CN201064629Y - Dustproof positive pressure sealing hood - Google Patents
Dustproof positive pressure sealing hood Download PDFInfo
- Publication number
- CN201064629Y CN201064629Y CNU2007201698919U CN200720169891U CN201064629Y CN 201064629 Y CN201064629 Y CN 201064629Y CN U2007201698919 U CNU2007201698919 U CN U2007201698919U CN 200720169891 U CN200720169891 U CN 200720169891U CN 201064629 Y CN201064629 Y CN 201064629Y
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- Prior art keywords
- case
- frenulum
- dustproof
- shield
- guard shield
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- Expired - Fee Related
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Abstract
Disclosed is an anti-dust positive-pressure-sealing head-cover, including an air-supply apparatus and a cover shell which is arranged on the top. An observing window is arranged dead ahead of the shell cover, wherein, an aeration pipe is arranged inside or outside the shell cover; one end of the aeration pipe is arranged at the back-lower part outside the shell cover and communicated with the air-supply apparatus through a tube, while the other end of the aeration pipe is arranged at the upper part inside the observing window; a protecting cover for both chins is arranged along the lower edge and two sides of the observing window; mufflers are arranged respectively at the joints of the two ends of the protecting cover and the low edge of the cover shell; a front lacing is arranged inside the free edge of the cover shell and a back lacing is arranged inside the rest of lower edge of the cover shell; a plurality of small air outlets are opened below the protecting cover. The utility model is of reasonable structure, so that the air supply is sufficient and the air flow is more reasonable. In addition, the air is more strictly filtered and cleaner, so people feel that the head is cool and sober, and the sealing performance is optimal. The utility model can be widely used by the medical workers, the coal miners, the operators and the cleaning workers to achieve such functions as anti-infectious virus, anti-toxic-gas, anti-silica-dust, anti-dust and so on.
Description
Technical field
The utility model relates to a kind of sealing head-shield, is widely used in in the multiple contaminated environment such as dirt silicon and dust a kind of dustproof head-shield that the staff wore.
Background technology
Dirt silicon in the prevention environment and dust etc. are a lot of to the dustproof articles for use of health influence.The patent No. be ZL200420118235.2 head-shield class series of products in use, also exist the not first-class inconvenient part of degree of tightness when head-shield is worn; Particularly air-flow enters face from the rear portion through hair in the head-shield, thereby reduces the cleanliness factor of input air-flow, and this is because due to head sweat stain and the unclean hair; Air-flow in the cover produces noise again simultaneously, though sound is little, permanent in total sense uncomfortable.Air demand during use must be greater than 150 liters/minute, otherwise, can so must detect the air demand of air-supply arrangement before using, guarantee user's safety because the air demand deficiency labors for breath the people.
The utility model content
The technical problems to be solved in the utility model provides a kind of rational in infrastructure, safety easy to use, and the dustproof positive seal head-shield of anti-virus, dustproof better effects if.
The utility model positive seal head-shield that prevents dust comprises the case at air-supply arrangement and top; Dead ahead at case is provided with observation window, wherein in case or outside be provided with breather pipe, breather pipe one end is positioned at the outer rear lower of case, and is communicated with air-supply arrangement by flexible pipe, its other end is positioned at the top of observation window; Bottom and dual-side along observation window are provided with the guard shield of wearing with the lower jaw both sides, fixedly connected with the case lower edge respectively again in the two ends of guard shield; Be respectively equipped with the noise reduction bolt at guard shield two ends and junction, case lower edge, the noise reduction bolt coats soft elastic material by cloth and constitutes; Be provided with preceding frenulum in the free margins of guard shield, the two ends of preceding frenulum are fixed with guard shield respectively, and its centre passes with tight locking button under the guard shield and flexibly connects; Also be provided with the back frenulum in all the other limits, lower edge of case, the two ends of back frenulum pass from dual-side respectively, and flexibly connect with another tight locking button; Below guard shield, have several apertures of giving vent to anger.
