CN220101406U

CN220101406U - Air filter

Info

Publication number: CN220101406U
Application number: CN202321439745.9U
Authority: CN
Inventors: 王�琦
Original assignee: Taizhou Langxin Machinery Co ltd
Current assignee: Taizhou Langxin Machinery Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-11-28
Anticipated expiration: 2033-06-07

Abstract

The utility model relates to an air filter, which is convenient to use in a dust environment and improves the convenience of maintenance, and comprises a supporting seat, a filter box, a filter element and a housing, wherein the filter box is positioned at the upper part of the supporting seat; the dust protection structure comprises an air inlet net, a dust protection net and a dust protection ring, wherein the dust protection ring is detachably and fixedly connected with the air inlet, the air inlet net covers one end, far away from the oil box, of the dust protection ring, and the dust protection net covers one end, close to the oil box, of the dust protection ring.

Description

Air filter

Technical Field

The utility model relates to the field of air filters, in particular to an air filter.

Background

During operation, the engine is required to draw in a large amount of air, and an air cleaner is used to filter dust suspended in the air and is usually mounted in front of a carburetor or an air intake pipe to ensure that sufficient and clean air can be introduced into the engine.

The air filter for petrol engine is generally divided into paper filter and oil filter, and is composed of air filter cover and air filter body, and filter element arranged in the air filter. When the engine works, air is sucked in from the air inlet on the air filter cover and filtered by the filter element and then comes out from the air outlet on the air filter body.

In recent years, sand storm is often coming in northern areas, and the air filter of the gasoline engine continuously sucks air with a large amount of sand dust in operation, and the air filter has a filter element for air filtration, but the filter element is blocked in the sand dust environment, so that the air inlet is not smooth, the performance of the gasoline engine is reduced, even the gasoline engine is flameout, the maintenance period is greatly shortened, and the disassembly and maintenance are troublesome.

Disclosure of Invention

In order to facilitate use in a dust and sand environment and improve convenience in maintenance, the utility model provides an air filter.

The utility model provides an air filter which adopts the following technical scheme:

the air filter comprises a supporting seat, a filter box and an outer cover, wherein the filter box is positioned at the upper part of the supporting seat, the outer cover is detachably connected with the filter box, an oil box is arranged in the filter box, an air inlet is formed in the filter box, the air inlet is positioned at the side surface of the filter box, and a dust protection structure is arranged on the air inlet;

the dust protection structure comprises an air inlet net, a dust protection net and a dust protection ring, wherein the dust protection ring is detachably and fixedly connected with the air inlet, the air inlet net covers one end, far away from the oil box, of the dust protection ring, and the dust protection net covers one end, close to the oil box, of the dust protection ring.

Further, a dust falling groove with an annular structure is formed in the inner circumferential surface of the dust-proof ring.

Furthermore, the outer circumferential surface of the dustproof ring is provided with positioning protrusions, and the air inlet is provided with a plurality of positioning grooves for embedding the positioning protrusions.

Furthermore, the sand protection net is obliquely arranged and forms an included angle with the horizontal plane.

Further, the dustproof ring comprises a ring body and an air inlet ring used for installing an air inlet net, and the air inlet ring is in threaded connection with the ring body.

In summary, the present utility model includes at least one of the following beneficial technical effects:

according to the utility model, by changing the position of the air inlet and adding the sand and dust protection structure, the sand and dust filtration can be carried out on the sucked air at the front stage of the conventional oil filtration, so that the sand and dust entering the filter element is reduced as much as possible, and the maintenance period of the filter element is prolonged.

The detachable dust-proof ring is convenient to maintain and clean sand and dust, does not need to detach the outer cover, can shake off the sand and dust on the sand and dust protection net by combining the vibration of the gasoline engine during operation, reduces the probability that the sand and dust blocks the sand and dust protection net, and prolongs the service life.

Drawings

Fig. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a partial schematic view of the present embodiment;

FIG. 3 is a schematic view of the structure of the ring body in the present embodiment;

fig. 4 is a cross-sectional view at the ring body in the present embodiment.

Reference numerals illustrate: 1. the supporting seat; 2. a filter box; 21. an air inlet; 22. a positioning groove; 23. an oil box; 4. an outer cover; 51. an air inlet network; 52. sand protection net; 531. a ring body; 532. an air inlet ring; 54. positioning the bulge; 55. a dust falling groove.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses an air filter, which mainly comprises a supporting seat 1, a filter box 2, a filter element and an outer cover 4, is commonly used for equipment such as a gasoline engine and the like, and is divided into a paper filter type and an oil filter type, and the embodiment is preferably improved on the oil filter type. Wherein, filter cartridge 2 is located support 1 upper portion, and the filter core is installed in dustcoat 4, and dustcoat 4 passes through screw rod, fastener detachable connection with filter cartridge 2, and after dress dustcoat 4, through the fixed filter core of locating ring and dustcoat 4 cooperation on the filter cartridge 2, be equipped with oil box 23 in the filter cartridge 2, outside air gets into through the air inlet 21 of seting up on the filter cartridge 2, gets into the inlet channel on the support 1 through the filter core. In order to facilitate the arrangement of the dust and sand protection structure, the air inlet 21 is arranged on the side surface of the filter box 2.

