CN111577624A - Fan suitable for head wraps up portable guard mouth face guard entirely - Google Patents
Fan suitable for head wraps up portable guard mouth face guard entirely Download PDFInfo
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- CN111577624A CN111577624A CN202010423018.8A CN202010423018A CN111577624A CN 111577624 A CN111577624 A CN 111577624A CN 202010423018 A CN202010423018 A CN 202010423018A CN 111577624 A CN111577624 A CN 111577624A
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- China
- Prior art keywords
- fan
- sealing cloth
- ring
- cloth
- filter screen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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- 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
- A62B18/006—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 with pumps for forced ventilation
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Power Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a fan suitable for head wraps up portable protection oral cavity face guard entirely, relates to the application of the special fan of a protection oral cavity face guard, the bottom of box (24) is equipped with the exhaust hole in the fan, clamping ring (14) are pressed on the box is close to air inlet filter screen (19) of bottom in the fan, motor (17) are installed in mounting panel (11) lower part, there are fan flabellum (18) in the motor, fan cover (4) connect the fan inner box in middle part mouth (50), the fan cover is equipped with a plurality of inlet ports (1), power cord (15) are connected motor and power; a supporting mechanism is arranged on the sealing cloth head cover, the lower parts of the two sides of the sealing cloth head cover are respectively provided with a shoulder sleeve (40), and the sealing cloth head cover is provided with a transparent window (33) and an oral filter screen (35); according to the invention, the air inlet filter screen is implanted into the fan, and the air inlet filter screen and the sealing cloth head cover with a barrel-shaped structure are utilized to protect all parts of the head from external pollution.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to application of a fan special for a protective mouth mask, in particular to a fan suitable for a head fully-wrapped portable protective mouth mask.
[ background of the invention ]
It is well known that some infectious diseases are transmitted through air by droplets, and the eyes, mouth and nasal cavity of the human head are important passages into the body, and the infectious source of pathogens is infected by the secretion and droplets emitted from the patient through coughing, sneezing, talking, remaining in the air and being inhaled by the susceptible person; common diseases such as epidemic encephalitis, scarlet fever, pertussis, influenza, measles and the like are spread in this way, SARS in 2002 and a novel coronavirus outbreak 'COVID-19' in 2020 present a great problem for people to go out to protect, and because the spreading force is extremely strong, large-area spreading is caused, a better prevention mode is to wear a mask and goggles, but a lot of people easily cause unsmooth breathing when using the mask and the goggles, and the pressure marks on the nose bridge are obvious after using, which is extremely uncomfortable; the goggles are worn by people on the street or other public places, and the conventional eyes have extremely poor protective effect due to gaps around the conventional eyes; especially, public places in office places, business supermarkets, public transportation vehicles such as airplanes, high-speed rails, trains and automobiles and buildings with relatively closed environments are main places for air transmission; the existing mask is only used for a limited purpose, and the medical protective clothing is partially used, so that the wearer is very uncomfortable due to unsmooth ventilation, and the industrial protective clothing is very inconvenient to wear due to large volume.
[ summary of the invention ]
In order to overcome the defects in the background technology, the invention discloses a fan suitable for a head full-wrapping portable mouth mask.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fan suitable for a head full-wrapping portable protective mouth mask comprises a fan cover, a fan fixing ring, a motor, fan blades, a pressing ring, an air inlet filter screen, a fan inner box, a sealing cloth head cover, a head cover supporting mechanism, shoulder openings A, shoulder openings B, an elastic rubber strip, a transparent window and a mouth filter screen, wherein the bottom of the fan inner box is provided with an exhaust hole, the outer edge of the air inlet filter screen is pressed on a step B which is close to the bottom of the inner wall of the fan inner box, the lower part of the pressing ring is pressed on the upper part of the outer edge of the air inlet filter screen, a plurality of connecting rods are arranged between the upper part of the pressing ring and the fan fixing ring, a projecting ring B of the outer edge of the fan fixing ring is positioned on a step A formed by an upper opening expanding surface and the inner wall of the fan inner box, the upper part of the motor is arranged on the, the upper opening of the fan inner box penetrates through the middle opening arranged at any position except the front surface of the sealing cloth head cover, the inner surface of the fan cover cylinder is connected with the fan inner box, a convex ring C of the fan inner box close to the outer edge of the upper opening and a convex ring A of the outer edge of the lower opening of the fan cover form clamping for the middle opening, a plurality of air inlet holes are formed in the fan cover, one end of a power line is connected with a motor, and the other end of the power line is connected with a power supply or an external power supply arranged in the fan cover; the sealing cloth head cover is of an inverted barrel-shaped structure, the head cover supporting mechanism is arranged on the periphery and the upper portion of the sealing cloth head cover of the barrel-shaped structure respectively, shoulder sleeves are arranged on two sides of the lower portion of the sealing cloth head cover respectively, elastic rubber strips are arranged at the shoulder openings A and B of the two shoulder sleeves and the lower opening of the sealing cloth head cover respectively, and a transparent window and an opening filter screen are arranged on the front upper portion and the front lower portion of the sealing cloth head cover respectively.
