CN111084944A - Full-surrounding protective hood - Google Patents
Full-surrounding protective hood Download PDFInfo
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- CN111084944A CN111084944A CN202010091492.5A CN202010091492A CN111084944A CN 111084944 A CN111084944 A CN 111084944A CN 202010091492 A CN202010091492 A CN 202010091492A CN 111084944 A CN111084944 A CN 111084944A
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- assembly part
- filtering layer
- filtering
- annular
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- 230000001681 protective effect Effects 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 85
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000741 silica gel Substances 0.000 claims description 20
- 229910002027 silica gel Inorganic materials 0.000 claims description 20
- 229920000742 Cotton Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 15
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 244000052616 bacterial pathogen Species 0.000 abstract description 2
- 230000000452 restraining effect Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 241000700605 Viruses Species 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010035664 Pneumonia Diseases 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 208000001528 Coronaviridae Infections Diseases 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/04—Gas helmets
- A62B18/045—Gas helmets with fans for delivering air for breathing mounted in or on the helmet
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
Abstract
The invention discloses a full-enclosure protective hood, which comprises a transparent hood body, wherein the front side of the transparent hood body is connected with a ventilation interface, a gas outlet filtering component is installed at the ventilation interface, the bottom of the transparent hood body is provided with an opening, the periphery of the bottom of the transparent hood body is connected with a first assembly part and a second assembly part, the first assembly part and the second assembly part are both of annular structures, the first assembly part and the second assembly part are buckled with each other, and the bottom of the transparent hood body is also provided with an annular restraint part for sealing the transparent hood body; be equipped with annular boss on the lateral wall of second assembly part, be fixed with four engaging lugs on the annular boss, the left and right sides of the translucent cover body is equipped with a first fixed band respectively, and two tip of first fixed band rotate respectively to be connected in the front on two engaging lugs that correspond in the back. The invention can solve the problems that the protective tool is unstable in sealing when a front-line worker in a hospital isolates germs, and the whole head cannot be protected due to pressure injury after long-time wearing.
Description
Technical Field
The invention relates to the field of protective articles, in particular to a full-surrounding protective hood.
Background
According to the statistical analysis of the pneumonia of the novel coronavirus which is already developed in China at present, the pneumonia transmission ways of the novel coronavirus infection which can be determined at present mainly comprise direct transmission, aerosol transmission and contact transmission. The risk of infection is great when the doctor examines for the patient, sees a doctor, in order to protect the healthy of the medical personnel of first line, need to wear protective device. In order to prevent viruses or polluted air from entering the respiratory system of a human body, the traditional method mostly adopts a mask form for protection or additionally adopts goggles as protection for eyes, but the method has the following defects: 1. the mask and the goggles can only protect a single part, the sealing is unstable, and serious pressure injury can occur after long-time wearing; 2. particles with viruses may adhere to hair, causing cross-infection, and conventional protective clothing is cumbersome to put on and take off, and takes a long time.
Disclosure of Invention
The invention provides a full-surrounding protective hood, which aims to solve the problems that when a front-line worker in a hospital isolates germs, a protective tool is unstable in sealing, and the whole head cannot be protected due to pressure injury after being worn for a long time.
The invention adopts the technical scheme that the full-enclosure protective hood comprises a transparent hood body, wherein the front side of the transparent hood body is connected with a ventilation interface, the ventilation interface is provided with a gas outlet filtering component, the gas outlet filtering component comprises a filtering film and a filtering cover, the filtering cover is provided with a plurality of air holes, the filtering film is pressed between the ventilation interface and the filtering cover, the bottom of the transparent hood body is provided with an opening, the periphery of the bottom of the transparent hood body is connected with a first assembly part and a second assembly part, the first assembly part and the second assembly part are both of annular structures, the first assembly part and the second assembly part are buckled with each other, and the bottom of the transparent hood body is also provided with an annular restraining part for sealing the transparent hood body; be equipped with annular boss on the lateral wall of second assembly part, be fixed with four engaging lugs on the annular boss, the left and right sides of the translucent cover body is equipped with a first fixed band respectively, and two tip of first fixed band rotate respectively to be connected in front and back on two engaging lugs that correspond, during the use, the distance of the bottom of first fixed band to the about-component bottom of annular and the distance phase-match of user's shoulder to the armpit.
