CN111084944B - Full-surrounding protective hood - Google Patents
Full-surrounding protective hood Download PDFInfo
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- CN111084944B CN111084944B CN202010091492.5A CN202010091492A CN111084944B CN 111084944 B CN111084944 B CN 111084944B CN 202010091492 A CN202010091492 A CN 202010091492A CN 111084944 B CN111084944 B CN 111084944B
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- Prior art keywords
- cover body
- filtering
- filtering layer
- transparent cover
- assembly part
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- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 123
- 238000009423 ventilation Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims description 27
- 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
- 239000004745 nonwoven fabric Substances 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000000452 restraining effect Effects 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 2
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 244000052616 bacterial pathogen Species 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 241000700605 Viruses Species 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 208000025962 Crush injury Diseases 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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-surrounding protective hood which comprises a transparent hood body, wherein the front side of the transparent hood body is connected with a ventilation interface, an air outlet filtering assembly is arranged at the ventilation interface, the bottom of the transparent hood body is opened, a first assembly part and a second assembly part are connected with the bottom circumference of the transparent hood body, the first assembly part and the second assembly part are of annular structures, the first assembly part and the second assembly part are mutually buckled, and an annular constraint part for sealing the transparent hood body is also arranged at the bottom of the transparent hood body; the outer side wall of the second assembly part is provided with an annular boss, four connecting lugs are fixed on the annular boss, the left side and the right side of the transparent cover body are respectively provided with a first fixing belt, and two end parts of the first fixing belt are respectively connected to the two connecting lugs in a rotating mode. The invention can solve the problems that the sealing of the protective tool is unstable when first-line personnel in a hospital isolate germs, the pressure injury can occur when the protective tool is worn for a long time, and the whole head can not be protected.
Description
Technical Field
The invention relates to the field of protective articles, in particular to a full-surrounding protective hood.
Background
At present, the risk of infection is great when doctors examine and visit patients, and protective tools are needed to be worn in order to protect the health of first-line medical staff. In order to prevent viruses or polluted air from entering the respiratory system of a human body, protection in a mask mode or protection of eyes by adding goggles are mostly adopted at present, but the following defects exist in the mode: 1. the mask and the goggles can only protect a single part, the sealing is unstable, and severe crush injury can occur when the mask and the goggles are worn for a long time; 2. the particles with viruses can be attached to the hair to cause cross infection, and the traditional protective clothing is complicated 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 first-line personnel in a hospital isolate germs, the protective tool is unstable in sealing, and can be worn for a long time to cause crush injury, and the whole head cannot be protected.
The invention aims to solve the problems, and adopts the technical scheme that the full-surrounding protective hood comprises a transparent hood body, wherein the front side of the transparent hood body is connected with a ventilation interface, an air outlet filtering component is arranged at the ventilation interface, the air outlet 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 pressed between the ventilation interface and the filtering cover, a first assembly part and a second assembly part are connected to the bottom opening of the transparent hood body and the bottom circumference of the transparent hood body, the first assembly part and the second assembly part are of annular structures, the first assembly part and the second assembly part are mutually buckled, and an annular constraint part for sealing the transparent hood body is also arranged at the bottom of the transparent hood body; the outer side wall of the second assembly part is provided with an annular boss, four connecting lugs are fixed on the annular boss, the left side and the right side of the transparent cover body are respectively provided with a first fixing band, two end parts of the first fixing band are respectively connected to the two connecting lugs corresponding to the front part and the rear part in a rotating way, and when the transparent cover is used, the distance from the bottom of the first fixing band to the bottom of the annular constraint part is matched with the distance from the shoulder of a user to the armpit.
Optionally, the cross-section of first assembly part is the reverse U-shaped, and the cross-section of second assembly part is the U-shaped, annular restraint is annular silica gel, and annular silica gel's external diameter is greater than the bottom diameter of transparent cover body, and the edge of annular silica gel and the bottom of transparent cover body are together press fit in the recess of first assembly part and second assembly part, 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 reverse U-shaped, and the cross-section of second assembly part is the U-shaped, and the bottom pressure equipment of the transparent cover body is in the recess of first assembly part and second assembly part, and the inside wall top of second assembly part is fixed with annular connection platform, is connected with the restriction gasbag as annular restraint spare between annular connection platform and the inside wall of second assembly part, is provided with the interface of aerifing on the restriction gasbag, before aerifing, and the internal diameter of restriction gasbag is greater than user's head circumference, and after aerifing, the restriction gasbag can keep apart transparent cover body and outside.