The fan is suitable for the portable protective mouth mask with the head fully wrapped, a conical surface is arranged at the upper end of a cylinder body of the fan cover, a power supply line hole A is formed in the middle of the upper end face of the conical surface, a plurality of air inlet holes are uniformly distributed around the power supply line hole A, a surrounding convex ring A is arranged at the outer edge of the lower end of the cylinder body of the fan cover, and threads are arranged at the lower part of the inner surface of the cylinder body of the fan cover; the outer edge of the fan fixing ring is provided with a surrounding convex ring B, the outer ends of the cross rods on the two sides of the mounting plate are fixedly connected with the inner surface of the fan fixing ring, the middle part of the mounting plate is provided with a power supply wire hole B, the mounting plates on the two sides of the power supply wire hole B are respectively provided with a light hole, the pressing rings are arranged on the lower part of the fan fixing ring at intervals, and three or more than three connecting rods are arranged between the upper ring surface of the pressing ring and; the outer wall of the upper opening of the fan inner box is provided with an external thread A, the lower part of the external thread A is provided with a projecting ring C in close proximity, the inner wall of the upper opening of the fan inner box is provided with a diameter expanding surface, a plurality of surrounding exhaust holes A are arranged at the position of the fan inner box close to the bottom plate, and the upper part of the exhaust hole A on the inner surface of the fan inner box is provided with a step B; the outer edge of the air inlet filter screen is pressed on a step B of the inner box of the fan, the lower surface of the compression ring is pressed on the upper part of the outer edge of the air inlet filter screen, a projecting ring B of a fan fixing ring is positioned on a step A formed by a diameter expanding surface of the inner box and an inner wall of the fan, the upper surface of the motor is attached to the lower part of the mounting plate, two fixing screws respectively penetrate through a light hole of the mounting plate and then are connected with screw holes on the upper surface of the motor, one end of a power line is connected with the motor through a power line hole B, the other end of the power line is connected with a power supply or an external power supply arranged in the fan cover, an upper opening of the inner box of the fan is penetrated in a middle opening, the inner surface of a fan cover cylinder is in threaded connection with an external thread A of the inner box of the fan.
The fan suitable for the head is wrapped up in portable guard mouth face guard entirely, the sealed cloth hood includes preceding sealed cloth, back sealed cloth, side sealed cloth, elastic rubber strip, inflation rectangular bag and support bar, preceding sealed cloth, back sealed cloth and the medical grade plastic film cloth of side sealed cloth structure as an organic whole, the square sealed cloth both sides between preceding sealed cloth and back sealed cloth are equipped with the side sealed cloth respectively, form cross sealed cloth by preceding sealed cloth, back sealed cloth and both sides face sealed cloth, upper portion is connected with the support bar through the hot melt respectively around the square sealed cloth of cross sealed cloth is close to, the preceding sealed cloth of cross sealed cloth, back sealed cloth and both sides face sealed cloth of cross sealed cloth bend downwards respectively, the both sides department of being close to of both sides department of both sides sealed cloth forms the tubbiness structure of back-buckling through hot melt and adjacent preceding sealed cloth and back sealed cloth of both sides department hot melt connection respectively, the two ends of the expansion strip bag are respectively positioned at the lower part of the front sealing cloth, the two ends of the expansion strip bag close to the two ends are respectively and fixedly connected with the sealing cloth at the two sides of the front sealing cloth and the sealing cloth at the two sides of the front sealing cloth, then the middle part of the expansion strip bag is fixedly connected with the lower part of the rear sealing cloth after the expansion strip bag is fixedly connected with the two sides of the square sealing cloth along the two sides of the square sealing cloth and the two sides of the rear; the lower parts of the two side sealing cloths are respectively provided with a shoulder sleeve, a surrounding elastic rubber strip is arranged on a shoulder opening A of the shoulder sleeve of one side sealing cloth, a surrounding elastic rubber strip is arranged on a shoulder opening B of the shoulder sleeve of the other side sealing cloth, two ends of the elastic rubber strip arranged on the lower part of the front sealing cloth are respectively connected with the elastic rubber strip of the shoulder opening A and the front middle part of the elastic rubber strip of the shoulder opening B, and two ends of the other elastic rubber strip arranged on the lower part of the rear sealing cloth are respectively connected with the elastic rubber strip of the shoulder opening A and the rear middle part of the elastic rubber strip of the shoulder opening B; the upper part and the lower part of the front sealing cloth are respectively provided with a window mounting opening of a transparent window and a filter screen mounting opening of an opening filter screen; the middle part of the square sealing cloth is provided with a middle port for installing a fan motor.
The fan is suitable for the head to fully wrap the portable protective mouth mask, the hot melting positions of the sealing cloth on the two side surfaces and the front sealing cloth are respectively provided with a widening edge, the two sides of the front sealing cloth are respectively provided with a widening edge, the widening edges of the sealing cloth on the two side surfaces and the outer edge part of the widening edge of the front sealing cloth are connected through hot melting to form a hot-pressing adhesion line, and the hot-pressing adhesion line between the widening edges of the sealing cloth on the two side surfaces and the widening edge of the front sealing cloth forms the filling of an expansion long bag at the corresponding position; the hot melting parts of the sealing cloth on the two side surfaces and the rear sealing cloth are respectively provided with a widening edge, the two sides of the rear sealing cloth are respectively provided with a widening edge, the widening edges of the sealing cloth on the two side surfaces and the outer edge part of the widening edge of the rear sealing cloth are connected through hot melting to form a hot-pressing adhesion line, the hot-pressing adhesion line between the widening edges of the sealing cloth on the two side surfaces and the widening edge of the rear sealing cloth forms an expansion long strip bag at the corresponding part to be filled, an extension strip arranged at the lower end of the rear sealing cloth is bent upwards and then is fixed to the middle part of the expansion long strip bag through the hot-pressing adhesion line, and the upper parts of the sealing cloth on the two side surfaces are connected with the upper parts of the sealing cloth on.
The fan is suitable for a head full-wrapping portable protective mouth mask, one end of the expansion long bag is of a closed structure, an inflation valve nozzle is arranged at the other end of the expansion long bag, the inflation valve nozzle is connected with the plugging insertion rod through a connecting belt, and the inflation valve nozzle is aligned to the inflation valve nozzle through the plugging insertion rod.
The fan that is applicable to head and wraps up portable protection oral cavity face guard entirely, transparent window is any one of transparent organic glass board, glass board or transparent plastic board, the oral area inboard of window installing port is equipped with interior oval ring, the inner wall of interior oval ring is equipped with interior protruding ring A, the oral area that is close to of window installing port is on interior protruding ring A, is pressed at the oral area that is close to of window installing port by the transparent window outer fringe, the outer fringe of outer oval ring is equipped with protrusion ring D, the centre gripping that the oval ring inner wall obtained transparent window in the outer oval ring grafting is fixed.