Optionally, the cross-section of first assembly part is the shape of falling U, and the cross-section of second assembly part is the U-shaped, the annular restraint piece is annular silica gel, and annular silica gel's external diameter is greater than the bottom diameter of the translucent cover body, and annular silica gel's edge is together the pressure equipment in the recess of first assembly part and second assembly part with the bottom of the translucent cover body, and annular silica gel's internal diameter is less than the diameter of human neck.
Optionally, the cross-section of first assembly part is the shape of falling U, the cross-section of second assembly part is the U-shaped, the bottom pressure equipment of the translucent cover body is in the recess of first assembly part and second assembly part, the inside wall top of second assembly part is fixed with annular connection platform, be connected with the restraint gasbag as the annular restraint piece between the inside wall of annular connection platform and second assembly part, be provided with the interface of aerifing on the restraint gasbag, before aerifing, the internal diameter of restraint gasbag is greater than user's head circumference, after aerifing, the restraint gasbag can be kept apart translucent cover body and outside.
Optionally, the filtering membrane comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer which are sequentially attached from outside to inside, the first filtering layer and the fifth filtering layer are respectively composed of non-woven fabrics, the second filtering layer and the third filtering layer are composed of melt-blown fabrics, and the fourth filtering layer is composed of electrostatic cotton.
Optionally, the filtering membrane comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer which are sequentially attached from outside to inside, the first filtering layer and the fifth filtering layer are respectively composed of non-woven fabrics, the second filtering layer and the fourth filtering layer are composed of electrostatic cotton, and the third filtering layer is composed of melt-blown fabrics.
Optionally, a plurality of adjusting holes used for adjusting the length are formed in the first fixing belt, and the first fixing belt is installed on the connecting lug through the adjusting holes.
Optionally, the rear portion of the transparent cover body is provided with an air inlet, the air inlet is connected with an air inlet device through an air inlet pipe, a second fixing belt is installed on the air inlet device, and the air inlet device is fixed on the waist or the arm of a user through the second fixing belt.
Optionally, air inlet unit includes power component and filtration piece, and power component includes motor, fan, lithium cell and circuit board, the material of filtering the piece is the same with the filtration membrane material among the filter component of giving vent to anger.
Optionally, the internal mouth-nose housing that still is equipped with of translucent cover, the size of mouth-nose housing and user's mouth-nose portion size phase-match, the bottom border of mouth-nose housing is provided with and is used for sealing the sealed gasbag to user's face with mouth-nose housing, form the space of taking a breath between mouth-nose housing and user's the mouth-nose portion, stretch out the translucent cover body and with the interface connection that takes a breath through the outlet duct on the mouth-nose housing, the outlet duct both sides are provided with the third fixed band, the third fixed band is located the translucent cover body periphery.
Optionally, the connection mode of the sealing air bag and the mouth-nose housing is bonding, double-color injection molding integrated molding or integrated through buckle clamping.
By adopting the technical scheme, the invention has the following advantages:
1. the use of the invention can cover the whole head, prevent particles with virus from attaching to hair, and save related medical consumables (such as a mask, goggles and the like);
2. the bottom of the transparent cover body is sealed in a silica gel restraining manner or an air bag restraining manner, the silica gel type annular restraining member can realize automatic sealing, the air bag type annular restraining member can realize the isolation of the internal space and the external space of the transparent cover body after being inflated, external air is ensured not to enter the transparent cover body from the bottom of the transparent cover body, and the two materials are relatively soft, so that the pressure injury caused by long-time wearing can be avoided;
3. the adopted filtering membrane has a multilayer structure, so that the filtering efficiency and the airflow resistance can meet the medical protection requirement, the filtering is effectively realized, and the user is prevented from calling in particles with viruses;
4. when the mouth-nose cover casing is arranged in the transparent cover body, the mouth-nose cover casing is worn while the transparent cover body is worn, and the ventilation space is controlled in the mouth-nose cover casing, so that the phenomenon that the atomization in the transparent cover body influences the operation visual field is avoided;
5. the air inlet device can be fixed on the waist or the arm of a user, and the moving range of the user is not limited;
6. when the fully-enclosed hood with the air inlet device is adopted, the air inlet device can actively feed suitable fresh air into a user, the micro-positive pressure state can be kept in the transparent hood body through the air inlet device, the breathing position of the user is completely isolated from the external operation space, the personal safety of the user is effectively protected, and the breathing comfort level is improved.
Drawings
FIG. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is a schematic cross-sectional view of an annular restraining member in the form of an annular silica gel;
FIG. 3 is an enlarged partial schematic view at A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of the annular restraining member as a restraining balloon;
FIG. 5 is an enlarged partial schematic view at B in FIG. 4;
FIG. 6 is a schematic view of the structure of one of the filtration membranes of the present invention;
FIG. 7 is a schematic view of another filtration membrane of the present invention;
FIG. 8 is a second schematic structural view of the present invention;
FIG. 9 is a third schematic view of the present invention;
fig. 10 is a schematic cross-sectional structure of fig. 9.
Detailed Description
As shown in fig. 1 to 10, a full-enclosure protective hood of the present invention may take various forms, such as a passive full-enclosure hood without an air intake device, and an active full-enclosure hood with an air intake device.
The passive full-enclosure hood comprises a transparent hood body 2, the front side of the transparent hood body 2 is connected with a ventilation interface, a ventilation interface is provided with a ventilation filtering component 3, the ventilation filtering component 3 comprises a filtering membrane 32 and a filtering cover 31, the filtering cover 31 is provided with a plurality of ventilation holes, the filtering membrane 32 is pressed between the ventilation interface and the filtering cover 31, the bottom of the transparent hood body 2 is provided with an opening, the bottom periphery of the transparent hood body 2 is connected with a first assembly part 4 and a second assembly part 5, the first assembly part 4 and the second assembly part 5 are both of annular structures, the first assembly part 4 and the second assembly part 5 are buckled with each other, and the bottom of the transparent hood body 2 is further provided with an annular constraint part 8 for sealing the transparent hood body; be equipped with annular boss 51 on the lateral wall of second assembly part 5, be fixed with four engaging lug 52 on the annular boss 51, the left and right sides of the translucent cover body 2 is equipped with a first fixed band 53 respectively, and two tip of first fixed band 53 rotate respectively to be connected on two engaging lug 52 that correspond in the front and back, and during the use, the distance of the bottom of first fixed band 53 to the annular restraint 8 bottom matches with the distance of user's shoulder to the armpit. The first fixing strap 53 is provided with a plurality of adjusting holes 54 for adjusting the length, and the first fixing strap 53 is mounted on the connecting ear 52 through the adjusting holes 54, so that the length of the first fixing strap 53 can be adjusted conveniently according to the condition of a user.
The bottom of the transparent cover body 2 is sealed by silica gel constraint or air bag constraint.
The specific structure of the silica gel restraint seal is as follows: the cross-section of first assembly part 4 is the shape of falling U, and the cross-section of second assembly part 5 is the U-shaped, the about piece 8 of annular is annular silica gel, and annular silica gel's external diameter is greater than the bottom diameter of the translucent cover body 2, and annular silica gel's edge is together press-fit in the recess of first assembly part 4 and second assembly part 5 with the bottom of the translucent cover body 2, and annular silica gel's internal diameter is less than the diameter of human neck, because silica gel has elasticity, from the top down dresses the translucent cover body 2 after, human neck department can be hugged closely to annular silica gel, keeps apart the inner space of the translucent cover body 2 with the external world.
The specific structure of the airbag restraint seal is as follows: the cross-section of first assembly part 4 is the shape of falling U, the cross-section of second assembly part 5 is the U-shaped, the bottom pressure equipment of the translucent cover body 2 is in the recess of first assembly part 4 and second assembly part 5, the inside wall top of second assembly part 5 is fixed with annular connection platform 55, be connected with the restraint gasbag as annular restraint 8 between the inside wall of annular connection platform 55 and second assembly part 5, be provided with on the restraint gasbag and aerify interface 9, before aerifing, the internal diameter of restraint gasbag is greater than user's head and encloses, after aerifing, the restraint gasbag can be with translucent cover body 2 and outside isolation. After the restraint air bag is sleeved outside the neck, the restraint air bag is inflated to fill a gap between the transparent cover body 2 and the neck until the transparent cover body 2 is in a sealed state.
The filter membrane 32 can be used in two different embodiments.
As shown in fig. 6, scheme one: the filter membrane 32 comprises a first filter layer 321, a second filter layer 322, a third filter layer 323, a fourth filter layer 324 and a fifth filter layer 325 which are sequentially attached from outside to inside, the first filter layer 321 and the fifth filter layer 325 are respectively composed of non-woven fabrics, the second filter layer 322 and the third filter layer 323 are both composed of melt-blown fabrics, and the fourth filter layer 324 is composed of electrostatic cotton.
In the technical scheme, the first filter layer 321 of the filter membrane 32 is 45g/m2The fifth filter layer 325 is 20g/m2The non-woven fabric with the specification, the second filter layer 322 and the third filter layer 323 adopt 25g/m2The fourth filter layer 324 is 95g/m2Static cotton of the specification. Because in the medical environment, particles with virus are always floating in the air, and the particles cannot exist independently, the particles are often attached to dust in the air to form aerosol,filtration membrane 32 among this technical scheme blocks the pollutant through multilayer interception and electrostatic effect, and the quantity and the thickness of filter layer are suitable simultaneously, can not too much increase user's breathing air current resistance, do benefit to the health, through the test, adopt above-mentioned combination, and NaCl filtration efficiency 98.8%, air current resistance 11.50mmH2O, filtration efficiency and air current resistance homoenergetic satisfy the medical protection requirement.
As shown in fig. 7, scheme two: the filter membrane 32 comprises a first filter layer 321, a second filter layer 322, a third filter layer 323, a fourth filter layer 324 and a fifth filter layer 325 which are sequentially attached from outside to inside, the first filter layer 321 and the fifth filter layer 325 are respectively composed of non-woven fabrics, the second filter layer 322 and the fourth filter layer 324 are both composed of electrostatic cotton, and the third filter layer 323 is composed of melt-blown fabrics.
In the present technical solution, the first filter layer 321 is 45g/m2The fifth filter layer 325 is 20g/m2The nonwoven fabric, the second filter layer 322 and the fourth filter layer 324 are 95g/m2The third filter layer 323 is 25g/m of static cotton2Melt-blown cloth of the specification. Tests prove that the filtering membrane 32 in the technical scheme adopts the combination, the NaCl filtering efficiency is 96.55 percent, the airflow resistance is 6.23mmH2O, and both the filtering efficiency and the airflow resistance can meet the medical protection requirements.
As shown in fig. 9 and 10, the transparent cover body 2 is further provided with an oronasal housing 11, the size of the oronasal housing 11 is matched with the size of the oronasal part of the user, a sealing air bag 12 for sealing the oronasal housing 11 to the face of the user is arranged on the periphery of the bottom of the oronasal housing 11, a ventilation space is formed between the oronasal housing 11 and the oronasal part of the user, the oronasal housing 11 extends out of the transparent cover body through an air outlet pipe 13 and is connected with a ventilation interface, two sides of the air outlet pipe 13 are connected with third fixing belts 14, and the third fixing belts 14 are located on the periphery of the transparent cover body. The third fixing belts 14 arranged at the two sides of the air outlet pipe 13 are elastic belts, and the upper elastic belt and the lower elastic belt are arranged.
Wear the gauze mask body and wear oronasal housing 11 simultaneously, will take a breath the space control in oronasal housing 11, avoid the internal atomizing of gauze mask, influence the operation field of vision.
The connection mode of the sealing air bag 12 and the mouth-nose cover shell 11 can adopt bonding, double-shot injection molding integrated molding or be integrated through buckle clamping. The sealed balloon 12 may be an inflatable balloon.
The rear portion of the transparent cover body 2 of the active full-surrounding hood is provided with an air inlet, and the air inlet is connected with an air inlet device 6 through an air inlet pipe 1, specifically: the air inlet is fixed with connecting sleeve 10, and the one end of intake pipe 1 bonds on connecting sleeve, guarantees the leakproofness and the firmness of joint, and the other end and the air inlet unit 6 of intake pipe 1 are connected, still installs second fixed band 7 on the air inlet unit 6, and air inlet unit 6 is fixed in user's waist or arm through second fixed band 7, the loose and tight formula broadside belt among the prior art can be selected to second fixed band 7, and the waistband of loose and tight formula helps being applicable to the user of different sizes, and the waistband of broad can suitably alleviate user's pressure.
When the invention is used for protection, the invention needs to be worn from top to bottom, the arms at the two sides of the user respectively penetrate through the first fixing belts 53 at the left side and the right side of the transparent cover body 2, meanwhile, the annular restraint piece 8 is sleeved at the neck of the user, the silica gel type annular restraint piece 8 can realize automatic sealing, the air bag type annular restraint piece 8 can realize the separation of the internal space and the external space of the transparent cover body 2 after being inflated, when the separation is in place, the bottom of the first fixing belt 53 is just clamped under the armpit of the user, and the filtering membrane 32 at the ventilation interface on the transparent cover body 2 can realize the filtering function, thereby avoiding the user from inhaling the particles with the virus.
When the full-surrounding hood with the air inlet device 6 is adopted, the air inlet device 6 can actively feed proper fresh air into a user, the air inlet device 6 can be fixed on the waist or the arm of the user, the moving range of the user cannot be limited, the micro-positive pressure state can be kept in the transparent hood body 2 through the air inlet device 6, the breathing part of the user is completely isolated from the external operation space, and the personal safety of the user is effectively protected. Meanwhile, positive pressure of the gas space in the transparent cover body 2 is realized by the gas inlet device 6, and filtering resistance can be transferred, so that resistance of gas in the filtering process is born by the external gas inlet device 6, sufficient and appropriate fresh air can be directly delivered to respiratory organs of a human body, and the respiratory comfort is improved.
The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A full-enclosed protective hood, characterized in that: the air-permeable ventilating mask comprises a transparent mask body, wherein the front side of the transparent mask body is connected with a ventilating interface, an air-out filtering component is installed at the ventilating interface, the air-out filtering component comprises a filtering membrane and a filtering cover, a plurality of air holes are formed in the filtering cover, the filtering membrane is installed between the ventilating interface and the filtering cover, the bottom opening of the transparent mask body and the bottom periphery of the transparent mask body are connected with a first assembly part and a second assembly part, the first assembly part and the second assembly part are of annular structures, the first assembly part and the second assembly part are buckled with each other, and an annular constraint part for sealing the transparent mask body is further installed at; be equipped with annular boss on the lateral wall of second assembly part, be fixed with four engaging lugs on the annular boss, the left and right sides of the translucent cover body is equipped with a first fixed band respectively, and two tip of first fixed band rotate respectively to be connected in front and back on two engaging lugs that correspond, during the use, the distance of the bottom of first fixed band to the about-component bottom of annular and the distance phase-match of user's shoulder to the armpit.
2. A full-containment protective hood as claimed in claim 1, wherein: the cross-section of first assembly part is for falling the U-shaped, and the cross-section of second assembly part is the U-shaped, the annular restraint piece is annular silica gel, and annular silica gel's external diameter is greater than the bottom diameter of the translucent cover body, and annular silica gel's edge is together the pressure equipment in the recess of first assembly part and second assembly part with the bottom of the translucent cover body, and annular silica gel's internal diameter is less than the diameter of user's neck.
3. A full-containment protective hood as claimed in claim 1, wherein: the cross-section of first assembly part is for falling the U-shaped, the cross-section of second assembly part is the U-shaped, the bottom pressure equipment of the translucent cover body is in the recess of first assembly part and second assembly part, the inside wall top of second assembly part is fixed with annular connection platform, be connected with the restraint gasbag as the about piece of annular between the inside wall of annular connection platform and second assembly part, be provided with on the restraint gasbag and aerify the interface, before aerifing, the internal diameter of restraint gasbag is greater than user's head and encloses, after aerifing, the restraint gasbag can be kept apart translucent cover body and outside.
4. A full-containment protective hood as claimed in claim 1, wherein: the filtering membrane comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer which are sequentially attached from outside to inside, the first filtering layer and the fifth filtering layer are respectively composed of non-woven fabrics, the second filtering layer and the third filtering layer are composed of melt-blown fabrics, and the fourth filtering layer is composed of electrostatic cotton.
5. A full-containment protective hood as claimed in claim 1, wherein: the filtering membrane comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer which are sequentially attached from outside to inside, the first filtering layer and the fifth filtering layer are respectively composed of non-woven fabrics, the second filtering layer and the fourth filtering layer are composed of electrostatic cotton, and the third filtering layer is composed of melt-blown fabrics.
6. A full-containment protective hood as claimed in claim 1, wherein: a plurality of adjusting holes used for adjusting the length are formed in the first fixing belt, and the first fixing belt is installed on the connecting lug through the adjusting holes.
7. A full-containment protective hood as claimed in any one of claims 1 to 6, wherein: the rear portion of the transparent cover body is provided with an air inlet, the air inlet is connected with an air inlet device through an air inlet pipe, a second fixing belt is installed on the air inlet device, and the air inlet device is fixed on the waist or the arm of a user through the second fixing belt.
8. A full-containment protective hood as claimed in claim 7, wherein: the air inlet device comprises a power assembly and a filter piece, wherein the power assembly comprises a motor, a fan, a lithium battery and a circuit board, and the material of the filter piece is the same as the material of a filter membrane in the air outlet filter assembly.
9. A full-containment protective hood as claimed in any one of claims 1 to 6, wherein: still be equipped with the oronasal housing in the translucent cover body, the size of oronasal housing and user's oronasal part size phase-match, the bottom border of oronasal housing is provided with and is used for sealing the sealed gasbag to user's face with oronasal housing, forms the space of taking a breath between oronasal housing and the user's oronasal part, stretch out the translucent cover body and with the interface connection of taking a breath through the outlet duct on the oronasal housing, the outlet duct both sides are connected with the third fixed band, the third fixed band is located the translucent cover body periphery.
10. A full-containment protective hood as claimed in claim 9, wherein: the connection mode of the sealing air bag and the mouth-nose housing is bonding, double-color injection molding integrated molding or is integrated through buckle clamping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010091492.5A CN111084944B (en) | 2020-02-13 | 2020-02-13 | Full-surrounding protective hood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010091492.5A CN111084944B (en) | 2020-02-13 | 2020-02-13 | Full-surrounding protective hood |
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| CN111084944A true CN111084944A (en) | 2020-05-01 |
| CN111084944B CN111084944B (en) | 2024-03-26 |
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| CN202010091492.5A Active CN111084944B (en) | 2020-02-13 | 2020-02-13 | Full-surrounding protective hood |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558180A (en) * | 2020-05-19 | 2020-08-21 | 陈品杰 | Head full-wrapping protective mouth mask suitable for children |
| CN111569291A (en) * | 2020-05-19 | 2020-08-25 | 陈品杰 | Umbrella type head full-wrapping protective mouth mask |
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| CN102641563A (en) * | 2012-05-03 | 2012-08-22 | 中国人民解放军军事医学科学院卫生装备研究所 | Respiratory protection head cover for emergency escape |
| CN103706055A (en) * | 2013-12-17 | 2014-04-09 | 许均国 | Novel respirator |
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| CN111558180A (en) * | 2020-05-19 | 2020-08-21 | 陈品杰 | Head full-wrapping protective mouth mask suitable for children |
| CN111569291A (en) * | 2020-05-19 | 2020-08-25 | 陈品杰 | Umbrella type head full-wrapping protective mouth mask |
| CN111569291B (en) * | 2020-05-19 | 2021-08-20 | 广东诺梵生物科技有限公司 | Umbrella type head full-wrapping protective mouth mask |
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| CN111084944B (en) | 2024-03-26 |
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