CN201140004Y - Filter - Google Patents

Abstract

The utility model relates to a filter which comprises a filter element. The filter element is a circular ring folded and enclosed by filter paper. The filter paper is provided with a plurality of mutually parallel creases, gaps among the crease are in separated wide-narrow-wide-narrow arrangement, after bending projections are formed in separated high-low-high-low arrangement, namely in the shape of an M, and in the circular ring filter element folded and enclosed by the filter paper, one edge of a low projection is located at the outer side of the filter element, therefore, the structure of the filter element can enlarge filter area passed by fluids which need filtration, thereby better filtering out impurities and prolonging service life.

Description

A kind of filter

Technical field

The utility model relates to a kind of filter, more particularly, relates to a kind of inner pressed filter that uses filter core.

Background technology

Filter is a kind of engineering goods commonly used in the production equipment, and it can filter water, oil, air or other fluids.In various filters, a kind of inner pressed filter is arranged, this filter is the fluid that need filter to be acted on the filter paper that passes filter core by interior pressure flowed out by sidewall again.As Fig. 1, shown in 2, the filter core 20 excessively that uses in this filter at present generally is the water by polyester fiber or wooden oar, oil, air paper is made, the shape of crossing filter core 20 normally is folded into folding length equal and opposite in direction or not equidistant refill by machinery or staff, be placed on then in the filter of cylinder 25, along the circumferential direction arrange, have the annular tube 15 of the fluid that inflow need filter in the centre of filter, flowed to filter core 20 by the aperture 21 on annular tube 15 walls again, passed through the orifice flow that flows to again on cylinder 25 and the process cylinder 25 after the filtration of filter core 20 and go out.Because the whole filter core 20 of crossing be an annular, has caused the cylindrical place gauffer of annulus less, the filter area that the fluid that making needs to filter passes is less, makes filter effect good inadequately, preferably elimination impurity with increase the service life.Reference numeral 10 is the lid of this filter.Be this expanded view of crossing filter core as shown in Figure 3.

The utility model content

The technical problems to be solved in the utility model is, less thereby elimination impurity and the defective that increases the service life preferably at the above-mentioned filter area of prior art, a kind of filter that uses different filter cores is provided, this filter core makes that for the improvement to the structure of original refill the filter area of filter core obtains increasing, and the advantage that can carry out good impurity filtering and increase the service life, thereby can filter by convection cell.

The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of filter, comprise at least one filter core, described filter core is the folding annulus that surrounds of filter paper, described filter paper is provided with many folding lines that are parallel to each other, spacing between each folding line is wide, narrow/wide, narrow being spaced, and folding back forms high, short, high, short spaced projection; Be rendered as M type equal and opposite in direction or not equidistant beginning.In the folding filter core that surrounds of described filter paper, one side the outside that is positioned at filter core of described short projection.

In filter described in the utility model, the height of described short projection is 20% to 80% of a high rising height.

In filter described in the utility model, described filter core is the filter core that single-part stationery or multi-ply paper are made.Implement filter of the present utility model, have following beneficial effect:

This filter is by being provided with many folding lines that are parallel to each other on the filter core of filter, the spacing between each folding line is wide, narrow/wide, narrow being spaced, and folding back forms high, short, high, short spaced projection; In the folding annulus filter core that surrounds of described filter paper, one side the outside that is positioned at filter core of described short projection.Such structure can increase fluid need pass reinforced filter area, thereby makes impurity by the advantage of filtering preferably and increasing the service life.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is existing structure of filter schematic diagram;

Fig. 2 is the A portion enlarged diagram of Fig. 1;

Fig. 3 is the expansion schematic diagram of the filter core of existing filter;

Fig. 4 is a structure of filter schematic diagram of the present utility model;

Fig. 5 is the vertical view of filter core of the present utility model;

Fig. 6 is that the filter core of Fig. 5 launches schematic diagram.

The specific embodiment

To shown in Figure 6, in filter of the present utility model, cylinder 25 is same as the prior art as Fig. 4.Below lid 10, be fixed with annular post 45, also be fixed with annular post 46 in cylinder 25 the insides and the body concentric place of cylinder, annular post 45, annular post 46 equal and opposite in directions, and uniform many apertures on the circle wall, and annular filter core 30 of the present utility model forms by the paper that many folding lines that are parallel to each other are arranged is folding, spacing between each folding line is wide, narrow, wide, narrow being spaced, folding back forms high projection 50, short projection 40, high projection 50, short projection 40 is spaced, promptly be M type shape, one side and the outside that is positioned at filter core of short projection 40.When foldable filter element 30, will increase the gauffer of paper like this, also the filter area of flowing through with regard to the fluid that need are filtered increases, thereby filters fluid better.Usually the height of preferred short projection is 20% to 80% of a high rising height.

In addition, the filter core 30 of the utility model filter can be made up of one or several filter cores shown in Figure 5, and in order to filter fluid better, can also more filter core can also be installed again 30 li of filter cores shown in Figure 3, the filter core of being installed can be plural filter core of the present utility model, also can be the combination of filter core of the present utility model and traditional filter core, comprise outer at least one traditional filter core internal layer at least one filter core of the present utility model or outer at least one filter core internal layer of the present utility model be at least one traditional filter core.And filter core 30 can also select for use single-part stationery or multi-ply paper to make.

Claims (3)

1, a kind of filter comprises at least one filter core, and described filter core is the folding annulus that surrounds of filter paper, it is characterized in that,

Described filter paper is provided with many folding lines that are parallel to each other, and the spacing between each folding line is wide, narrow/wide, narrow being spaced, and folding back forms high, short, high, short spaced projection;

In the folding filter core that surrounds of described filter paper, one side the outside that is positioned at filter core of described short projection.

2, filter according to claim 1 is characterized in that, the height of described short projection is 20% to 80% of a high rising height.

3, filter according to claim 1 is characterized in that, described filter core is the filter core that single-part stationery or multi-ply paper are made.

Images