CN203291596U

CN203291596U - Filter core

Info

Publication number: CN203291596U
Application number: CN2013203480798U
Authority: CN
Inventors: 茹凤虎; 苏永旺; 王栋
Original assignee: INNER MONGOLIA DAYU WATER-SAVING TECHNOLOGY Co Ltd
Current assignee: INNER MONGOLIA DAYU WATER-SAVING TECHNOLOGY Co Ltd
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2013-11-20
Anticipated expiration: 2023-06-18

Abstract

The utility model discloses a filter core comprising a filter tube and a built-in frame arranged in the filter tube in a detachable manner. One end of the built-in frame is provided with a clamping opening, and the other of the built-in frame is provided with projections matching with clamping openings when two built-in frames are abutted. The part, contacting with the filter tube, of the built-in frame is an arc surface. According to the filter core, the clamping openings and the projections are matched to connect adjacent single-segment filter cores and can be unscrewed easily when the single-segment filter core deforms, so that damaged single-segment filter core can be changed and repaired more conveniently and rapidly, and using cost can be reduced; the part, contacting with the filter tube, of the built-in frame is the arc surface, the filter tube fits with the arc surface, so that the filter is prevented from being cut by corners of the built-in frame when pressure difference inside and outside the filter is excess.

Description

Filter web-roll core

Technical field

The utility model relates to a kind of filter, particularly a kind of filtration web-roll core.

Background technology

Filter is widely used in modern agriculture is irrigated, well strainer especially, and the filter effect of well strainer depends primarily on the filtration web-roll core, and filtering web-roll core is all moulding mostly.Injection moulding is filtered web-roll core in use, all the single-unit web-roll core by bonding or be threaded and be used in combination, in use, often occur that one in the filtration web-roll core saves or the situation of a few joint filter screen breakage, at this moment when maintenance, only need to change the filter screen of damage, and need not love and respect that, filter the web-roll core integral replacing.

Yet the filtration web-roll core for each joint adopts bonding way to connect, have again each single-unit not split, and therefore when changing filter screen, can only will filter the web-roll core integral replacing.For the filtration web-roll core that adopts thread connecting mode because the single-unit web-roll core in the course of the work deformation can occur, and there is magazine to be deposited on threaded connection place, when changing web-roll core, due to web-roll core generation deformation and Impurity deposition, the threaded joints of outwarding winding is very difficult, and, when outwarding winding web-roll core, likely can damage intact web-roll core.Therefore filtration web-roll core of the prior art exists open defect in replacing aspect safeguarding.

And filter web-roll core in the course of the work due to the pressure reduction that exists inside and outside filter screen, gauze can tightly be attached on the skeleton of web-roll core, and skeleton is mostly moulding, if the pressure reduction inside and outside filter screen is excessive, filter screen skeleton corner angle can be cut gauze to cause filtering and lose efficacy.

The utility model content

In view of this, the purpose of this utility model is to provide a kind of filtration web-roll core, to solve, existing filter defect and the filter screen that web-roll core exists aspect safeguarding in replacing and easily by the web-roll core skeleton, is cut the defect of inefficacy.

The utility model filters web-roll core, comprise screen tube and be arranged at removably the internal frame in screen tube, one end of described internal frame is provided with bayonet socket, and the other end of described internal frame is provided with when two internal frame docking and the projection of bayonet fittings.

Further, described bayonet socket is L shaped.

Further, the position that contacts with screen tube of described internal frame is arc surface.

Further, described screen tube is comprised of steel wire and the plastics that are wrapped on steel wire.

Further, described internal frame is the lattice-shaped that is made of plastics.

The beneficial effects of the utility model:

1, the utility model filters web-roll core, it adopts bayonet socket and projection to coordinate to be connected adjacent single-unit and filters web-roll core, bayonet socket and projection also can easily be outwarded winding under single-unit filtration web-roll core deforms situation, make that the single-unit of breakage is filtered to the repair and replacement of web-roll core is more convenient, be conducive to reduce use cost.

