KR20170004360U - Fully resolvable pocket filter with rigid filter panel - Google Patents

Abstract

The pocket filter 1 comprises a plurality of filter panels 3 each having a peripheral frame 5 fixedly containing and supporting therein a filter means 6, (2) is removably associated with a peripheral support frame (4) of the filter (1) so as to define a single filter body (2) removably insertable into a duct, opening, And has a completely separable peripheral structure of a rectangular cross section. The structure consists of the peripheral support frame (4), which also comprises separate removable components (11, 12) and two filter panels.

Description

Fully resolvable pocket filter with rigid filter panel

The present invention relates to a pocket filter or a rigid pocket filter having a rigid filter panel according to the preamble of the main claim.

As is known, a rigid pocket filter has a large filtering surface, which provides a high filtration efficiency in passing gas fluid, generally air. At the same time, it provides a high capacity to maintain impurities, dust, etc. present in the fluid, high dimensional stability and easy cleaning, thus providing considerable ease of use.

More specifically, a conventional pocket filter comprises a rigid peripheral support frame defining a plurality of filter elements or sheets for each cartridge, each having a large filtering surface. These elements include filter means that can take the form of metal filters, HEPA filters, etc., glass microfiber filters or screens, or other peripherally known filter means, Frame.

The support frame is capable of removably retaining each of the filter elements in such a way that they can be replaced when the filter means is clogged by being held from the passing air.

The support frame and all of the filter elements (generally angled to each other) define a single filter body that can be quickly and easily inserted into the air duct or opening through which the fluid (or other gaseous fluid) flows. The pocket filter is particularly efficient and easy to use, since individual filter elements (generally in the form of panels) can be removed from the support frame if the filter means is dirty.

However, the pocket filter may comprise from several to as many filter elements or panels, so that the filter body may also be significant in size. In any case, there is an undeniable related problem with regard to handling and transport (the support frame is substantially rigid 'box'), as well as the space required for storage prior to use. This is also costly in terms of both transport and storage.

It is an object of the present invention to provide an improved pocket filter for known solutions.

Particularly, it is an object of the present invention to provide a pocket filter which is easy to carry and store but has an optimum filtering ability in use.

Another object is to provide a pocket filter of the type mentioned above which is not costly to manufacture. An additional purpose is to provide a filter of this type that is quick to install.

It is an object of the present invention to provide an improved pocket filter for known solutions.

Particularly, it is an object of the present invention to provide a pocket filter which is easy to carry and store but has an optimum filtering ability in use.

Another object is to provide a pocket filter of the type mentioned above which is not costly to manufacture. An additional purpose is to provide a filter of this type that is quick to install.

These and other objects, which will become apparent to those skilled in the art, are attained by a pocket filter according to the appended claims.

For a better understanding of the present invention, the following drawings are attached by way of purely non-limiting example.

Figure 1 shows a perspective view from below of a pocket filter according to the invention in use position.
Figure 2 shows a top perspective view of the filter of Figure 1 during the replacement phase of some of its components.
Figure 3 shows an enlarged perspective view from the side of the filter of Figure 1 during the assembly step.
Figure 4 shows a perspective view from another angle to that shown in Figure 3;
Figure 5 shows a side perspective view of a further step of the assembly of the filter of Figure 1;
Figure 6 is a top view from another angle of the filter of Figure 1 during assembly.
Figure 7 is an exploded view that is omitted to further clarify a portion of the filter of Figure 1;
Figure 8 shows a perspective view from one side of a portion of the filter of Figure 1;
Figure 9 shows a perspective view from another side of a portion of the filter shown in Figure 8;

Referring to the figure, the pocket filter comprises a filter body 2, generally indicated by the numeral 1, consisting of a plurality of individual filter elements 3 independent of each other, and a support body 2, in which the individual filter elements 3 are removably coupled And a frame (4). Each filter element comprises a peripheral frame 5 (which is generally L-shaped) forming a sheet into which any known type of filter means 6 is inserted. The filter means or the filter 6 is fixed to the frame 5 by, for example, bonding with an adhesive. The filter means 6 (for example a HEPA filter with an antimicrobial coating) is a pleated filter; Preferably a portion of the filter " micro-fold " is separated by the point of the adhesive or a small strip of adhesive (or 'adhesive deposit') to improve the mechanical stability of the filter Its resistance to stress), thereby improving the filtration action on the flow of fluid passing therethrough, reducing the area that can be clogged and saving weight.

In particular, when referring to the inserting direction in the supporting frame 4 and the position in the supporting frame, the peripheral frame 5 has the upper edge 7 (with the bent portion 5A so that the frame 5 has an L shape) A bottom edge 8, and an opposite side 9. The peripheral frame 5 comprises sealing elements 76, 77 arranged at its edges 7, 8.