The fan that is applicable to the portable protection oral mask of head full parcel, be close to on filter screen installing port department is in the step that protruding ring B formed in oral area inner ring inner wall set up, on the filter screen installing port of oral area inner ring was put into to the oral area filter screen, the internal thread of external screw thread B connector internal ring inner wall that the inboard outer wall of oral area outer loop set up forms the centre gripping to oral area filter screen and filter screen installing port department by oral area outer loop and oral area inner ring, is equipped with bulge loop E outside the oral area outer loop.
The fan is suitable for the head to wrap the portable protective mouth mask, and the external power supply connected with the other end of the power line is a mobile power supply.
The fan that is applicable to the portable protection oral mask of head full parcel, the filter screen that admits air from interior to exterior is equipped with superfine fiber cloth layer, active carbon filter cloth layer, static filter membrane layer and medical degrease gauze layer respectively, the outer fringe of the filter screen that admits air is equipped with the stiffened limit that fine rule sewing formed.
The fan suitable for the head to wrap the portable protective mouth mask completely is characterized in that a plurality of exhaust holes B are uniformly distributed on a bottom plate of an inner box of the fan.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the fan suitable for the portable protective mouth mask with the fully-wrapped head, air is input into the sealing cloth hood by the fan, air supply of the head in the sealing cloth hood is obtained, and air viruses entering the sealing cloth hood can be effectively filtered by the air inlet filter screen; when the device is used, the sealing cloth head cover is supported by the head cover supporting mechanism to obtain that the head is not in contact with the sealing cloth head cover, the free rotation of the head is further obtained, when the device is used, the shoulder sleeves at the lower parts of the two sides of the sealing cloth head cover are utilized to enable the shoulders of a user to respectively penetrate into the shoulder openings A and the shoulder openings B to form the positioning of the sealing cloth head cover, the mobile power supply is turned on to enable the motor to supply power, meanwhile, the fan blades rotate, and at the moment, external air enters the sealing cloth head cover through the filtering of the air inlet filtering net by the fan; the fan is arranged on the upper part of the sealing cloth hood, so that high-quality air in a higher space enters the sealing cloth hood for people to breathe, the phenomenon that a flat layer of dirty air at the head enters the sealing cloth hood is avoided, a transparent window can be used for a user to observe road conditions, a filter screen at the mouth part can guide the air to be discharged outwards, and meanwhile, the fan also has the function that the user can transmit external sound or listen to external sound; except the air inlet filter screen and the mouth filter screen, the invention can be used for one time, and other parts can be used for the second time after being sterilized by alcohol or other modes; the invention can be used for people standing in a narrow environmental space, airplane passengers, automobile passengers, family members or children.
[ description of the drawings ]
FIG. 1 is a perspective view of the fan assembly of the present invention;
FIG. 2 is a schematic view of the fan cover structure of the present invention;
FIG. 3 is a schematic structural diagram of an inner fan case according to the present invention;
FIG. 4 is a schematic view of the construction of a sealed fabric head cover according to the present invention;
FIG. 5 is a schematic view of a disassembled structure of the sealed fabric head cover of the present invention;
FIG. 6 is a schematic view of the transparent window assembly of the present invention;
FIG. 7 is a schematic view of the assembly structure of the oral filter screen of the present invention;
in the figure: 1. an air inlet; 2. a power line hole A; 3. a conical surface; 4. a fan cover; 5. a projecting ring A; 6. fixing screws; 7. a cross bar; 8. a power line hole B; 9. a light hole; 10. a projecting ring B; 11. mounting a plate; 12. a fan fixing ring; 13. a connecting rod; 14. pressing a ring; 15. a power line; 16. a screw hole; 17. a motor; 18. fan blades; 19. an air inlet filter screen; 20. a step A; 21. an external thread A; 22. an upper port outer wall; 23. a projecting ring C; 24. an inner fan case; 25. an exhaust hole A; 26. a thread; 27. a step B; 28. a base plate; 29. an exhaust hole B; 30. a supporting strip; 31. expanding the strip bag; 32. front sealing cloth; 33. a transparent window; 34. side sealing cloth; 35. an oral filter screen; 36. hot-pressing the adhesion lines; 37. an outer ring of the mouth; 38. bending the lower part of the steel pipe; 39. an elastic rubber strip; 40. a shoulder sleeve; 41. a shoulder opening A; 42. a shoulder opening B; 43. a mobile power supply; 44. an inflation valve nozzle; 45. a connecting belt; 46. plugging the inserted rod; 47. an extension bar; 48. a back sealing cloth; 49. an opening; 50. a middle port; 51. a window mounting port; 52. a filter screen mounting port; 53. an outer oval ring; 54. a projecting ring D; 55. an inner bulge loop A; 56. an inner oval ring; 57. a projecting ring E; 58. an external thread B; 59. an internal thread; 60. an inner bulge loop B; 61. an inner ring of the mouth part.
[ detailed description ] embodiments
The present invention will be explained in more detail by the following examples, which are intended to disclose all changes and modifications within the scope of the present invention, and the present invention is not limited to the following examples;
the fan suitable for the portable protective mouth mask with the head fully wrapped comprises a fan cover 4, a fan fixing ring 12, a motor 17, fan blades 18, a press ring 14, an air inlet filter screen 19, an inner fan box 24, a sealing cloth head cover, a head cover supporting mechanism, shoulder openings A41, shoulder openings B42, an elastic rubber strip 39, a transparent window 33 and a mouth filter screen 35, wherein the bottom of the inner fan box 24 is provided with exhaust holes, the outer edge of the air inlet filter screen 19 is pressed on a step B27 of the inner wall of the inner fan box 24 close to the bottom, the lower part of the press ring 14 is pressed on the upper part of the outer edge of the air inlet filter screen 19, a plurality of connecting rods 13 are arranged between the upper part of the press ring 14 and the fan fixing ring 12, a projecting ring B10 of the outer edge of the fan fixing ring 12 is positioned on a step A20 formed by an upper opening expanding surface and the inner wall of the inner fan box 24, the upper part of the motor 17 is arranged, the outer end of a cross rod 7 arranged at the outer edge of an installation plate 11 is connected with the inner wall of a fan fixing ring 12, the upper opening of an inner fan box 24 penetrates through a middle opening 50 arranged at any position except the front surface of a sealing cloth cover, the inner surface of a cylinder body of a fan cover 4 is connected with the inner fan box 24, a convex ring C23 close to the outer edge of the upper opening of the inner fan box 24 and a convex ring A5 at the outer edge of the lower opening of the fan cover 4 form clamping for the middle opening 50, a plurality of air inlet holes 1 are arranged on the fan cover 4, one end of a power wire 15 is connected with a motor 17, and the other end of the power wire 15 is; the sealing cloth head cover is of an inverted barrel-shaped structure, head cover supporting mechanisms are respectively arranged on the periphery and the upper part of the sealing cloth head cover of the barrel-shaped structure, shoulder sleeves 40 are respectively arranged on two sides of the lower part of the sealing cloth head cover, elastic rubber strips 39 are respectively arranged at shoulder openings A41 and B42 of the two shoulder sleeves 40 and the lower opening of the sealing cloth head cover, and a transparent window 33 and an opening filter screen 35 are respectively arranged on the front upper part and the front lower part of the sealing cloth head cover; the air inlet filter screen 35 is provided with a superfine fiber cloth layer, an activated carbon filter cloth layer, an electrostatic filter film layer and a medical degreasing gauze layer from inside to outside respectively, and the outer edge of the air inlet filter screen 35 is provided with a hard edge formed by fine line sewing.
With reference to fig. 1, 2, 3 or 4, a conical surface 3 is arranged at the upper end of a cylinder body of the fan cover 4, a power supply wire hole a2 is arranged in the middle of the upper end surface of the conical surface 3, a plurality of air inlet holes 1 are uniformly distributed around the power supply wire hole a2, a surrounding convex ring a5 is arranged at the outer edge of the lower end of the cylinder body of the fan cover 4, and threads 26 are arranged at the lower part of the inner surface of the cylinder body of the fan cover 4; the outer edge of the fan fixing ring 12 is provided with a surrounding convex ring B10, the outer ends of the cross rods 7 at two sides of the mounting plate 11 are fixedly connected with the inner surface of the fan fixing ring 12, the middle part of the mounting plate 11 is provided with a power supply wire hole B8, the mounting plates 11 at two sides of the power supply wire hole B8 are respectively provided with an unthreaded hole 9, the press rings 14 are arranged at the lower part of the fan fixing ring 12 at intervals, and three or more than three connecting rods 13 are arranged between the ring surface at the upper part of the press ring 14 and the; the outer wall 22 of the upper opening of the inner fan box 24 is provided with an external thread A21, the lower close place of the external thread A21 is provided with a projecting ring C23, the inner wall of the upper opening of the inner fan box 24 is provided with a diameter expanding surface, the inner fan box 24 is provided with a plurality of surrounding exhaust holes A25 close to the bottom plate 28, in order to increase the air intake amount, a plurality of exhaust holes B29 can be uniformly distributed on the bottom plate 28 of the inner fan box 24, the aperture of the exhaust hole B29 on the bottom plate 28 is preferably not more than 2MM, so as to prevent the head discomfort caused by the large air volume, and the upper part of the exhaust hole A25 on the inner surface of the inner; the outer edge of the air inlet filter screen 19 is pressed on a step B27 of the fan inner box 24, the lower part surface of the press ring 14 is pressed on the upper part of the outer edge of the air inlet filter screen 19, the bulge loop B10 of the fan fixing ring 12 is positioned on a step A20 formed by the expanding surface and the inner wall of the fan inner box 24, the upper part surface of the motor 17 is attached on the lower part of the mounting plate 11, two fixing screws 6 respectively pass through the light holes 9 of the mounting plate 11 and then are connected with screw holes 16 on the upper part surface of the motor 17 close to two sides, one end of a power cord 15 is connected with the motor 17 through a power cord hole B8, the other end of the power cord 15 is connected with a power supply or an external power supply arranged in the fan cover 4, the upper opening of the fan inner box 24 passes through the middle opening 50, the inner surface of the fan cover barrel is connected with external threads A of the fan inner box, the bulge loop C23 of the fan inner box 24 and the bulge, in consideration of the head load problem, the mobile power supply 43 is preferably used, that is, the external power supply connected to the other end of the power line 15 is the mobile power supply 43 "the mobile phone charger meeting the national standard GB/T35590-2017".
Combine figures 4, 5 and 1, the sealed cloth head cover includes preceding sealed cloth 32, back sealed cloth 48, side sealed cloth 34, elastic rubber strip 39, inflation rectangular bag 31 and support bar 30, preceding sealed cloth 32, back sealed cloth 48 and the medical grade plastic film cloth of side sealed cloth 34 structure as an organic whole, square sealed cloth both sides between preceding sealed cloth 32 and back sealed cloth 48 are equipped with side sealed cloth 34 respectively, form cross sealed cloth by preceding sealed cloth 32, back sealed cloth 48 and both sides sealed cloth 34, upper portion is connected with support bar 30 respectively through the hot melt around the square sealed cloth of cross sealed cloth is close to, preceding sealed cloth 32 of cross sealed cloth, back sealed cloth 48 and sealed cloth 34 are bent downwards respectively for both sides face, the two sides sealed cloth 34 be close to two sides department respectively through hot melt and adjacent preceding sealed cloth 32 and back sealed cloth 48 be close to both sides department hot melt and connect the tubbiness structure that forms the back-off, the two ends of the expansion long bag 31 are respectively positioned at the lower part of the front sealing cloth 32; one end of the expansion strip bag 31 is of a closed structure, the other end of the expansion strip bag 31 is provided with an inflation valve nozzle 44, the inflation valve nozzle 44 is connected with a plugging inserted rod 46 through a connecting belt 45, the plugging inserted rod 46 is used for aligning the inflation valve nozzle 44, two ends, close to the expansion strip bag 31, of the expansion strip bag 31 are respectively and fixedly connected with the two sides of the front sealing cloth 32 and the sealing cloth 34 on the two side surfaces, then the expansion strip bag 31 is fixedly connected with the two sides of the square sealing cloth along the two sides of the square sealing cloth and the two sides of the rear sealing cloth 48, and the middle part of the expansion strip bag 31 is fixedly connected with the lower part of the; the lower parts of the two side sealing cloths 34 are respectively provided with a shoulder sleeve 40, the shoulder opening A41 of the shoulder sleeve 40 of one side sealing cloth 34 is provided with a surrounding elastic rubber strip 39, the shoulder opening B42 of the shoulder sleeve 40 of the other side sealing cloth 34 is provided with a surrounding elastic rubber strip 39, two ends of the elastic rubber strip 39 arranged at the lower part of the front sealing cloth 32 are respectively connected with the elastic rubber strip 39 at the shoulder opening A41 and the front middle part of the elastic rubber strip 39 at the shoulder opening B42, and two ends of the other elastic rubber strip 39 arranged at the lower part of the rear sealing cloth 48 are respectively connected with the elastic rubber strip 39 at the shoulder opening A41 and the rear middle part of the elastic rubber strip 39 at the shoulder opening B42; the upper part and the lower part of the front sealing cloth 32 are respectively provided with a window mounting port 51 of the transparent window 33 and a filter screen mounting port 52 of the mouth filter screen 35; the middle part of the square sealing cloth is provided with a middle port 50 for installing the fan motor 17.
Furthermore, widening edges are respectively arranged at the hot melting positions of the sealing cloth 34 on the two side surfaces and the front sealing cloth 32, the widening edges are respectively arranged on the two sides of the front sealing cloth 32, the widening edges of the sealing cloth 34 on the two side surfaces and the outer edge part of the widening edge of the front sealing cloth 32 are connected through hot melting to form hot-pressing adhesion lines 36, and the hot-pressing adhesion lines 36 between the widening edges of the sealing cloth 34 on the two side surfaces and the widening edge of the front sealing cloth 32 form the filling of the expanded long bag 31 at the corresponding position; the hot melting positions of the sealing cloth 34 on the two side surfaces and the rear sealing cloth 48 are respectively provided with a widening edge, two sides of the rear sealing cloth 48 are respectively provided with a widening edge, the widening edges of the sealing cloth 34 on the two side surfaces and the outer edge part of the widening edge of the rear sealing cloth 48 are connected through hot melting to form a hot-pressing adhesion line 36, the hot-pressing adhesion line 36 between the widening edges of the sealing cloth 34 on the two side surfaces and the widening edge of the rear sealing cloth 48 forms the filling of the expanded long strip bag 31 at the corresponding position, an extension strip 47 arranged at the lower end of the rear sealing cloth 48 is bent upwards and then forms the wrapping fixation of the middle part of the expanded long strip bag 31 through the hot-pressing adhesion line 36, and the upper parts of the sealing cloth 34 on the two side surfaces are connected through hot melting with the upper parts of the sealing cloth.
With reference to fig. 4, 5 or 6, the transparent window 33 is made of any one of a transparent organic glass plate, a transparent glass plate or a transparent plastic plate, an inner oval ring 56 is arranged on the inner side of the mouth of the window mounting opening 51, an inner raised ring a55 is arranged on the inner wall of the inner oval ring 56, the mouth of the window mounting opening close to the window mounting opening is positioned on the inner raised ring a55, the outer edge of the transparent window 33 is pressed on the mouth of the window mounting opening 51 close to the window mounting opening, a raised ring D54 is arranged on the outer edge of the outer oval ring 53, and the outer oval ring 53 is inserted into the inner oval ring 56 to clamp and fix the transparent.
With reference to fig. 4, 5 or 7, the position near the filter screen mounting opening 52 is located on a step formed by an inner raised ring B60 arranged on the inner wall of the mouth part inner ring 61, the mouth part filter screen 35 is placed on the filter screen mounting opening 52 of the mouth part inner ring, an external thread B58 arranged on the inner side outer wall of the mouth part outer ring 37 is connected with an internal thread 59 on the inner wall of the mouth part inner ring 61, the mouth part outer ring 37 and the mouth part inner ring 61 form clamping on the positions of the mouth part filter screen 35 and the filter screen mounting opening 52, and a raised ring E57 is arranged on the outer side of the.
The invention relates to a fan which is suitable for a head full-wrapping portable mouth guard, and is combined with the attached figures 1 to 7; the sealing cloth hood of the invention preferably uses medical grade transparent plastic cloth with the thickness of about 0.5MM or waterproof tent cloth; the expansion long bag 31 is a plastic bag, and an inflation valve nozzle 44 arranged at one end of the expansion long bag 31 is an inflation valve nozzle commonly used on a swim ring; the elastic rubber strip 39 is an elastic band with a built-in rubber band with the diameter close to about one millimeter;
the manufacturing process of the invention comprises the following steps:
the sealing cloth head cover is pressed and cut into the shape of the lower part shown in the figure 5 by using transparent plastic cloth or waterproof tent cloth, then two flat plastic supporting strips 30 are bonded on the square sealing cloth between the front sealing cloth 32 and the rear sealing cloth 48 and the sealing cloth 34 at the two side faces through hot melting, the upper parts of the sealing cloth 34 at the two side faces are respectively connected through hot melting of two sides of strip-shaped plastic, and holes in the two strip-shaped plastic form the front-to-back penetration of the expanded long strip-shaped bag 31; then, the two sides of the front sealing cloth 32 are connected with the front edge parts of the sealing cloths 34 on the two side faces in a hot melting way, the two sides of the front sealing cloth 32 and the front edge parts of the sealing cloths 34 on the two side faces are left with enough width during the hot melting connection, then the two sides of the front sealing cloth 32 and the reserved edge parts of the sealing cloths 34 on the two side faces are connected in a hot melting way, the interval formed between the reserved edges on the two sides of the front sealing cloth 32 and the reserved edges on the front parts of the sealing cloths 34 on the two side faces is an accommodating space for the expansion long strip bag 31, and the reserved edge; two sides of the rear sealing cloth 48 are connected with the rear parts of the sealing cloths 34 on the two side faces in a hot melting way, the two sides of the rear sealing cloth 48 and the rear parts of the sealing cloths 34 on the two side faces are wide enough during the hot melting connection, then the two sides of the rear sealing cloth 48 and the reserved edges of the sealing cloths 34 on the two side faces are connected in a hot melting way, and a space formed between the reserved edges on the two sides of the rear sealing cloth 48 and the reserved edges on the rear parts of the sealing cloths 34 on the two side faces is an accommodating space for the expansion long strip bag 31; the lower end of the rear sealing cloth 48 is bent upwards through the extending strip 47, and then a channel formed by hot melting and connecting the lower end of the rear sealing cloth 48 is a penetrating space of the expansion strip bag 31, and the expansion strip bag 31 is filled into the penetrating space; the stretched elastic rubber strip 39 is connected with the unfolded and laid shoulder sleeve 40 through sewing, the elastic rubber strip 39 at the lower ends of the front sealing cloth 32 and the rear sealing cloth 48 is connected in the same way, but the elastic rubber strip 39 at the lower ends of the front sealing cloth 32 and the rear sealing cloth 48 is required to be connected with the elastic rubber strip 39 of the shoulder sleeve 40; fixing a motor 17 on the lower surface of an installation plate 11 by using a fixing screw 6, placing an air inlet filter screen 19 on a step B27 of an inner fan box 24, pressing the upper surface outer edge of the air inlet filter screen 19 by using a pressing ring 14, just pressing the lower surface of a projecting ring B10 of a fan fixing ring 12 on a step A20 of an upper opening of the inner fan box 24, placing the inner fan box 24 inside a sealing cloth cover, inserting an upper opening outer wall 22 of the inner fan box 24 into a middle opening 50, inserting a connecting head of a power cord 15 from a power cord hole A2 of a fan cover 4, connecting the connecting head with a connecting hole of the motor 17 corresponding to the power cord hole B8, connecting the fan cover 4 with a thread of an external thread A21 of the upper opening outer wall 22 of the inner fan box 24, and clamping the projecting ring A5 and the projecting ring C23 at the position close to the middle opening 50 of; then, the transparent window 33 is installed, namely, the transparent window 33 is placed on an inner convex ring A55 of the inner oval ring 56, the outer oval ring 53 is inserted into the inner oval ring 56, the inner wall of the inner oval ring 56 is in interference fit with the outer wall of the outer oval ring 53, and then the convex ring D54 of the outer oval ring 53 and the end face of the inner oval ring 56 form clamping for the front sealing cloth 32 adjacent to the window installation opening 51;
next, the mouth filter screen 35 is installed, the mouth filter screen 35 is placed on the inner convex ring B60 in the mouth inner ring 61, the mouth inner ring 61 is placed inside the filter screen installation opening 52, the outer thread B58 of the mouth outer ring 37 is used for connecting with the inner thread 59 of the mouth inner ring 61, and the convex ring E57 of the mouth outer ring 37 and the end face of the mouth inner ring 61 form a clamping effect on the front sealing cloth 32 at the filter screen installation opening 52; and then put into a sealed bag.
When in use, the inflation valve mouth 44 of the inflation strip bag 31 is blown up to swell the inflation strip bag 31, then the inflation valve mouth 44 is sealed by the plugging inserted bar 46, at this time, the four corners of the sealing cloth head cover are supported by the inflation strip bag 31, one side of the lower part of the two sides of the front sealing cloth 32 is one end of the inflation strip bag 31, the other side is the other end of the inflation strip bag 31, the rear upper part is respectively bent through the rear upper part, and the lower part is bent through the rear lower part 38, namely, the inflation strip bag 31 can pass through the transition of the adjacent filling space by bending by utilizing the flexibility of the inflation strip bag 31; the head is drilled into the lower opening of the sealing cloth head cover, two hands extend into the shoulder opening A41 and the shoulder opening B42, at the moment, the head is positioned in the middle of the sealing cloth head cover, the shoulder opening A41 and the elastic rubber strip 39 of the shoulder opening B42 enable the shoulders to be sealed, the front chest and the back are sealed through the elastic rubber strip 39 at the lower ends of the front sealing cloth 32 and the back sealing cloth 48, the motor 17 starts the fan blades 18 to rotate after the power supply is turned on, air continuously enters the fan cover 4, enters the sealing cloth head cover through the air exhaust hole A25 and the air exhaust hole B29 of the fan inner box 24 after being filtered by the air inlet filter screen 19, and the air needs to be explained that the air exhaust hole A25 of the bottom plate 28 of the fan inner box 24 is not suitable for children to use so as to avoid discomfort caused by blowing air to the head for breathing of people, and then is exhausted into the.
The present invention is not described in detail in the prior art.
Claims (10)
1. The utility model provides a fan suitable for portable protection mouthful face guard of head full parcel, includes fan lid (4), the solid fixed ring of fan (12), motor (17), fan flabellum (18), clamping ring (14), admits air filter screen (19), box (24) in the fan, sealed cloth hood, hood supporting mechanism, shoulder mouth A (41), shoulder mouth B (42), elastic rubber strip (39), transparent window (33) and oral area filter screen (35), characterized by: the bottom of the fan inner box (24) is provided with an exhaust hole, the outer edge of the air inlet filter screen (19) is pressed on a step B (27) of the inner wall of the fan inner box (24) close to the bottom, the lower part of the press ring (14) is pressed on the upper part of the outer edge of the air inlet filter screen (19), a plurality of connecting rods (13) are arranged between the upper part of the press ring (14) and the fan fixing ring (12), a projecting ring B (10) of the outer edge surface of the fan fixing ring (12) is positioned on a step A (20) formed by the upper opening expanding surface and the inner wall of the fan inner box (24), the upper part of the motor (17) is arranged on the lower part of the mounting plate (11), a fan blade (18) is arranged on a power output shaft at the lower end of the motor (17), the outer end of a cross rod (7) arranged on the outer edge of the mounting plate (11) is connected with the inner wall of the fan fixing ring (, the inner surface of the cylinder of the fan cover (4) is connected with an inner fan box (24), a convex ring C (23) close to the outer edge of an upper opening of the inner fan box (24) and a convex ring A (5) at the outer edge of a lower opening of the fan cover (4) form clamping for a middle opening (50), a plurality of air inlets (1) are formed in the fan cover (4), one end of a power line (15) is connected with a motor (17), and the other end of the power line (15) is connected with a power supply or an external power supply arranged in the fan cover (4); the sealing cloth hood is the bucket column structure of back-off, is equipped with hood supporting mechanism around the sealing cloth hood of bucket column structure and upper portion respectively, the lower part both sides of sealing cloth hood are equipped with shoulder cover (40) respectively, and the shoulder A (41), shoulder B (42) of two shoulder covers (40) and the end opening punishment of sealing cloth hood are equipped with elastic rubber strip (39) respectively, are equipped with transparent window (33) and oral area filter screen (35) respectively in the preceding upper portion and the preceding lower part of sealing cloth hood.
2. The fan adapted for use with a head wrap portable respirator as claimed in claim 1, wherein: the upper end of a cylinder of the fan cover (4) is provided with a conical surface (3), the middle part of the upper end surface of the conical surface (3) is provided with a power supply line hole A (2), a plurality of air inlet holes (1) are uniformly distributed around the power supply line hole A (2), the outer edge of the lower end of the cylinder of the fan cover (4) is provided with a surrounding convex ring A (5), and the lower part of the inner surface of the cylinder of the fan cover (4) is provided with a thread (26); the outer edge of the fan fixing ring (12) is provided with a surrounding convex ring B (10), the outer ends of the cross rods (7) at the two sides of the mounting plate (11) are fixedly connected with the inner surface of the fan fixing ring (12), the middle part of the mounting plate (11) is provided with a power supply wire hole B (8), the mounting plates (11) at the two sides of the power supply wire hole B (8) are respectively provided with a light hole (9), the press rings (14) are arranged at the lower part of the fan fixing ring (12) at intervals, and three or more than three connecting rods (13) are arranged between the upper ring surface of the press ring (14) and the lower ring; an external thread A (21) is arranged on the outer wall (22) of the upper opening of the fan inner box (24), a projecting ring C (23) is arranged at the position close to the lower part of the external thread A (21), the inner wall of the upper opening of the fan inner box (24) is provided with a diameter expanding surface, a plurality of surrounding exhaust holes A (25) are arranged at the position, close to the bottom plate (28), of the fan inner box (24), and a step B (27) is arranged at the upper part of the exhaust hole A (25) on the inner surface of the fan inner box (24); the outer edge of the air inlet filter screen (19) is pressed on a step B (27) of a fan inner box (24), the lower surface of a press ring (14) is pressed on the upper part of the outer edge of the air inlet filter screen (19), a bulge ring B (10) of a fan fixing ring (12) is positioned on a step A (20) formed by the diameter expanding surface and the inner wall of the fan inner box (24), the upper surface of a motor (17) is attached on the lower part of a mounting plate (11), two fixing screws (6) are respectively connected with screw holes (16) on the upper surface of the motor (17) close to two sides after penetrating through light holes (9) of the mounting plate (11), one end of a power line (15) is connected with the motor (17) through a power line hole B (8), the other end of the power line (15) is connected with a power supply or an external power supply arranged in a fan cover (4), the upper opening of the fan inner box (24) is penetrated in a middle opening (50), the, a convex ring C (23) of the fan inner box (24) and a convex ring A (5) of the fan cover (4) form clamping of the middle opening (50), and one end, close to the power line (15), of the power line is located in a power line hole A (2) of the fan cover (4).
3. The fan adapted for use with a head wrap portable respirator as claimed in claim 1, wherein: sealing cloth hood is including preceding sealing cloth (32), back sealing cloth (48), side sealing cloth (34), elastic rubber strip (39), inflation rectangular bag (31) and support bar (30), preceding sealing cloth (32), back sealing cloth (48) and side sealing cloth (34) medical grade plastic film cloth of structure as an organic whole, square sealing cloth both sides between preceding sealing cloth (32) and back sealing cloth (48) are equipped with side sealing cloth (34) respectively, by preceding sealing cloth (32), back sealing cloth (48) and both sides face sealing cloth (34) form cross sealing cloth, upper portion face has support bar (30) through hot melt connection respectively around the square sealing cloth of cross sealing cloth is close to, preceding sealing cloth (32) of cross sealing cloth, back sealing cloth (48) and both sides face sealing cloth (34) bend down respectively the both sides face, the both sides department that is close to sealing cloth (34) is through hot melt and adjacent preceding sealing cloth (32) and back sealing cloth (48) respectively The parts close to the two sides are in hot melting connection to form an inverted barrel-shaped structure, the two ends of the expansion strip bag (31) are respectively positioned at the lower part of the front sealing cloth (32), the parts close to the two ends of the expansion strip bag (31) are respectively and fixedly connected with the two sides of the front sealing cloth (32) and the sealing cloth (34) at the two sides of the two sides, then the expansion strip bag (31) is fixedly connected with the two sides of the square sealing cloth along the two sides of the square sealing cloth and the two sides of the rear sealing cloth (48), and the middle part of the expansion strip bag (31) is fixedly connected with the lower part of the rear sealing cloth (; the lower parts of the two side sealing cloths (34) are respectively provided with a shoulder sleeve (40), a shoulder opening A (41) of the shoulder sleeve (40) of one side sealing cloth (34) is provided with a surrounding elastic rubber strip (39), a shoulder opening B (42) of the shoulder sleeve (40) of the other side sealing cloth (34) is provided with a surrounding elastic rubber strip (39), two ends of the elastic rubber strip (39) arranged at the lower part of the front sealing cloth (32) are respectively connected with the elastic rubber strip (39) of the shoulder opening A (41) and the front middle part of the elastic rubber strip (39) of the shoulder opening B (42), and two ends of the other elastic rubber strip (39) arranged at the lower part of the rear sealing cloth (48) are respectively connected with the elastic rubber strip (39) of the shoulder opening A (41) and the rear middle part of the elastic rubber strip (39) of the shoulder opening B (42); the upper part and the lower part of the front sealing cloth (32) are respectively provided with a window mounting opening (51) of a transparent window (33) and a filter screen mounting opening (52) of an opening filter screen (35); the middle part of the square sealing cloth is provided with a middle opening (50) for installing a fan motor (17).
4. The fan adapted for use with a full head wrap portable respirator of claim 3, further comprising: widening edges are respectively arranged at the hot melting positions of the sealing cloth (34) at the two side surfaces and the front sealing cloth (32), the two sides of the front sealing cloth (32) are respectively provided with the widening edges, the widening edges of the sealing cloth (34) at the two side surfaces and the outer edge part of the widening edge of the front sealing cloth (32) are connected through hot melting to form hot-pressing adhesion lines (36), and the hot-pressing adhesion lines (36) between the widening edges of the sealing cloth (34) at the two side surfaces and the widening edges of the front sealing cloth (32) form the filling of the expanded long bag (31) at the corresponding position; widening edges are respectively arranged at the hot melting positions of the sealing cloth (34) at the two side surfaces and the rear sealing cloth (48), the two sides of the rear sealing cloth (48) are respectively provided with the widening edges, the widening edges of the sealing cloth (34) at the two side surfaces and the outer edge part of the widening edge of the rear sealing cloth (48) are connected through hot melting to form hot-pressing adhesion lines (36), and the hot-pressing adhesion lines (36) between the widening edges of the sealing cloth (34) at the two side surfaces and the widening edges of the rear sealing cloth (48) form the filling of the expanded long bag (31) at the corresponding position, an extension strip (47) arranged at the lower end of the rear sealing cloth (48) is bent upwards and then forms a wrapping fixation to the middle part of the expansion long strip bag (31) through a hot-pressing adhesion strip (36), wherein, the upper parts of the two side sealing cloths (34) are connected with the upper parts of the two side sealing cloths (34) through adding strip-shaped plastics in a hot melting way so as to wrap the corresponding expanded strip-shaped bag (31).
5. The fan adapted for use with a full head wrap portable respirator of claim 3, further comprising: one end of the expansion long bag (31) is of a closed structure, an inflation valve nozzle (44) is arranged at the other end of the expansion long bag (31), the inflation valve nozzle (44) is connected with a plugging inserting rod (46) through a connecting belt (45), and the inflation valve nozzle (44) is connected through the plugging inserting rod (46).
6. The fan adapted for use with a full head wrap portable respirator of claim 3, further comprising: transparent window (33) is any one of transparent organic glass board, glass board or transparent plastic board, and the oral area inboard of window installing port (51) is equipped with interior oval-shaped ring (56), and the inner wall of interior oval-shaped ring (56) is equipped with interior protruding ring A (55), and the oral area that is close to of window installing port is on interior protruding ring A (55), presses the oral area that is close to of window installing port (51) by transparent window (33) outer fringe, and the outer fringe of outer oval-shaped ring (53) is equipped with protruding ring D (54), the centre gripping that interior oval-shaped ring (56) inner wall was acquireed transparent window (33) is fixed in outer oval-shaped ring (53) grafting.
7. The fan adapted for use with a full head wrap portable respirator of claim 3, further comprising: on being close to filter screen installing port (52) department in oral area inner ring (61) inner wall set up the step that interior protruding ring B (60) formed, oral area filter screen (35) are put into on oral area inner ring's filter screen installing port (52), external screw thread B (58) that oral area outer ring (37) inboard outer wall set up connect internal thread (59) of oral area inner ring (61) inner wall, form the centre gripping of oral area filter screen (35) and filter screen installing port (52) department by oral area outer ring (37) and oral area inner ring (61), be equipped with bulge loop E (57) in oral area outer ring (37) outside.
8. The fan adapted for use with a head wrap portable respirator as claimed in claim 1, wherein: the external power supply connected with the other end of the power line (15) is a mobile power supply (43).
9. The fan adapted for use with a head wrap portable respirator as claimed in claim 1, wherein: the air inlet filter screen (35) is provided with a superfine fiber cloth layer, an activated carbon filter cloth layer, an electrostatic filter film layer and a medical degreasing gauze layer from inside to outside respectively, and the outer edge of the air inlet filter screen (35) is provided with a hard edge formed by fine line sewing.
10. The fan adapted for use with a head wrap portable mouth mask as claimed in claim 1 or claim 2, wherein: a plurality of exhaust holes B (29) are uniformly distributed on a bottom plate (28) of the fan inner box (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010423018.8A CN111577624A (en) | 2020-05-19 | 2020-05-19 | Fan suitable for head wraps up portable guard mouth face guard entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010423018.8A CN111577624A (en) | 2020-05-19 | 2020-05-19 | Fan suitable for head wraps up portable guard mouth face guard entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111577624A true CN111577624A (en) | 2020-08-25 |
Family
ID=72123168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010423018.8A Withdrawn CN111577624A (en) | 2020-05-19 | 2020-05-19 | Fan suitable for head wraps up portable guard mouth face guard entirely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111577624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268002A (en) * | 2020-10-23 | 2021-01-26 | 李云仙 | Multistage segmental mining centrifugal pump |
-
2020
- 2020-05-19 CN CN202010423018.8A patent/CN111577624A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268002A (en) * | 2020-10-23 | 2021-01-26 | 李云仙 | Multistage segmental mining centrifugal pump |
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Application publication date: 20200825 |