Optionally, the filtration membrane includes first filter layer, second filter layer, third filter layer, fourth filter layer and fifth filter layer of laminating in proper order from outside to inside, and first filter layer and fifth filter layer constitute by the non-woven fabrics respectively, and second filter layer and third filter layer constitute by melt-blown cloth, and the fourth filter layer comprises static cotton.
Optionally, the filtration membrane includes first filter layer, second filter layer, third filter layer, fourth filter layer and the fifth filter layer of laminating in proper order from outside to inside, and first filter layer and fifth filter layer constitute by the non-woven fabrics respectively, and second filter layer and fourth filter layer constitute by static cotton, and the third filter layer comprises melt-blown cloth.
Optionally, a plurality of adjusting holes for adjusting the length are formed in the first fixing band, and the first fixing band is installed on the connecting lug through the adjusting holes.
Optionally, the rear portion of the transparent cover body is provided with the air inlet, and the air inlet is connected with an air inlet device through the intake pipe, installs the second fixed band on the air inlet device, and the air inlet device is fixed in user's waist or arm through the second fixed band.
Optionally, the air inlet device comprises a power component and a filtering piece, the power component comprises a motor, a fan, a lithium battery and a circuit board, and the filtering piece is made of the same material as a filtering membrane in the air outlet filtering component.
Optionally, still be equipped with the mouth nose housing in the transparent cover body, the size of mouth nose housing and user's mouth nose size phase-match, the bottom week of mouth nose housing is provided with the sealed gasbag that is used for sealing the mouth nose housing to user's face, form the space of taking a breath between mouth nose housing and the user's mouth nose, stretch out the transparent cover body and with the interface connection of taking 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 transparent cover outer periphery.
Optionally, the connection mode of the sealing air bag and the oral-nasal housing is bonding, double-color injection molding or clamping and connecting.
By adopting the technical scheme, the invention has the following advantages:
1. the invention can cover the whole head, avoid the particles with virus from adhering to the hair, and save related medical consumables (such as mask, goggles, etc.);
2. the bottom of the transparent cover body is sealed by silica gel constraint or air bag constraint, the silica gel type annular constraint piece can realize automatic sealing, the air bag type annular constraint piece 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, the two materials are relatively soft, and the pressure injury caused by long-time wearing can not occur;
3. the adopted filtering membrane is of a multi-layer structure, the filtering efficiency and the air flow resistance can meet the medical protection requirement, the filtering is effectively realized, and the particulate matters with viruses are prevented from being breathed in by a user;
4. when the transparent cover body is internally provided with the oral-nasal cover, the oral-nasal cover is worn while the transparent cover body is worn, so that the ventilation space is controlled in the oral-nasal cover, and the atomization in the transparent cover body is avoided, and the operation visual field is prevented from being influenced;
5. the air inlet device can be fixed on the waist or the arm of a user, and the movement range of the user is not limited;
6. when the full-surrounding hood with the air inlet device is adopted, the air inlet device can actively send in proper fresh air for 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 an external operation space, the personal safety of the user is effectively protected, and meanwhile the breathing comfort level is improved.
Drawings
FIG. 1 is one of the structural schematic diagrams of the present invention;
FIG. 2 is a schematic cross-sectional view of an annular restraining member of 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 an 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 filtering membranes according to the present invention;
FIG. 7 is a schematic view of another filtering membrane structure according to the present invention;
FIG. 8 is a second schematic diagram of the structure of the present invention;
FIG. 9 is a third schematic diagram of the structure of the present invention;
fig. 10 is a schematic cross-sectional structure of fig. 9.
