CN115970188A - Disposable oxygen flushing type positive pressure protective hood and wearing method - Google Patents
Disposable oxygen flushing type positive pressure protective hood and wearing method Download PDFInfo
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- CN115970188A CN115970188A CN202211659994.9A CN202211659994A CN115970188A CN 115970188 A CN115970188 A CN 115970188A CN 202211659994 A CN202211659994 A CN 202211659994A CN 115970188 A CN115970188 A CN 115970188A
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- face
- fixing frame
- oxygen
- pipe
- screen
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 80
- 239000001301 oxygen Substances 0.000 title claims abstract description 80
- 230000001681 protective effect Effects 0.000 title claims abstract description 30
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 22
- 210000003128 head Anatomy 0.000 claims description 39
- 229920000742 Cotton Polymers 0.000 claims description 17
- 230000001815 facial effect Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 210000001061 forehead Anatomy 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 5
- 206010020591 Hypercapnia Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 208000024891 symptom Diseases 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 58
- 230000000813 microbial effect Effects 0.000 description 9
- 230000002265 prevention Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 210000001508 eye Anatomy 0.000 description 3
- 206010008479 Chest Pain Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 208000019693 Lung disease Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 206010033557 Palpitations Diseases 0.000 description 1
- 206010042434 Sudden death Diseases 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
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- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 230000003340 mental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- 206010042772 syncope Diseases 0.000 description 1
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- 210000003437 trachea Anatomy 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a disposable oxygen flushing type positive pressure protective hood and a wearing method, and belongs to the technical field of protective device methods. For solving current protective face mask and being difficult to realize that expired gas discharges and can repeat the inspiration, steam can condense and influence the problem in operator's field of vision at the face shield. The face screen is arranged at the corresponding position of the face, the outer layer of covering cloth is arranged outside the fixing frame, the air inlet system comprises an oxygen connecting pipe, one end of the oxygen connecting pipe is connected with oxygen supply equipment, the other end of the oxygen connecting pipe extends to the position above the face screen in the face screen, the U-shaped exhaust pipe is provided with a plurality of exhaust holes, the end part of the U-shaped exhaust pipe is connected with the main exhaust pipe through an exhaust pipe Y-shaped joint, and the main exhaust pipe is connected with an exhaust device with an air exhaust function. Ensures that the exhaled air is not repeatedly inhaled, and avoids the hypercapnia symptom of the human body caused by carbon dioxide mixed in the inhaled air; the phenomenon that the operation visual field is influenced by condensation of the exhaled water vapor at the face screen is avoided; the relatively dry and comfortable environment in the head cover is ensured, the stuffy feeling after wearing is reduced, and the effect of cooling the face is achieved.
Description
Technical Field
The invention relates to the technical field of medical protection devices, in particular to a disposable oxygen flushing type positive pressure protection hood and a wearing method.
Background
Along with epidemic situations, various protective substances are dug deeply, most typically, an epidemic prevention first-line doctor still uses a combination of a medical mask and goggles to protect important parts such as nasal cavities, oral cavities and eyes, but the skin of the face is still exposed, various elastic rib binding bands are overlapped and combined to form air gaps and skin gaps and press ears and the skin of the face, lots of viruses still adhere to the hidden face pinna, auricles and hair, and if the epidemic prevention first-line doctor wears isolation clothes, the pressure of the head and the face is further increased. Not only is the wearing complicated, but also the comfort is greatly reduced, and the pair of the disposable health-care glasses can form great psychological pressure for a front-line doctor in the face of non-porous and non-invasive tiny viruses.
And other epidemic prevention articles: such as a filtering respirator, the price is high and the popularization is not possible at all; the incompletely-closed epidemic prevention mask can be suitable for preventing spray and is not suitable for spreading epidemic prevention air capsules; the completely closed epidemic prevention mask can be suitable for liquid splashing places and is also not suitable for preventing and controlling air virus transmission.
The protective hood can effectively prevent particles harmful to human bodies, such as micro-dust, bacteria, droplets and the like in the ambient air from directly contacting with a wearer, and has wide application in the aspects of medical health, labor protection, experimental research and the like. The traditional hood with single protection function can not meet the requirement of people on equipment comfort, and the problem of discomfort such as oxygen deficiency, chest distress, eyepiece fogging and the like caused in the process of wearing the protective hood is more and more prominent. The traditional hood only solves the problem of oxygen inhalation, cannot effectively and fully discharge carbon dioxide, has the advantages that the carbon dioxide exhaled to different degrees is repeatedly inhaled into a human body, the concentration of the carbon dioxide in the human body is increased in long-term use, a series of hypercapnia symptoms such as dyspnea, tachypnea, chest distress and palpitation are caused, the visual and cerebral activities of a wearer are possibly influenced, the judgment of the wearer is influenced, and syncope or sudden death can be caused if the wearer has compensatory chronic heart and lung diseases or large mental body pressure in long-term work.
In addition, current protective apparatus is when dressing for a long time, all can condense water smoke and then shelter from the operator field of vision on the face screen to different degrees, and this not only influences operator's work efficiency and effect, also can bring hidden danger (if epidemic prevention vehicle driver face screen hazes) to operator's personal safety.
In view of the above, there is a need for a protective device that can effectively exhaust exhaled air and prevent repeated inhalation and condensation of water vapor on a panel from affecting the visual field of an operator.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
in order to solve current protective face mask and be difficult to realize that expired gas discharges and can repeat the inspiration, steam can condense in the problem that the face shield influences the operator field of vision.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a disposable oxygen flushing type positive pressure protective hood and a wearing method thereof, wherein the disposable oxygen flushing type positive pressure protective hood comprises a face screen frame, an air inlet system, an exhaust system and an outer layer of cloth, the face screen frame comprises a fixing frame and a face screen which are used for fixing, the face screen is arranged at the corresponding position of a face, the outer layer of cloth is arranged outside the fixing frame, the air inlet system comprises an oxygen connecting pipe, one end of the oxygen connecting pipe is used for being connected with oxygen supply equipment, the other end of the oxygen connecting pipe extends into the face screen, a port of the oxygen connecting pipe is positioned above the face screen, the exhaust system comprises a U-shaped exhaust pipe and a main exhaust pipe, the U-shaped exhaust pipe is arranged in the face screen, a plurality of exhaust holes are formed in the area, close to the face, of the U-shaped exhaust pipe, the end part of the U-shaped exhaust pipe, extending out of the face screen, is connected with the main exhaust pipe through a Y-shaped joint of the exhaust pipe, and the main exhaust pipe is connected with an exhaust device with an air exhaust function.
Further, the mount includes head mount, facial mount and inlet and outlet pipe mount, the head mount includes the semi-annular mount of annular mount and annular mount top, the opposite side of semi-annular mount is equipped with the facial mount of adjustable size, the both sides of facial mount pass through the rotatory fixed screw connection of mount with annular mount, be equipped with the inlet and outlet pipe mount on the annular mount, the inlet and outlet pipe mount is used for fixed air intake system and exhaust system, the upper end and the annular mount or the inlet and outlet pipe mount of face screen are connected, outer cover cloth parcel head mount, face screen and face mount in proper order.
Furthermore, air intake system still includes that the intake pipe turns round, intake pipe Y type connects, left side screen intake pipe and right side screen intake pipe, oxygen is taken over one end and is connected with the oxygen supply equipment, and the oxygen is taken over the other end and is passed through the intake pipe and turns round and be connected with the one end that intake pipe Y type connects, intake pipe Y type connects in addition both ends respectively with left side screen intake pipe and right side screen intake-tube connection, left side screen intake pipe and right side screen intake pipe run through spacing hole on the intake-exhaust pipe mount respectively and fix.
Furthermore, exhaust system still includes left side screen blast pipe, right side screen blast pipe and blast pipe Y type and connects, the both ends of U type blast pipe are connected with left side screen blast pipe and right side screen blast pipe respectively after all running through spacing hole on the admission and exhaust pipe mount, left side screen blast pipe and right side screen blast pipe all are connected with two ports of blast pipe Y type and connect, another port and the main blast pipe of blast pipe Y type connect.
