of non-woven fabric and is welded with the filter paper 5 by adopting an ultrasonic automatic welding process.

Claims

1. Spacing formula oil cleaner in location, including shell (7), the close board of spiral shell (3), filter element group spare, bypass valve subassembly, the filter element group spare comprises filter core end cover (8), filter paper (5), center tube (9), bypass valve subassembly comprises bypass disk seat (10), bypass valve spring (11), its characterized in that: a check valve (4) is arranged between the screw sealing plate (3) and the filter element end cover (8) of the filter element assembly, and the assembly part of the side part of the check valve (4) and the side part of the filter element end cover is in a conical structure; and a wave-shaped spring piece (6) is arranged between a bypass valve seat (10) of the bypass valve component and the inner bottom of the shell (7), and the wave-shaped spring piece (6) is in contact support with a filter element end cover (8) of the filter element component.

2. The position limiting oil filter of claim 1, wherein: the filter element end cover (8) of the filter element assembly is made of non-woven fabric and is welded with the filter paper (5) by adopting an ultrasonic automatic welding process.