Detailed Description
As shown in fig. 1-10, a full-enclosure protective hood of the present invention takes many 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-surrounding hood comprises a transparent hood body 2, a ventilation interface is connected to the front side of the transparent hood body 2, an air outlet filter assembly 3 is arranged at the ventilation interface, the air outlet filter assembly 3 comprises a filter membrane 32 and a filter cover 31, a plurality of air holes are formed in the filter cover 31, the filter membrane 32 is pressed between the ventilation interface and the filter cover 31, the bottom of the transparent hood body 2 is opened, a first assembly part 4 and a second assembly part 5 are connected to the periphery of the bottom of the transparent hood body 2, the first assembly part 4 and the second assembly part 5 are of annular structures, the first assembly part 4 and the second assembly part 5 are mutually buckled, and an annular constraint part 8 for sealing the transparent hood body 2 is further arranged at the bottom of the transparent hood body 2; the outer side wall of the second assembly part 5 is provided with an annular boss 51, four connecting lugs 52 are fixed on the annular boss 51, the left side and the right side of the transparent cover body 2 are respectively provided with a first fixing belt 53, two ends of the first fixing belt 53 are respectively connected to the two connecting lugs 52 corresponding to the front part and the rear part in a rotating way, and when the transparent cover is used, the distance from the bottom of the first fixing belt 53 to the bottom of the annular constraint part 8 is matched with the distance from the shoulder of a user 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 lug 52 through the adjusting holes 54, so that the length of the first fixing strap 53 can be adjusted 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 constraint seal is as follows: the cross-section of first assembly part 4 is the reverse U-shaped, and the cross-section of second assembly part 5 is the U-shaped, annular restraint 8 is annular silica gel, and annular silica gel's external diameter is greater than the bottom diameter of transparent cover body 2, and the edge of annular silica gel and the bottom of transparent cover body 2 together pressure equipment are in the recess of first assembly part 4 and second assembly part 5, 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 transparent cover body 2 after, and annular silica gel can hug closely human neck department, keeps apart the inner space of transparent cover body 2 with the external world.
The specific structure of the air bag restraint seal is as follows: the cross-section of first assembly part 4 is the reverse U-shaped, the cross-section of second assembly part 5 is the U-shaped, the bottom pressure equipment of transparent 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 constraint gasbag as annular restraint 8 between the inside wall of annular connection platform 55 and second assembly part 5, be provided with on the constraint gasbag and aerify interface 9, before aerifing, the internal diameter of constraint gasbag is greater than user's head circumference, after aerifing, the constraint gasbag can keep apart transparent cover body 2 with outside. After the restraint airbag is sleeved outside the neck, the restraint airbag is inflated, and gaps between the transparent cover body 2 and the neck are filled until the transparent cover body 2 is in a sealing state.
The filtering membrane 32 may take two different forms.
As shown in fig. 6, scheme one: the filtering membrane 32 comprises a first filtering layer 321, a second filtering layer 322, a third filtering layer 323, a fourth filtering layer 324 and a fifth filtering layer 325 which are sequentially attached from outside to inside, wherein the first filtering layer 321 and the fifth filtering layer 325 are respectively formed by non-woven fabrics, the second filtering layer 322 and the third filtering layer 323 are respectively formed by melt-blown cloth, and the fourth filtering layer 324 is formed by electrostatic cotton.
In the present embodiment, the first filter layer 321 of the filter membrane 32 is 45g/m 2 The fifth filter layer 325 is a nonwoven fabric of 20g/m 2 The second filter layer 322 and the third filter layer 323 are respectively 25g/m nonwoven fabrics 2 The fourth filter layer 324 is a meltblown of 95g/m gauge 2 Electrostatic cotton of the specification. Because in medical environment, often have the particulate matter that has the toxicity float in the air, and these particulate matter can not independently exist again, they often depend on the dust in the air and form the aerosol, the filtration membrane 32 in this technical scheme stops the pollutant through multilayer interception and electrostatic effect, and quantity and thickness of filter layer are suitable simultaneously, can not excessively increase user's respiratory airflow resistance, do benefit to human health, through the test, adopts above-mentioned combination, naCl filtration efficiency 98.8%, airflow resistance 11.50mmH2O, filtration efficiency and airflow resistance can all satisfy medical protection requirement.
As shown in fig. 7, scheme two: the filtering membrane 32 comprises a first filtering layer 321, a second filtering layer 322, a third filtering layer 323, a fourth filtering layer 324 and a fifth filtering layer 325 which are sequentially attached from outside to inside, wherein the first filtering layer 321 and the fifth filtering layer 325 are respectively formed by non-woven fabrics, the second filtering layer 322 and the fourth filtering layer 324 are respectively formed by electrostatic cotton, and the third filtering layer 323 is formed by melt-blown cloth.
