CN114712741A

CN114712741A - Cap type air curtain gauze mask

Info

Publication number: CN114712741A
Application number: CN202210403217.1A
Authority: CN
Inventors: 马越; 孙程绪; 倪玺杰; 李海鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-08
Anticipated expiration: 2042-04-18
Also published as: CN114712741B

Abstract

The invention relates to the technical field of masks, in addition, the cap type air curtain mask comprises two air pumps, output ends of the two air pumps are communicated with Laval tubes, an air knife is communicated between the two Laval tubes, a guide air nozzle for air outlet is arranged below the air knife, a rectification structure is arranged inside the air knife, an elastic clamp clamped with the air knife is arranged outside the air knife and is used for clamping the cap brim of a cap, air flow input by the air pump is accelerated by the Laval tubes and the air knife, an air curtain is formed by the guide air nozzle, the air curtain is in clearance fit with the human face, a power supply module is arranged inside the elastic clamp, according to the scheme, the clean air flow output by the air pumps is accelerated by the Laval tubes and a super air knife, so that the air curtain is formed below the guide air nozzle, harmful gas, dust and the like outside are isolated, the safety of a user is guaranteed, ensure the breathing smoothness and reduce the uncomfortable feeling of wearing.

Description

Cap type air curtain gauze mask

Technical Field

The invention relates to the field of masks, in particular to a cap type air curtain mask.

Background

The mask is a sanitary article, is generally worn on the mouth and nose for filtering air entering the mouth and nose so as to achieve the effect of blocking harmful gas, smell, droplets, viruses and other substances, and is made of gauze, paper and other materials. The mask has a certain filtering function on air entering the lung, and has a very good function when being worn during operation in environments polluted by dust and the like when respiratory infectious diseases are prevalent; the mask may be classified into an air filtration type mask and an air supply type mask.

The existing mask wearing modes are mostly ear-wearing type, head-wearing type and neck-wearing type, the mask outline structure mainly comprises flat plate type, folding type, cup type and the like, the ventilation structure of the mask is ventilated from an initial gap, the ventilation structure is developed into ventilation of a breather valve, air supply by using a micro fan and the like, but the traditional masks are arranged close to the mouth and the nose, and the problem of unsmooth breathing of a wearer exists, so that the wearable air purifier is suitable for operation, the existing wearable air purifier mainly comprises rope-hanging type, mask type and head-wearing type, the existing wearable air purifier is slightly steep when being worn, meanwhile, the size is large, the wearable air purifier is inconvenient to carry, the selling price is high, the user experience is poor, in addition, most of the existing wearable air purifiers are not gathered enough in air flow, the existing wearable air purifiers are easily influenced by external air flow, the generated clean air is easily interfered by the outside, and the actually utilized clean air quantity is small, cannot really replace the mask.

With respect to the related art among the above, the inventors consider that the above-described drawbacks exist.

Disclosure of Invention

In order to solve the above-mentioned problems, the present invention provides a cap type air curtain mask.

The cap type air curtain mask provided by the invention adopts the following technical scheme:

cap formula air curtain gauze mask, including two air pumps, two the output of air pump all communicates there is the laval pipe, and the intercommunication has the air knife between two laval pipes, the below of air knife is provided with the direction air cock that is used for the air-out, and the inside of air knife is provided with the rectification structure, the outside of air knife is provided with the elasticity clamp rather than the joint, and the elasticity clamp be used for with the brim of a hat of cap carry out the centre gripping, the air current of air pump input forms the air curtain through the direction air cock through the acceleration of laval pipe and air knife, air curtain and human face clearance fit, the entry radius of laval pipe is 3mm, the throat radius is 1.2mm, export radius 2.45mm, contraction section length 13.2mm, expansion section length 92.4mm, tube wall thickness 0.5mm, the input of air pump is provided with detachable graphite alkene filtration membrane, the inboard of elasticity clamp is provided with power module.

