CN201871148U - Dust mask - Google Patents
Dust mask Download PDFInfo
- Publication number
- CN201871148U CN201871148U CN2010206409230U CN201020640923U CN201871148U CN 201871148 U CN201871148 U CN 201871148U CN 2010206409230 U CN2010206409230 U CN 2010206409230U CN 201020640923 U CN201020640923 U CN 201020640923U CN 201871148 U CN201871148 U CN 201871148U
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- CN
- China
- Prior art keywords
- mask body
- hole
- mask
- frame plate
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a dust mask comprising a mask body. A groove adaptive to a nose bridge part is arranged at the upper part of the mask body; an air inlet hole and a plurality of air outlet holes are further arranged at the upper part of the mask body; a flip cover is arranged on each air outlet hole and fixedly arranged on the mask body; a frame plate is arranged at the corresponding position of the upper part of the inner cavity of the mask body and provided with a through hole; a ventilation pipe is inserted in the air inlet hole; the tail port of the ventilation pipe is connected with the through hole on the frame plate; a flip cover is further arranged at the through hole and fixedly arranged on the frame plate; lacings are arranged at two sides of the mask body; and each flip cover consists of a base and a cover plate, and the base is hinged with the cover plate. The dust mask is simple in structure and convenient to use, and can lead workers working under the environment of poor air quality to be capable of breathing fresh air when wearing the dust mask, thus improving the working efficiency and ensuring the body health of the workers.
Description
The ㈠ technical field: the utility model relates to dust mask, specifically is a kind of dust mask that can have a breath of fresh air.
㈡ background technology: at present, the workman who under the environment of cement plant, colliery and dust and air quality difference, works, generally all will be with dust mask dustproof, the filtration, purification air, but can only the filtration, purification most of air of these face shields, still there is the sordid air of small part to be sucked by the people, and some dust stop up filter course easily, and making the people is not very smooth and easy when breathing, thereby the infringement workman's is healthy.
The ㈢ summary of the invention: the purpose of this utility model is improved above shortcoming exactly.Propose a kind of simple in structurely, easy to use, increase work efficiency the dust mask that to have a breath of fresh air.
The utility model dust mask, have a mask body, the top of mask body has the groove that adapts with nose bridge, it is characterized in that: the top of mask body also has an air admission hole and some ventholes, be furnished with on each venthole and renovate, renovate and be fixed on the mask body; The relevant position, top of mask body inner chamber is provided with a frame plate, and frame plate is provided with through hole, is inserted with breather pipe in the air admission hole, the tail end mouth of breather pipe is connected with the through hole on the frame plate, the frame plate through hole also is provided with and renovates, and renovates to be fixed on the frame plate, and the mask body both sides are provided with frenulum.
Described in the utility model renovating is to be made of base and cover plate, and the base upper hinge has cover plate.
The utility model is simple in structure, and is easy to use, can make the workman who works under the environment of air quality difference, also can breathe fresh air during dust mask on tape, increases work efficiency, and guarantees that the workman's is healthy.
Using method
The end user is on the face shield band, then the air inlet pipe of outside is connected with breather pipe on the face shield, fastens frenulum and can use.Its operation principle is when the people is air-breathing, renovating on the breather pipe tail end mouth, because of the facepiece interior air pressure reduces, open thereby the air in the breather pipe enters to renovate, when exhaling, the pressure in the face shield increases, renovating because of the gravity effect on the breather pipe tail end mouth closed automatically, and renovating on the venthole opened, after giving vent to anger because of the gravity effect, the renovating and can close automatically of venthole.Circulation according to this.
The ㈣ description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 renovates amplification assumption diagram.
Among the figure, the 1-mask body, the 2-air admission hole, the 3-venthole, the 4-breather pipe, 5-renovates, 6-frame plate, 7-groove, 8-through hole, 9-frenulum, 10-base, 11-cover plate.
The ㈤ specific embodiment:
Referring to Fig. 1, Fig. 2, the utility model has mask body 1, the top of mask body 1 has the groove 6 that adapts with nose bridge, the top of mask body 1 also has an air admission hole 2 and two ventholes 3, be furnished with on each venthole and renovate 5, renovating 5 is to be made of base 10 and cover plate 11, and base 10 upper hinges have cover plate 11.Renovating 5 is fixed on the mask body 1; The relevant position, top of mask body 1 inner chamber is provided with a frame plate 6, and frame plate 6 is provided with through hole 8, is inserted with breather pipe 4 in the air admission hole 2, the tail end mouth of breather pipe 4 is connected with through hole 8 on the frame plate 6, through hole 8 places also are provided with renovates 5, renovates 5 and is fixed on the frame plate 6, and mask body 1 both sides are provided with frenulum 9.
Claims (2)
1. dust mask has a mask body, and the top of mask body has the groove that adapts with nose bridge, it is characterized in that: the top of mask body also has an air admission hole and some ventholes, is furnished with on each venthole and renovates, and renovates to be fixed on the mask body; The relevant position, top of mask body inner chamber is provided with a frame plate, and frame plate is provided with through hole, is inserted with breather pipe in the air admission hole, the tail end mouth of breather pipe is connected with the through hole on the frame plate, the frame plate through hole also is provided with and renovates, and renovates to be fixed on the frame plate, and the mask body both sides are provided with frenulum.
2. dust mask according to claim 1 is characterized in that: described renovating is to be made of base and cover plate, and the base upper hinge has cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206409230U CN201871148U (en) | 2010-12-03 | 2010-12-03 | Dust mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206409230U CN201871148U (en) | 2010-12-03 | 2010-12-03 | Dust mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201871148U true CN201871148U (en) | 2011-06-22 |
Family
ID=44159083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206409230U Expired - Fee Related CN201871148U (en) | 2010-12-03 | 2010-12-03 | Dust mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201871148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955524A (en) * | 2013-02-01 | 2015-09-30 | 3M创新有限公司 | Respiratory mask having a clean air inlet chamber |
-
2010
- 2010-12-03 CN CN2010206409230U patent/CN201871148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955524A (en) * | 2013-02-01 | 2015-09-30 | 3M创新有限公司 | Respiratory mask having a clean air inlet chamber |
| CN104955524B (en) * | 2013-02-01 | 2018-06-29 | 3M创新有限公司 | Breathing mask with clean air inlet chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20121203 |