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Mask air valve
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An air valve and mask technology, applied in the field of masks, can solve problems such as affecting the air permeability of the air valve.
Inactive Publication Date: 2021-07-30
天长市润米生物科技有限公司
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Summary
Abstract
Description
Claims
Application Information
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Problems solved by technology
However, when the outside dust is large, the dust will mix with the exhaled water vapor and be blocked in the external intake cover, thereby affecting the air permeability of the air valve.
Method used
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Embodiment 1
[0034] Such as Figure 1 to Figure 4 As shown, the present invention provides a mask air valve, comprising: an air valve body 1, the air valve body 1 is suitable for being arranged on the mask body 2; a dustproof part 3, and the dustproof part 3 includes a connecting part 31 and a dustproof part 32, the dustproof part 32 is covered on the outside of the valve body 1, the dustproof part 32 is connected to the connecting part 31, the connecting part 31 is in an annular structure, and the The connecting portion 31 is arranged around the dust-proof portion 32, the dust-proof portion 32 is detachably connected to the valve body 1, and the connecting portion 31 and the valve body 1 are provided with a surrounding The seal 4 provided on the gas valve body 1.
[0035] It can be understood that by covering the dustproof part 32 on the outside of the valve body 1, the dustproof part 32 can block most of the dust from contacting the valve body 1. When there is dust, since the dustproof...
Embodiment 2
[0039] The difference between this embodiment and the above-mentioned embodiment is that: the circumferential direction of the valve body 1 is provided with a matching portion 11, the mask body 2 is connected to the air valve body 1 through the matching portion 11, and the matching portion 11 is provided with a first groove, the sealing member 4 is a sealing ring, a part of the sealing ring extends into the first groove, and the sealing ring stops against the connecting portion 31 .
[0040] It can be understood that, by matching the sealing ring with the connecting portion 31, the gap between the connecting portion 31 and the matching portion 11 can be sealed, preventing dust from entering between the dustproof portion 32 and the valve body 1 from the gap, and improving the prevention of dust. dust effect.
[0041] In some embodiments, the mask body 2 is embedded in the matching portion 11 , so as to ensure the connection strength between the matching portion 11 and the mask ...
Embodiment 3
[0045] The difference between this embodiment and the above embodiments is that: the connecting portion 31 is screwed to the matching portion 11 . As a result, the detachable connection structure between the connecting portion 31 and the mating portion 11 is simpler and more reliable, thereby facilitating the replacement of the dust-proof component 3 .
[0046] In some embodiments of the present invention, the connecting part 31 is provided with a connecting retaining ring 312, the connecting retaining ring 312 is arranged around the fitting part 11, and the connecting retaining ring 312 is threadedly connected with the fitting part 11 . It can be understood that the connecting portion 31 is threadedly connected with the matching portion 11 through the connecting retaining ring 312 , so that the connection structure between the connecting portion 31 and the matching portion 11 is simpler.
[0047] In some embodiments of the present invention, the connecting portion 31 is prov...
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Abstract
The invention relates to the technical field of masks, in particular to a mask air valve. The mask air valve comprises an air valve body suitable for being arranged on a mask body; and a dustproof part comprising a connecting part and a dustproof part, wherein the dustproof part covers the outer side of the air valve body, the dustproof part is connected to the connecting part, the connecting part is of an annular structure, the connecting part surrounds the dustproof part, the dustproof part is detachably connected to the air valve body, and a sealing piece surrounding the air valve body is arranged between the connecting part and the air valve body. The dustproof part covers the outer side of the air valve body, so that the dustproof part can prevent most dust from making contact with the air valve body, when a large amount of dust is attached to the outer side of the dustproof part, the dustproof part can be detachably connected to the air valve body through the connecting part, then the connecting part can be detached from the air valve body, and therefore the whole dustproof part is replaced, and dust attached to the dustproof part is prevented from affecting the air permeability of the air valve body.
Description
technical field [0001] The invention relates to the technical field of masks, in particular to a mask air valve. Background technique [0002] Compared with masks without valves, masks with valves have lower exhalation resistance and are more comfortable to wear. For example, the patent document whose application number is CN201621388290.2 provides an industrial dust-proof mask with a breathing valve, which relates to the technical field of industrial masks, which includes a hard mask shell, a pair of breathing valve devices, condensation A water collector and a mask belt device, the hard mask shell is in the shape of an imitation mask, and the hard mask shell is provided with a pair of breathing valve installation ports connected internally and externally and a condensed water collector installation groove connected internally and externally, and the condensate The water collector installation groove is located between a pair of breathing air valve installation ports, and ...
Claims
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Application Information
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