Split type filter

Abstract

The application discloses a convenient-to-replace split type filter, which comprises an upper shell, a connecting head, a filter core assembly and a lower shell, the upper shell and the connecting head are in a split type structure, and a lower reinforcing rib is arranged on the outer surface of the lower shell, and the inner wall of the lower shell is a smooth surface. The upper part of the outer surface of the upper shell is provided with a plurality of upper reinforcing ribs. The application can replace defective products such as the connecting head or the upper shell, and has strong replaceability and interchangeability. The upper and lower reinforcing ribs are arranged to increase the strength and damage resistance of the upper and lower shells respectively, and the inner wall of the lower shell is a smooth surface, so that the mold core can be easily drawn in the production process. Therefore, the defective product rate and the production cost of the filter product are reduced, and the filter can be widely applied to the filtration of fuel oil, lubricating oil and hydraulic oil.

Description

Technical Field

[0001] This invention relates to filtration systems, and more specifically to a filter for use in automobiles. Background Technology

[0002] Currently, automotive filters typically consist of an upper housing, connector, filter element assembly, and lower housing. The upper housing and connector are formed as a single, complex outer cap. Damage during transportation, assembly, and welding can render the entire outer cap unusable, resulting in significant material waste and increased costs. Furthermore, the smooth outer surfaces of the upper and lower housings are not very strong and are prone to breakage, making them unsuitable for long-term use. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a replaceable split-type filter with a split design that facilitates component replacement.

[0004] The objective of this invention is achieved through the following technical solution: a replaceable split-type filter, comprising an upper housing, a connector, a filter element assembly, and a lower housing, wherein the upper housing and the connector are split structures, and the outer surface of the lower housing is provided with a lower reinforcing rib and its inner wall is a smooth surface.

[0005] The upper housing has internal threads, and the connector has external threads, forming an internal-external thread connection. A connector sealing ring is installed at the inner port between the upper housing and the connector. The upper outer surface of the upper housing, and above the oil inlet, has several upper reinforcing ribs. The middle outer surface of the upper housing, and below the oil inlet, has evenly distributed multi-layered annular structures. The lower outer surface of the upper housing and the upper outer surface of the lower housing both have groove structures for positioning during the rotational welding of the upper and lower housings.

[0006] By adopting the technical solution of this invention, the split structure design of the upper shell and the connector allows for targeted replacement of defective products such as the connector or upper shell even if damage occurs during transportation, assembly, or welding. This provides strong substitutability and interchangeability. The upper and lower reinforcing ribs increase the strength and damage resistance of the upper and lower shells respectively, and the smooth inner wall of the lower shell facilitates core extraction during production. This reduces the defect rate and production cost of the filter products, and it can be widely used for filtering fuel oil, lubricating oil, and hydraulic oil. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the external structure of the replaceable split filter of the present invention.

[0008] Figure 2 for Figure 1 A cross-sectional structural diagram.

[0009] Figure 3 for Figure 1 A vertical three-dimensional view. Detailed Implementation

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention relates to a replaceable split-type filter for automotive filters (not limited to fuel filters and oil filters), comprising an upper housing 3, a connector 1, a filter element assembly 4, and a lower housing 5. The upper housing 3 and the connector 1 are split structures. The outer surface of the lower housing 5 is provided with several lower reinforcing ribs 6, and its inner wall is a smooth surface (which facilitates core extraction during the production process and reduces the defect rate during production).

[0012] The upper housing 3 has an internal thread, and the connector 1 has an external thread, and the two are connected by internal and external threads. A connector sealing ring 2 is installed at the inner port between the upper housing 3 and the connector 1 (located slightly above the point where the internal and external threads connect). Figure 2 As shown), to increase its sealing performance. The upper outer surface of the upper housing 3, and above the upper housing oil inlet 11, has several upper reinforcing ribs 7 (eight in total), increasing the mechanical strength of the upper housing. The middle outer surface of the upper housing 1, and below the upper housing oil inlet, has a uniformly distributed multi-layered annular structure 8 (a ring with multiple layers evenly distributed on the upper and lower sides), increasing the total area of ​​the upper housing oil inlet and reducing the oil flow resistance. The lower outer surface of the upper housing 3 and the upper outer surface of the lower housing 5 both have groove structures 9 for positioning the upper and lower housings during rotary welding, and reducing the cost of plastic molding and rotary welding fixture processing. The interior of the connector 1, and the point where it communicates with the central tube of the filter element assembly 4, serves as the connector oil outlet 10 (one). The upper part of the upper housing 3, near the upper reinforcing ribs (i.e., below the upper reinforcing ribs 7), has several upper housing oil inlets 11. These upper reinforcing ribs can be arranged alternately with the upper housing oil inlets (e.g., at intervals). Figure 3 (As shown).

Claims

1. A replaceable split-type filter, comprising an upper housing, a connector, a filter element assembly, and a lower housing, characterized in that: The upper shell and the connector are separate structures. The outer surface of the lower shell is provided with a lower reinforcing rib, and its inner wall is a smooth surface.

2. The replaceable split-type filter as described in claim 1, characterized in that: The upper housing has an internal thread, and the connector has an external thread, and the two are connected by internal and external threads. A connector sealing ring is installed at the inner port between the upper housing and the connector.

3. The replaceable split-type filter as described in claim 1 or 2, characterized in that: The upper outer surface of the upper housing has several upper reinforcing ribs above the oil inlet of the upper housing.

4. The replaceable split-type filter as described in claim 1 or 2, characterized in that: The outer surface of the upper housing in the middle, and below the oil inlet of the upper housing, has a uniformly distributed multi-layered annular structure.

5. The replaceable split-type filter as described in claim 1, characterized in that: The lower outer surface of the upper shell and the upper outer surface of the lower shell both have groove structures for positioning during the rotational welding of the upper and lower shells.

Images