CN200951361Y

CN200951361Y - Air filtering device

Info

Publication number: CN200951361Y
Application number: CN 200620138673
Authority: CN
Inventors: 李志武
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-19
Filing date: 2006-09-19
Publication date: 2007-09-26
Anticipated expiration: 2016-09-19

Abstract

The utility model relates to an air filter, which includes a pipe shaped shell, an end cover and two paper filter parts which are coaxially arranged in the shell, and the two ends of the paper filter parts are hermetically connected with the end cover respectively. The utility model has two layers of filter parts, so as to improve the filtration effect of the filter and better purify the air and increase the seal face between the filter part and the end cover, thus avoiding the air short circuit and strengthening the filtration effect.

Description

Air cleaner

Technical field

The utility model relates to a kind of air cleaner, especially adopts the air cleaner of papery filtration members.

Background technology

Air cleaner uses comparatively general, particularly on Agricultural automotive vehicle and the long-distance bus, air is filtered, thereby the air of avoiding having particle enters cylinder, and there is infringement in machine.Also there are a large amount of reports at home and abroad in air cleaner and use, as Chinese patent CN1139884A, a kind of cylindrical air filter and manufacture of casing thereof of radial seal have been introduced, this air cleaner includes the tubular metal housing, plastic end cover and the filter element that have air intlet, air cleaning is had certain effect, yet because filter element only is one, be that air only can once be filtered, effect is bad, simultaneously because the sealing surface of filter element is few, there is the air short circuit phenomenon, is difficult to play a role in filtering.

The utility model content

Technical problem to be solved in the utility model is to propose a kind of air cleaner that is provided with two-layer filter element, can fully purify air.

For this reason, the utility model provides a kind of air cleaner, includes tubular shell, end cap and paper filter spare, and described paper filter spare is provided with two, and two filter elements are coaxial being set in the housing, and their two ends are connected with end cap seal respectively.

Be convenient to change filter element, described paper filter spare is that cassette is connected with end cap.

In order further to strengthen the sealing of filter element and housing, described outer field paper filter spare with the end cap junction, be provided with annular projection vertically; The end cap inner face is provided with corresponding annular recess.

The utility model has following advantage: be provided with two-layer filter element, improve the filter effect of filter, reach better and purify air; The sealing surface of filter element and end cap is increased, avoided the air short circuit, strengthen filter effect.

Description of drawings

Below in conjunction with drawings and embodiments the utility model is described in further detail.

Fig. 1 is the structural representation that partly cuts open of the present utility model;

Fig. 2 is the partial enlarged drawing at I place among Fig. 1;

Fig. 3 is the partial enlarged drawing at II place among Fig. 1.

Wherein: 1: housing 11: air intlet

2: upper end cover 21: air outlet slit

3: bottom end cover 4: inner filter core 5: outer filter core 51: projection

The specific embodiment

A kind of air cleaner shown in Fig. 1,2 and 3, include tubular shell 1, upper end cover 2, bottom end cover 3 and paper filter spare, paper filter spare is provided with two: inner filter core 4 and outer filter core 5, inner filter core 4 and outer filter core 5 are coaxial being set in the housing 1, and their two ends are tightly connected with upper end cover 2 and bottom end cover 3 respectively.Adopt inner filter core 4 and outer filter core 5 double medium filtrations, the air quality after guaranteeing to filter plays a protective role to machinery equipment.

Inner filter core 4 all is to adopt cassette to be connected with upper end cover 4, bottom end cover 5 with outer filter core 5, the edge of filter core is used the rubber material, and the draw-in groove of upper end cover 4 and bottom end cover 5 corresponding use plastic materials, after blocking connection mutually, exist the interior lateral surface of filter core all to combine closely, and play sealing function with end cap; Simultaneously because the papery filter core damages easily, this connection makes more that renew cartridge is very easy to, and is convenient to maintenance.

For fear of the short circuit of air duct, the footpath of filter core 5 one ends upwards is provided with annular projection 51 outside, and the end cap inner face is provided with corresponding annular recess, when outer filter core 5 is stuck in the end cap, protruding 51 also is stuck in the groove simultaneously, plays the sealing of filter core and end cap better.

Housing 1 dashes at distance air opening end 13mm place periphery 8 monolateral depression otch that inwardly turn over dark 1mm, during assembling, the discharge pipe external diameter is pressed in the housing 1 after scribbling ageing-resistant fluid sealant, turns over otch in the housing 1 and snaps in corresponding 8 grooves of upper end cover 2 external diameters, reaches the fixing seal effect.The outside of bottom end cover 3 is welded with 3 axis pin bases that are mutually angle 120 degree, the slip-knot bolt of 3 rotating M8 is housed on the axle bed, be rotary with steel mold insert nut on the bolt, be the enhancing nylon of protruding sphere below, when packing bottom end cover 3 into, 3 slip-knot bolts enter in the groove that the spill sphere is arranged above the bottom end cover 3, tighten knob then and finish sealing.

The air that has dirt is entered by air intlet 11, and after filtering through outer filter core 5, inner filter core 4, airborne particle obtains filtering and stays, and the air that purifies flows out and enters in the machine from air outlet slit 21.

Claims

1, a kind of air cleaner includes tubular shell, end cap and paper filter spare, it is characterized in that: described paper filter spare is provided with two, and two filter elements are coaxial being set in the housing, and their two ends are connected with end cap seal respectively.

2, air cleaner according to claim 1 is characterized in that: described paper filter spare is that cassette is connected with end cap.

3, air cleaner according to claim 2 is characterized in that: described outer field paper filter spare with the end cap junction, be provided with annular projection vertically; The end cap inner face is provided with corresponding annular recess.