2, the utility model filters web-roll core, and its screen tube and internal frame are the two parts that are separated from each other, and therefore at filter screen, damages and only needs to change screen tube, and internal frame, without replacing, has reduced use cost.

3, the utility model filters web-roll core, and its internal frame and screen tube contact site are arc surface, and screen tube is attached on arc surface, not there will be in the excessive situation of filter screen inside and outside differential pressure the situation that filter screen is cut by the internal frame corner angle.

4, the utility model filters web-roll core, and internal frame is arranged on screen tube inside, while cleaning filter screen, is not subjected to the impact of internal frame, easy to clean.

The accompanying drawing explanation

Fig. 1 is the utility model screen pack cored structure schematic diagram;

Fig. 2 is the internal frame structural representation;

Fig. 3 is the screen tube structural representation.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

As shown in the figure, the present embodiment filters web-roll core, comprise screen tube 1 and be arranged at removably the internal frame 2 in screen tube, an end of described internal frame 2 is provided with bayonet socket 3, and the other end of described internal frame 2 is provided with the projection 4 that coordinates with bayonet socket 3 when two internal frame docking.During use, the projection of a joint internal frame 24 is inserted in the bayonet socket 3 of another joint internal frame 2, can easily each single-unit be filtered to web-roll core and be linked to be integral body.When wherein a certain joint or a few joint filter the filter screen generation breakage of web-roll core, projection 4, from bayonet socket 3, screwing out, can be changed the filtration web-roll core that damages; And bayonet socket 3 and projection 4 also can easily be outwarded winding under single-unit filtration web-roll core deforms situation, and this makes the repair and replacement of filtering web-roll core very convenient quick, is conducive to reduce use cost.

As the improvement to this enforcement, described bayonet socket 3 is L shaped, and described projection 4 is cylindrical, and both split very convenient; Certainly in different embodiments, described bayonet socket 3 also can be other shape, and as can be for hook-shaped, the connection of bayonet socket 3 and projection 4 will be more reliable like this.

As the improvement to this enforcement, the position that described internal frame 2 contacts with screen tube 1 is arc surface, contact site is without corner angle, filter screen is attached on arc surface, not there will be in the excessive situation of filter screen inside and outside differential pressure, the situation that filter screen is cut by internal frame 2 corner angle, be conducive to improve the service life of filtering web-roll core.

As the improvement to this enforcement, described screen tube 1 is comprised of steel wire and the plastics that are wrapped on steel wire, and in concrete enforcement, steel wire is linked to be the tubular overall structure by welding, and plastics are wrapped in outside steel wire by Shooting Technique; Steel wire makes the intensity of screen tube 1 good, and plastics strengthen the resistance to corrosion of screen tube 1 simultaneously, and both are in conjunction with making the longer with the life-span of screen tube 1.

As the improvement to the present embodiment, described internal frame 2 is lattice-shaped for the lattice-shaped internal frame that is made of plastics, and structural strength is good, not perishable and damage, and little to resistance to water-flow.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims

1. one kind is filtered web-roll core, it is characterized in that: comprise screen tube and be arranged at removably the internal frame in screen tube, one end of described internal frame is provided with bayonet socket, and the other end of described internal frame is provided with when two internal frame docking and the projection of bayonet fittings.

2. filtration web-roll core according to claim 1, it is characterized in that: described bayonet socket is L shaped.

3. filtration web-roll core according to claim 1, it is characterized in that: the position that described internal frame contacts with screen tube is arc surface.

4. arbitrary described filtration web-roll core according to claim 1-3 is characterized in that: described screen tube is comprised of steel wire and the plastics that are wrapped on steel wire.

5. filtration web-roll core according to claim 4, it is characterized in that: described internal frame is the lattice-shaped that is made of plastics.