The utility model positive seal head-shield that prevents dust, be provided with the housing of dividing plate in the middle of wherein air-supply arrangement comprises, rechargeable battery is equipped with on one side at dividing plate, and add back shroud and fix, another side at dividing plate is that the inner cap that gives filter cloth and filtering material is housed, and inner cap is connected with housing seal, and constitutes air chamber between inner cap and the dividing plate, at the housing that is arranged in the air chamber position alarm of blower fan, band warning lamp is housed, and passes through outlet and soft pipe connection on it; The front shroud of the venetian blind type of fixedlying connected with housing is housed outside inner cap, filters gauze at the front shroud upper cover; Press from both sides being provided with between waist on the back shroud.
The utility model positive seal head-shield that prevents dust, wherein case is the hard case of safety helmet type or the soft case of liner skeleton outsourcing waterproof cloth; Breather pipe is positioned at outside the hard case, or is positioned at soft case; In soft case, also be provided with the top frenulum of band hasp, and the two ends of top frenulum are fixed with the lower edge of soft case dual-side respectively.
The utility model positive seal head-shield that prevents dust, wherein also be provided with the big sheath of wearing with neck in soft case lower edge, the front upper part opening of big sheath is connected with the sealing of guard shield bottom with the observation window dual-side, the aperture of wherein giving vent to anger still is exposed, and the upper back opening edge of big sheath is connected with lower edge sealing behind the soft case; Simultaneously also be provided with connection strap between the two at this position, frenulum after establish one in addition in the connection strap, substitute original back frenulum, and fixedly connected with the guard shield corresponding site respectively again in the two ends of being somebody's turn to do back frenulum and connection strap, and the center of back frenulum passes and another tight locking button flexible connection in the middle of the connection strap rear portion.
The utility model positive seal head-shield that prevents dust, wherein also be provided with the big sheath of wearing with neck in hard case lower edge, the front upper part opening of big sheath is connected with the sealing of guard shield bottom with the observation window dual-side, the aperture of wherein giving vent to anger still is exposed, and the upper back opening of big sheath is connected with lower edge sealing behind the hard case; Simultaneously also be provided with connection strap between the two at this position, frenulum after establish one in addition in the connection strap, substitute original back frenulum, and fixedly connected with the guard shield corresponding site respectively in the two ends of being somebody's turn to do back frenulum and connection strap, and the center of back frenulum passes and another tight locking button flexible connection in the middle of the connection strap rear portion.
The utility model positive seal head-shield that prevents dust wherein also is provided with the aperture of giving vent to anger at the top of hard case and soft case.
The utility model positive seal head-shield that prevents dust wherein also is pasted with transparent protective film on the outer surface of observation window.
The utility model positive seal head-shield that prevents dust, wherein also comprise and to detect the per minute air demand greater than 150 liters device, in the middle of comprising, it is the cylindrical shell of taper seat, middle part horizontal positioned lightweight buoy in cylindrical shell; the center is provided with balance weight body below the buoy, is carved with graticule in the barrel wall upper edge perpendicular to axis direction; The cylindrical shell small-caliber end is equipped with described outlet downwards.
The utility model positive seal head-shield that prevents dust, wherein the weight of buoy is 17～19 grams.
The dustproof positive seal head-shield of the utility model is to be the further improvement of the head-shield in the protection positive seal mask series of ZL200420118235.2 to the patent No..Its structure is more reasonable, and it has air feed abundance in the cover, and air-flow is more reasonable, and air filtration is stricter, and the cleanliness factor height makes the people feel that head is nice and cool and clear-headed; Sealing property the best had both made with patient's zero distance the medical worker and contacts, and also can not infected.The utility model can be widely used in the use of medical worker, coal miner, operator and cleaning worker, realizes multiple functions such as anti-borne virus, poison gas, dirt silicon and dust.
Description of drawings
Fig. 1 is the dustproof positive seal head-shield first example structure principle schematic of the utility model;
Fig. 2 is the dustproof positive seal head-shield second example structure principle schematic of the utility model;
Fig. 3 is dustproof positive seal head-shield the 3rd example structure principle schematic of the utility model;
Fig. 4 is dustproof positive seal head-shield the 4th example structure principle schematic of the utility model;
Fig. 5 is air-supply arrangement structural profile schematic diagram in the dustproof positive seal head-shield of the utility model;
Fig. 6 is air output checkout gear structural profile schematic diagram in the dustproof positive seal head-shield of the utility model.
