Wrinkle type filter cotton

Abstract

A wrinkle type filter cotton comprises an upper cotton cloth layer and a middle cotton cloth layer, and is characterized in that an upper filter cotton layer is arranged between the upper cotton cloth layer and the middle cotton cloth layer, a lower cotton cloth layer is arranged below the middle cotton cloth layer, a lower filter cotton layer is arranged between the lower cotton cloth layer and the middle cotton cloth layer, and the upper filter cotton layer and the lower filter cotton layer are both corrugated. The peripheries of the upper cotton cloth layer and the lower cotton cloth layer are sewn together through sewing edge cloth and sewing threads; and the folds of the upper filter cotton layer and the lower filter cotton layer are arranged at 90 degrees. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of filtration technology, and in particular relates to a pleated filter cotton. Background Technology

[0002] The term "filter cotton" has a broad scope, but it generally refers to air filtration. Air contains a large number of dust particles (such as dust, grime, smoke, mineral dust, sand, powder, etc.). Because these dust particles are very light, when flowing air acts on them, it cancels out their weight, causing them to float. Only in a relatively enclosed space where the air is relatively still will the dust fall to the ground under the influence of gravity. This is why a thick layer of dust will appear on furniture and the floor after a period of time in a room with closed doors and windows and no one living there. Dust in the air falling onto the rotating parts of a machine will accelerate the wear and tear of those parts, reducing the machine's precision and lifespan. Dust filling the workshop can reduce visibility, affect vision, hinder operation, reduce labor productivity, and even cause accidents. Therefore, it is necessary to filter out dust from the air through a filtration device. Existing air filters generally fill the housing with filter cotton. However, if the filter cotton is filled too little, the filtration effect is poor. If the filter cotton is filled too much, the airflow will be affected due to the small filter gaps. Moreover, as more and more dust accumulates on the filter cotton, it will often clog the filter cotton. Utility Model Content

[0003] This invention addresses the technical problem of clogging in existing filter cotton during use by providing a pleated filter cotton, comprising an upper cotton cloth layer and a middle cotton cloth layer. An upper filter cotton layer is positioned between the upper and middle cotton cloth layers, and a lower cotton cloth layer is positioned below the middle cotton cloth layer. A lower filter cotton layer is positioned between the lower and middle cotton cloth layers. Both the upper and lower filter cotton layers are corrugated, which increases their filtration area. Furthermore, when dust accumulates on the upper and lower filter cotton layers, it falls into the bending grooves under gravity, reducing cleaning frequency and increasing service life. The pleats in the upper and lower filter cotton layers are set at 90°, enhancing their resilience and reducing collapse. The upper and lower filter cotton layers can be made of synthetic fiber, non-woven fabric, glass fiber, or activated carbon, depending on the filter cotton material. Furthermore, the upper cotton fabric layer and the lower cotton fabric layer are sewn together around their perimeters using sewing edge fabric and sewing thread.

[0004] Preferably, the filtration gaps on the upper filter cotton layer are larger than those on the lower filter cotton layer.

[0005] Preferably, the highest point of the top of the upper filter cotton layer is adhered to the bottom of the upper cotton cloth layer; the lowest point of the bottom of the upper filter cotton layer is adhered to the top of the middle cotton cloth layer, thereby reducing the movement of the upper filter cotton layer between the upper and middle cotton cloth layers and increasing its stability.

[0006] Preferably, the highest point of the bottom filter cotton layer is adhered to the bottom of the middle cotton fabric layer; the lowest point of the bottom of the bottom filter cotton layer is adhered to the top of the bottom cotton fabric layer, thereby reducing the movement of the bottom filter cotton layer between the bottom and middle cotton fabric layers and increasing its stability.

[0007] The above-mentioned approach has the following advantages:

[0008] Both the upper and lower filter cotton layers are corrugated. This corrugation increases the filtration area of ​​the upper and lower filter cotton layers. When dust accumulates on the upper and lower filter cotton layers, it falls into the bending grooves of the upper and lower filter cotton layers under the action of gravity, reducing the number of cleaning cycles and increasing service life. The upper and lower filter cotton layers are also bonded to the upper, middle, and lower cotton cloth layers, which reduces the movement of the upper and lower filter cotton layers and improves stability. Attached Figure Description

[0009] Figure 1 This is a schematic cross-sectional view of the present invention. Figure 1 ;

[0010] Figure 2 This is a schematic cross-sectional view of the present invention. Figure 2 .