Furthermore, the facial mount includes two J type stationary blades, J type stationary blade one end passes through the rotatory fixed screwed connection of mount with annular mount, and the other end of J type stationary blade passes through facial elasticity regulator with another relative J type stationary blade and is connected.
Further, facial elasticity adjuster locates the stop collar of two J type stationary blades tip including the cover, the inside of stop collar is equipped with coaxial coupling's adjusting gear, and the tip opposite side of two J type stationary blades is equipped with the rack, and two racks all are connected with gear engagement, adjusting gear is connected with the adjust knob who runs through the stop collar, when rotating adjust knob for gear revolve, and then make two J type stationary blades relative or opposite movement.
Furthermore, face sealing cotton is arranged on the inner wall, close to the lower jaw, of the J-shaped fixing piece, and forehead sealing cotton is arranged on the inner wall of the annular fixing frame.
Furthermore, the tail ends of the left screen air inlet pipe and the right screen air inlet pipe are flush with the lower end of the air inlet and outlet pipe fixing frame.
Furthermore, the flow rate of oxygen connected to the oxygen connecting pipe is 8 × 16ML/min of the weight of the user, and the flow rate of the exhaust fan is 0.8-0.9 times of the flow rate of the oxygen.
A wearing method of a disposable oxygen flushing type positive pressure protective hood comprises the following steps: before wearing, rotating the left and right side fixing frames to rotate the fixing screw, so that the head fixing frame and the face fixing frame are loosened, rotating the adjusting knob to expand the face fixing frame, enabling a wearer to penetrate the head through the face fixing frame and the head fixing frame, fixing the head fixing frame on the top of the head of the wearer, adjusting the angle of the face fixing frame to enable the face fixing frame to be fixed on the lower jaw of the wearer, reversely rotating the left and right side fixing frames to rotate the fixing screw, enabling the head fixing frame and the face fixing frame to be fixed, reversely rotating the face tightness adjuster to enable the face fixing frame to be tightened, and enabling the forehead sealing cotton and the face sealing cotton to be tightly attached to the forehead and the face of the wearer respectively; one end of the oxygen connecting pipe is connected with an oxygen cylinder or a wall oxygen interface, and the flow rate of the connected oxygen is set to be 8 x 16ML/min of the weight of the user; the flow rate of the exhaust fan is adjusted through the fan controller, and the flow rate of the exhaust fan is set to be 0.8-0.9 times of the flow rate of the oxygen in the air inlet system.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a disposable oxygen flushing type positive pressure protective hood which comprises a face screen frame, an air inlet system, an exhaust system and an outer layer covering cloth, wherein a face screen is arranged at the corresponding position of a face, the outer layer covering cloth is arranged outside a fixed frame, the air inlet system comprises an oxygen connecting pipe, one end of the oxygen connecting pipe is used for being connected with oxygen supply equipment, the other end of the oxygen connecting pipe extends to the position above the face screen in the face screen, the exhaust system comprises a U-shaped exhaust pipe and a main exhaust pipe which are arranged in the face screen, a plurality of exhaust holes are formed in the area, close to the face, of the U-shaped exhaust pipe, the end part extending out of the face screen is connected with the main exhaust pipe through an exhaust pipe Y-shaped joint, and the main exhaust pipe is connected with an exhaust device with an air exhaust function.
After the protective hood is worn, exhaled gas is exhausted through the U-shaped exhaust pipe in the face screen, oxygen is transmitted into the face screen through the oxygen supply equipment through the oxygen connecting pipe, repeated inhalation of the exhaled gas is guaranteed, and the hypercapnia symptom of a human body caused by carbon dioxide mixed in the inhaled gas is avoided;
the port of the oxygen connecting pipe is positioned on the upper part of the face screen, and the face screen is continuously flushed, so that the exhaled water vapor is prevented from being condensed on the face screen, particularly eyes, and the water vapor is prevented from influencing the operating visual field; the relatively dry and comfortable environment in the head cover is ensured, the stuffiness feeling after wearing is reduced, and a flowing air curtain is formed in front of the wearer, so that the effect of cooling the face is achieved.
Drawings
FIG. 1 is a front perspective view of a disposable oxygen-flushed positive pressure protective headgear in an embodiment of the present invention;
FIG. 2 is a rear perspective view of a disposable oxygen-flushed positive pressure protective headgear in an embodiment of the present invention;
FIG. 3 is a perspective view of a panel frame, air intake system and exhaust system in an embodiment of the present invention;
FIG. 4 is a partial first perspective view of a panel frame, an air intake system, and an exhaust system in accordance with an embodiment of the present invention;
FIG. 5 is a second partial perspective view of the panel frame, air induction system and exhaust system in accordance with an embodiment of the present invention;
FIG. 6 is a first perspective view of a panel frame according to an embodiment of the present invention;
FIG. 7 is a second perspective view of the panel frame in an embodiment of the present invention;
FIG. 8 is a perspective view of an outer cover in an embodiment of the present invention;
FIG. 9 is a perspective view of a microbial filter in an embodiment of the present invention;
FIG. 10 is a perspective view of a portion of an exhaust system in an embodiment of the present invention;
fig. 11 is a structural view of a facial slack adjuster in an embodiment of the present invention.
Description of the reference numerals:
101. a head mount; 102. a face mount; 103. the fixed frame rotates to fix the screw; 104. a face tightness adjuster; 105. a head lamp fixing frame; 106. the air inlet and outlet pipe is fixed on the fixing frame; 107. a head lamp; 108. frontal sealing cotton; 109. face sealing cotton; 110. a face screen; 111. a face screen drainage baffle; 201. an oxygen adapter tube; 202. turning the head of the air inlet pipe; 203. a Y-shaped joint of the air inlet pipe; 204. a left panel air inlet pipe; 205. a right panel air inlet pipe; 301. a U-shaped exhaust pipe; 302. a left panel exhaust pipe; 305. a main exhaust pipe; 306. an exhaust fan; 307. a fan control line; 308. a fan controller; 309. fixing belts; 310. a microbial filter; 311. filtering with cotton core; 401. covering the head with cloth; 402. covering the face with cloth; 1041. a limiting sleeve; 1042. a rack; 1043. a gear.
Detailed Description
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", "left", "right", and the like in the embodiments indicate terms of orientation, and are used only for simplifying the positional relationship based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must operate according to the specific orientation and the defined operation, method, and configuration, and such terms are not to be construed as limiting the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first specific embodiment is as follows: referring to fig. 1 to 10, the present invention provides a disposable oxygen flushing positive pressure protective hood, including a panel frame, an air intake system, an exhaust system and an outer layer of fabric, where the panel frame includes a fixing frame for fixing and a panel 110, the panel 110 is disposed at a corresponding position of a face, the outer layer of fabric is disposed outside the fixing frame, the air intake system includes an oxygen connection pipe 201, one end of the oxygen connection pipe 201 is used to connect with an oxygen supply device, the other end of the oxygen connection pipe 201 extends into the panel 110, a port of the oxygen connection pipe 201 is located above the panel 110, the exhaust system includes a U-shaped exhaust pipe 301 and a main exhaust pipe 305 disposed in the panel 110, the U-shaped exhaust pipe 301 is provided with a plurality of exhaust holes near a face region, an end of the U-shaped exhaust pipe 301 extending out of the panel 110 is connected with the main exhaust pipe through a Y-shaped joint 305, and the main exhaust pipe 305 is connected with an exhaust device having an air exhaust function.
After the protective hood is worn, exhaled gas is exhausted through the U-shaped exhaust pipe 301 in the face screen 110, oxygen is transmitted into the face screen 110 through the oxygen supply device through the oxygen connecting pipe 201, repeated inhalation of the exhaled gas is guaranteed, and the hypercapnia symptom of a human body caused by carbon dioxide mixed in the inhaled gas is avoided;
the port of the oxygen connecting pipe 201 is positioned on the upper part of the face screen 110, and the face screen 110 is continuously flushed, so that the exhaled water vapor is prevented from being condensed on the face screen 110, particularly eyes, and the operation visual field is prevented from being influenced by the water vapor; the relatively dry and comfortable environment in the head cover is ensured, the stuffy feeling after wearing is reduced, and a flowing air curtain is formed in front of the wearer, so that the effect of cooling the face is achieved.
