CN215830565U

CN215830565U - Oil filter

Info

Publication number: CN215830565U
Application number: CN202122300707.2U
Authority: CN
Inventors: 叶阳; 叶清锐
Original assignee: Ningbo Yexing Auto Parts Co ltd
Current assignee: Ningbo Yexing Auto Parts Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-15
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to an oil filter, which comprises a pressure relief opening; the part of the protective cover extends into the pressure relief opening, and a central hole is formed in the protective cover; a valve plate arranged on the center hole of the protective cover; the method is characterized in that: the periphery of the peripheral wall of the pressure relief opening is convexly provided with a convex rib, correspondingly, the protective cover comprises an extending part extending into the pressure relief opening and a flanging arranged at the lower end of the extending part, the flanging can be matched with the convex rib, and the flanging can be tightly attached to the convex rib in a state that the extending part extends into the pressure relief opening and is in interference fit with the pressure relief opening, so that the protective cover and the pressure relief opening are completely sealed; compared with the prior art, the utility model has the advantages that: the protective cover and the pressure relief opening are in interference fit so that the protective cover and the pressure relief opening are connected together without gaps to play a sealing role, when the protective cover bears suction, the protective cover can move towards the inside of the pressure relief opening, the flanging is tilted downwards, and the convex rib arranged on the periphery of the peripheral wall of the pressure relief opening can ensure that the flanging is tightly attached to the pressure relief opening all the time.

Description

Oil filter

Technical Field

The utility model relates to the technical field of automobile parts, in particular to an oil filter.

Background

The automobile is a main vehicle at present and has a large holding capacity, and an oil filter of an automobile engine is a consumable product and needs to be replaced after being used for a period of time; the replaced oil filter cannot be recycled and can only be discarded, so that a large amount of garbage is generated, and the environment is polluted; in order to protect the environment as much as possible, it is desirable to reduce the use of hazardous materials; therefore, the Chinese utility model with the patent number ZL201420860012.7 discloses a three-piece oil filter, which comprises a bypass valve body, wherein the bypass valve body consists of a compression spring piece, a bypass valve spring and a bypass valve plate; the lower end of the bypass valve plate is provided with at least three hook claws, and the lower wall of the compression spring piece is provided with a groove body for accommodating a bypass valve spring; the upper wall of the compression spring piece is provided with a mounting position of a bypass valve plate; compared with the prior art, the bypass valve reduces the number of parts and saves resources to a certain extent, thereby achieving the purpose of protecting the environment; however, although the number of parts of the bypass valve is reduced, no improvement is made on how to seal the bypass valve, and the parts are reduced, and the bypass valve and the filter barrel are ensured to be well sealed, so that the prior art needs to be further improved.

Disclosure of Invention

The present invention is directed to provide an oil filter having good sealing performance and simple assembly in view of the above technical situation.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the engine oil filter comprises a pressure relief opening for relieving pressure when the internal pressure is overlarge; the part of the protective cover extends into the pressure relief opening, and a central hole is formed in the protective cover; the valve plate is arranged on the center hole of the protective cover; and one end of the spring is propped against the protective cover, and the other end of the spring is propped against the valve plate; the method is characterized in that: the protruding muscle that is equipped with of perisporium periphery of pressure release mouth, correspondingly, the safety cover is including stretching into the portion of stretching into of pressure release mouth, and set up stretch into the portion lower extreme and outwards turn over the turn-ups of rolling over, the turn-ups can with protruding muscle cooperatees stretch into the portion stretch into the pressure release mouth and with under the pressure release mouth interference fit's the state, the turn-ups can with protruding muscle closely laminates, makes the safety cover with the pressure release mouth is sealed completely.

In order to make the assembly simpler, as an improvement, the outer wall of the extending part is provided with at least one positioning column for installation and positioning, and correspondingly, the peripheral wall of the pressure relief opening is provided with a positioning groove matched with the positioning column. Set up reference column and constant head tank and can make when the installation quicker, and make the direction of installation more accurate.

In order to better install the spring, as an improvement, the valve plate comprises a switch part capable of covering the central hole of the protective cover, and a claw part arranged below the switch part.

Furthermore, one end of the spring is propped against the extending part, and the other end of the spring is propped against the claw part. When the filter barrel of the oil filter is blocked, the pressure in the oil filter is increased, and when the pressure reaches a certain threshold value, the valve plate compresses the spring to enable the switch part to move upwards and separate from the central hole, so that the oil can be released from the central hole.

In order to facilitate the installation of the protective cover into the pressure relief opening, as an improvement, the protective cover further comprises a handle part arranged on the outer edge of the flanging. An operator can conveniently install the protective cover into the pressure relief opening or detach the protective cover from the pressure relief opening through the handle.

Compared with the prior art, the utility model has the advantages that: the interference fit through safety cover and pressure release mouth makes both link together and play the sealed effect gaplessly, and when the safety cover bears suction, the safety cover can remove in to the pressure release mouth, and the turn-ups then perks downwards, and the protruding muscle that sets up at the perisporium periphery of pressure release mouth then can guarantee as far as that the turn-ups closely laminates with the pressure release mouth all the time for the leakproofness is more reliable.

Drawings

FIG. 1 is a cross-sectional view of an oil filter according to an embodiment of the present invention;

FIG. 2 is an exploded view of an oil filter according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a protective cover according to an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in FIGS. 1 to 3, the preferred embodiment of the present invention is shown. The oil filter of the embodiment comprises a pressure relief opening 1, a protective cover 2, a valve plate 3 and a spring 4; the pressure relief port 1 can be directly arranged on a filter barrel 1a of the oil filter, and also can be arranged on a lower end cover 1b positioned below the filter barrel 1a, and the utility model is explained by arranging the pressure relief port 1 on the lower end cover 1 a; the local part of the protective cover 2 extends into the pressure relief opening 1 and is provided with a central hole 21; the valve plate 3 is arranged on the central hole 21 of the protective cover 2 and comprises a switch part 31 which can cover the central hole 21 of the protective cover 2 and a claw part 32 arranged below the switch part 31; in addition, one end of the spring 4 is propped against the extending part 22 of the protective cover 2, and the other end is propped against the hook claw part 32 of the valve plate 3; the 11 protruding muscle 12 that is equipped with in perisporium 11 periphery of pressure release port 1, correspondingly, safety cover 2 is including stretching into the portion 22 that stretches into of pressure release port 1 to and set up stretching into 22 lower extremes and the turn-ups 23 of turning up the book outward, turn-ups 23 can cooperate with protruding muscle 12, stretch into portion 22 and stretch into pressure release port 1 and with 1 interference fit's of pressure release port state under, turn-ups 23 can closely laminate with protruding muscle 12, make safety cover 2 and pressure release port 1 sealed completely.

In order to make the assembly simpler and more accurate during the assembly, the following structure is adopted to realize the embodiment: the outer wall 221 of the extending part 22 of the present embodiment is provided with four positioning pillars 222 for installation and positioning, and correspondingly, the peripheral wall 11 of the pressure relief opening 1 is provided with a positioning groove 13 matched with the positioning pillars 222; in addition, in this embodiment, a handle portion 24 is provided on the outer edge of the flange 23 of the protective cover 2. The positioning columns 222 and the positioning grooves 13 are arranged, so that the installation is quicker and the installation direction is more accurate; the handle portion 24 is provided to allow an operator to conveniently mount the protection cover 2 into the pressure relief opening 1 or detach the protection cover 2 from the pressure relief opening 1 through the handle portion 24.

In summary, the use process of the oil filter is as follows: when the pressure relief valve is installed, an operator holds the handle part 24 of the protection cover 2, aligns the positioning column 222 of the protection cover 2 with the positioning groove 13 of the pressure relief opening 1, embeds the protection cover 2 into the pressure relief opening 1, and covers the central hole 21 by the valve plate 3 under the action of the spring 4, so that the pressure relief opening 1 is in a closed state;

when the filter barrel 1 is blocked and the pressure is overlarge, the valve plate 3 compresses the spring 4, so that the switch part 31 moves upwards to be separated from the central hole 21, and the engine oil can be decompressed from the central hole 21; the normal operation of an engine oil lubricating system is ensured, and an automobile engine is effectively protected.

Claims

1. An oil filter comprises a pressure relief opening (1) for relieving pressure when the internal pressure is overlarge; the part of the protective cover (2) extends into the pressure relief opening (1), and a central hole (21) is formed in the protective cover (2); the valve plate (3) is arranged on a central hole (21) of the protective cover (2); and a spring (4) with one end abutting against the protective cover (2) and one end abutting against the valve plate (3); the method is characterized in that: the protruding muscle (12) that is equipped with of perisporium (11) periphery of pressure release mouth (1), correspondingly, safety cover (2) is including stretching into stretch into portion (22) of stretching into of pressure release mouth (1), and set up stretch into portion (22) lower extreme and turn-ups (23) to the evagination book, turn-ups (23) can with protruding muscle (12) cooperate stretch into portion (22) stretch into pressure release mouth (1) and with under pressure release mouth (1) interference fit's the state, turn-ups (23) can with protruding muscle (12) closely laminate, make safety cover (2) with pressure release mouth (1) is sealed completely.

2. The oil filter of claim 1 wherein: the outer wall (221) of the extending part (22) is provided with at least one positioning column (222) for installation and positioning, and correspondingly, the peripheral wall (11) of the pressure relief opening (1) is provided with a positioning groove (13) matched with the positioning column (222).

3. The oil filter of claim 2 wherein: the valve plate (3) comprises a switch part (31) capable of covering the central hole (21) of the protective cover (2), and a hook part (32) arranged below the switch part (31).

4. An oil filter according to claim 3 wherein: one end of the spring (4) is propped against the extending part (22), and the other end is propped against the hook part (32).

5. An oil filter according to any one of claims 1 to 4 wherein: the protective cover (2) further comprises a handle part (24) arranged on the outer edge of the flanging (23).