Preferably, the inside rectification structure of air knife includes first cavity, second cavity and outer cavity, first cavity, second cavity and outer cavity set gradually from inside to outside, and all communicate the setting between adjacent two in first cavity, second cavity and the outer cavity, all be provided with the baffle that longitudinal section is C shape structure between adjacent two cavities of first cavity, second cavity and outer cavity, and the opening of two baffles sets up in opposite directions, the baffle opening orientation direction air cock setting of first cavity and second cavity.

Preferably, the calculation formula of the contraction section of the laval pipe is as follows:

the expansion section calculation formula is:

the output pressure of the air pump is 0.06 MPa.

Preferably, the elasticity presss from both sides overlooks and personally submits C nature structure, and C shape structure central line position has seted up logical groove, the upper and lower side that leads to the groove all inlays and is equipped with rubber magnet, the below fixedly connected with draw-in groove of elasticity clamp, and the joint between draw-in groove and the air knife.

Preferably, the power supply module comprises a thin-film solar module and a lithium battery, the thin-film solar module is electrically connected with the lithium battery, the lithium battery is electrically connected with the air pump, one side of the power supply module is fixedly connected with a wind power adjusting module, the wind power adjusting module comprises an air quality sensor, the air quality sensor is in communication connection with the air pump, and the air quality sensor is electrically connected with the lithium battery.

In summary, the invention includes at least one of the following beneficial technical effects:

clean air flow output by the air pump is accelerated through the Laval tube and the super air knife, so that an air curtain is formed below the guide air tap, external harmful gas, dust and the like are isolated, the safety of a user is guaranteed, the user can breathe smoothly, and the uncomfortable feeling of wearing the air pump is reduced; meanwhile, the device is conveniently powered through the matching of the thin-film solar module and the lithium battery, is convenient to carry, and ensures the durability of the device; through the electric connection of air quality sensor and air pump, utilize the perception of air quality sensor to the air quality to carry out convenient control to the flow of air pump, realize real-time convenient adjustment.

Drawings

FIG. 1 is an isometric illustration of an embodiment of the invention.

FIG. 2 is a bottom isometric illustration of an embodiment of the invention.

Fig. 3 is a schematic structural diagram of a clamping mechanism according to an embodiment of the invention.

Fig. 4 is a schematic view of the internal structure of the air knife according to the embodiment of the invention.

Fig. 5 is a circuit diagram of the air quality sensor and the air pump according to the embodiment of the invention.

Fig. 6 is a circuit diagram for charging a thin film solar module according to an embodiment of the invention.

Description of reference numerals: 1. an air pump; 2. a connecting pipe; 3. a laval tube; 4. an elastic clip; 5. a rubber magnet; 6. a card slot; 7. an air knife; 701. a first chamber; 702. a second chamber; 703. an outer chamber; 704. a guide air tap; 8. a thin film solar module; 9. a lithium battery; 10. an air quality sensor.

Detailed Description

The invention is described in further detail below with reference to figures 1-6.

The air pump 1 and the air quality sensor 10 related to the invention are respectively as follows: (EDZP02-03 type circulating diaphragm positive pressure air pump, ZP07-MP503 air quality sensor);

the embodiment of the invention discloses a cap type air curtain mask. Referring to fig. 1-6, the cap type air curtain mask comprises two air pumps 1, output ends of the two air pumps 1 are communicated with laval tubes 3, the two air pumps 1 are communicated with the laval tubes 3 through soft connecting pipes 2, the air pumps 1 are preferably installed on a brim, an air knife 7 is communicated between the two laval tubes 3, the preferred air knife 7 adopts an improved high-speed air knife 7, the air knife 7 is arranged to be in an arc structure for fitting a human head, the direction of an air outlet is adjusted, the size of the adjusted bent pipe type air knife 7 is told to be 10mm in outer diameter, 9.8mm in inner diameter, 220 degree of bending angle, 195.5mm in maximum diameter, a guide air nozzle 704 for air outlet is arranged below the air knife 7, a rectification structure is arranged inside the air knife 7, the rectification structure inside the air knife 7 comprises a first cavity 701, a second cavity 702 and an outer cavity 703, first cavity 701, second cavity 702 and outer cavity 703 set gradually from inside to outside, and first cavity 701, all communicate the setting between two adjacent in second cavity 702 and the outer cavity 703, first cavity 701, all be provided with the baffle that longitudinal section is C shape structure between two adjacent cavities of second cavity 702 and outer cavity 703, and the opening of two baffles sets up in opposite directions, baffle opening orientation direction air cock 704 sets up between first cavity 701 and the second cavity 702, the outside of air knife 7 is provided with the elastic clamp 4 rather than the joint, and elastic clamp 4 is used for the brim of a hat to carry out the centre gripping, elastic clamp 4 overlooks and is C linear structure, and logical groove has been seted up to C shape structure central line position, logical groove has been seted up to logical structure central line position, it sets gradually to lead to outside cavity 703, and first cavity 701, and second cavity 702 and outer cavity 703 are adjacent to all to be provided with the baffle that longitudinal section is C shape structure between two cavities, and the opening of two baffles is opposite directions sets up, and elastic clamp 4 is used for the brim of a hat to carry out the centre gripping, elastic clamp 4 is overlooked and is C linear structureOn the groove, the downside all inlays and is equipped with rubber magnet 5, when pegging graft the device on the brim of a hat through the elasticity clamp, elasticity clamp 4 has the clamping-force to the inboard, 5 relative one side opposite sex settings of rubber magnet, promote the centre gripping elasticity to the brim of a hat, thereby promote the centre gripping stability, simultaneously should well centre gripping mode be convenient for adjust and the interval between the face, guarantee the effect of air curtain to the face, the below fixedly connected with draw-in groove 6 of elasticity clamp 4, and the joint between draw-in groove 6 and the

air knife

7, 6 longitudinal section of preferred draw-in groove is C shape structure, and the opening of C shape structure sets up towards the below, interference fit between draw-in groove 6 and the air knife 7, the air current of air pump 1 input passes through the acceleration of Laval pipe 3 and air knife 7, form the air curtain through direction air cock 704, air curtain and facial clearance fit, the shrink section calculation formula of Laval pipe 3 does:

the expansion section calculation formula is:

the output pressure of the air pump 1 is 0.06MPa, the inlet radius of the Laval tube 3 is 3mm, the throat radius is 1.2mm, the outlet radius is 2.45mm, the length of the contraction section is 13.2mm, the length of the expansion section is 92.4mm, the wall thickness of the tube is 0.5mm, the input end of the air pump 1 is provided with a detachable graphene filtering membrane, the passing air is filtered by the graphene filtering membrane, thereby isolating most viruses, PM2.5 and the like from being output by the air curtain through the air pump 1, ensuring the cleanliness of air flow of the air curtain and realizing the effect of the mask, wherein the inner side of the elastic clamp 4 is provided with a power supply module, the power supply module comprises a thin-film solar component 8 and a lithium battery 9, the thin-film solar component 8 is electrically connected with the lithium battery 9, and electric connection between lithium cell 9 and the air pump 1, one side fixedly connected with wind-force adjusting module of power module, wind-force adjusting module include air quality sensor 10, and air quality sensor 10 gentleness.The air quality sensor 10 works on the principle that when the external air quality is reduced, the current of a circuit is increased, after a certain value is reached, the spring elasticity at the switch cannot counteract the magnetic force of the electromagnet to maintain the switch to be in an off state, the switch is closed, the air pump 1 works, when the air quality is improved, the conductivity of the sensor is improved, the spring elasticity is greater than the magnetic force of the electromagnet, the switch is disconnected again, a capacitor is added in the circuit, and the air pump 1 can be ensured to run until the harmful gas in the air is smaller than a critical value; the environmental pollution index is monitored by using the high-sensitivity air quality sensor 10, so that the requirement of adjusting the air supply quantity of the air pump 1 is met.

The implementation principle of the cap type air curtain mask provided by the embodiment of the invention is as follows: clamping an air knife 7 to the inner side of a clamping groove 6, adjusting the orientation of a guide air nozzle 704 below the air knife 7 to enable the guide air nozzle to be arranged towards the human face, wherein a gap is formed between an air curtain formed by the guide air nozzle 704 and the human face, and the gap can not allow external air to flow in due to the irregular diffusion of the edge position of the air flow, so as to ensure that the air between the air curtain and the human face is always clean, then sleeving an elastic clamp 4 on a brim, clamping the brim by the elastic structure of the elastic clamp 4, mutually attracting two rubber magnets 5 on the inner side of the elastic clamp, ensuring the stable clamping of the brim by the elastic clamp 4, keeping the position and orientation of the air knife 7 stable, when the air quality detected by an air quality sensor 10 is poor, triggering an internal circuit, so as to transmit signals to an air pump 1, starting to act by the two air pumps 1, after the air pump 1 accelerates the clean air filtered by a graphene filtering membrane through a laval tube 3, conduct the inside to air knife 7, through its inside first cavity 701, second cavity 702 and outer cavity 703 carry out the rectification and handle the back, form the air curtain via direction air cock 704 downward output, thereby handle the air in user's oronasal the place ahead, reduce outside dirty air and reach user's oronasal position department, the part supplies the user to breathe to the diffuse clean air in people's face and uses, realize the effect of replacing the gauze mask, the size of the electric current of conducting according to air quality sensor 10, realize the convenient control to air pump 1 flow, thereby realize automatic adjustment.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Cap formula air curtain gauze mask, including two air pumps (1), its characterized in that: the output of two air pump (1) all communicates with laval pipe (3), and the intercommunication has air knife (7) between two laval pipe (3), the below of air knife (7) is provided with direction air cock (704) that is used for the air-out, and the inside of air knife (7) is provided with the rectification structure, the outside of air knife (7) is provided with elasticity clamp (4) rather than the joint, and elasticity clamp (4) are used for carrying out the centre gripping with the brim of a hat, the air current of air pump (1) input forms the air curtain through direction air cock (704) through the acceleration of laval pipe (3) and air knife (7), air curtain and human face clearance fit, the entry radius of laval pipe (3) is 3mm, and the throat radius is 1.2mm, and the exit radius is 2.45mm, and the contraction section length is 13.2mm, and the expansion section length is 92.4mm, and the pipe wall thickness is 0.5mm, the input of air pump (1) is provided with detachable graphite alkene filtration membrane, and a power supply module is arranged on the inner side of the elastic clamp (4).

2. The cap-style air curtain mask as claimed in claim 1, wherein: the inside rectification structure of air knife (7) includes first cavity (701), second cavity (702) and outer cavity (703), first cavity (701), second cavity (702) and outer cavity (703) set gradually from inside to outside, and all communicate the setting between adjacent two in first cavity (701), second cavity (702) and outer cavity (703), all be provided with the baffle that longitudinal section is C shape structure between adjacent two cavities of first cavity (701), second cavity (702) and outer cavity (703), and the opening of two baffles sets up in opposite directions, baffle opening sets up towards direction air cock (704) between first cavity (701) and second cavity (702).

3. The cap-style air curtain mask as claimed in claim 1, wherein: the calculation formula of the contraction section of the Laval pipe (3) is as follows:

the expansion section calculation formula is:

the output pressure of the air pump (1) is 0.06 MPa.

4. The cap-style air curtain mask as claimed in claim 1, wherein: elasticity presss from both sides (4) overlook and personally submits C nature structure, and C shape structure central line position has seted up logical groove, the upper and lower side that leads to the groove all inlays and is equipped with rubber magnet (5), the below fixedly connected with draw-in groove (6) of elasticity clamp (4), and joint between draw-in groove (6) and air knife (7).

5. The cap-style air curtain mask as claimed in claim 1, wherein: the power supply module comprises a thin-film solar module (8) and a lithium battery (9), wherein the thin-film solar module (8) is electrically connected with the lithium battery (9), the lithium battery (9) is electrically connected with the air pump (1), one side of the power supply module is fixedly connected with a wind power adjusting module, the wind power adjusting module comprises an air quality sensor (10), the air quality sensor (10) is in communication connection with the air pump (1), and the air quality sensor (10) is electrically connected with the lithium battery (9).