CN202289255U - Self-supply filtering protective mask - Google Patents
Self-supply filtering protective mask Download PDFInfo
- Publication number
- CN202289255U CN202289255U CN2011203841180U CN201120384118U CN202289255U CN 202289255 U CN202289255 U CN 202289255U CN 2011203841180 U CN2011203841180 U CN 2011203841180U CN 201120384118 U CN201120384118 U CN 201120384118U CN 202289255 U CN202289255 U CN 202289255U
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- self
- intake passage
- air intake
- channel
- mask
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Abstract
The utility model discloses a self-supply filtering protective mask, which is higher in the utilization rate of inhaled fresh air and better in breathing comfort. The self-supply filtering protective mask comprises a mask which at least covers the nose and the mouth. A cavity is formed in the mask. The rear end of the mask is open. An inhaling channel adapted to the position of the nose and an exhaling channel adapted to the position of the mouth are formed on the mask. A filtering element is arranged in the inhaling channel. The circumferential wall of the inhaling channel backwards extends to form a guide channel. An air gathering plate is arranged at an opening in the rear end of the guide channel, and partially covers the opening. The circumferential wall of the exhaling channel forwards extends, and then is downwards bent and extends to form a diversion channel. By the self-supply filtering protective mask, the inhaled fresh air can be quickly concentrated and supplied to a part in the vicinity of the nose of a user to realize the higher utilization rate and better breathing comfort; and moreover, inhaling resistance generated by waste gas accumulation formed by the inhaled fresh air filling the whole cavity is greatly reduced, so that exhaled hot air and waste gases can be quickly exhausted, and the user can smoothly breathe.
Description
Technical field
The utility model relates to a kind of mask, and specifically, the fresh air utilization rate that relates to a kind of suction is higher, breathes the better self-supporting filtering type mask of comfort level.
Background technology
Mask is as occupational health labour protection protective articles and personal protection necessary tool.Its filtering noxious effectively microparticle thing, order are breathed more healthy, are widely used in preventing professional pneumoconiosis, prevention occupational poisoning and anti-biological etc.But present mask, the user is when wearing, and sensation is sulks relatively, and work in 4 hours is worn breathing and is more felt bad.The reason that causes these problems be present mask when wearing, the ozone (wind and oxygen) that enters in the mask relatively disperses, and is diffused in the cavity of whole face shield; The novel air that nose is drawn onto is less; Sensation is sulks relatively, and the resistance of the more formation air-flowing type of remaining waste gas, cause respiratory resistance to increase; The expiratory dyspnea comfort level is poor, and more being not suitable for works long hours wears use.
The utility model content
To above deficiency, the utility model provides a kind of fresh air utilization rate of suction higher, breathes the higher self-supporting filtering type mask of comfort level; It comprises the face shield that covers in nose and mouth at least, is formed with cavity in the middle of the said face shield, and the rear end of face shield is the opening setting; Be formed with the air intake passage that adapts with the nose position on the face shield front panel; And with the exhalation passages that the mouth position adapts, be provided with filter element in the said air intake passage, it is characterized in that; The perisporium of said air intake passage extends back, and is formed with drainage channel.
The open rearward end place of said drainage channel is provided with the gather qi together plate that part covers this opening.
The perisporium of said exhalation passages extends forward earlier, and bending downwards and extension are formed with flow-guiding channel then.
Be arranged at intervals with several first stopping dams on the perisporium of said air intake passage; Several first stopping dams form a stop surface; Also be provided with the first film of fitting in the air intake passage with this stop surface; Said the first film can cover air intake passage fully from the projection of the length direction of air intake passage, and the centre position of the first film front surface is connected with the trailing flank of first stopping dam of this stop surface.
Be arranged at intervals with several second stopping dams on the perisporium of said exhalation passages; Several second stopping dams form another stop surface; Also be provided with second film of fitting in the exhalation passages with another stop surface; Said second film can cover exhalation passages fully from the projection of exhalation passages length direction, and the centre position on surface is fixedly connected with the leading flank of second stopping dam of another stop surface behind second film.
