Fireproof filter for dustproof mask

Abstract

The present invention relates to a fireproof filter for a dustproof mask, in which a filter (100) is formed by comprising a filter body (120), which includes: an outer skin member (122a) disposed outside; an inner skin member (122b) disposed inside; and an inner member disposed therebetween, in a state of being mounted on an inhalation port of a mask, wherein the outer skin member (122a) is formed of a fireproof material, so that the outer skin member (122a) is not damaged by sparks generated during welding or metal cutting, leading to fireproof performance.

Description

Dust mask fireproof filter

[0001] The present invention relates to a filter, and more particularly, to a fire-resistant filter for a dust mask having improved flame or spark resistance.

[0002] Masks are used to protect workers in a variety of industrial settings. Various work environments, such as welding, metalworking, quarrying, and construction, generate fine dust and other gases that can be harmful to the human body, and masks are used to protect workers from these gases.

[0003] Masks like the above are typically formed with a structure that can cover the entire face or respiratory organs, and are equipped with a filter to filter out fine dust or chemicals.

[0004] Meanwhile, when wearing a mask like the one described above while welding, sparks generated during the welding process can fly onto the filter. This damages the filter, causing it to lose its functionality and requiring frequent replacement, resulting in the inconvenience of a long-term replacement.

[0005] The purpose of the present invention is to provide a fire-resistant filter for a dust mask that has a fire-resistant ability to resist high temperatures, thereby minimizing damage caused by sparks generated during welding or metal cutting operations and thereby increasing the replacement cycle.

[0006] The present invention proposes a dust mask fire-resistant filter, which comprises a filter body formed by having an outer skin member disposed on the outside and an inner skin member disposed on the inside while mounted on an intake port of a mask, and an inner member disposed between them, wherein the outer skin member is formed of a fire-resistant material so that the outer skin member is not damaged by sparks generated during welding or metal cutting, thereby having fire-resistant performance, thereby achieving the above-described object.

[0007] According to the present invention, a fire-resistant filter that is not damaged by sparks generated during welding or metal cutting operations can be obtained, and a fire-resistant filter that can prevent secondary damage caused by sparks by preventing sparks from flying around can be provided.

[0008] Figure 1 is an example diagram showing the outer surface of a dust mask filter.

[0009] Figure 2 is an example diagram showing the inner surface of a dust mask filter.

[0010] Figure 3 is an example of a filter according to the present invention.

[0011] Figure 4 is an exploded view showing a filter having a frame formed according to the present invention;

[0012] Figure 5 is an enlarged view of a portion of a filter having a frame formed according to the present invention.

[0013] In the present invention, a dust mask fire-resistant filter is proposed, which comprises a filter body formed by having an outer skin member disposed on the outside and an inner skin member disposed on the inside while mounted on an intake port of a mask, and an inner member disposed between them, wherein the outer skin member is formed of a fire-resistant material so that the outer skin member is not damaged by sparks generated during welding or metal cutting, thereby having fire-resistant performance.

[0014] Hereinafter, the present invention will be described in detail with reference to the attached drawings, FIGS. 1 to 5.

[0015] Fig. 1 is an exemplary drawing showing the outer surface of a dust mask filter, Fig. 2 is an exemplary drawing showing the inner surface of a dust mask filter, and Fig. 3 is an exemplary drawing of a filter according to the present invention.

[0016] As shown, the filter (100) used in the dust mask includes a filter body (120), and the filter (100) has a coupling hole (102) formed on one side thereof, so that the coupling hole (102) is coupled to an intake port of the mask (not shown), thereby allowing the filter (100) to be detachably mounted on the mask.

[0017] In the present invention, the filter body (120) includes an outer skin member (122a) arranged on the outside in a direction visually visible when the filter (100) is mounted on the intake port of the mask, and an inner skin member (122b) arranged on the inside in a direction opposite to the mask. In addition, a structure is formed in which an inner member is arranged between the outer skin member (122a) and the inner skin member (122b), and these outer and inner skin members (122a) (122b) and the inner member are formed of a material and structure that allows air to pass through, while filtering out fine dust or pollutants.

[0018] Here, the filter body (120) has an outer skin member (122a) formed of a refractory material. The refractory material may be silica, but is not limited thereto. Any material that is harmless to the human body and has refractory properties may be selected and adopted from known materials as needed.

[0019] If the outer skin member (122a) is formed of a refractory material, even if sparks fly to the outer skin member (122a) during welding or metal cutting, the outer skin member (122a) will not be damaged. Since the refractory material has a considerable ability to withstand heat, the outer skin member (122a) will not melt even at high temperatures generated by sparks, and thus no damage due to heat will occur.

[0020] Meanwhile, the inner skin member (122b) may or may not be formed of a refractory material.

[0021] The filter (100) according to the present invention formed as described above forms fluff on the surface of the outer skin member (122a). The fluff can be formed by rubbing the surface of the outer skin member (122a) with a rough surface, such as a grindstone, while applying appropriate pressure. As the outer skin member (122a) is scratched by the friction, fluff is naturally formed.