Unlike the known solution, the support frame 4 is not a rigid box-like body with a peripheral structure defining a sheet for the filter element 3. Conversely, the support frame 4 is defined by only two opposing side components or panels 11, 12, the side components or panels being separate and independent from one another, but with separate filter elements 3 ). ≪ / RTI > Two of these filter elements 3 are arranged at the corresponding free end of the panel or component 11 and form the peripheral structure of the body 2 of the rectangular section comprising all the filter panels 3. Thus, two of the opposite walls of the peripheral structure are defined directly by the filter element 3, and the other walls are defined by the two panels 11, 12 of the frame 4.

In this way, the filter body 2 does not have a predetermined rigid shape but can be completely disassembled into its parts (peripheral structure, support frame and filter element). When disassembled, the filter body can be inserted into a small size box, since all of its parts (components 11, 12 and element 3) are in the form of panels; (E.g., due to the L shape of the frame 5) to occupy less space, or the same parts (e.g., components 11, 12) (E.g., filter element 3) to optimize the storage of many pocket filters and limit the size of the storage facility. To facilitate handling of the various parts of the filter 1, the fixing part (filter means 6) has a different color in the removable parts (components 11, 12, frame 5).

At the same time, as will become clear from what follows, the assembly of the filter body 2 is simple and can be carried out quickly before installation into a duct or opening through which the air to be filtered flows.

More particularly, each side component or panel 11,12 of the filter body 2 has its own main part 17, which is delimited at one free end 17A by a projecting edge 18 Includes a body (16). The main portion has a first side surface 19 and a second side surface 2 which define the inner side of the filter body 2 and are designed to engage directly with the filter element 3. To this end, the second side 20 comprises a recess or seat 20A for these elements 3 appearing as projections 21 on the first side 19 as shown in the figure. It is also possible to see how two adjacent filter elements 3 are arranged at an angle to one another in the figure. A sealing element 88 is disposed along the inner edge of the recess or seat 20A.

In each of the protrusions 21, the protruding edge 18 extends along at least a portion of the protrusions against an opening 26 formed in a corresponding one of the protrusions 21 of the portion 17 of the body 16 of the component An elongated through hole 26 along the longitudinal axis W of the panel or component 11, 12 (or the filter body 2), which is connected to an elongated slot 27 at an angle (for example, at right angles) Respectively.

Each slot 27 is designed to engage a rib 28 projecting from the adjacent side 9,10 of the peripheral frame 5 of the filter element 3 and the projecting rib or projection 28 is designed to engage with the rib 28, The portion 30 projecting transversely with respect to the ribs in Fig. In this way, the protrusions 28 have a substantially T-shaped (or maximum L-shaped) cross-section.

The shape of each protrusion 28 allows the filter element 3 to be coupled to the components 11 and 12 through the opening 26 and the slot 27 to 'configure' or assemble the filter body 2 It is possible to do. The peripheral structure of the filter body 2 is achieved by a simple combination of the element 3 and the two side components or panels 11, 12. This enables rapid assembly of the filter body 2 and also facilitates the storage of the components of the filter 1.

More specifically, for the assembly, each panel or component 11, 12 is brought close to the corresponding side 9, 10 of the frame 5 of the respective filter element 3, 28 are positioned corresponding to the openings 26 in the side components or panels; So that the rib 28 is positioned corresponding to the slot 27. The edge 7 of the element 3 is then pressed and the ribs are slid into the slot 27. It should be noted that the slots are substantially equal in size to the ribs, creating a coupling with a minimum clearance sufficient to facilitate sliding. The protrusions 30 are wider than the ribs and thus are held outside of the slots at the top of the protrusions 21, thus retaining the element 3 connected to the side components or panels.

According to the above procedure, each filter element is associated with a side panel, creating a filter body without the latter having a perimeter structure of the desired shape. If it is necessary to replace the individual filter elements 3, the procedure described above for connecting the individual elements to the side components or panels is reversed.

Due to the fact that the filter elements are independent of each other, the replacement and cleaning of each individual filter element is simple and easy to perform.

A sealing element 40, preferably made of foam or resilient elastic material, is disposed around the filter body 2 such that the body is inserted into an external component associated with the seat, opening or duct or opening of the duct, 2). ≪ / RTI > Because the sealing element 40 is resilient, the filter 1 can be inserted into an external component or opening of a different size, larger or smaller in size, and the various differences in dimensions are caused by the deformation of the element 40, Or to a lesser extent.

In use, when air passes through the filter, it presses the body into or into the external component, compressing the element 40 and creating the necessary seal around the filter body 2.