The beneficial effect of the utility model: the rear end of the air intake passage of the self-supporting filtering type mask of the utility model is formed with the drainage channel that adapts with the nose position; The wearer sucks fresh air after the purification and can concentrate rapidly and directly be delivered near the nostril like this; The utilization rate of fresh air is higher; Gas permeability is better, has significantly reduced fresh air and has been full of and forms the respiratory resistance that waste gas gathers formation in the whole cavity, and order is breathed more smooth and easy more comfortable.In addition; The front end of exhalation passages is formed with downward opening flow-guiding channel, not only makes the fresh air of human body suction and the waste gas of exhalation separate, and the hot blast of exhalation and waste gas can be discharged rapidly; Breathe more smooth and easy; And the waste gas of avoiding breathing out causes the human body inhaled air fresh inadequately, the comfort level when influencing human body respiration once more by the human body suction.
Description of drawings
Fig. 1 is the integrally-built cross-sectional schematic of the utility model;
Fig. 2 looks for the structural representation master of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further set forth, wherein, the direction of the utility model is as the criterion with Fig. 1, after people's face one side is.
As depicted in figs. 1 and 2, the self-supporting filtering type mask of the utility model comprises the middle face shield 1 that is formed with cavity 2, and face shield 1 covers in the nose and the mouth of human body at least; The rear end of face shield 1 is the opening setting; Be formed with air intake passage 21 and exhalation passages 22 on face shield 1 front panel, the position of air intake passage 21 (highly) adapts with the nose position, and the position of exhalation passages 22 and mouth position adapt; Be provided with the filter element that the human body inhaled air is carried out filtration, purification in the air intake passage 21; The perisporium of air intake passage 21 extends back, and is formed with drainage channel 23, and the position at the open rearward end place of said drainage channel 23 and human nose's position adapt.Like this can be so that the fresh air after the purification that human body sucks can directly be delivered near the human nose, the fresh air of avoiding sucking is full of in the whole cavity 2, and the utilization rate of fresh air is higher, and air-breathing resistance is littler.The utility model can also be provided with the gather qi together plate 29 that a part covers this opening at the open rearward end place of drainage channel 23; Make that so not only the fresh air after purifying can directly be delivered to rapidly near the human body nostril; The utilization rate of fresh air is higher; Comfort level is better, and has significantly reduced the fresh air that sucks and be full of and form the respiratory resistance that waste gas gather formation in the whole cavity 2, and respiratory resistance is littler more smooth and easy.
In addition; The utility model can also be on the basis of such scheme, and at downward opening flow-guiding channel 24 of front end increase of exhalation passages 22, be specially: the perisporium of exhalation passages 22 extends forward earlier; Bending downwards and extension are formed with flow-guiding channel 24 then.Make the fresh air of human body suction and the waste gas of exhalation separate like this, the waste gas of avoiding breathing out is sucked by human body once more, causes the human body inhaled air fresh inadequately, the comfort level when influencing human body respiration, and it is smooth and easy to ensure respiration.
The utility model can also be provided with inlet valve and outlet valve respectively in air intake passage 21 and exhalation passages 22; The utility model is paid the utmost attention to the employing following proposal: be arranged at intervals with several first stopping dams 25 on the perisporium of air intake passage 21; Several first stopping dams 25 form a stop surface; Also be provided with the first film 26 of fitting in the air intake passage 21 with this stop surface; Said the first film 26 can cover air intake passage 21 fully from the projection of the length direction of air intake passage 21, and the centre position of the first film 26 front surfaces is connected with the trailing flank of first stopping dam of this stop surface.
