CN2702069Y

CN2702069Y - Filter core of air filter

Info

Publication number: CN2702069Y
Application number: CN 200320107514
Authority: CN
Inventors: 李建国; 王晨钟
Original assignee: BENGBO FILTER Co Ltd
Current assignee: Bengbu Jinwei Filters Co., Ltd.
Priority date: 2003-12-08
Filing date: 2003-12-08
Publication date: 2005-05-25
Anticipated expiration: 2013-12-08

Abstract

The utility model relates to a filter core of air filter, comprising filter paper clamped between an inner protection pipe and an outer protection pipe, a sealing ring and a retainer ring with the sealing ring which are respectively arranged at two axial ends of the protection pipe. The sealing ring and the retainer ring are both integral structure made of a flexible material. The flexible material is polyurethane foam material. When using, an air filter collocated with the filter core is arranged on the engine of a motor vehicle. Therefore, the sealing ring in the integral structure of the filter core can not loosen and shed, the air filter collocated with the filter core realizes end surface seal between the sealing ring in the integral structure and the cover of the outer shell of the air filter, the air filter has favorable sealing effect and high reliability, and the early abrasion of the engine of the motor vehicle is avoided.

Description

Air cleaner cartridge

Technical field

The utility model relates to a kind of parts that are fit to be configured in the air-strainer, particularly relate to a kind of air cleaner cartridge, after this filter core is configured in the air-strainer, can make air-strainer sealing effect better and reliability is strong, can avoid motor car engine premature wear to occur to a certain extent.

Background technique

At present, it is very general that premature wear (abbreviation is mill early) appears in the motor car engine that domestic car load uses, and each engine works is quite big because of motor occurs early grinding the amount of money of compensating every year.Motor car engine occurs early, and mill mainly is owing to be equipped with the poor sealing performance of air-strainer thereon, road conditions bad and make Motor Vehicle occur jolting and the situation of engine operation vibrations under produce intermittent gas leakage (being commonly called as short circuit phenomenon), make unclean air directly enter due to the motor.

The existing air cleaner cartridge (being commonly called as main filter core) that plays main filtration in air-strainer is made up of the metal collar that is clipped in filter paper between inside and outside two-layer pillar, be located at the metal seal at the axial two ends of pillar and be bonded with rubber seal respectively.

After described filter core was configured in a kind of air-strainer, the structure of this filter cleaner was:

On the circumferential side wall of shell suction tude is arranged, on the door of an axial end steam outlet pipe is arranged, suction tude is provided with the air inlet cap assembly, steam outlet pipe is provided with the maintenance indicator, there is the bracket of band pull bar the inside of steam outlet pipe, pull bar passes shell and its traversing through end is shaped on screw thread, the filter core (promptly main filter core) of outside suit blade ring passes the axial the other end of shell, the traversing through end of pull bar is placed in the shell, the flange of blade ring contacts with the metal collar of filter core, the nut of the metal seal of spinning contact filter core on the pull bar, the flange of blade ring is closely contacted (at this moment with door with rubber seal on the metal collar, rubber seal is compressed), between the metal seal of door and filter core, locate to install the safe filter core (in air-strainer, playing less important filtration) that is in the filter core on the pull bar, safe filter core is by being coated on the outer felt of pillar, the safe filter core back-up ring of being located at the safe filter core seal at the axial two ends of pillar respectively and being bonded with rubber seal is formed, safe filter core seal and safe filter core back-up ring all adopt metallic material to make, another nut of spinning touch-safe filter core seal on the pull bar, rubber seal on the safe filter core back-up ring is closely contacted with door, install the another nut of spinning contact capping after the capping on the pull bar, make capping and enclosure axis to the other end be connected, capping is provided with dust-exhausting bag.

For above-mentioned this air-strainer, it is carried out modification also can obtain following other three kinds of air-strainer, be summarized as follows respectively: take away blade ring, and other parts and mutual Placement remain unchanged, obtain a kind of air-strainer; Take away safe filter core, and other parts and mutual Placement remain unchanged, obtain another kind of air-strainer; Take away blade ring and safe filter core, and other parts and mutual Placement remain unchanged, and obtain another air-strainer.

According to detection,, can satisfy the seal request of air-strainer substantially as long as guarantee the rubber seal and the door no-float (promptly taking end face seal) of existing filter core (promptly main filter core).But in use, the described rubber seal that is bonded on the metal collar is easily become flexible, is come off because of aging, and the existence of this defective makes good fit being difficult to of described rubber seal and door continue, so that can't satisfy the seal request of air-strainer.

