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CN-224221027-U - Removable formula compound filter screen

CN224221027UCN 224221027 UCN224221027 UCN 224221027UCN-224221027-U

Abstract

The utility model discloses a replaceable composite filter screen, which comprises a paper frame provided with a mounting cavity, wherein a honeycomb interlayer and a composite filter core layer are paved in the mounting cavity, the honeycomb interlayer is paved at the bottom of the mounting cavity, the composite filter core layer is paved on the honeycomb interlayer, the section of the composite filter core layer is wavy, the paper frame is wrapped with hard foam, an annular frame component is attached between the inner wall of the mounting cavity and the outer wall of the composite filter core layer, the bottom of the annular frame component is in supporting fit with the honeycomb interlayer, a filter screen plate is arranged on the annular frame component, and a handle is arranged at one end of the filter screen plate, which is far away from the filter screen plate. The multi-stage filter has the effects of improving the filtering performance by multi-stage filtration and facilitating the replacement of the filter element, the filter screen and the honeycomb interlayer.

Inventors

  • LIN GUOFU

Assignees

  • 垠雨医疗科技(浙江)有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (10)

  1. 1. The replaceable composite filter screen comprises a paper frame (1) provided with a mounting cavity (10), and is characterized in that a honeycomb interlayer (2) and a composite filter core layer (3) are paved in the mounting cavity (10), the honeycomb interlayer (2) is paved at the bottom of the mounting cavity (10), the composite filter core layer (3) is paved on the honeycomb interlayer (2), the cross section of the composite filter core layer (3) is wavy, hard foam (4) is wrapped outside the paper frame (1), an annular frame component (5) is attached between the inner wall of the mounting cavity (10) and the outer wall of the composite filter core layer (3), the bottom of the annular frame component (5) is in supporting fit with the honeycomb interlayer (2), a filter screen plate (6) is arranged on the annular frame component (5), and one end, far away from the filter screen plate (6), of the filter screen plate (6) is provided with a handle (8).
  2. 2. The replaceable composite filter screen of claim 1, wherein the honeycomb interlayer (2) comprises a honeycomb plate (21) and honeycomb mesh cloth (22) attached to the upper end face and the lower end face of the honeycomb plate (21), and the honeycomb plate (21) is formed by compositing a plastic honeycomb carrier and activated carbon particles.
  3. 3. The replaceable composite filter screen of claim 1, wherein the annular frame assembly (5) comprises two short side strips (51) and two long side strips (52), the two short side strips (51) are oppositely arranged in the width direction of the composite filter element layer (3), and the two long side strips (52) are oppositely arranged in the length direction of the composite filter element.
  4. 4. A replaceable composite filter screen according to claim 1, wherein the filter screen plate (6) comprises a U-shaped bracket (61) and a mesh part (62) arranged in the U-shaped bracket (61).
  5. 5. A replaceable composite filter screen according to claim 4, wherein the edge of the mesh portion (62) is bonded to the annular frame member (5) by means of an adhesive strip (7).
  6. 6. The replaceable composite filter screen of claim 4, wherein a U-shaped iron strip (611) is embedded on one side of the U-shaped support (61) facing the annular frame assembly (5), a U-shaped magnet (41) is embedded on the surface of the hard foam (4) corresponding to the U-shaped iron strip (611), and the U-shaped magnet (41) is in adsorption fit with the U-shaped iron strip (611).
  7. 7. The replaceable composite filter screen of claim 1, wherein the hard foam (4) is provided with a plurality of rubber bands (42) corresponding to the filter screen plate (6), the rubber bands (42) are symmetrically arranged on the hard foam (4), and the rubber bands (42) are used for pressing the filter screen plate (6) on the composite filter element layer (3).
  8. 8. The replaceable composite filter screen of claim 7, wherein the hard foam (4) is provided with a plurality of stoppers (43) corresponding to the filter screen plate (6), and the stoppers (43) are matched with the rubber band (42) to limit the filter screen plate (6) from sliding relative to the hard foam (4).
  9. 9. The replaceable composite filter screen of claim 1, wherein elastic supporting pieces (44) are arranged on two sides of the hard foam (4), the elastic supporting pieces (44) are arch-shaped, and each elastic supporting piece (44) comprises a supporting section (441) in the middle and elastic deformation sections (442) which are positioned on two sides of the supporting section (441) and fixedly connected with the paper frame (1).
  10. 10. The replaceable composite filter screen of claim 1, wherein the handle (8) is made of flexible cloth, the outer surface of the handle (8) is a rough surface (81), the paper frame (1) is provided with a hook surface (11) corresponding to the handle (8), and the rough surface (81) is in adhesion fit with the hook surface (11).

Description

Removable formula compound filter screen Technical Field The utility model relates to the technical field of air filter elements, in particular to a replaceable composite filter screen. Background The prior Chinese patent with publication number of CN222586027U discloses a vehicle-mounted activated carbon filter element for air purification, wherein the activated carbon filter element comprises a main body and through holes, the through holes are arranged in the main body in an array manner, the through holes are straight through holes, the main body is made of activated carbon materials, and the activated carbon filter element is integrally formed. However, the active carbon filter element has the following defects that the main body of the filter element is integrally formed by adopting an active carbon material, multi-stage filtration cannot be realized, the filtration effect is not good enough, and improvement is needed. Disclosure of utility model The utility model aims to provide a replaceable composite filter screen, which has the effects of improving the filtering performance of multistage filtration and facilitating the replacement of a filter element, a filter screen and a honeycomb interlayer. The technical aim of the utility model is achieved by the following technical scheme that the replaceable composite filter screen comprises a paper frame provided with an installation cavity, a honeycomb interlayer and a composite filter core layer are paved in the installation cavity, the honeycomb interlayer is paved at the bottom of the installation cavity, the composite filter core layer is paved on the honeycomb interlayer, the cross section of the composite filter core layer is wavy, the paper frame is wrapped with hard foam, an annular frame component is attached between the inner wall of the installation cavity and the outer wall of the composite filter core layer, the bottom of the annular frame component is in supporting fit with the honeycomb interlayer, a filter screen plate is arranged on the annular frame component, and a handle is arranged at one end of the filter screen plate far away from the filter screen plate. Through the technical scheme, a user can conveniently and quickly pull out the composite filter screen in the installation position of the air purification equipment by utilizing the lifting handle, air flow is filtered through the primary filter screen plate and then filtered through the composite filter element layer and the honeycomb interlayer for multiple times to obtain clean air, and the filter screen plate, the composite filter element layer and the honeycomb interlayer are convenient to take out from the installation cavity of the paper frame for replacement, so that the air purification equipment has the effects of improving the filtering performance by multistage filtration and facilitating replacement of the filter element, the filter screen and the honeycomb interlayer. The honeycomb sandwich layer comprises a honeycomb plate and honeycomb net cloth attached to the upper end face and the lower end face of the honeycomb plate, and the honeycomb plate is formed by compounding a plastic honeycomb carrier and activated carbon particles. Through adopting above-mentioned technical scheme, adopt the honeycomb panel that activated carbon particle complex formed at honeycomb carrier both ends face, air permeability is good and impurity adsorption effect is good, and the honeycomb screen cloth of both sides also can further improve the isolation effect to the dust. The annular frame assembly comprises two short side strips and two long side strips, wherein the two short side strips are oppositely arranged in the width direction of the composite filter element layer, and the two long side strips are oppositely arranged in the length direction of the composite filter element layer. Through adopting above-mentioned technical scheme, annular frame subassembly can fix a position compound filter core, reduces the rocking range that compound filter core produced in the installation cavity. The utility model further provides that the filter screen plate comprises a U-shaped bracket and a net weaving part arranged in the U-shaped bracket. Through adopting above-mentioned technical scheme, U type support can improve the structural strength of filter screen board, prolongs the life of filter screen board. The utility model is further arranged that the edge of the mesh part is adhered with the annular frame component through an adhesive tape. Through adopting above-mentioned technical scheme, the interpolation of adhesive tape is established, can improve the connection steadiness between filter screen plate and the annular frame subassembly. The utility model is further characterized in that a U-shaped iron strip is embedded on one side, facing the annular frame assembly, of the U-shaped support, a U-shaped magnet is embedded on the surface of the hard foam corresponding to the U-shaped iro