Specifically, the dust protection structure in this embodiment includes an air inlet net 51, a dust protection net 52 and a dust-proof ring, and the dust-proof ring is detachably and fixedly connected with the air inlet 21, preferably, the dust-proof ring is embedded into the air inlet 21 to realize installation, so that the dust-proof ring is convenient to take out. The air inlet net 51 covers the end of the dust-proof ring far away from the oil box 23 for improving the integrity and the aesthetic degree of the sand protection structure, and the sand protection net 52 covers the end of the dust-proof ring near to the oil box 23 for preventing sand from passing through.

In order to prevent sand and dust from falling onto the gasoline engine from the sand and dust protection net 52, the inner circumferential surface of the dust-proof ring is provided with the dust-falling groove 55 with a ring-shaped structure, so that the sand and dust on the sand and dust protection net 52 can vibrate by the gasoline engine, and fall into the dust-falling groove 55, thereby being convenient for maintenance and cleaning.

In addition, the outer circumference of the dustproof ring is provided with the positioning protrusion 54, so that the dustproof ring can be used for positioning when being installed, the error angle or direction is avoided, and the positioning protrusion 54 can be of a quadrangular frustum pyramid structure, so that the dustproof ring is convenient to assemble. Then, the air inlet 21 is provided with a plurality of positioning grooves 22 for embedding the positioning protrusions 54, so that the matching is realized. In particular, the embodiment also uses the dust protection net 52 to be inclined to form an included angle with the horizontal plane. By the inclined arrangement, the sand and dust protection net 52 faces obliquely downwards, the dust-proof area of the sand and dust protection net is enlarged, and filtered sand and dust can fall conveniently.

For convenient cleaning, the dust-proof ring in this embodiment includes a ring 531 and an air inlet ring 532, the air inlet ring 532 is mainly used for installing and fixing the air inlet net 51, and the inner circumferential surface of the air inlet ring 532 is provided with internal threads, and is connected with the outer circumferential surface of the ring 531 by threads, so as to facilitate disassembly and assembly.

When the anti-dust device is used, only the anti-dust ring is needed to be embedded into the corresponding air inlets, and the air inlets in the anti-dust device can be provided with a plurality of air inlets, and if the gasoline engine is in a normal use environment, the anti-dust ring can be taken down at will.

The sealing gasket and other structures can be additionally arranged between the outer cover 4 and the filter box 2, so that air with dust is prevented from directly entering from a gap between the outer cover 4 and the filter box 2, and the detailed description of the embodiment is omitted.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides an air cleaner, includes bearing (1), filter box (2) and dustcoat (4), filter box (2) are located bearing (1) upper portion, and dustcoat (4) are connected with filter box (2) can be dismantled, be equipped with oil box (23) in filter box (2), and set up air inlet (21) on filter box (2), its characterized in that: the air inlet (21) is positioned on the side surface of the filter box (2), and a dust and sand protection structure is arranged on the air inlet (21);

the dust protection structure comprises an air inlet net (51), a dust protection net (52) and a dust-proof ring, wherein the dust-proof ring is detachably and fixedly connected with the air inlet (21), the air inlet net (51) covers one end, far away from the oil box (23), of the dust-proof ring, and the dust protection net (52) covers one end, close to the oil box (23), of the dust-proof ring.

2. An air cleaner according to claim 1 wherein: a dust falling groove (55) with an annular structure is formed in the inner circumferential surface of the dust-proof ring.

3. An air cleaner according to claim 1 or 2, wherein: the outer circumferential surface of the dustproof ring is provided with a positioning protrusion (54), and the air inlet (21) is provided with a plurality of positioning grooves (22) for embedding the positioning protrusion (54).

4. An air cleaner according to claim 1 or 2, wherein: the sand and dust protection net (52) is obliquely arranged and forms an included angle with the horizontal plane.

5. An air cleaner according to claim 1 or 2, wherein: the dustproof ring comprises a ring body (531) and an air inlet ring (532) used for installing an air inlet net (51), and the air inlet ring (532) is in threaded connection with the ring body (531).