In the present embodiment, the first filter layer 321 is 45g/m 2 The fifth filter layer 325 is a nonwoven fabric of 20g/m 2 The second filter layer 322 and the fourth filter layer 324 are made of non-woven fabrics with the specification of 95g/m 2 The third filter layer 323 adopts 25g/m electrostatic cotton 2 And (5) melting and spraying the materials in the specification. Through tests, the filtering membrane 32 in the technical scheme adopts the combination, the NaCl filtering efficiency is 96.55 percent, the air flow resistance is 6.23mmH2O, and the filtering efficiency and the air flow resistance can meet the medical protection requirements.
As shown in fig. 9 and 10, an oronasal cover 11 is further arranged in the transparent cover body 2, the size of the oronasal cover 11 is matched with the size of the mouth and the nose of a user, a sealing air bag 12 for sealing the oronasal cover 11 to the face of the user is arranged on the periphery of the bottom of the oronasal cover 11, a ventilation space is formed between the oronasal cover 11 and the mouth and the nose of the user, the oronasal cover 11 extends out of the transparent cover body through an air outlet pipe 13 and is connected with a ventilation interface, third fixing belts 14 are connected to two sides of the air outlet pipe 13, and the third fixing belts 14 are positioned on the periphery of the transparent cover body. The third fixing belts 14 arranged on the two sides of the air outlet pipe 13 are elastic belts, and the elastic belts are provided with an upper part and a lower part.
Wearing the transparent cover body and wearing the oral-nasal cover shell 11 at the same time, controlling the ventilation space in the oral-nasal cover shell 11, avoiding the atomization in the transparent cover body and affecting the operation visual field.
The sealing air bag 12 and the oral-nasal housing 11 can be connected in an integrated manner by adopting bonding, double-color injection molding or clamping through a buckle. The sealing bladder 12 may be an inflatable bladder.
The rear part of the transparent cover body 2 of the active full-surrounding head cover is provided with an air inlet, and the air inlet is connected with an air inlet device 6 through an air inlet pipe 1, in particular: the air inlet department 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 junction, and the other end and the air inlet unit 6 of intake pipe 1 are connected, still install 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 wide waistband of elasticity among the prior art can be selected for use to second fixed band 7, and the waistband of elasticity helps being applicable to the user of different sizes, and wider waistband can suitably alleviate user's pressure.
The air inlet device 6 comprises a power component and a filtering piece, the power component comprises a motor, a fan, a lithium battery and a circuit board, the filtering piece is made of the same material as the filtering membrane 32 in the air outlet filtering component 3, and the filtering piece is arranged in front of an air inlet of the fan. The structure, connection mode and working principle of the motor, the fan, the lithium battery and the circuit board are the prior art, and detailed description is omitted.
When the inflatable protective cover is used for protection, arms on two sides of a user respectively penetrate through the first fixing belts 53 on the left side and the right side of the transparent cover body 2, meanwhile, the annular restraining piece 8 is sleeved on the neck of the user, the silica gel type annular restraining piece 8 can realize automatic sealing, the air bag type annular restraining piece 8 can realize isolation between the inner space and the outer space of the transparent cover body 2 after inflation, when the isolation is in place, the bottom of the first fixing belts 53 is just clamped under the armpits of the user, the filtering film 32 at the ventilation interface on the transparent cover body 2 can realize the filtering effect, and the user is prevented from breathing in particles with viruses.
When the full-surrounding hood with the air inlet device 6 is adopted, the air inlet device 6 can actively send proper fresh air to a user, the air inlet device 6 can be fixed on the waist or the arm of the user, the movable range of the user can not be limited, the micro-positive pressure state can be kept in the transparent hood body 2 through the air inlet device 6, the breathing position of the user is completely isolated from an external working space, and the personal safety of the user is effectively protected. Simultaneously, utilize air inlet unit 6 to realize the positive pressure of transparent cover body 2 inside gas space, but transfer filtration resistance makes the resistance of gas in the filtration process born by outside air inlet unit 6, can ensure to directly send the human respiratory organ with enough suitable fresh air, improves the breathing comfort level.
The above embodiments are not limited in any way by the shape, materials, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the protection scope of the technical solution of the present invention.