The specific embodiment
The dustproof positive seal head-shield of the utility model has 4 kinds of structures, and Fig. 1 is the first example structure principle schematic, and it comprises soft case 19 and the breather pipe 2 that is positioned at this case by liner skeleton outsourcing waterproof cloth; Breather pipe 2 one ends are positioned at the outer rear lower of case, and are communicated with air-supply arrangement by flexible pipe 3, and its other end is positioned at the top of the observation window 1 in soft case 19 dead aheads; Bottom and dual-side along observation window 1 are provided with the guard shield of wearing with the lower jaw both sides 4, fixedly connected with case 19 lower edges respectively again in the two ends of guard shield 4; Be respectively equipped with noise reduction bolt 5 at guard shield 4 two ends and junction, case 19 lower edge, noise reduction bolt 5 coats soft elastic material by cloth and constitutes, and can block the noise that air-flow herein produces effectively; Frenulum 6 before being provided with in the free margins of guard shield 4, the two ends of preceding frenulum 6 are fixing with guard shield 19 respectively, and its centre passes and tight locking button 7 flexible connections under guard shield 19; Also be provided with back frenulum 9 in all the other limits, lower edge of case, its two ends pass from dual-side respectively, and flexibly connect with another tight locking button 7; In soft case 19, also be provided with the top frenulum 20 of band hasp, its two ends are fixed with the lower edge of soft case 19 dual-sides respectively.The frenulum of three different azimuth by tight locking button and hasp, can be regulated the degree of tightness of frenulum, make head-shield securely, very cosily fixing again.Top with soft case 19 below guard shield 4 has the aperture 8,8 ' of giving vent to anger.
As seen from Figure 5, in the middle of comprising, air-supply arrangement is provided with the housing 10 of dividing plate 11, rechargeable battery is equipped with on one side at dividing plate 11, and it is fixing to add back shroud 12, another side at dividing plate 11 is that the inner cap 13 that gives filter cloth 26 and the molten blown non-woven fabric filtering material of N99 is housed, and inner cap 13 is tightly connected with housing 10, and constitutes air chamber 14 between inner cap 13 and the dividing plate 11, at the housing 10 that is arranged in air chamber 14 positions the alarm of blower fan, band warning lamp is housed, and is communicated with flexible pipe 3 by the outlet 15 on it; The front shroud 16 of the venetian blind type of fixedlying connected with housing 10 is housed outside inner cap 13, filters gauze 17 at front shroud 16 upper covers; On back shroud 12, be provided with between waist and press from both sides.
Fig. 2 is the second example structure principle schematic, its structure and the former are basic identical, difference is also to be provided with the big sheath of wearing with neck 21 in the lower edge of soft case 19, the front upper part opening of big sheath 21 is connected with the sealing of guard shield 4 bottoms with observation window 1 dual-side, wherein the aperture 8 of giving vent to anger of guard shield 4 bottoms still is exposed, and the upper back opening edge of big sheath 21 is connected with the 19 back lower edge sealing of soft case; Simultaneously also be provided with connection strap 22 between the two at this position, frenulum 9 after establish one in addition in the connection strap 22 ', substitute original back frenulum 9, and should back frenulum 9 ' fixedly connected with guard shield 4 corresponding sites respectively again with the two ends of connection strap 22, back frenulum 9 ' the center from connection strap 22 rear portions middle passing and 7 flexible connections of another tight locking button.
Fig. 3 is the 3rd example structure principle schematic, and the difference compared to Figure 1 of its structure is that case is the hard case 18 of safety helmet type, and breather pipe 2 is positioned at outside the hard case 18, and breather pipe 2 other ends carry out in the case outside the case of observation window 1 top; And frenulum has only forward and backward two.
Fig. 4 is the 4th example structure principle schematic, and upper cover is same as shown in Figure 3, and the big sheath 21 of bottom is identical with second embodiment with the structure of Qi Nei.
