Formaldehyde removal filter screen

Abstract

The utility model discloses a formaldehyde removal filter screen which comprises an inner annular supporting piece and an outer annular supporting piece, a PET (polyethylene terephthalate) filter screen is arranged between the inner annular supporting piece and the outer annular supporting piece, and an activated carbon particle layer for removing formaldehyde is adhered to the surface of the PET filter screen; the inner edge of the PET filter screen abuts against the outer ring face of the inner annular supporting piece, and the inner edge of the PET filter screen abuts against the inner ring face of the outer annular supporting piece. At least three connecting ribs are arranged between the inner annular supporting piece and the outer annular supporting piece, and the bottom of the PET filter screen is attached to the top faces of the connecting ribs. According to the utility model, the structural arrangement is reasonable, the PET filter screen is matched with the activated carbon particle layer, the formaldehyde removal effect can be improved, the connecting ribs are arranged, the PET filter screen can be assembled and positioned, the use stability and reliability can be improved, the filtering effect is good, the applicability is high, and the practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter screen technical field, concretely relates to a formaldehyde filter screen. BACKGROUND

[0002] With people's attention to air quality, formaldehyde pollution also gradually receives people's attention, for indoor space, formaldehyde content in indoor air is high and can affect people's health, in order to reduce indoor formaldehyde pollution, it is usually realized through natural ventilation or mechanical ventilation, fan, purifier and the like are common mechanical ventilation structure, in order to improve formaldehyde removal effect, it generally will have corresponding filter screen, the filter screen in the prior art includes metal or plastic net body, then the metal or plastic net body is attached with adsorbing fluff layer, it can remove formaldehyde, but its removal effect is limited, so that applicability and practicality are limited. SUMMARY

[0003] The utility model aims at providing a formaldehyde filter screen with reasonable structure and good filtering effect.

[0004] The technical scheme for achieving the utility model is a formaldehyde filter screen, including inner annular support and outer annular support, PET filter screen is arranged between the inner annular support and the outer annular support, the surface of the PET filter screen is attached with active carbon particle layer for removing formaldehyde.

[0005] The PET filter screen is arranged in a wave shape, the inner edge of the PET filter screen is positioned on the outer annular surface of the inner annular support and the inner edge is positioned on the inner annular surface of the outer annular support.

[0006] At least three connecting ribs are arranged between the inner annular support and the outer annular support, and the bottom of the PET filter screen is attached to the top surface of the connecting rib.

[0007] Further preferably, the height of the PET filter screen is matched with the height of the inner annular support.

[0008] The height of the inner annular support and the outer annular support is the same.

[0009] Further preferably, the outer annular surface of the inner annular support and the inner annular surface of the outer annular support are both fixed with a bonding layer.

[0010] The end edge of the PET filter screen is bonded and limited on the bonding layer.

[0011] Further preferably, the inner ring of the inner annular support is fixed with a bonding magic tape.

[0012] The inner annular support is installed and positioned through the bonding magic tape.

[0013] It is further preferred that the thickness of the PET filter screen is 0.1-0.3mm.

[0014] The utility model has the positive effect: the utility model discloses the structure setting is reasonable, and it is through PET filter screen cooperation active charcoal granule layer, is favorable to improve formaldehyde removal effect, and it is provided with the connecting batten, is favorable to the assembly and positioning of PET filter screen, is favorable to improve the use stability and reliability, also has good filtering effect simultaneously, and the applicability is strong and practicality is good. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed, wherein:

[0016] Fig. 1 It is the structural schematic diagram of the utility model;

[0017] Fig. 2 It is the specific structural schematic diagram of inner annular support and outer annular support in the utility model;

[0018] Fig. 3 It is the local enlarged structural schematic diagram of the utility model.

[0019] Reference signs: inner annular support 1, outer annular support 2, PET filter screen 3, connecting batten 4, bonding magic tape 5. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model. EMBODIMENT

[0021] See Figs. 1 to 3As shown, a formaldehyde removal filter screen, comprising an inner annular support 1 and an outer annular support 2, a PET filter screen 3 is arranged between the inner annular support and the outer annular support, in the embodiment, the inner annular support and the outer annular support are plastic structures or metal structures, which are mainly used for supporting and limiting the PET filter screen, to ensure the stability and reliability of assembly, and the surface of the PET filter screen is adhered with a layer of activated carbon particles for removing formaldehyde; through the above structure, the formaldehyde removal effect is improved, and the utility is good.

[0022] And in order to improve the stability and reliability of assembly, at least three connecting ribs 4 are arranged between the inner annular support and the outer annular support, and the bottom of the PET filter screen is attached to the top surface of the connecting rib. Through the connecting rib, the stability of the overall structure is improved, and the PET filter screen is supported and limited during assembly, thereby improving the stability and reliability of use.

[0023] In actual application, the height of the PET filter screen is matched with the height of the inner annular support; the heights of the inner annular support and the outer annular support are the same. The outer annular surface of the inner annular support and the inner annular surface of the outer annular support are both fixed with a bonding layer; and the end edge of the PET filter screen is bonded and limited on the bonding layer. Through the above structure, the bonding stability and effectiveness are improved during assembly of the PET filter screen, the assembly efficiency is improved, and the utility is strong.

[0024] In actual application, the inner ring of the inner annular support is fixed with a bonding magic tape 5; and the inner annular support is installed and positioned through the bonding magic tape. The thickness of the PET filter screen is 0.1-0.3mm. The bonding magic tape can improve the stability and reliability of assembly of the overall structure and corresponding machines such as fans, air conditioners, etc.

[0025] The utility model has the positive effect: the structure of the utility model is reasonable, which is beneficial to improve the formaldehyde removal effect through the PET filter screen cooperating with the activated carbon particle layer, and the connecting rib is arranged, which is beneficial to the assembly and positioning of the PET filter screen, and is beneficial to improve the stability and reliability of use, and also has good filtering effect, strong applicability and good utility.

[0026] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description in the specification can also be directly processed without doubt according to the existing technical knowledge, meanwhile, the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt the conventional models in the existing technology, so the specific description is not made here.

[0027] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation to the embodiments of the utility model. For the ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The changes or variations extended from the essential spirit of the utility model and obvious to the skilled in the art still belong to the protection scope of the utility model.

Claims

1. A formaldehyde removal filter, comprising an inner annular support and an outer annular support, characterized in that: A PET filter screen is provided between the inner annular support and the outer annular support, and the surface of the PET filter screen is coated with a layer of activated carbon particles for removing formaldehyde. The PET filter screen is wavy, with its inner edge abutting against the outer ring surface of the inner annular support and its inner edge abutting against the inner ring surface of the outer annular support. At least three connecting ribs are provided between the inner annular support and the outer annular support, and the bottom of the PET filter screen is attached to the top surface of the connecting ribs.

2. The formaldehyde removal filter according to claim 1, characterized in that: The height of the PET filter screen is matched with the height of the inner annular support member; The inner and outer annular support members have the same height.

3. The formaldehyde removal filter according to claim 1, characterized in that: Both the outer ring surface of the inner annular support and the inner ring surface of the outer annular support are fixed with an adhesive layer. The edge of the PET filter screen is bonded and positioned on the adhesive layer.

4. The formaldehyde removal filter according to claim 1, characterized in that: The inner ring of the inner ring support is fixed with adhesive Velcro. The inner annular support is installed and positioned by using adhesive Velcro.

5. A formaldehyde removal filter according to claim 1, characterized in that: The thickness of the PET filter is 0.1-0.3 mm.

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