In sum, exist the deficiency on the structural design owing to play the existing filter core (promptly main filter core) of main filtration in the air-strainer, that is: the described rubber seal of filter core and metal collar are to form by bonding way to divide body structure, so in use, because of the existence of above-mentioned defective can not realize the described rubber seal of filter core and the end face seal between the door, can't satisfy the seal request of air-strainer, therefore, the sealing effect of air-strainer is good and reliability is relatively poor, easily make motor car engine premature wear occur.

The model utility content

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of air cleaner cartridge is provided, after this filter core is configured in the air-strainer, can make air-strainer sealing effect better and reliability is strong, can avoid motor car engine premature wear to occur to a certain extent.

For achieving the above object, the utility model provides a kind of air cleaner cartridge, it is by being clipped in filter paper between inside and outside two-layer pillar, being located at the seal at the axial two ends of pillar and the back-up ring of band seal ring respectively and being formed the overall structure that seal ring and back-up ring are made for the employing flexible material.

During use, will dispose air-strainer of the present utility model and be installed on the motor car engine and get final product.

Described flexible material is a polyurethane foam material.

Adopt after the above structure, because this filter shaft is to the seal ring and the overall structure of back-up ring for adopting flexible material to make of an end, like this, for the described filter core that in air-strainer, plays main filtration, seal ring in the overall structure can not become flexible, come off, make the air-strainer dispose this filter core realize seal ring in the overall structure and the end face seal between the door, thereby eliminated the defective that influences the air-strainer seal request to a certain extent, substantially can satisfy air-strainer seal request in use, therefore make described air-strainer sealing effect better and reliability stronger, can avoid motor car engine premature wear to occur to a certain extent.

Description of drawings

Fig. 1 is the structural representation of the utility model mode of execution;

Fig. 2 is a kind of scheme of installation of the utility model mode of execution.

Embodiment

Below in conjunction with accompanying drawing mode of execution of the present utility model is specifically described:

Referring to Fig. 1, this filter core by the filter paper 4 that is clipped in 3 of inside and outside two-layer circular pillars, be located at the circular seal 5 at pillar 3 axial two ends and the ring back-up ring 2 of band seal ring 1 respectively and formed, seal ring 1 and back-up ring 2 are the overall structure that the employing polyurethane foam material is made in the foaming mode.

Referring to Fig. 2, after this filter core was configured in a kind of air-strainer, the structure of this filter cleaner was:

The door A of the axial left end of cylinder-like shell A ₁On circular steam outlet pipe E with shell A coaxial line is arranged, the outer wall of steam outlet pipe E is provided with maintenance indicator (not shown), there is the bracket F of band pull bar G the inside of steam outlet pipe E, passes shell A with the pull bar G of shell A coaxial line and its traversing through end is shaped on screw thread.

This filter core of outside suit blade ring H passes the axial right-hand member of shell A, the traversing through end of pull bar G is placed in the shell A, and blade ring H is positioned at the axial left side of shell A, the flange of blade ring H contacts with the back-up ring of this filter core 2, pull bar G goes up the nut B that spinning contacts the seal 5 of this filter core, makes the flange of blade ring H and the seal ring 1 and door A of this filter core ₁Inwall closely contact (at this moment, seal ring 1 is compressed), like this, for this filter core, the seal ring 1 in the overall structure can not become flexible, come off, and makes this filter cleaner realize seal ring 1 and door A in the overall structure ₁Between end face seal.

There is circular suction tude I in the axial left side of shell A circumferential side wall corresponding to blade ring H place, and suction tude I is provided with air inlet cap assembly (not shown).Install the nut D of spinning contact capping C behind the circular closure C on the pull bar G, the axial right-hand member of capping C and shell A is connected, capping C is provided with dust-exhausting bag C ₁

Adopt after the above structure, eliminated the defective that influences this filter cleaner seal request to a certain extent, substantially can satisfy this filter cleaner seal request in use, therefore make this filter cleaner sealing effect better and reliability is strong, can avoid motor car engine premature wear to occur to a certain extent.

Certainly, in the also configurable the sort of air-strainer that has blade ring and safe filter core at the same time of this filter core.

For this filter core, the shape of two-layer pillar also can be according to the shape of air cleaner casing and is correspondingly adopted square or other suitable shapes; Described flexible material also can adopt other flexible materials such as rubber.

Claims

1, air cleaner cartridge, it is characterized in that: the overall structure that seal ring and back-up ring are made for the employing flexible material by being clipped in filter paper between inside and outside two-layer pillar, being located at the seal at the axial two ends of pillar and the back-up ring of band seal ring respectively and being formed.

2, air cleaner cartridge according to claim 1 is characterized in that: described flexible material is a polyurethane foam material.