It should be noted that the pairs of adjacent individual and autonomous filter elements 3 are arranged at an angle with respect to each other. In particular, the filter element 3 is arranged inside the body 2 in such a way that the two elements 3 form a close 'V' at their bottom edge 8 (see FIGS. 1 and 7). Preferably, as described above, at the bottom edge, each filter element 3 comprises a sealing element 77 or, alternatively, in a manner that creates a hermetic seal with the adjacent filter element 3 .

Conversely, successive pairs of filter elements 3 are close to each other at their upper edges 7. As described above, the sealing element 76 is also positioned on the edge 7 to create a hermetic seal on the edge.

Finally, when each element is combined with the panel (as described above), the side 9 of each filter element 3 is sealed with a seal (not shown) provided within the seat 20A of the corresponding side component or panel 11, Is associated with element 88 to create the best airtight seal in the latter.

As described above, the present invention is easy to carry (with the filter body disassembled or detached), easy to store (less space when the body 2 is disassembled), a pocket that is easy to assemble and reliable to use Filter. Transport and storage costs are reduced precisely because the filter body can be disassembled.

A preferred embodiment of the present invention has been described. Those skilled in the art will be able to contemplate additional embodiments based on the foregoing description. For example, the element 3 may still be used in other ways, for example, by engaging and sliding a shape, but using two elements (such as slot 27) Is coupled to the side component or panel 11, 12 by providing an extended blind recess, rather than providing an open slot in one of the elements.

These solutions are also considered to be within the scope of the invention as defined by the following claims.

Claims (12)

A pocket filter (1) comprising a plurality of filter panels (3) each having a peripheral frame (5) fixedly containing and supporting a filter means (6) therein, said panel (3) (2) is removably associated with a peripheral support frame (4) of the filter (1) so as to define a single filter body (2) removably insertable into a duct, opening, In the pocket filter having a completely separable peripheral structure of a rectangular cross section,
Characterized in that the peripheral structure comprises two filter panels (3) and a peripheral support frame (4) which are completely separable from one another, each filter panel of the pocket filter being independent of the filter element (3) Characterized in that the peripheral support frame (4) comprises two side components or panels (11, 12) arranged parallel to each other and independent of one another and connected to each other, the panel or components (11, 12) Defines two sides of the rectangular surrounding structure of the substrate 2,
The panel or components can be joined by a relative connection to the filter element 3 and two of the filter elements 3 define the other two sides of the rectangular surrounding structure of the body 2 Wherein the pocket filter comprises: 2. A filter element according to claim 1, characterized in that the side component or panel (11, 12) is provided with a clearance for the corresponding counter-connecting means (28, 30) (26, 27) of the filter. The filter according to claim 2, characterized in that the connecting means (26, 27) and the counter-connecting means (28, 30) are slidable with respect to each other. 4. A filter element according to claim 3, characterized in that the connecting means is a long sheet (26,27) made on each side component or panel (11,12) of the filter body (2) Is a rib 28 that projects from the side 9 of the frame 5 and which has a transversely projecting portion 30 (see FIG. 3) such that the rib 28 has at least an "L" or "T" And a free end having a free end. 5. A device according to claim 4, wherein each side component or panel (11,12) has a body (16) with a main portion (17) delimited at one free end (17A) by a projecting edge Characterized in that said elongate sheet (26, 27) for a rib (28) having a protruding portion (30) of said filter element (3) is produced in said main portion (17) and said projecting edge filter. 5. The panel according to claim 4, wherein said elongate sheet comprises an elongated through opening (26) along the longitudinal axis (W) of said side component or panel (11, 12) 12) and connected to an elongated slot (27) which is angularly disposed with respect to said through opening (26). A device according to claim 5 or 6, characterized in that the through-opening (26) is made in the protruding edge (18) of the side component or panel (11, 12) and the long slot (27) (21) provided on a first side (19) of said component or panel corresponding to a corresponding sheet for a filter element (3) provided on said filter element (20). The filter of claim 1, comprising a sealing element (40) disposed about the filter body, wherein the sealing element (40) is made of an elastic material. The filter element (3) according to claim 1, characterized in that the filter elements (3) which are independent from one another are arranged angularly to one another in the support frame (4) Characterized in that the bottom edge (8) of the filter element (3) is separate but adjacent to each other and the upper edge (7) of the adjacent pair of filter elements (3) defines a plurality of pairs of V- filter. 2. A filter according to claim 1, characterized in that each side (9) of each filter element (3) is provided with a seal which is impermeable to the gaseous fluid passing through the filter (1) Characterized in that there is an elongate sealing element (50) designed to be produced on the filter. The filter according to claim 1, characterized in that each peripheral frame (5) of the filter element (3) has an L shape. 2. A filter device according to claim 1, characterized in that each filter element (3) comprises a corrugated filter means (6) in which some of the corrugations of the filter means (6) are separated by adhesive deposits, And a filter.

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