In the foregoing description, on the outer surface of observation window 1, also be pasted with transparent protective film, can often change, exempted from the damage on observation window 1 surface and influence the observation sight line; This diaphragm also has anti-infrared, ultraviolet or anti-infrared and ultraviolet function of while simultaneously.
As seen from Figure 6, the dustproof positive seal head-shield of the utility model also comprises can detect the per minute air demand greater than 150 liters device, it is the cylindrical shell 23 of taper seat in the middle of comprising, the middle part horizontal positioned lightweight buoy 24 in cylindrical shell 23, and buoy 24 following centers are provided with balance weight body; Be carved with graticule 25 in cylindrical shell 23 wall upper edges perpendicular to axis direction; Cylindrical shell 23 small-caliber ends downwards with air-supply arrangement on outlet 15 be equipped with.Find that in use the air demand per minute of air-supply arrangement should be greater than 150 liters, otherwise that people's breathing will take place will be difficult, even threat to life safety.This device cylindrical shell 23 bottom internal diameter 30mm, top internal diameter 34～35mm, high about 140mm, and the about 29mm of buoy 24 external diameters, weight is 18 grams; If blow afloat more than the buoy 24 rising 60mm, but air demand lattice then.Otherwise clean or change filtering material and filter gauze, or charge the battery.
Claims (9)
1. dustproof positive seal head-shield comprises the case at air-supply arrangement and top; Be provided with observation window (1) in the dead ahead of described case, it is characterized in that in described case or outside be provided with breather pipe (2), described breather pipe (2) one ends are positioned at the outer rear lower of described case, and be communicated with described air-supply arrangement by flexible pipe (3), its other end is positioned at the top of described observation window (1); Bottom and dual-side along described observation window (1) are provided with the guard shield of wearing with the lower jaw both sides (4), fixedly connected with described case lower edge respectively again in the two ends of described guard shield (4); Be respectively equipped with noise reduction bolt (5) at described guard shield (4) two ends and junction, described case lower edge, described noise reduction bolt (5) coats soft elastic material by cloth and constitutes; Be provided with preceding frenulum (6) in the free margins of described guard shield (4), the two ends of described preceding frenulum (6) are fixing with described guard shield (4) respectively, and its centre passes and tight locking button (7) flexible connection under described guard shield (4); Also be provided with back frenulum (9) in the limit, lower edge of described case, the two ends of described back frenulum (9) pass from dual-side respectively, and flexibly connect with another tight locking button (7); Have several apertures of giving vent to anger (8) in described guard shield (4) below.
2. dustproof positive seal head-shield according to claim 1, it is characterized in that described air-supply arrangement comprises the middle housing (10) that is provided with dividing plate (11), rechargeable battery is equipped with on one side at described dividing plate (11), and it is fixing to add back shroud (12), another side at described dividing plate (11) is that the inner cap (13) that gives filter cloth (26) and filtering material is housed, described inner cap (13) is tightly connected with described housing (10), and constitute air chamber (14) between described inner cap (13) and the described dividing plate (11), at the described housing (10) that is arranged in described air chamber (14) position blower fan is housed, the alarm of band warning lamp, and the outlet (15) that passes through on it is communicated with described flexible pipe (3); The front shroud (16) of the venetian blind type of fixedlying connected with described housing (10) is housed outside described inner cap (13), filters gauze (17) at described front shroud (16) upper cover; On described back shroud (12), be provided with between waist and press from both sides.
3. dustproof positive seal head-shield according to claim 1 and 2 is characterized in that described case is the hard case (18) of safety helmet type or the soft case (19) of liner skeleton outsourcing waterproof cloth; Described breather pipe (2) is positioned at outside the described hard case (18), or is positioned at described soft case (19); In described soft case (19), also be provided with the top frenulum (20) of band hasp, and the two ends of described top frenulum (20) are fixed with the lower edge of described soft case (19) dual-side respectively.
4. dustproof positive seal head-shield according to claim 3, it is characterized in that also being provided with the big sheath of wearing with neck (21) in described soft case (19) lower edge, the front upper part opening of described big sheath (21) is connected with the sealing of described guard shield (4) bottom with described observation window (1) dual-side, the wherein said aperture of giving vent to anger (8) still is exposed, and the upper back opening edge of described big sheath (21) is connected with the lower edge sealing of described soft case (19) back; Simultaneously also be provided with connection strap (22) between the two at this position, frenulum (9 ') after establish one in addition in the described connection strap (22), substitute original described back frenulum (9), and fixedly connected with described guard shield (4) corresponding site respectively again in the two ends of being somebody's turn to do back frenulum (9 ') and described connection strap (22), and middle passing with another tight locking button (7) flexibly connects from described connection strap (22) rear portion at the center of described back frenulum (9 ').
5. dustproof positive seal head-shield according to claim 3, it is characterized in that also being provided with the described big sheath of wearing with neck (21) in described hard case (18) lower edge, the front upper part opening of described big sheath (21) is connected with the sealing of described guard shield (4) bottom with described observation window (1) dual-side, the wherein said aperture of giving vent to anger (8) still is exposed, and the upper back opening of described big sheath (21) is connected with the lower edge sealing of described hard case (18) back; Simultaneously also be provided with connection strap (22) between the two at this position, frenulum (9 ') after establish one in addition in the described connection strap (22), substitute original described back frenulum (9), and fixedly connected with described guard shield (4) corresponding site respectively again in the two ends of being somebody's turn to do back frenulum (9 ') and described connection strap (22), and middle passing with another tight locking button (7) flexibly connects from described connection strap (22) rear portion at the center of described back frenulum (9 ').
6. according to claim 4 or 5 described dustproof positive seal head-shields, it is characterized in that also being provided with the aperture (8 ') of giving vent to anger at the top of described hard case (18) and soft case (19).
7. dustproof positive seal head-shield according to claim 6 is characterized in that also being pasted with transparent protective film on the outer surface of described observation window (1).
8. dustproof positive seal head-shield according to claim 7, it is characterized in that also comprising and to detect the per minute air demand greater than 150 liters device, in the middle of comprising, it is the cylindrical shell of taper seat (23), middle part horizontal positioned lightweight buoy (24) in described cylindrical shell (23), the center is provided with balance weight body below the described buoy (24), and axis direction is carved with graticule (25) in described cylindrical shell (23) wall upper edge; Described cylindrical shell (23) small-caliber end is equipped with described outlet (15) downwards.
9. dustproof positive seal head-shield according to claim 8, the weight that it is characterized in that described buoy (24) are 17～19 grams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201698919U CN201064629Y (en) | 2007-07-25 | 2007-07-25 | Dustproof positive pressure sealing hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201698919U CN201064629Y (en) | 2007-07-25 | 2007-07-25 | Dustproof positive pressure sealing hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201064629Y true CN201064629Y (en) | 2008-05-28 |
Family
ID=39481787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201698919U Expired - Fee Related CN201064629Y (en) | 2007-07-25 | 2007-07-25 | Dustproof positive pressure sealing hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201064629Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127631A (en) * | 2013-03-12 | 2013-06-05 | 吴颖文 | Air cleaner |
| CN106376989A (en) * | 2015-07-28 | 2017-02-08 | 天津市海正泰克塑胶制品有限公司 | Sanitary separation head cover |
| CN111167033A (en) * | 2020-02-28 | 2020-05-19 | 苏州理想眼科医院有限公司 | Positive pressure protective hood |
| CN111420316A (en) * | 2020-04-01 | 2020-07-17 | 北京航天新风机械设备有限责任公司 | Intelligent micro-positive pressure protective hood |
-
2007
- 2007-07-25 CN CNU2007201698919U patent/CN201064629Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127631A (en) * | 2013-03-12 | 2013-06-05 | 吴颖文 | Air cleaner |
| CN106376989A (en) * | 2015-07-28 | 2017-02-08 | 天津市海正泰克塑胶制品有限公司 | Sanitary separation head cover |
| CN111167033A (en) * | 2020-02-28 | 2020-05-19 | 苏州理想眼科医院有限公司 | Positive pressure protective hood |
| CN111420316A (en) * | 2020-04-01 | 2020-07-17 | 北京航天新风机械设备有限责任公司 | Intelligent micro-positive pressure protective hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20160725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |