CN206637817U - Filter screen structure - Google Patents

Abstract

A filter screen structure is provided with a filter layer, a judging part is arranged on a visual position on the filter layer in a covering mode, the covering area of the judging part is smaller than the whole area of the filter layer, the judging part and the filter layer can be distinguished by naked eyes, and the degree of shielding the judging part by dust is used as a basis for judging that the filter layer is dirty.

Description

Filter structure

technical field

The utility model is related to the structure of the air filter, in particular to a filter structure which can be used by users to quickly judge the degree of dirt of the filter.

Background technique

Air cleaners, air conditioners or car air filters use filters to filter the air, so as to filter out dust and impurities and achieve the purpose of purifying the air. The filtered dust and impurities remain on the filter screen. When too much dust accumulates, the filtering effect of the filter screen will decrease. At this time, a new filter screen needs to be replaced to maintain a good filtering effect.

However, there is no criterion for judging how much dust must accumulate on the filter when it is time to replace a new filter. Some users will continue to use it in order to save the cost of replacement, and some users will replace it too frequently. The above two situations are respectively It has disadvantages such as deterioration of filtering effect and waste of replacement cost. Therefore, the existing filter screen structure must be improved to make it easy to judge whether it needs to be replaced. Moreover, there are also commonly used filters on the market that add activated carbon to enhance its filtering effect. However, due to the addition of activated carbon, this type of activated carbon filter will appear black and gray after it is made, which will cause users to It is not easy to judge the degree of dirtiness of the filter screen.

Utility model content

The purpose of this utility model is to provide a filter screen structure, which is provided with a judging part on the filter layer, so that the user can use the extent to which the dust covers the judging part as a basis for whether to replace the filter screen.

To achieve the above object, the utility model takes the following technical solutions:

The utility model provides a filter screen structure, which includes:

A filter body with a filter layer;

A judging part is covered on a visible position on the filter layer of the filter body, the covering area of the judging part is smaller than the overall area of the filtering layer, and the judging part and the filtering layer can be distinguished by naked eyes, and the dust can pass through The degree of shielding the judging portion is used as a basis for judging that the filter layer is dirty.

Preferably, the judging portion is formed by a printing layer printed on the surface of the filter layer.

Preferably, the judging portion is formed by a sticker pasted on the surface of the filter layer.

Preferably, the filter layer is further provided with a contrasting portion beside the judging portion, the covering area of the contrasting portion is smaller than the entire area of the filtering layer, and the contrasting portion is preset with a color of a specific depth. And further, the contrast part can be formed by a printing layer printed on the surface of the filter layer or a sticker pasted on the surface of the filter layer.

The beneficial effects of the utility model are: the filter screen structure of the utility model is provided with a judging part on the filter layer, so that the user can use the extent to which the dust covers the judging part as a basis for whether to replace the filter screen, and the judgment is more convenient ,precise.

And above-mentioned purpose and advantage of the present utility model, it is not difficult to obtain in-depth understanding from the detailed description of the following selected embodiments and accompanying drawings.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the utility model.

FIG. 2 is a schematic cross-sectional view of line A-A in FIG. 1 .

Fig. 3 is a schematic diagram of the utility model used in an air conditioner.

Fig. 4 is a schematic diagram of the utility model used in an air purifier.

Fig. 5 is a schematic diagram of the utility model used in a vehicle air filter.

Fig. 6 is a schematic view of the usage state of the present invention, which is used to show the state when the dust gradually covers the judging part.

Fig. 7 is a schematic structural diagram of the second embodiment of the present invention.

Fig. 8 is a schematic perspective view of a third embodiment of the present invention.

detailed description

Please refer to Fig. 1 and Fig. 2, the person shown is the first embodiment of the filter screen structure provided by the utility model, which mainly includes a filter screen body 1, and the filter screen body 1 has a filter layer 11, wherein the filter layer 11 can be made of non-woven material. The filter layer 11 is continuously bent to form waves, thereby increasing the area of the filter body 1 for filtering air within a unit length and increasing the filtering effect.