Claims (14)
1. A full surrounding protective hood, characterized in that: the ventilation device comprises a transparent cover body, wherein the front side of the transparent cover body is connected with a ventilation interface, an air outlet filtering assembly is arranged at the ventilation interface, the air outlet filtering assembly comprises a filtering membrane and a filtering cover, a plurality of air holes are formed in the filtering cover, the filtering membrane is arranged between the ventilation interface and the filtering cover, a first assembly part and a second assembly part are connected to the bottom opening of the transparent cover body and the bottom circumference of the transparent cover body, the first assembly part and the second assembly part are of annular structures, the first assembly part and the second assembly part are mutually buckled, and an annular constraint part for sealing the transparent cover body is further arranged at the bottom of the transparent cover body; the outer side wall of the second assembly part is provided with an annular boss, four connecting lugs are fixed on the annular boss, the left side and the right side of the transparent cover body are respectively provided with a first fixing belt, two end parts of the first fixing belt are respectively connected with the two connecting lugs corresponding to the front part and the rear part in a rotating way, and when the transparent cover is used, the distance from the bottom of the first fixing belt to the bottom of the annular constraint part is matched with the distance from the shoulder of a user to the armpit;
the cross section of the first assembly part is in an inverted U shape, the cross section of the second assembly part is in a U shape, the annular restraining part is annular silica gel, the outer diameter of the annular silica gel is larger than the diameter of the bottom of the transparent cover body, the edge of the annular silica gel and the bottom of the transparent cover body are pressed into grooves of the first assembly part and the second assembly part together, and the inner diameter of the annular silica gel is smaller than the diameter of the neck of a user;
a plurality of regulation holes for adjusting the length are arranged on the first fixing band, and the first fixing band is provided with the regulation holes and is arranged on the connecting lugs.
2. A full enclosure hood according to 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, wherein the first filtering layer and the fifth filtering layer are respectively formed by non-woven fabrics, the second filtering layer and the third filtering layer are respectively formed by melt-blown cloth, and the fourth filtering layer is formed by electrostatic cotton.
3. A full enclosure hood according to 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, wherein the first filtering layer and the fifth filtering layer are respectively formed by non-woven fabrics, the second filtering layer and the fourth filtering layer are respectively formed by electrostatic cotton, and the third filtering layer is formed by melt-blown cloth.
4. A full enclosure hood according to any one of claims 1 to 3 wherein: the rear part 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 arranged 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.
5. A full enclosure hood according to claim 4 wherein: the air inlet device comprises a power component and a filtering piece, wherein the power component comprises a motor, a fan, a lithium battery and a circuit board, and the filtering piece is made of the same material as a filtering membrane in the air outlet filtering component.
6. A full enclosure hood according to any one of claims 1 to 3 wherein: the transparent cover body is internally provided with an oronasal cover body, the size of the oronasal cover body is matched with the size of the oronasal part of a user, a sealing air bag for sealing the oronasal cover body to the face of the user is arranged on the periphery of the bottom of the oronasal cover body, a ventilation space is formed between the oronasal cover body and the oronasal part of the user, the oronasal cover body extends out of the transparent cover body through an air outlet pipe and is connected with a ventilation interface, two sides of the air outlet pipe are connected with third fixing belts, and the third fixing belts are positioned on the periphery of the transparent cover body.
7. A full enclosure hood according to claim 6 wherein: the connection mode of the sealing air bag and the oral-nasal housing is bonding, double-color injection molding integrated molding or clamping integrated by a buckle.
8. A full surrounding protective hood, characterized in that: the ventilation device comprises a transparent cover body, wherein the front side of the transparent cover body is connected with a ventilation interface, an air outlet filtering assembly is arranged at the ventilation interface, the air outlet filtering assembly comprises a filtering membrane and a filtering cover, a plurality of air holes are formed in the filtering cover, the filtering membrane is arranged between the ventilation interface and the filtering cover, a first assembly part and a second assembly part are connected to the bottom opening of the transparent cover body and the bottom circumference of the transparent cover body, the first assembly part and the second assembly part are of annular structures, the first assembly part and the second assembly part are mutually buckled, and an annular constraint part for sealing the transparent cover body is further arranged at the bottom of the transparent cover body; the outer side wall of the second assembly part is provided with an annular boss, four connecting lugs are fixed on the annular boss, the left side and the right side of the transparent cover body are respectively provided with a first fixing belt, two end parts of the first fixing belt are respectively connected with the two connecting lugs corresponding to the front part and the rear part in a rotating way, and when the transparent cover is used, the distance from the bottom of the first fixing belt to the bottom of the annular constraint part is matched with the distance from the shoulder of a user to the armpit;
the cross section of the first assembly part is in an inverted U shape, the cross section of the second assembly part is in a U shape, the bottom of the transparent cover body is pressed in grooves of the first assembly part and the second assembly part, an annular connecting table is fixed at the top of the inner side wall of the second assembly part, a constraint air bag serving as an annular constraint part is connected between the annular connecting table and the inner side wall of the second assembly part, an inflation interface is arranged on the constraint air bag, the inner diameter of the constraint air bag is larger than the head circumference of a user before inflation, and the constraint air bag can isolate the transparent cover body from the outside after inflation;
a plurality of regulation holes for adjusting the length are arranged on the first fixing band, and the first fixing band is provided with the regulation holes and is arranged on the connecting lugs.