Preferably, the face screen frame, the air inlet system, the exhaust system and the outer layer covering cloth are all made of disposable materials, and manufacturing cost can be reduced.
The second specific embodiment: referring to fig. 1 to 11, the fixing frame includes a head fixing frame 101, a face fixing frame 102 and an air inlet and outlet pipe fixing frame 106, the head fixing frame 101 includes a semi-annular fixing frame above an annular fixing frame and the annular fixing frame, the opposite side of the semi-annular fixing frame is provided with the face fixing frame 102 with adjustable size, two sides of the face fixing frame 102 are connected with the annular fixing frame through a fixing frame rotating fixing spiral 103, the annular fixing frame is provided with the air inlet and outlet pipe fixing frame 106, the air inlet and outlet pipe fixing frame 106 is used for fixing an air inlet system and an air outlet system, the upper end of the face screen is connected with the annular fixing frame or the air inlet and outlet pipe fixing frame 106, and the head fixing frame 101, the face screen and the face fixing frame 102 are sequentially wrapped by an outer layer of cloth. Other combinations and connections of this embodiment are the same as those of the first embodiment.
Preferably, the facial fixing frame 102 comprises two J-shaped fixing pieces, one end of each J-shaped fixing piece is connected with the annular fixing frame through a fixing frame rotating fixing screw 103, the other end of each J-shaped fixing piece is connected with the other J-shaped fixing piece opposite to the other J-shaped fixing piece through a facial tightness adjuster 104, and the facial tightness adjuster 104 is used for adjusting the distance between the 2J-shaped fixing pieces to further achieve tightness adjustment of the facial fixing frame 102 and the face.
Preferably, the facial tightness adjuster 104 includes a limiting sleeve 1041 sleeved on the end portions of the two J-shaped fixing pieces, an adjusting gear 1043 coaxially connected is arranged inside the limiting sleeve 1041, racks 1042 are arranged on the opposite sides of the end portions of the two J-shaped fixing pieces, the two racks 1042 are engaged with the gear 1043, the adjusting gear 1043 is connected with an adjusting knob penetrating through the limiting sleeve 1041, when the adjusting knob is rotated, the gear 1043 is rotated, the two J-shaped fixing pieces are further moved relatively or oppositely, and tightness adjustment of the facial fixing frame 102 is achieved.
Preferably, the inner wall of the J-shaped fixing piece close to the lower jaw is provided with face sealing cotton 109, the inner wall of the annular fixing frame is provided with forehead sealing cotton 108, the fixing frame is tightly attached to the face, and meanwhile, the comfort level of a wearer can be improved due to soft cotton.
Preferably, a headlight fixing frame 105 is arranged on the outer side of the annular fixing frame or the air inlet and exhaust pipe fixing frame 106 close to the forehead, and a headlight 107 is arranged on the headlight fixing frame 105. The protection face screen can set up the headlight 107 for the operation outward to do benefit to the protection and dress down and carry out the tracheotomy, trachea cannula and operation, do benefit to the light source that the out-of-hospital field provided facility.
The third concrete implementation scheme is as follows: referring to fig. 1 to 10, the air intake system further includes an air intake pipe swivel 202, an air intake pipe Y-shaped joint 203, a left screen air intake pipe 204 and a right screen air intake pipe 205, one end of the oxygen intake pipe 201 is connected to the oxygen supply device, the other end of the oxygen intake pipe 201 is connected to one end of the air intake pipe Y-shaped joint 203 through the air intake pipe swivel 202, the other two ends of the air intake pipe Y-shaped joint 203 are respectively connected to the left screen air intake pipe 204 and the right screen air intake pipe 205, and the left screen air intake pipe 204 and the right screen air intake pipe 205 respectively penetrate through the limiting holes in the air intake and exhaust pipe fixing frame 106 and are fixed. Other combinations and connections of this embodiment are the same as those of the second embodiment.
Preferably, the ends of the left panel air inlet pipe 204 and the right panel air inlet pipe 205 are flush with the lower end of the air inlet and outlet pipe fixing frame 106, so as to prevent the left panel air inlet pipe 204 and the right panel air inlet pipe 205 from damaging the surface.
Preferably, the oxygen supply device is an oxygen cylinder or a wall oxygen interface.
The fourth specific embodiment: as shown in fig. 1 to 10, the exhaust system further includes a left panel exhaust pipe 302, a right panel exhaust pipe and an exhaust pipe Y-shaped joint, two ends of the U-shaped exhaust pipe 301 penetrate through the limiting holes on the exhaust pipe fixing frame 106 and then are connected to the left panel exhaust pipe 302 and the right panel exhaust pipe, the left panel exhaust pipe 302 and the right panel exhaust pipe are connected to two ports of the exhaust pipe Y-shaped joint, and another port of the exhaust pipe Y-shaped joint is connected to the main exhaust pipe 305. Other combinations and connections of this embodiment are the same as those of the third embodiment.
Preferably, the outer edge of the U-shaped exhaust pipe 301 contacts with the panel 110, so as to prevent the U-shaped exhaust pipe 301 from occupying the space inside the panel 110, and reduce the oppressive feeling of the wearer.
Preferably, the exhaust device comprises an exhaust fan 306, a fan controller 308 and a microbial filter 310, the exhaust fan 306 is arranged in the main exhaust pipe 305, the exhaust fan 306 is used for sucking exhaled air in the panel, and the microbial filter 310 is arranged at the tail end of the main exhaust pipe 305. The microbial filter 310 can prevent pollution and cross-infection caused by exhaust gas.
Preferably, the exhaust fan 306 is controlled by a fan controller 308, and the exhaust fan 306 is connected to the fan controller 308 by a fan control line 307. The fan controller 308 is herein prior art.
The air conditioner further comprises a fixing band 309, the fan controller 308 or the fan controller 308 and the main exhaust pipe 305 are arranged on the fixing band 309, and the fixing band 309 is used for being fixed on the chest or waist of a wearer.
Preferably, the flow rate of the oxygen connected to the oxygen connection pipe 201 is: the user weight 8 × 16ml/min, the exhaust fan 306 flow rate is 0.8-0.9 times the oxygen flow rate.
Preferably, the U-shaped exhaust pipe 301 is a metal threaded pipe, the outer diameter of the U-shaped exhaust pipe 301 is 18mm, the inner diameter of the U-shaped exhaust pipe 301 is 17mm, and 10 exhaust holes with the diameter of 8mm are formed in the U-shaped exhaust pipe 301.
Preferably, the microbial filter 310 is a shell structure, one end of the microbial filter 310 is connected with the main exhaust pipe 305, the other end of the microbial filter 310 is provided with a plurality of air holes, and a filter cotton core 311 is arranged inside the microbial filter 310.
Preferably, the outer layer covering cloth comprises a head covering cloth 401 and a face covering cloth 402, the head covering cloth 401 is a non-woven fabric with the thickness of 0.2mm, and the head covering cloth 401 is connected between the upper edge of the face screen and the edge of the head fixing frame 101; the face covering cloth 402 is a non-woven fabric with the thickness of 0.2mm, and the face covering cloth 402 is connected to the outer edge of the face screen and the outer edge of the face fixing frame 102.
Preferably, the face screen is transparent rigid plastic face screen, the inside face screen drainage baffle 111 that is equipped with the slope of face screen, face screen drainage baffle 111 is located U type blast pipe 301's top, and sets up relatively with the nasal part lower extreme for to the gas drainage of exhalation to U type blast pipe 301 department, and with oxygen water conservancy diversion to the nasal part.
The wearing method of the disposable oxygen flushing type positive pressure protective hood comprises the steps of rotating the fixing frames on the left side and the right side to rotate the fixing screws 103 before wearing, loosening the space between the head fixing frame 101 and the face fixing frame 102, and rotating the adjusting knob to expand the face fixing frame 102. The wearer inserts the head through the face mount 102 and the head mount 101, fixes the head mount 101 to the top of the wearer's head, and adjusts the angle of the face mount 102 so as to fix the face mount to the wearer's chin. The left and right fixing frames are rotated reversely to fix the screws 103, so that the head fixing frame 101 and the face fixing frame 102 are fixed, the face tightness adjuster 104 is rotated reversely to tighten the face fixing frame 102, and at the moment, the forehead sealing cotton 108 and the face sealing cotton 109 are respectively clung to the forehead and the face of the wearer. Connect 201 one end of oxygen gas connection pipe and oxygen cylinder or wall oxygen interface to each other, set up to insert the oxygen flow rate and be: the user's weight (kg) 8 × 16ml/min. The exhaust fan 306 flow rate is adjusted by the fan controller 308, with the exhaust fan 306 set at 0.8-0.9 times the intake system oxygen flow rate. After the operation is finished, the left and right fixing frames are rotated to fix the screws 103 and the face tightness adjuster 104, so that the whole device is taken down.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the disclosure.
Claims (10)
1. The utility model provides a disposable oxygen flush type positive pressure protection hood which characterized in that: including face screen frame, air intake system, exhaust system and outer cloth of covering, the face screen frame is including being used for fixed mount and face screen (110), face screen (110) set up the relevant position on face, outer cloth of covering sets up the outside at the mount, air intake system includes that oxygen takes over (201), oxygen is taken over (201) one end and is used for being connected with oxygen supply equipment, and oxygen is taken over (201) the other end and is extended to in face screen (110), the port that oxygen was taken over (201) is located the top of face screen (110), exhaust system is including setting up U type blast pipe (301) and main blast pipe (305) in face screen (110), a plurality of exhaust hole has been seted up near facial region in U type blast pipe (301), the tip that U type blast pipe (301) extend face screen (110) passes through blast pipe Y type articulate with main blast pipe (305), main blast pipe (305) are connected with the exhaust apparatus who has the function of bleeding.
2. The disposable oxygen-flushing positive pressure protective hood of claim 1, wherein: the fixing frame comprises a head fixing frame (101), a face fixing frame (102) and an air inlet and outlet pipe fixing frame (106), the head fixing frame (101) comprises a semi-annular fixing frame above an annular fixing frame and the annular fixing frame, the opposite side of the semi-annular fixing frame is provided with the face fixing frame (102) with the adjustable size, the two sides of the face fixing frame (102) are connected with the annular fixing frame through a fixing frame rotating fixing spiral (103), the air inlet and outlet pipe fixing frame (106) is arranged on the annular fixing frame, the air inlet and outlet pipe fixing frame (106) is used for fixing an air inlet system and an air outlet system, the upper end of a face screen (110) is connected with the annular fixing frame or the air inlet and outlet pipe fixing frame (106), and the head fixing frame (101), the face screen and the face fixing frame (102) are sequentially wrapped by outer layer covering cloth.
3. The disposable oxygen-flushing positive pressure protective hood of claim 2, wherein: air intake system still includes that the intake pipe turns round (202), intake pipe Y type connects (203), left side screen intake pipe (204) and right side screen intake pipe (205), oxygen is taken over (201) one end and is connected with the oxygen supply equipment, and the oxygen is taken over (201) the other end and is passed through intake pipe turn round (202) and be connected with the one end that intake pipe Y type connects (203), the other both ends that intake pipe Y type connects (203) are connected with left side screen intake pipe (204) and right side screen intake pipe (205) respectively, left side screen intake pipe (204) and right side screen intake pipe (205) run through spacing hole on inlet and outlet pipe mount (106) respectively and are fixed.
4. The disposable oxygen-flushing positive pressure protective hood of claim 3, wherein: exhaust system still includes left side screen blast pipe (302), right side screen blast pipe and blast pipe Y type and connects, the both ends of U type blast pipe (301) are all run through into behind the spacing hole on blast pipe mount (106) respectively with left side screen blast pipe (302) and right side screen blast pipe connection, left side screen blast pipe (302) and right side screen blast pipe all are connected with two ports of blast pipe Y type joint, another port and main blast pipe (305) of blast pipe Y type joint are connected.