On top of that, a judging portion 21 is covered at a visually visible position on the surface of the filter layer 11. The covered area of the judging portion 21 is smaller than the overall area of the filtering layer 11, and the judging portion 21 can be distinguished from the judging portion 21 with the naked eye. The filter layer 11 can be used as a basis for judging that the filter layer 11 is dirty by the degree of dust covering the judging portion 21 , and can be used for the user to decide whether to replace the filter body. In this first embodiment, the judging portion 21 is formed by screen printing on the surface of the filter layer 11 to form a strip-shaped printing layer that can be clearly distinguished from the filter layer 11; further In order to allow users to clearly distinguish the filter layer 11 and the judging portion 21, the judging portion 21 made of a printed layer can be made to have a different color or different shade from the filter layer 11, so that the user can quickly distinguish the judging portion 21 with the naked eye. Filter layer 11 and this judging part, and judge its degree of dirt.

The utility model composed of the above-mentioned components and configurations can be used for the air conditioner 3 as shown in FIG. 3 , the air cleaner 4 as shown in FIG. 4 or the vehicle air filter 5 as shown in FIG. 5 . While the filter screen body 1 is in use, the dust 9 filtered by the filter screen body 1 will accumulate in the filter layer 11, thus forming a phenomenon that the dust 9 gradually covers the judging portion 21 as shown in Figure 6; After using for a period of time, the accumulated dust 9 gradually increases, so that the degree of covering of the judging portion 21 gradually increases, and the user can decide whether to replace a new product according to the degree of covering of the judging portion 21 . For example, when the judging part 21 is completely covered by the dust 9, resulting in exceeding the visibility of the judging part 21, it means that the accumulated dust 9 is too much, enough to affect the filtering effect, and the user can quickly judge whether the filtering effect is correct. Net body 11 must be replaced immediately, so as not to affect health. Accordingly, the utility model uses the extent of the judging part 21 being covered by the dust 9 as a criterion for judging whether it is dirty and needs to be replaced, so that a good balance can be achieved between the filtering performance and the replacement cost.

Also as shown in FIG. 7 , the second embodiment provided by the present invention differs from the above-mentioned first embodiment in that the judging part 21B can also be constituted by a sticker. By pasting the sticker on the visible surface of the filter layer 11, the dust 9 will gradually accumulate and cover the sticker during the use of the filter body 1, so as to achieve the same effect as the previous embodiment . Of course, the judging portion 21B formed by stickers in this embodiment can also be made to have a different color or shade from the filter layer 11 during manufacture, so as to facilitate subsequent judgment by users.

Then please continue to refer to FIG. 8 , which is the third embodiment provided by the present invention, wherein the filter body 1 has a filter layer 11 , and a visible position is covered on the surface of the filter layer 11 . A judging part 21 and a comparison part 22, the covering areas of the judging part 21 and the comparing part 22 are respectively smaller than the overall area of the filter layer 11, and the comparing part 22 is preset with a color of a specific depth, so that It is used as a reference for the user to compare whether the judging part 21 is dirty. That is, when the dust covered on the judgment part 21 reaches the preset color of the comparison part 22, the user can quickly judge that the filter main body 11 must be replaced immediately. Furthermore, the contrast portion 22 can also be formed by another printing layer printed on the surface of the filter layer 11 , or by another sticker pasted on the surface of the filter layer 11 .

The disclosure of the above embodiments is only used to illustrate the utility model, not to limit the utility model, so any replacement of equivalent components should still belong to the category of the utility model.

To sum up, those who are familiar with this art can understand that the utility model can really achieve the above-mentioned purpose, and it actually complies with the provisions of the patent law, so the application is filed according to the law.

Claims (6)

1. A strainer structure, characterized in that it comprises: A filter body with a filter layer; A judging part is covered on a visible position on the filter layer of the filter body, the covered area of the judging part is smaller than the overall area of the filtering layer, and the judging part and the filtering layer can be distinguished by naked eyes. The extent to which dust covers the judging portion is used as a basis for judging that the filter layer is dirty. 2 . The filter structure according to claim 1 , wherein the judging portion is formed by a printing layer printed on the surface of the filter layer. 3 . 3. The filter screen structure according to claim 1, wherein the judging part is formed by a sticker pasted on the surface of the filter layer. 4. The filter screen structure according to claim 1, wherein the filtering layer is covered with a contrasting portion beside the judging portion, and the covering area of the contrasting portion is smaller than the entire area of the filtering layer , and the contrast part is preset with a color of a specific depth. 5 . The filter screen structure according to claim 4 , wherein the contrast portion is formed by a second printing layer printed on the surface of the filter layer. 5 . 6 . The filter screen structure according to claim 4 , wherein the contrast portion is formed by a sticker pasted on the surface of the filter layer. 7 .