[0022] The above-mentioned fluff catches sparks generated during welding or metal cutting. Therefore, it is possible to prevent sparks from hitting the surface of the filter (100) according to the present invention and flying around. At this time, since the outer skin member (122a) is formed of a refractory material, the fluff is not melted by the sparks, but is caught to prevent the sparks from flying around the worker, thereby preventing various damages that may occur when the sparks fly around the worker without damaging the performance of the filter (100).

[0023] Fig. 4 is an exploded view showing a filter with a frame formed according to the present invention, and Fig. 5 is an enlarged view of a portion of the filter with a frame formed according to the present invention.

[0024] The filter (100) according to the present invention may have a border (140) formed on the edge of the filter body (120).

[0025] The frame (140) protects the edge of the filter body (120) by wrapping it around it, and also serves to keep the outer and inner skin members (122b) and the inner member constituting the filter body (120) firmly connected. This frame (140) is formed by including an outer pressing surface (142a) that presses the outer skin member (122a), an inner pressing surface (142b) that presses the inner skin member (122b), and a support surface (144).

[0026] The outer and inner pressure surfaces (142a)(142b) are formed to have a predetermined width, and the support surface (144) is formed to connect the rear ends of the outer and inner pressure surfaces (142a)(142b) to each other, so that the frame (140) forms an overall cross-sectional 'ㄷ' shape. As a result, the frame (140) wraps around the edge of the filter body (120).

[0027] Here, a collection wall (146) is formed at the tip of the outer pressure surface (142a) in a direction away from the outer skin member (122a). This collection wall (146) can be formed to slope upward from the outer pressure surface (142a) toward the center of the filter (100), so that when sparks generated during welding or metal cutting work collide with the outer skin member (122a) and flow down, they are trapped in the space between the outer skin member (122a) and the collection wall (146). That is, the sparks are trapped in the space between the outer skin member (122a) and the collection wall (146). Accordingly, it is possible to prevent sparks from flying around, and as a result, it is possible to prevent secondary damage that may occur when sparks fly to other places.

[0028] A refractory material addition member (150) may be added to the edge of the outer skin member (122a) formed as described above. The addition member (150) is attached along the edge of the outer skin member (122a) while forming a predetermined width, and a fluff (124) is formed on the surface. Accordingly, when a spark enters the space between the outer skin member (122a) and the collection wall (146), the spark is caught on the fluff (124). Accordingly, the spark can be stably trapped between the outer skin member (122a) and the collection wall (146).

[0029] Meanwhile, the configuration of the trapping wall (146) and the additional member (150) can be formed in the same manner on the inner surface member (122b), and through this, sparks falling on the inner surface member (122b) can be captured, thereby more effectively preventing sparks from flying.

[0030] According to the present invention as described above, a fire-resistant filter that is not damaged by sparks generated during welding or metal cutting operations can be obtained, thereby increasing the replacement cycle. Furthermore, by preventing sparks striking the filter (100) from flying around, secondary damage caused by sparks can be prevented.

[0031]

[0032] [Explanation of symbols]

[0033] 100: filter, 102: coupler,

[0034] 120: filter body, 122a, 122b: skin member,

[0035] 124: fluff, 150: additional material,

[0036] 140: border, 142a, 142b: pressure surface,

[0037] 144: Support surface, 146: Barrier.

Claims

1. A filter (100) is formed by including a filter body (120) formed by having an outer skin member (122a) positioned on the outside and an inner skin member (122b) positioned on the inside while mounted on the intake port of the mask, and an inner member positioned between them. A dust mask fireproof filter formed with fire-resistant performance by preventing the outer skin member (122a) from being damaged by sparks generated during welding or metal cutting operations by forming the outer skin member (122a) with a fire-resistant material.

2. In paragraph 1, A dust mask fireproof filter in which fluff (124) is formed on the surface of the outer skin member (122a) so that the fluff (124) can catch the sparks.

3. In paragraph 1, A filter (100) is formed including a frame (140) that surrounds the edge of the filter body (120). The above frame (140) includes outer and inner pressing surfaces (142a) (142b) that press the outer and inner skin members (122b) respectively, and a support surface (144) that connects the rear ends of the outer and inner pressing surfaces (142a) (142b) and wraps around the edge of the filter body (120). At the tip of the outer pressing surface (142a) that presses the outer skin member (122a), a capturing wall (146) is formed in a direction away from the outer skin member (122a), so that sparks that fall on the outer skin member (122a) are prevented from spreading by being blocked by the capturing wall (146). A dust mask fireproof filter in which the above-mentioned capturing wall (146) is formed to slope upward from the outer pressure surface (142a) so that the sparks can be trapped between the outer skin member (122a) and the capturing wall (146).

4. In paragraph 3, A fire-resistant material addition member (150) is added to the edge of the outer skin member (122a). The above-mentioned additional member (150) is a dust mask fireproof filter in which fluff (124) is formed on the surface so that the sparks can be caught by the fluff (124) and thus be trapped between the outer skin member (122a) and the outer pressure surface (142a).

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