9. A full enclosure protective hood according to claim 8 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, wherein the first filtering layer and the fifth filtering layer are respectively formed by non-woven fabrics, the second filtering layer and the third filtering layer are respectively formed by melt-blown cloth, and the fourth filtering layer is formed by electrostatic cotton.
10. A full enclosure protective hood according to claim 8 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, wherein the first filtering layer and the fifth filtering layer are respectively formed by non-woven fabrics, the second filtering layer and the fourth filtering layer are respectively formed by electrostatic cotton, and the third filtering layer is formed by melt-blown cloth.
11. A full enclosure hood according to any one of claims 8 to 10 wherein: the rear part 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 arranged 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.
12. A full enclosure hood according to claim 11 wherein: the air inlet device comprises a power component and a filtering piece, wherein the power component comprises a motor, a fan, a lithium battery and a circuit board, and the filtering piece is made of the same material as a filtering membrane in the air outlet filtering component.
13. A full enclosure hood according to any one of claims 8 to 10 wherein: the transparent cover body is internally provided with an oronasal cover body, the size of the oronasal cover body is matched with the size of the oronasal part of a user, a sealing air bag for sealing the oronasal cover body to the face of the user is arranged on the periphery of the bottom of the oronasal cover body, a ventilation space is formed between the oronasal cover body and the oronasal part of the user, the oronasal cover body extends out of the transparent cover body through an air outlet pipe and is connected with a ventilation interface, two sides of the air outlet pipe are connected with third fixing belts, and the third fixing belts are positioned on the periphery of the transparent cover body.
14. A full enclosure protective headgear according to claim 13, wherein: the connection mode of the sealing air bag and the oral-nasal housing is bonding, double-color injection molding integrated molding or clamping integrated by a buckle.
Priority Applications (1)
| 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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| Publication Number | Publication Date |
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| CN111084944A CN111084944A (en) | 2020-05-01 |
| CN111084944B true CN111084944B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010091492.5A Active CN111084944B (en) | 2020-02-13 | 2020-02-13 | Full-surrounding protective hood |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558180B (en) * | 2020-05-19 | 2021-04-27 | 浙江习泰汽车部件有限公司 | Head full-wrapping protective mouth mask suitable for children |
| 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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|---|---|---|---|---|
| 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 |
| CN204815436U (en) * | 2015-02-10 | 2015-12-02 | 张顺 | Breathing mask with prevent particulate matter respirator |
| CN208260025U (en) * | 2017-11-16 | 2018-12-21 | 上海依民安全装备有限公司 | A kind of gas mask |
| CN211986721U (en) * | 2020-02-13 | 2020-11-24 | 河南驼人医疗器械集团有限公司 | Full-surrounding protective hood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2013209363A1 (en) * | 2013-07-26 | 2015-02-12 | Tristan Brega | Respiratory protection mask |
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2020
- 2020-02-13 CN CN202010091492.5A patent/CN111084944B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN204815436U (en) * | 2015-02-10 | 2015-12-02 | 张顺 | Breathing mask with prevent particulate matter respirator |
| CN208260025U (en) * | 2017-11-16 | 2018-12-21 | 上海依民安全装备有限公司 | A kind of gas mask |
| CN211986721U (en) * | 2020-02-13 | 2020-11-24 | 河南驼人医疗器械集团有限公司 | Full-surrounding protective hood |
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| CN111084944A (en) | 2020-05-01 |
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