[0011] Attached diagram labels: 1. Upper cotton layer; 2. Middle cotton layer; 3. Upper filter cotton layer; 4. Lower cotton layer; 5. Lower filter cotton layer; 6. Sewn edge fabric. Detailed Implementation

[0012] like Figure 1-2As shown, a pleated filter cotton includes an upper cotton cloth layer 1 and a middle cotton cloth layer 2. An upper filter cotton layer 3 is disposed between the upper cotton cloth layer 1 and the middle cotton cloth layer 2. A lower cotton cloth layer 4 is disposed below the middle cotton cloth layer 2. A lower filter cotton layer 5 is disposed between the lower cotton cloth layer 4 and the middle cotton cloth layer 2. Both the upper filter cotton layer 3 and the lower filter cotton layer 5 are corrugated. The corrugated design increases the filtration area of ​​the upper filter cotton layer 3 and the lower filter cotton layer 5. When dust accumulates on the upper filter cotton layer 3 and the lower filter cotton layer 5, it can fall into the bending grooves of the upper filter cotton layer 3 and the lower filter cotton layer 5 under the action of gravity, which can reduce the number of cleaning times and increase the service life. The pleats of the upper filter cotton layer 3 and the lower filter cotton layer 5 are set at 90°, which can enhance the toughness of the upper filter cotton layer 3 and the lower filter cotton layer 5 and reduce collapse. The upper filter cotton layer 3 and the lower filter cotton layer 5 can be made of synthetic fiber filter cotton, non-woven filter cotton, glass fiber filter cotton or activated carbon filter cotton, depending on the material of the filter cotton. Furthermore, the periphery of the upper cotton fabric layer 1 and the lower cotton fabric layer 4 are sewn together by sewing edge fabric 6 and sewing thread.

[0013] Preferably, the filtration gaps on the upper filter layer 3 are larger than the filtration gaps on the lower filter layer 5.

[0014] Preferably, the highest point of the top of the upper filter cotton layer 3 is adhered to the bottom of the upper cotton cloth layer 1; the lowest point of the bottom of the upper filter cotton layer 3 is adhered to the top of the middle cotton cloth layer 2, thereby reducing the movement of the upper filter cotton layer 3 between the upper cotton cloth layer 1 and the middle cotton cloth layer 2 and increasing its stability.

[0015] Preferably, the highest point of the bottom filter cotton layer 5 is adhered to the bottom end of the middle cotton fabric layer 2; the lowest point of the bottom end of the bottom filter cotton layer 5 is adhered to the top end of the bottom cotton fabric layer 4, thereby reducing the movement of the bottom filter cotton layer 5 between the bottom cotton fabric layer 4 and the middle cotton fabric layer 2 and increasing its stability.

[0016] Usage process:

[0017] In use, the air to be filtered enters the upper filter cotton layer 3 from the upper cotton cloth layer 1. Some dust particles in the air are blocked by the upper filter cotton layer 3, while other dust particles follow the air through the upper filter cotton layer 3 and the middle cotton cloth layer 2 and enter the lower filter cotton layer 5. Finally, the dust particles in the air are blocked by the lower filter cotton layer 5, and the clean air is discharged after passing through the lower filter cotton layer 5 and the lower cotton cloth layer 4. When a lot of dust accumulates in the upper filter cotton layer 3 and the lower filter cotton layer 5, the dust falls into the grooves of the upper filter cotton layer 3 and the lower filter cotton layer 5 under the action of gravity.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A pleated filter medium comprising an upper and a middle layer of cloth, characterized in that: The upper filter cotton layer is arranged between the upper cotton cloth layer and the middle cotton cloth layer, the lower cotton cloth layer is arranged below the middle cotton cloth layer, the lower filter cotton layer is arranged between the lower cotton cloth layer and the middle cotton cloth layer, the upper filter cotton layer and the lower filter cotton layer are corrugated, and the periphery of the upper cotton cloth layer and the lower cotton cloth layer is sewn together by the edge cloth and the sewing thread.

2. The pleated filter according to claim 1, wherein: The corrugations of the upper filter cotton layer and the lower filter cotton layer are arranged at 90°.

3. A pleated filter according to claim 2, wherein: The filter gap of the upper filter cotton layer is larger than that of the lower filter cotton layer.

4. The pleated filter according to claim 1, wherein: The upper end of the upper filter cotton layer is adhered to the bottom end of the upper cotton cloth layer at the highest position; and the bottom end of the upper filter cotton layer is adhered to the top end of the middle cotton cloth layer at the lowest position.

5. The pleated filter according to claim 1, wherein: The upper end of the lower filter cotton layer is adhered to the bottom end of the middle cotton cloth layer at the highest position; and the bottom end of the lower filter cotton layer is adhered to the top end of the lower cotton cloth layer at the lowest position.

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