CN214836613U

CN214836613U - Engine oil filter

Info

Publication number: CN214836613U
Application number: CN202120664943.XU
Authority: CN
Inventors: 王洪涛; 范宁霞; 吕世志; 马鑫生; 臧超
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-23
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses an oil filter, which comprises a filter element, a base, a pressing piece and a connecting component; the pressing piece is fixed with the base through the connecting assembly, and the connecting assembly applies axial fastening force to the pressing piece along the axial direction of the filter element; the axial end of the filter element is a connecting end, the connecting end is provided with an annular boss protruding outwards in the radial direction, the annular boss is located between the pressing piece and the base, and the pressing piece presses the annular boss under the action of axial fastening force, so that the filter element is in close contact with the base. This scheme of adoption can reduce the not hard up serious risk of filter core vibration that leads to of filter core and base to can reduce oil cleaner's oil leak probability, can avoid coupling assembling and filter core direct contact to lead to coupling assembling to be soaked by the fluid of leakage and the problem of being difficult to the dismantlement moreover, easy dismouting.

Description

Engine oil filter

Technical Field

The utility model discloses lubricating oil system technical field, especially an oil cleaner.

Background

The oil filter is used for filtering out impurities in the engine oil, reducing the abrasion of the transmission mechanism of the engine, providing clean engine oil for the engine and prolonging the service life of the engine. If the engine oil filter is not maintained timely, the filter element inside the engine oil filter is blocked by impurities or particles in the engine oil, so that an oil path is not smooth, the service life of parts of the engine is seriously shortened, and even the engine needs to be overhauled.

Oil cleaner includes filter core and base, and filter core and base are fixed together, and among the prior art, the fixed mode of adoption is that the annular clamp cramps, sets up the annular clamp in the contact position periphery of filter core and base promptly.

The fixing mode is easy to loosen, so that the filter element is easy to vibrate, the sealing performance is poor, and oil leakage is easy. When the oil leakage is serious, the transmission mechanism of the engine is rapidly worn and the like.

Therefore, as one skilled in the art, there is a need to improve the fixing manner of the filter element and the base to reduce the oil leakage probability of the oil filter.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an oil filter, which comprises a filter element, a base, a pressing piece and a connecting component; the pressing piece is fixed with the base through the connecting assembly, and the connecting assembly applies axial fastening force to the pressing piece along the axial direction of the filter element; the axial end of the filter element is a connecting end, the connecting end is provided with an annular boss protruding outwards in the radial direction, the annular boss is located between the pressing piece and the base, and the pressing piece presses the annular boss under the action of axial fastening force, so that the filter element is in close contact with the base.

In one embodiment, the connection assembly includes an externally threaded fastener extending axially along the filter cartridge and an internally threaded fastener connected to the press member and connected to the internally threaded fastener through the base.

In one embodiment, the externally threaded fastener is of unitary construction with the press.

In one embodiment, the pressing member includes a sleeve body, the sleeve body is sleeved on the outer periphery of the filter element, and one axial end of the sleeve body abuts against the annular boss.

In one embodiment, the pressing member further includes a connecting portion disposed at an outer periphery of the other axial end of the sleeve body, the connecting assembly is connected to the connecting portion, and a space is provided between the connecting portion and the base.

In one embodiment, the base is provided with a groove, into which the annular boss is embedded.

In one embodiment, the connector assemblies are configured in a plurality of groups, each group being equiangularly spaced around the axis of the filter cartridge.

This scheme, because fastening power is axial fastening power, so the link and the base of filter core can be in close contact with under the fastening power effect, compare in the past and utilize the radial fastening power of clamp to fix filter core and base, can reduce the not hard up risk that leads to the filter core vibration of filter core and base to can reduce oil filter's oil leak probability.

And, this scheme lets coupling assembling and press the piece to link to each other, utilizes the press to press the filter core, has avoided coupling assembling and filter core direct contact like this to can avoid the filter core oil liquid to soak the problem that leads to coupling assembling to be difficult to dismantle on the coupling assembling when the oil leak.

Drawings

Fig. 1 is a perspective view of an embodiment of an oil filter according to the present invention;

fig. 2 is a cross-sectional view of fig. 1.

The reference numerals are explained below:

1 filter element, 11 ring-shaped lug bosses,

2, a base, 21 grooves;

3 pressing piece, 31 sleeve body and 32 connecting part;

4 connecting component, 41 external thread fastener and 42 internal thread fastener.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.

As shown, the oil filter includes a filter element 1, a base 2, a pressing member 3, and a connecting member 4.

One axial end (upper end in the figure) of the filter element 1 is a connecting end and is connected with the base 2. The filter element 1 comprises a shell and a filter element body, the filter element body is installed in the shell in a sealing mode through a sealing piece, and the sealing piece is arranged close to the connecting end of the filter element 1.

The pressing piece 3 is fixed with the base 2 through the connecting component 4, and the connecting component 4 applies axial fastening force to the pressing piece 3 along the axial direction of the filter element 1. Specifically, a plurality of groups of connecting assemblies 4 can be configured, and the groups of connecting assemblies 4 are arranged around the axis of the filter element 1 at equal angular intervals to ensure the uniform distribution of fastening force.