5. The disposable oxygen-flushing positive pressure protective hood of claim 4, wherein: the face fixing frame (102) comprises two J-shaped fixing pieces, one end of each J-shaped fixing piece is connected with the annular fixing frame through a fixing frame rotating fixing screw (103), and the other end of each J-shaped fixing piece is connected with the other J-shaped fixing piece through a face tightness adjuster (104).
6. The disposable oxygen-flushing positive pressure protective hood of claim 5, wherein: facial elasticity regulator (104) are located stop collar (1041) of two J type stationary blade tip including the cover, the inside of stop collar (1041) is equipped with coaxial coupling's adjusting gear (1043), and the tip opposite side of two J type stationary blades is equipped with rack (1042), and two rack (1042) all are connected with gear (1043) meshing, adjusting gear (1043) are connected with the adjust knob who runs through stop collar (1041), when rotating adjust knob for gear (1043) rotate, and then make two relative or opposite motions of J type stationary blade.
7. The disposable oxygen-flushing positive pressure protective hood of claim 5, wherein: the inner wall of the J-shaped fixing piece, which is close to the lower jaw, is provided with face sealing cotton (109), and the inner wall of the annular fixing frame is provided with forehead sealing cotton (108).
8. The disposable oxygen-flushing positive pressure protective hood of claim 7, wherein: the tail ends of the left screen air inlet pipe (204) and the right screen air inlet pipe (205) are arranged in a flush mode with the lower end of the air inlet and outlet pipe fixing frame (106).
9. The disposable oxygen-flushing positive pressure protective hood of claim 8, wherein: the flow rate of oxygen connected to the oxygen connecting pipe (201) is 8 x 16ML/min of the weight of a user, and the flow rate of the exhaust fan (306) is 0.8-0.9 times of the flow rate of the oxygen.
10. A method of wearing a disposable oxygen-flushed positive pressure protective headgear, comprising the steps of: before wearing, the left and right side fixing frames are rotated to rotate the fixing screws (103) so as to loosen the space between the head fixing frame (101) and the face fixing frame (102), the adjusting knob is rotated to expand the face fixing frame (102), a wearer penetrates the head through the face fixing frame (102) and the head fixing frame (101), the head fixing frame (101) is fixed on the top of the head of the wearer, the angle of the face fixing frame (102) is adjusted so as to be fixed on the lower jaw of the wearer, the left and right side fixing frames are rotated reversely to rotate the fixing screws (103) so as to fix the head fixing frame (101) and the face fixing frame (102), the face tightness adjuster (104) is rotated reversely so as to tighten the face fixing frame (102), and at the moment, the forehead sealing cotton (108) and the face sealing cotton (109) are respectively clung to the forehead and the face of the wearer; one end of an oxygen connecting pipe (201) is connected with an oxygen cylinder or a wall oxygen interface, and the flow rate of the accessed oxygen is set to be 8 x 16ML/min of the weight of the user; the flow rate of the exhaust fan (306) is adjusted by the fan controller (308), and the exhaust fan (306) is set to be 0.8-0.9 times the flow rate of the oxygen in the intake system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211659994.9A CN115970188A (en) | 2022-12-23 | 2022-12-23 | Disposable oxygen flushing type positive pressure protective hood and wearing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211659994.9A CN115970188A (en) | 2022-12-23 | 2022-12-23 | Disposable oxygen flushing type positive pressure protective hood and wearing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115970188A true CN115970188A (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211659994.9A Pending CN115970188A (en) | 2022-12-23 | 2022-12-23 | Disposable oxygen flushing type positive pressure protective hood and wearing method |
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| Country | Link |
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| CN (1) | CN115970188A (en) |
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| CN107456677A (en) * | 2017-09-06 | 2017-12-12 | 佛山市道道电子科技有限公司 | A kind of breathing mask |
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