Be arranged at intervals with several second stopping dams 27 on the perisporium of exhalation passages 22; Several second stopping dams 27 form another stop surface; Also be provided with second film 28 of fitting in the exhalation passages 22 with another stop surface; Said second film 28 is fixedly connected with the leading flank of second stopping dam of another stop surface from the centre positions that the projection of exhalation passages 22 length directions can cover surface, exhalation passages 22, the second films, 28 back fully.Like this, when human body was air-breathing, the first film 26 opened backward, and air intake passage 21 is opened, and second film 28 props up another stop surface that second stopping dam forms, and exhalation passages 22 is closed; And when human body was exhaled, the first film 26 propped up the stop surface that first stopping dam forms, and air intake passage 21 is closed, and second film 28 opens forward, and exhalation passages 22 is opened.
The above is merely preferred embodiments of the present invention; The present invention is not limited to above-mentioned embodiment; In implementation process, possibly there is local small structural modification; If various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (5)
1. self-supporting filtering type mask, it comprises the face shield (1) that covers in nose and mouth at least, is formed with cavity (2) in the middle of the said face shield (1); The rear end of face shield (1) is the opening setting, is formed with the air intake passage (21) that adapts with the nose position on face shield (1) front panel, and the exhalation passages (22) that adapts with the mouth position; Be provided with filter element (3) in the said air intake passage (21); It is characterized in that the perisporium of said air intake passage (21) extends back, be formed with drainage channel (23).
2. self-supporting filtering type mask according to claim 1 is characterized in that, the open rearward end place of said drainage channel (23) is provided with the gather qi together plate (29) that part covers this opening.
3. self-supporting filtering type mask according to claim 1 is characterized in that, the perisporium of said exhalation passages (22) extends forward earlier, and bending downwards and extension are formed with flow-guiding channel (24) then.
4. self-supporting filtering type mask according to claim 1; It is characterized in that; Be arranged at intervals with several first stopping dams (25) on the perisporium of said air intake passage (21); Several first stopping dams (25) form a stop surface; Also be provided with the first film (26) of fitting with this stop surface in the air intake passage (21), said the first film (26) can cover air intake passage (21) fully from the projection of the length direction of air intake passage (21), and the centre position of the first film (26) front surface is connected with the trailing flank of first stopping dam of this stop surface.
5. self-supporting filtering type mask according to claim 1; It is characterized in that; Be arranged at intervals with several second stopping dams (27) on the perisporium of said exhalation passages (22); Several second stopping dams (27) form another stop surface; Also be provided with second film (28) of fitting with another stop surface in the exhalation passages (22), said second film (28) can cover exhalation passages (22) fully from the projection of exhalation passages (22) length direction, and the centre position on surface, second film (28) back is fixedly connected with the leading flank of second stopping dam of another stop surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203841180U CN202289255U (en) | 2011-10-11 | 2011-10-11 | Self-supply filtering protective mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203841180U CN202289255U (en) | 2011-10-11 | 2011-10-11 | Self-supply filtering protective mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289255U true CN202289255U (en) | 2012-07-04 |
Family
ID=46358247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203841180U Expired - Lifetime CN202289255U (en) | 2011-10-11 | 2011-10-11 | Self-supply filtering protective mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689493A (en) * | 2013-12-04 | 2015-06-10 | 新科劲力有限公司 | An active venting system and devices incorporating active venting system |
| CN105899261A (en) * | 2013-12-04 | 2016-08-24 | 创烁私人有限公司 | An active venting system and devices incorporating active venting system |
-
2011
- 2011-10-11 CN CN2011203841180U patent/CN202289255U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689493A (en) * | 2013-12-04 | 2015-06-10 | 新科劲力有限公司 | An active venting system and devices incorporating active venting system |
| CN105899261A (en) * | 2013-12-04 | 2016-08-24 | 创烁私人有限公司 | An active venting system and devices incorporating active venting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170626 Address after: 510850 Guangdong province Guangzhou City Xinya Street Huadu District unity Road 43 Building No. 1, a self-made three or four layer Patentee after: Guangzhou safeguard labour protection supplies Co., Ltd. Address before: 510420, No. 2, Lane 2, Tong Bei street, people's and town, Baiyun District, Guangzhou, Guangdong Patentee before: Yang Kangbin |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |