CN108095228B - Medical gas replacement formula gauze mask - Google Patents
Medical gas replacement formula gauze mask Download PDFInfo
- Publication number
- CN108095228B CN108095228B CN201810152557.5A CN201810152557A CN108095228B CN 108095228 B CN108095228 B CN 108095228B CN 201810152557 A CN201810152557 A CN 201810152557A CN 108095228 B CN108095228 B CN 108095228B
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- 238000002347 injection Methods 0.000 claims abstract description 99
- 239000007924 injection Substances 0.000 claims abstract description 99
- 238000004891 communication Methods 0.000 claims abstract description 11
- 210000001503 joint Anatomy 0.000 claims abstract description 10
- 238000000605 extraction Methods 0.000 claims abstract 2
- 230000001105 regulatory effect Effects 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 8
- 230000000149 penetrating effect Effects 0.000 description 5
- 210000003128 head Anatomy 0.000 description 4
- 210000000214 mouth Anatomy 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000012938 design process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/14—Air permeable, i.e. capable of being penetrated by gases
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2400/00—Functions or special features of garments
- A41D2400/10—Heat retention or warming
- A41D2400/12—Heat retention or warming using temperature-controlled means
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2600/00—Uses of garments specially adapted for specific purposes
- A41D2600/20—Uses of garments specially adapted for specific purposes for working activities
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to a medical gas replacement type mask, which introduces an electric control pressure difference driving type air convection structure, an exhaust cavity is constructed between an outer mask body (7) and an inner mask body (8) designed aiming at a mask body (1), the temperature and humidity of the inner side of the inner mask body (8) are detected by a temperature and humidity sensor (13), intelligent speed regulation control is carried out aiming at a micro fan (3) through a specifically designed fan speed regulation circuit (14), and the humid and hot air of the inner side of the inner mask body (8) is rapidly taken away by utilizing the principle of air pressure difference based on an air duct (4) which is in butt joint communication with the air inlet end of the micro fan (3) and the exhaust cavity and is combined with each air extraction through hole (9) on the inner mask body (8); the pressure difference between the inner side of the inner cover body (8) and the outer side of the gauze layer cover body (6) is presented, and the injection of external air to the inner side of the inner cover body (8) is realized through each group of external injection through hole groups on the outer cover body (7) and the inner cover body (8), so that the replacement of air is realized.
Description
Technical Field
The invention relates to a medical gas replacement type mask, and belongs to the technical field of medical instruments.
Background
The mask is a sanitary article, generally refers to a device which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze or paper and the like.
The mask has a certain filtering function on air entering the lung, and has a very good effect when being worn in respiratory infectious diseases and working in environments polluted by dust and the like. Gauze mask can divide into air filtration formula gauze mask and air supply formula gauze mask, along with the development of science and technology level, and the aggravation that urban construction process pollutes, the design of gauze mask also constantly pushes away the layer and goes out newly, from the most ordinary gauze mask, to the very high chip formula gauze mask of science and technology content, all be exerting respective function and application, but along with the application of gauze mask, still have a problem, always be the problem in the gauze mask use, the moist hot gas that respiratory process brought promptly, can't in time obtain the replacement, consequently, no matter the fog-out on wearing glasses, still the oral cavity, moist hot air of gathering around the nasal part, uncomfortable use impression has all been presented.
Medical staff usually wear the mask for a long time, and thus, there is a problem of air discomfort.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a medical gas replacement type mask which is based on the existing mask structure, introduces an electric control pressure difference driving type air convection structure, provides active air convection acceleration application and can present more comfortable use feeling.
The invention adopts the following technical scheme for solving the technical problems: the invention designs a medical gas replacement type mask, which comprises a mask body and two binding belts respectively connected to two sides of the mask body; the device also comprises a miniature fan, a control switch, a power supply, a control module, a temperature and humidity sensor, a fan speed regulating circuit, two air guide pipes and at least one external injection air supply pipe; the power supply is connected with the control module through the control switch to supply power to the control module; meanwhile, the temperature and humidity sensor is connected with the control module, the control module supplies power to the temperature and humidity sensor, the micro fan is connected with the control module through the fan speed regulating circuit, and the control module supplies power to the micro fan through the fan speed regulating circuit; the fan speed regulating circuit comprises an electric control slide rheostat, a resistor, a capacitor, a bidirectional trigger diode and a triac, wherein one end of the miniature fan is connected with a power supply positive electrode passing through the control module, and the other end of the miniature fan is respectively connected with a sliding end of the electric control slide rheostat and one wiring terminal of the triac; the maximum resistance end of the electric control slide rheostat is connected with one end of a resistor, and the other end of the resistor is respectively connected with one end of a capacitor and one end of a bidirectional trigger diode; the other end of the bidirectional trigger diode is connected with the gate end of the triac; the other end of the capacitor is respectively connected with a power supply cathode passing through the control module and the other terminal of the triac; the control module is connected with the electric control slide rheostat; the ends of the two bundling belts, which are far away from the mask body connected with the mask, are butted with each other, the control switch, the power supply, the control module and the fan speed regulating circuit are arranged on the bundling belts, the micro fan is fixedly connected and arranged at the butted positions of the two bundling belts, and the working air flow direction of the micro fan is back to the head direction; one end of each of the two air guide pipes is butted, and the butted end of the two air guide pipes is butted with the air flow inlet end face of the micro fan, so that the communication between the butted end of the two air guide pipes and the air flow inlet end face of the micro fan is realized; the mask body sequentially comprises a gauze layer mask body, an outer mask body and an inner mask body from outside to inside, wherein the shape and the size of the gauze layer mask body, the outer mask body and the inner mask body are the same; the edge of the outer cover body is correspondingly and hermetically connected with the edge of the inner cover body, an exhaust cavity is formed between the outer cover body and the inner cover body, the butted edges of the outer cover body and the inner cover body respectively correspond to the positions of two sides of the mask cover body and are respectively connected with the other ends of the two air guide pipes, and the ports of the two air guide pipes are respectively communicated with the exhaust cavity between the outer cover body and the inner cover body; the inner cover body is provided with at least one air exhaust through hole penetrating through two surfaces of the inner cover body; the outer cover body and the inner cover body are provided with at least one group of outer injection through hole groups, wherein each group of outer injection through hole group respectively comprises a first outer injection through hole penetrating through two surfaces of the outer cover body and a second outer injection through hole penetrating through two surfaces of the inner cover body, and the positions of the first outer injection through hole and the second outer injection through hole in each group of outer injection through hole groups correspond to each other; the group number of the outer injection through hole groups is equal to the group number of the outer injection air supply pipes, the inner diameters of the through holes in the outer injection through hole groups are adaptive to the outer diameters of the outer injection air supply pipes, each group of the outer injection through hole groups respectively correspond to each outer injection air supply pipe one by one, each outer injection air supply pipe is positioned in an exhaust cavity between an outer cover body and an inner cover body, and the two ends of each outer injection air supply pipe are respectively butted with a first outer injection through hole and a second outer injection through hole in the corresponding outer injection through hole group, so that the isolation of a communication area in each group of the outer injection through hole groups from the exhaust cavity between the outer cover body and the inner cover body is realized; the gauze layer cover body is covered and arranged on the outer side of the outer cover body; the temperature and humidity sensor is arranged on the inner side of the inner cover body.
As a preferred technical scheme of the invention: the miniature fan is a miniature brushless motor fan.
As a preferred technical scheme of the invention: the power supply is a button cell.
As a preferred technical scheme of the invention: the control module is a microprocessor.
As a preferred technical scheme of the invention: the microprocessor is an ARM processor.
Compared with the prior art, the medical gas replacement mask adopting the technical scheme has the following technical effects:
(1) the invention relates to a medical gas replacement type mask, which is based on the existing mask structure, introduces an electric control pressure difference driving type air convection structure, sequentially designs and adopts three-layer structures of a gauze layer mask body, an outer mask body and an inner mask body from outside to inside aiming at the mask body, constructs an exhaust cavity between the outer mask body and the inner mask body, detects the temperature and humidity of the inner side of the inner mask body by a temperature and humidity sensor as the basis, carries out intelligent speed regulation control on a miniature fan through a specifically designed fan speed regulation circuit, and quickly takes away the damp and hot air of the inner side of the inner mask body by combining each air exhaust through hole on the inner mask body based on an air duct which is in butt joint communication with the air inlet end of the miniature fan and the exhaust; the pressure difference between the inner side of the inner cover body and the outer side of the gauze layer cover body is presented, and the external air is injected into the inner side of the inner cover body through the outer cover body and each group of outer injection through hole groups on the inner cover body in combination with the corresponding outer injection air supply pipe, so that the replacement of the air is realized, and more comfortable use feeling is provided for a user;
(2) in the medical gas replacement type mask designed by the invention, aiming at the micro fan, the micro brushless motor fan is further designed and adopted, so that the medical gas replacement type mask designed by the invention can realize mute work in actual use, not only can the designed medical gas replacement type mask be ensured to provide comfortable wearing feeling, but also the working process of the medical gas replacement type mask can not influence the surrounding environment, and humanized design in the design process is embodied;
(3) according to the medical gas replacement type mask designed by the invention, the button cell is further designed and adopted aiming at the power supply, the advantage of small volume of the button cell is fully utilized, and the overall occupied space of the designed electric control pressure difference driving type air convection structure is greatly reduced, so that the appearance structure of the designed medical gas replacement type mask is kept to the maximum extent consistent with that of the existing mask, and the mask has the advantages of providing comfort by efficient air flow replacement and maintaining excellent portability;
(4) in the medical gas replacement type mask designed by the invention, aiming at the control module, the microprocessor is further designed and the ARM processor is particularly adopted, so that the medical gas replacement type mask can meet the expansion requirement aiming at the medical gas replacement type mask in the later period on one hand, and on the other hand, the simple control architecture mode can facilitate the later maintenance.
Drawings
FIG. 1 is a schematic side view of the medical gas replacement mask of the present invention;
fig. 2 is a schematic view of the mask body of the medical gas replacement mask according to the present invention.
The mask comprises a mask body 1, a mask body 2, a bundling belt 3, a miniature fan 4, an air guide pipe 5, an external injection air supply pipe 6, a gauze layer mask body 7, an outer mask body 8, an inner mask body 9, an air exhaust through hole 10, a first external injection through hole 11, a second external injection through hole 12, a control module 13, a temperature and humidity sensor 14 and a fan speed regulation circuit.
Detailed Description
The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention designs a medical gas replacement type mask, which comprises a mask body 1 and two tightening bands 2 respectively connected to two sides of the mask body 1; the device also comprises a micro fan 3, a control switch, a power supply, a control module 12, a temperature and humidity sensor 13, a fan speed regulating circuit 14, two air guide pipes 4 and at least one external air injection and supply pipe 5; the power supply is connected with the control module 12 through the control switch to supply power to the control module 12; meanwhile, the temperature and humidity sensor 13 is connected with the control module 12, the control module 12 supplies power to the temperature and humidity sensor 13, the micro fan 3 is connected with the control module 12 through the fan speed regulating circuit 14, and the control module 12 supplies power to the micro fan 3 through the fan speed regulating circuit 14; the fan speed regulating circuit 14 comprises an electric control slide rheostat, a resistor, a capacitor, a bidirectional trigger diode (DB 3) and a triac (BTB 04), wherein one end of the micro fan 3 is connected with a power supply anode passing through the control module 12, the other end of the micro fan 3 is respectively connected with a sliding end of the electric control slide rheostat and one terminal of the triac (BTB 04); the maximum resistance end of the electric control slide rheostat is connected with one end of a resistor, and the other end of the resistor is respectively connected with one end of a capacitor and one end of a bidirectional trigger diode (DB 3); the other end of the diac (DB 3) is connected to the gate terminal of the triac (BTB 04); the other end of the capacitor is respectively connected with the negative pole of the power supply passing through the control module 12 and the other terminal of the triac (BTB 04); the control module 12 is connected with the electric control slide rheostat; the two tightening belts 2 are respectively butted with the end parts far away from the mask body 1, the control switch, the power supply, the control module 12 and the fan speed regulating circuit 14 are arranged on the tightening belts 2, the micro fan 3 is fixedly connected with the butting positions of the two tightening belts 2, and the working airflow direction of the micro fan 3 is back to the head direction; one end of each of the two air guide tubes 4 is butted, and the butted end of each of the two air guide tubes 4 is butted with the air flow inlet end face of the micro fan 3, so that the communication between the butted end of each of the two air guide tubes 4 and the air flow inlet end face of the micro fan 3 is realized; as shown in fig. 2, the mask body 1 comprises a gauze layer mask body 6, an outer mask body 7 and an inner mask body 8 from outside to inside in sequence, wherein the shapes and the sizes of the gauze layer mask body 6, the outer mask body 7 and the inner mask body 8 are the same; the edge of the outer cover body 7 is correspondingly and hermetically connected with the edge of the inner cover body 8, an exhaust cavity is formed between the outer cover body 7 and the inner cover body 8, the butt joint edges of the outer cover body 7 and the inner cover body 8 respectively correspond to the positions of two sides of the mask cover body 1 and are respectively connected with the other ends of the two air guide pipes 4, and the ports of the two air guide pipes 4 are respectively communicated with the exhaust cavity between the outer cover body 7 and the inner cover body 8; the inner cover body 8 is provided with at least one air exhaust through hole 9 penetrating through two surfaces of the inner cover body; at least one group of outer injection through hole groups are arranged on the outer cover body 7 and the inner cover body 8, wherein each group of outer injection through hole group respectively comprises a first outer injection through hole 10 which penetrates through two surfaces of the outer cover body 7 and a second outer injection through hole 11 which penetrates through two surfaces of the inner cover body 8, and the positions of the first outer injection through hole 10 and the second outer injection through hole 11 in each group of outer injection through hole groups correspond to each other; the number of groups of the outer injection through hole groups is equal to the number of the outer injection air supply pipes 5, the inner diameters of the through holes in the outer injection through hole groups are adaptive to the outer diameters of the outer injection air supply pipes 5, each group of the outer injection through hole groups respectively correspond to each outer injection air supply pipe 5 one by one, each outer injection air supply pipe 5 is positioned in an exhaust cavity between the outer cover body 7 and the inner cover body 8, and the two ends of each outer injection air supply pipe 5 are respectively in butt joint with the first outer injection through hole 10 and the second outer injection through hole 11 in the corresponding outer injection through hole group, so that the isolation of a communication area in each group of the outer injection through hole groups from the exhaust cavity between the outer cover body 7 and the inner cover body 8 is realized; the gauze layer cover body 6 covers the outer side of the outer cover body 7; the temperature and humidity sensor 13 is provided inside the inner cover 8. The medical gas replacement type mask designed by the technical scheme is based on the existing mask structure, an electric control pressure difference driving type air convection structure is introduced, three-layer structures of a gauze layer mask body 6, an outer mask body 7 and an inner mask body 8 are sequentially designed from outside to inside aiming at a mask body 1, an exhaust cavity is formed between the outer mask body 7 and the inner mask body 8, the temperature and humidity of the inner side of the inner mask body 8 are detected by a temperature and humidity sensor 13 as the basis, intelligent speed regulation control is carried out on the micro fan 3 through a specifically designed fan speed regulation circuit 14, and on the basis of an air duct 4 which is in butt joint communication with the air inlet end of the micro fan 3 and the exhaust cavity, the humid and hot air on the inner side of the inner mask body 8 is rapidly taken away by combining each air exhaust through hole; therefore, the pressure difference between the inner side of the inner cover body 8 and the outer side of the gauze layer cover body 6 is presented, and the external air is injected into the inner side of the inner cover body 8 through the outer cover body 7 and each group of outer injection through hole groups on the inner cover body 8 in combination with the corresponding outer injection and air supply pipe 5, so that the replacement of the air is realized, and more comfortable use feeling is provided for a user.
Based on the technical scheme of designing the medical gas replacement mask, the invention further designs the following preferred technical scheme: aiming at the micro fan 3, a micro brushless motor fan is further designed, so that the medical gas replacement type mask designed by the invention can realize mute work in actual use, not only can the designed medical gas replacement type mask be ensured to provide comfortable wearing feeling, but also the working process of the mask can not influence the surrounding environment, and humanized design in the design process is embodied; aiming at a power supply, a button cell is further designed, the advantage of small volume of the button cell is fully utilized, and the whole occupied space of the designed electric control pressure difference driving type air convection structure is greatly reduced, so that the appearance structure of the designed medical gas replacement type mask consistent with that of the existing mask is kept to the maximum extent, the comfortable feeling is provided by efficient airflow replacement, and meanwhile, the excellent portability is kept; to control module 12, the further design adopts microprocessor to specifically adopt the ARM treater, can be applicable to the extended demand of later stage to medical gas replacement formula gauze mask on the one hand, on the other hand, the maintenance of later stage can be convenient for to succinct control framework mode.
The medical gas replacement type mask comprises a mask body 1 and two binding belts 2 which are respectively connected to two sides of the mask body 1 in the actual application process; the device also comprises a miniature brushless motor fan, a control switch, a button battery, an ARM processor, a temperature and humidity sensor 13, a fan speed regulating circuit 14, two air guide pipes 4 and at least one external air injection and supply pipe 5; the button battery is connected with the ARM processor through the control switch to supply power to the ARM processor; meanwhile, the temperature and humidity sensor 13 is connected with the ARM processor, the temperature and humidity sensor 13 is powered by the ARM processor, the miniature brushless motor fan is connected with the ARM processor through the fan speed regulating circuit 14, and the miniature brushless motor fan is powered by the ARM processor through the fan speed regulating circuit 14; the fan speed regulating circuit 14 comprises an electric control slide rheostat, a resistor, a capacitor, a bidirectional trigger diode (DB 3) and a triac (BTB 04), wherein one end of the miniature brushless motor fan is connected with a power supply anode passing through the ARM processor, and the other end of the miniature brushless motor fan is respectively connected with a sliding end of the electric control slide rheostat and one terminal of the triac (BTB 04); the maximum resistance end of the electric control slide rheostat is connected with one end of a resistor, and the other end of the resistor is respectively connected with one end of a capacitor and one end of a bidirectional trigger diode (DB 3); the other end of the diac (DB 3) is connected to the gate terminal of the triac (BTB 04); the other end of the capacitor is respectively connected with the negative electrode of the power supply passing through the ARM processor and the other terminal of the triac (BTB 04); the ARM processor is connected with the electric control slide rheostat; the two take-up belts 2 are respectively butted with the end parts far away from the connecting mask body 1, the control switch, the button cell, the ARM processor and the fan speed regulating circuit 14 are arranged on the take-up belts 2, the miniature brushless motor fan is fixedly connected and arranged at the butted positions of the two take-up belts 2, and the working air flow direction of the miniature brushless motor fan is opposite to the head direction; one end of each of the two air guide tubes 4 is butted, and the butted end of each of the two air guide tubes 4 is butted with the air flow inlet end face of the miniature brushless motor fan, so that the communication between the butted end of each of the two air guide tubes 4 and the air flow inlet end face of the miniature brushless motor fan is realized; the mask body 1 sequentially comprises a gauze layer mask body 6, an outer mask body 7 and an inner mask body 8 from outside to inside, wherein the shape and the size of the gauze layer mask body 6, the outer mask body 7 and the inner mask body 8 are the same; the edge of the outer cover body 7 is correspondingly and hermetically connected with the edge of the inner cover body 8, an exhaust cavity is formed between the outer cover body 7 and the inner cover body 8, the butt joint edges of the outer cover body 7 and the inner cover body 8 respectively correspond to the positions of two sides of the mask cover body 1 and are respectively connected with the other ends of the two air guide pipes 4, and the ports of the two air guide pipes 4 are respectively communicated with the exhaust cavity between the outer cover body 7 and the inner cover body 8; the inner cover body 8 is provided with at least one air exhaust through hole 9 penetrating through two surfaces of the inner cover body; at least one group of outer injection through hole groups are arranged on the outer cover body 7 and the inner cover body 8, wherein each group of outer injection through hole group respectively comprises a first outer injection through hole 10 which penetrates through two surfaces of the outer cover body 7 and a second outer injection through hole 11 which penetrates through two surfaces of the inner cover body 8, and the positions of the first outer injection through hole 10 and the second outer injection through hole 11 in each group of outer injection through hole groups correspond to each other; the number of groups of the outer injection through hole groups is equal to the number of the outer injection air supply pipes 5, the inner diameters of the through holes in the outer injection through hole groups are adaptive to the outer diameters of the outer injection air supply pipes 5, each group of the outer injection through hole groups respectively correspond to each outer injection air supply pipe 5 one by one, each outer injection air supply pipe 5 is positioned in an exhaust cavity between the outer cover body 7 and the inner cover body 8, and the two ends of each outer injection air supply pipe 5 are respectively in butt joint with the first outer injection through hole 10 and the second outer injection through hole 11 in the corresponding outer injection through hole group, so that the isolation of a communication area in each group of the outer injection through hole groups from the exhaust cavity between the outer cover body 7 and the inner cover body 8 is realized; the gauze layer cover body 6 covers the outer side of the outer cover body 7; the temperature and humidity sensor 13 is provided inside the inner cover 8. In practical application, a user wears a designed medical gas replacement mask, and controls and communicates a button cell to supply power to an ARM processor through a control switch, then the ARM processor supplies power to a temperature and humidity sensor 13, the temperature and humidity sensor 13 arranged on the inner side of an inner cover body 8 works in real time, a temperature and humidity detection result on the inner side of the inner cover body 8 is obtained through real-time detection and is uploaded to the ARM processor in real time, the ARM processor analyzes and judges the received temperature and humidity detection result in real time and performs corresponding operation in real time according to the judgment result, wherein if the temperature and humidity detection result is lower than a preset temperature and humidity detection result threshold value, the ARM processor judges that air on the inner side of the inner cover body 8 is dry at the moment according to the judgment result, control is not needed, and the ARM processor does not perform any further control; if the temperature and humidity detection result is greater than or equal to the preset temperature and humidity detection result threshold value, the ARM processor judges that the air inside the inner cover body 8 is moist according to the temperature and humidity detection result threshold value, and then the ARM processor immediately controls the micro brushless motor fan to work through the fan speed regulating circuit 14, wherein the ARM processor sends a working command to the fan speed regulating circuit 14, the fan speed regulating circuit 14 generates a corresponding working command according to the received working command and sends the working command to the micro brushless motor fan to control the micro brushless motor fan to work, because the working airflow direction of the micro brushless motor fan is back to the head direction, the butt joint ends of the two air guide pipes 4 are butted with the airflow inlet end face of the micro brushless motor fan, the ports of the two air guide pipes 4 are respectively communicated with the exhaust cavity between the outer cover body 7 and the inner cover body 8, and based on the airflow direction of, the air in the exhaust cavity between the outer cover body 7 and the inner cover body 8 is rapidly discharged through the air guide tube 4, and because the air in the exhaust cavity is rapidly discharged, an air pressure difference is formed between the inside of the exhaust cavity and the inside of the inner cover body 8, and under the action of the air pressure difference, the damp and hot air at the inside of the inner cover body 8 rapidly flows into the exhaust cavity through each air exhaust through hole 9 on the inner cover body 8 and is further discharged outwards through the air guide tube 4 under the action of the air flow of the miniature brushless motor fan; thus, the damp and hot air inside the inner cover 8 is continuously discharged, and an air pressure difference is formed between the inner side of the inner cover 8 and the outer side of the gauze layer cover 6, thus, under the action of the air pressure difference, the air outside the gauze layer mask body 6 firstly passes through the gauze layer mask body 6, then, the outer cover body 7 and each group of outer injection through hole groups on the inner cover body 8 are combined with each outer injection and air supply pipe 5 which is respectively butted with each group of outer injection through hole groups to realize the injection of the outside air to the inner side of the inner cover body 8, because the two ends of each external injection air-supply pipe 5 are respectively butted with the first external injection through hole 10 and the second external injection through hole 11 in the corresponding external injection through hole group, the external air injected through the external air injection pipe 5 and the external air discharged from the exhaust cavity are independent from each other and do not affect each other, therefore, the air replacement application is realized, and the designed medical air replacement type mask provides more comfortable use feeling for a user in practical application. Meanwhile, in the process of controlling the miniature brushless motor fan through the fan speed regulating circuit 14 under the condition that the temperature and humidity detection result of the ARM processor is greater than or equal to the preset temperature and humidity detection result threshold, if the temperature and humidity detection result continues to increase, the ARM processor sends a rotating speed increasing instruction to the fan speed regulating circuit 14, and the fan speed regulating circuit 14 controls and increases the rotating speed of the miniature brushless motor fan according to the received rotating speed increasing instruction, increases airflow power generated by the miniature brushless motor fan during working, and accelerates air replacement efficiency; if the temperature and humidity detection result is continuously reduced under the condition that the temperature and humidity detection result is greater than or equal to the preset temperature and humidity detection result threshold value, the ARM processor sends a rotating speed reduction instruction to the fan speed regulating circuit 14, the fan speed regulating circuit 14 controls and reduces the rotating speed of the miniature brushless motor fan according to the received rotating speed reduction instruction, the airflow power generated by the working of the miniature brushless motor fan is reduced, and the air replacement rate is reduced.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (1)
1. A medical gas replacement type mask comprises a mask body (1) and two binding belts (2) which are respectively connected with the two sides of the mask body (1); the method is characterized in that: the device also comprises a micro fan (3), a control switch, a power supply, a control module (12), a temperature and humidity sensor (13), a fan speed regulating circuit (14), two air guide pipes (4) and a plurality of external injection air supply pipes (5); the power supply is connected with the control module (12) through the control switch and supplies power to the control module (12); meanwhile, the temperature and humidity sensor (13) is connected with the control module (12), the control module (12) supplies power to the temperature and humidity sensor (13), the micro fan (3) is connected with the control module (12) through the fan speed regulating circuit (14), and the control module (12) supplies power to the micro fan (3) through the fan speed regulating circuit (14); the fan speed regulating circuit (14) comprises an electric control slide rheostat, a resistor, a capacitor, a bidirectional trigger diode and a triac, wherein one end of the miniature fan (3) is connected with a power supply anode passing through the control module (12), and the other end of the miniature fan (3) is respectively connected with a sliding end of the electric control slide rheostat and one wiring terminal of the triac; the maximum resistance end of the electric control slide rheostat is connected with one end of a resistor, and the other end of the resistor is respectively connected with one end of a capacitor and one end of a bidirectional trigger diode; the other end of the bidirectional trigger diode is connected with the gate end of the triac; the other end of the capacitor is respectively connected with a power supply negative electrode passing through the control module (12) and the other terminal of the triac; the control module (12) is connected with the electric control slide rheostat; the end parts of the two binding belts (2) far away from the connecting mask body (1) are butted with each other, the control switch, the power supply, the control module (12) and the fan speed regulating circuit (14) are arranged on the binding belts (2), the micro fan (3) is fixedly connected and arranged at the butted positions of the two binding belts (2), and the working air flow direction of the micro fan (3) is back to the head direction; one end of each of the two air guide pipes (4) is butted, and the butted end of each of the two air guide pipes (4) is butted with the air flow inlet end face of the micro fan (3), so that the communication between the butted end of each of the two air guide pipes (4) and the air flow inlet end face of the micro fan (3) is realized; the mask body (1) sequentially comprises a gauze layer mask body (6), an outer mask body (7) and an inner mask body (8) from outside to inside, wherein the shape and the size of the gauze layer mask body (6), the outer mask body (7) and the inner mask body (8) are the same; the edge of the outer cover body (7) is correspondingly and hermetically connected with the edge of the inner cover body (8), an exhaust cavity is formed between the outer cover body (7) and the inner cover body (8), the butt joint edges of the outer cover body (7) and the inner cover body (8) respectively correspond to the positions of two sides of the mask cover body (1) and are respectively connected with the other ends of the two air guide pipes (4), and the ports of the two air guide pipes (4) are respectively communicated with the exhaust cavity between the outer cover body (7) and the inner cover body (8); the inner cover body (8) is provided with a plurality of air extraction through holes (9) which penetrate through the two surfaces of the inner cover body; a plurality of groups of external injection through hole groups are arranged on the outer cover body (7) and the inner cover body (8), wherein each group of external injection through hole group respectively comprises a first external injection through hole (10) which is arranged to penetrate through two surfaces of the outer cover body (7) and a second external injection through hole (11) which is arranged to penetrate through two surfaces of the inner cover body (8), and the positions of the first external injection through hole (10) and the second external injection through hole (11) in each group of external injection through hole group correspond to each other; the number of groups of the outer injection through hole groups is equal to the number of the outer injection air pipes (5), the inner diameters of the through holes in the outer injection through hole groups are adaptive to the outer diameters of the outer injection air pipes (5), each group of outer injection through hole groups respectively correspond to each outer injection air pipe (5) one by one, each outer injection air pipe (5) is positioned in an exhaust cavity between the outer cover body (7) and the inner cover body (8), and two ends of each outer injection air pipe (5) are respectively in butt joint with a first outer injection through hole (10) and a second outer injection through hole (11) in the corresponding outer injection through hole group, so that the isolation of the exhaust cavity between a communication area in each group of outer injection through hole groups and the outer cover body (7) and the inner cover body (8) is realized; the air exhaust through holes (9) and the external injection air supply pipe (5) are arranged at intervals; the gauze layer cover body (6) is covered and arranged on the outer side of the outer cover body (7); the temperature and humidity sensor (13) is arranged on the inner side of the inner cover body (8); the miniature fan (3) is a miniature brushless motor fan; the power supply is a button battery; the control module (12) is a microprocessor; the microprocessor is an ARM processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152557.5A CN108095228B (en) | 2018-02-16 | 2018-02-16 | Medical gas replacement formula gauze mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152557.5A CN108095228B (en) | 2018-02-16 | 2018-02-16 | Medical gas replacement formula gauze mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108095228A CN108095228A (en) | 2018-06-01 |
| CN108095228B true CN108095228B (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810152557.5A Expired - Fee Related CN108095228B (en) | 2018-02-16 | 2018-02-16 | Medical gas replacement formula gauze mask |
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| Country | Link |
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| CN (1) | CN108095228B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030154983A1 (en) * | 2002-02-15 | 2003-08-21 | Marx Alvin J. | Personal air filtering device |
| CN104415473A (en) * | 2013-09-10 | 2015-03-18 | 哈尔滨安赛福经贸有限公司 | Automatic circulating mask |
| CN105617565B (en) * | 2014-11-26 | 2019-03-29 | 比亚迪股份有限公司 | A kind of filtering type breathing mask |
| CN204582344U (en) * | 2015-03-30 | 2015-08-26 | 上海畅波智能化科技有限公司 | A kind of sports type powered supplied air respirator |
| CN106152300A (en) * | 2015-04-24 | 2016-11-23 | 王锦林 | Health type Portable type air filter |
| CN105457176A (en) * | 2016-01-19 | 2016-04-06 | 缑威 | Novel air purifier |
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2018
- 2018-02-16 CN CN201810152557.5A patent/CN108095228B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN108095228A (en) | 2018-06-01 |
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| CB03 | Change of inventor or designer information |
Inventor after: Yin Xia Inventor after: Zhao Wenjing Inventor after: Song Yongxiu Inventor before: Song Yongxiu |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20191128 Address after: 262200 Zhucheng City Hospital of traditional Chinese medicine, 168 East Guan Street, Zhucheng City, Shandong, Weifang Applicant after: Yin Xia Applicant after: Zhao Wenjing Address before: 610000 Xinyi center, 87 five east section, Jinjiang District first ring road, Chengdu, Sichuan Applicant before: Song Yongxiu |
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