The connecting end of the filter element 1 is provided with an annular boss 11 protruding outwards in the radial direction, the annular boss 11 is located between the pressing piece 3 and the base 2, the pressing piece 3 is abutted against the annular boss 11, and the pressing piece 3 is abutted against the annular boss 11 under the action of axial fastening force, so that the connecting end of the filter element 1 is in close contact with the base 2.

This scheme, because fastening force is axial fastening force, so the link of filter core 1 can be in close contact with under the fastening force effect with base 2, compares and utilizes the radial fastening force of clamp to fix filter core 1 and base 2 in the past, can reduce filter core 1 and the not hard up serious risk of filter core 1 vibration that leads to of base 2 to can reduce oil filter's oil leak probability.

In addition, this scheme lets coupling assembling 4 link to each other with press part 3, utilizes press part 3 to press filter core 1, has avoided coupling assembling 4 and filter core 1 direct contact like this to can avoid filter core 1 oil leakage time oil liquid to soak coupling assembling 4 on, lead to the difficult problem of dismantling of coupling assembling 4.

Consequently, this scheme of adoption can reduce oil cleaner's oil leak probability, makes the convenient dismantlement of oil cleaner moreover to can conveniently change the filter core fast.

In the illustrated embodiment, the connection assembly 4 employs an external thread connection member and an internal thread connection member, the external thread connection member extends along the axial direction of the filter element 1, the external thread connection member and the pressing member 3 are integrated, the external thread fastening member 41 penetrates through a through hole on the base 2 to be connected with the internal thread fastening member 42, and the internal thread fastening member 42 abuts against the base 2.

The external threaded fastener 41 and the pressing piece 3 may be specifically: the materials are welded into a whole after being formed separately, and can also be integrally cast and formed. Set up to a body structure, it is higher to connect the reliability, and the part is few during the dismouting to it is changeed in the dismouting. Of course, the external threaded fastener 41 and the pressing member 3 may be provided separately, and the external threaded fastener 41 may pass through a through hole in the pressing member 3 to be connected with another internal threaded fastener 42.

Alternatively, the connecting assembly 4 may be a snap-fit structure or the like that provides an axial fastening force. Generally, the connection is more convenient and reliable by adopting the threaded fastener.

In the illustrated embodiment, the pressing member 3 includes a sleeve 31, the sleeve 31 is fitted around the outer periphery of the filter element 1, and an axial end (upper end in the drawing) of the sleeve 31 abuts against the annular boss 11. Set up like this, make 11 a week homoenergetic of cyclic annular boss be contradicted, more do benefit to the in close contact with of guarantee filter core 1 and base 2.

In the illustrated embodiment, the pressing member 3 further includes a connecting portion 32, and the connecting portion 32 is disposed on the outer periphery of the other axial end (lower end) of the sleeve 31, and may be configured as an annular plate structure.

The male screw fastener 41 is connected to the connecting portion 32, and the connecting portion 32 is spaced apart from the base 2. With this arrangement, the connection member 4 can be further away from the contact position between the filter element 1 and the base 2, and the leaked oil can be further prevented from being applied to the connection member 4.

In the illustrated embodiment, the base 2 is provided with a groove 21, the annular boss 11 on the filter element 1 is embedded into the groove 21, the shape of the groove 21 is matched with that of the annular boss 11, and the inner diameter of the groove 21 is 1-2 mm larger than the outer diameter of the annular boss 11. Set up recess 21, let cyclic annular boss 11 imbed recess 21, can further protect the sealing member of filter core 1 not receive external erosion, moreover, during the equipment, can play the effect of preliminary location.

It is right above that the utility model provides an oil cleaner has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The oil filter comprises a filter element (1) and a base (2), and is characterized by also comprising a pressing piece (3) and a connecting assembly (4); the pressing piece (3) is fixed with the base (2) through the connecting component (4), and the connecting component (4) applies axial fastening force to the pressing piece (3) along the axial direction of the filter element (1); the axial end of the filter element (1) is a connecting end, the connecting end is provided with an annular boss (11) which protrudes outwards in the radial direction, the annular boss (11) is located between the pressing piece (3) and the base (2), and the pressing piece (3) presses the annular boss (11) under the action of axial fastening force, so that the filter element (1) is in close contact with the base (2).

2. The oil filter according to claim 1, characterized in that the connection assembly (4) comprises an externally threaded fastener (41) and an internally threaded fastener (42), the externally threaded fastener (41) extending axially along the filter cartridge (1), the externally threaded fastener (41) being connected to the press (3) and to the internally threaded fastener (42) through the base (2).

3. The oil filter according to claim 2, characterized in that the externally threaded fastener (41) is of one-piece construction with the press piece (3).

4. The oil filter according to any of claims 1 to 3, wherein the pressing member (3) comprises a sleeve body (31), the sleeve body (31) is sleeved on the periphery of the filter element (1), and one axial end of the sleeve body (31) is abutted against the annular boss (11).

5. The oil filter according to claim 4, wherein the pressing member (3) further comprises a connecting portion (32), the connecting portion (32) is provided on the outer periphery of the other axial end of the sheath (31), the connecting member (4) is connected to the connecting portion (32), and the connecting portion (32) is spaced from the base (2).

6. Oil filter according to claim 1, characterised in that the base (2) is provided with a groove (21), the annular projection (11) engaging in the groove (21).

7. The oil filter according to claim 1, characterized in that the connection assemblies (4) are configured in a plurality of groups, each group of connection assemblies (4) being arranged at equiangular intervals around the axis of the filter cartridge (1).