CN2170121Y

CN2170121Y - Three-dimensional dust-proof lamination filter material

Info

Publication number: CN2170121Y
Application number: CN 93242912
Authority: CN
Inventors: 杨友生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-20
Filing date: 1993-10-20
Publication date: 1994-06-29
Anticipated expiration: 2003-10-20

Abstract

The utility model relates to a three-dimensional dustproof lamination filter material, which belongs to a dustproof filter material used by a dustproof mask and comprises a flake-shaped filter material made from superfine fiber. The middle part of the filter material forms a three-dimensional cockling shape (1), and the periphery of the filter material is a smooth sealed edge (2). When arranged in an air suction box of the dustproof mask, the filter material is hermetically matched with the air suction box by the smooth sealed edge (2). Since the middle part of the dustproof mask presents the three-dimensional cockling shape, the effective area of filtering air is much wider than the plane filter material; when the thickness and the size are the same, the inhalation resistance is lighter than the plane filter material.

Description

Three-dimensional dust-proof lamination filter material

The utility model relates to the structure of the dustproof filtrate that a kind of anti-dust respirator uses.

Used dustproof filtrate is all the plane filtrate made from polypropylene or polyvinyl chloride superfine fibre in the air-breathing filter box of anti-dust respirator at present, in order both to reach enough dustproof effects, less inspiratory resistance is arranged again, the area of filtrate must be bigger, general two air-breathing filter boxes are set in the both sides of anti-dust respirator, big to the obstruction in the visual field, mouth mask is also relatively heavier.

The purpose of this utility model is that to propose a kind of inspiratory resistance less and the structure of the dustproof filtrate of enough dustproof effects arranged.

The dustproof filtrate of this three-dimensional lamination comprises the laminar filtrate that a usefulness superfine fibre is done, and the middle part of filtrate is three-dimensional accordion-like, and periphery is smooth sealing strip.

When the dustproof filtrate of this three-dimensional lamination is contained in the aspiration box, rely on the sealing strip and the aspiration box of periphery to be sealed and matched, the middle part is owing to be three-dimensional accordion-like, the effective area of filtered air is more much bigger than plane filtrate, thereby identical with the plane filtrate at the thickness of filtrate with fibre density, inspiratory resistance was much smaller when size was identical with the plane filtrate.

Accompanying drawing 1 is the profile schematic diagram of the dustproof filtrate of this three-dimensional lamination;

Accompanying drawing 2 is the cutaway view of Fig. 1;

Accompanying drawing 3 is the structure chart of another kind of dustproof filtrate;

Accompanying drawing 4 is another dustproof filter structure figure;

Accompanying drawing 5 is the structure chart of the 4th kind of dustproof filtrate.

As illustrated in fig. 1 and 2, the middle part of the dustproof filtrate of this three-dimensional lamination is three-dimensional accordion-like (1), makes its plane filtrate of surface area ratio many greatly, and its periphery is smooth sealing strip (2), with the sealing that matches with aspiration box.Wrinkle among the figure are the parallel strip structure.

The wrinkle (1) at the dustproof filtrate of this as shown in Figure 3 three-dimensional lamination middle part also can be circuluses.

The profile of filtrate can also be made other various shape, is the square dustproof filtrate of three-dimensional lamination as shown in Figure 4, and the wrinkle at its middle part are the parallel strip structures.And for example filtrate shown in Figure 5 be shaped as leg-of-muttonly, the wrinkle at middle part are circuluses.

Anti-dust respirator has used behind the dustproof filtrate of this three-dimensional lamination because the inspiratory resistance of filtrate is little, and the volume of aspiration box can be done smallerly, and mouth mask can be done relatively lightlyer, and aspiration box is also less to stopping of the visual field.

Claims

1, the dustproof filtrate of a kind of three-dimensional lamination comprises the laminar filtrate that a superfine fibre is done, and the middle part that it is characterized in that filtrate is three-dimensional accordion-like (1), and periphery is smooth sealing strip (2).

2, the dustproof filtrate of three-dimensional lamination as claimed in claim 1 is characterized in that described wrinkle (1) are parallel list structure.

3, the dustproof filtrate of three-dimensional lamination as claimed in claim 1 is characterized in that described wrinkle (1) are circulus.