CN212308685U

CN212308685U - Positive pressure type air supply cap

Info

Publication number: CN212308685U
Application number: CN202020527499.2U
Authority: CN
Inventors: 谭会民; 刘道胜
Original assignee: Shenzhen Innokin Technology Co Ltd
Current assignee: Shenzhen Innokin Technology Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-01-08
Anticipated expiration: 2030-04-10

Abstract

The utility model provides a positive pressure type cap of supplying gas, it includes: a body, the front part of which is provided with a brim; the air supply device is detachably arranged on the brim and comprises a shell, an air inlet and an air outlet are formed in the shell, an air supply channel is formed between the air inlet and the air outlet, an ultraviolet lamp, a filtering piece and a fan are arranged in the shell, and the ultraviolet lamp, the filtering piece and the fan are sequentially arranged along the direction of the air supply channel; an eye-protecting piece, detachably installs in the brim of a hat, and eye-protecting piece downwardly extending, after positive pressure formula cap of supplying gas was worn in people's head, the outside air got into the through-hole downward flow after the disinfection filtration through the passageway of supplying gas, and the atmospheric pressure that forms between people's face and eye-protecting piece is greater than outside atmospheric pressure, and the outside air flows downwards after the disinfection filtration through the passageway of supplying gas, and the atmospheric pressure that forms between people's face and eye-protecting piece is greater than outside atmospheric pressure. The mask is replaced, the ears of people can be completely liberated, and the safety and the comfort of people going out are ensured.

Description

Positive pressure type air supply cap

Technical Field

The utility model relates to a positive pressure type air supply cap.

Background

At present, the outgoing activities become necessary for people, but at present, some protective measures are needed to ensure the safety of people when people go out in an epidemic situation, for example, the mask is worn to prevent external viruses and bacteria from entering the oral cavity of people to cause bacteria and virus infection, generally speaking, the mask is made of non-woven fabric materials, and the medical protective mask, N95 mask is generally of a multilayer structure, also called SMS structure, and has a 3-layer structure, SMS (2S layers and 1M layer), S represents a spun-bonded layer, the diameter is about 20 μ M, the main function is to support the mask structure, the blocking effect is not large, M represents a blocking layer, the most important structure of the mask, the diameter is about 2 μ M, and the most important function is played in blocking bacteria, viruses and blood permeation. The melt-blown layer (spun-bonded layer), commonly called the 'heart' of the mask, is a filtering layer and a blocking layer in the middle of the mask and can filter bacteria and prevent germs from spreading. The melt-blown fabric is a film made of polypropylene with a high melt index and formed by laminating a plurality of criss-cross fibers in random directions, the diameter of the fibers ranges from 0.5 to 10 micrometers, and the diameter of the fibers is about one-thirtieth of that of hair.

However, when the user wears the mask for a long time, the following problems occur:

first, the respiratory resistance problem. The mask with certain protection capability is of a layered structure, but the mask with better protection effect generally has more layers and larger breathing resistance, which affects the breathing of human body, and particularly causes more difficulty in breathing for people with respiratory diseases.

Secondly, for the people who have been infected with pathogens, the mask can prevent the people from being infected with pathogens again, but the viruses can be sucked back to the body, the disease condition can be aggravated by repeated infection, and even the people are in danger of death due to transitional immunity.

Thirdly, the mask is not suitable for all people in all countries of the world, and the mask is not allowed to be worn due to religion and legal restrictions in part of regions, so that inconvenience is brought, and the purpose of protecting the mask worn by people is difficult to achieve even in the period of epidemic diseases.

Fourth, when wearing the mask, whatever mask is in a negative pressure state when breathing in, under the negative pressure state, the tightness of the edge of the mask is difficult to ensure, the edge is easy to leak air, and if the surrounding environment has pathogens, the risk of infection still exists.

Fifthly, due to easy air leakage, the mask belt needs to be pulled tightly by a user, facial indentations, even blisters, skin allergy, exfoliation and skin injury are easy to occur when the mask is worn for a long time, the possibility of infection is directly increased, and the risk of infection still exists, especially for medical care.

Sixthly, present gauze mask does not all have the function of eye protection, and the gauze mask of wearing has only played the virus that blocks of respiratory track, and eyes still expose outside this moment, and eyes also have the mucosa structure, expose and be very easily infect in the pathogen environment, also be the place of key protection. Therefore, the goggles are required to be worn to protect the eyes, but the wearing difficulty of the goggles is higher, and the comfort is poorer.

Seventh, if the mask is worn in summer, it is very hot, and it is easy to wet the mask due to sweating, which may cause unsmooth ventilation and even heatstroke. It is also a fact that the protection ability of the mask is reduced after being wetted.

Eighth, after wearing the mask, both speech communication and breathing are affected by different degrees, which brings inconvenience to daily work and life.

Ninth, wearing the mask increases the sensitivity of the person to temperature, and the difficulty and comfort of wearing the mask when the temperature rises are very poor.

Tenth, even in pathogen free environments, increased particulate matter in the air due to environmental pollution requires protection from the frequent use of a mask.

When people go out outdoors in summer or winter, the temperature of the environment in which the people are in air is too high or too low, the people are very uncomfortable, and the requirement of regulating the temperature of the sucked air exists. This need has led to the replacement of miniature electric fans with many generations of products, but there has been a lack of a means to effectively regulate the breathing and facial air environment.

Therefore, it is necessary to change the above situation to protect the safety of people going out and to provide comfort.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a positive pressure type air supply cap which has the characteristics of sterilization, disinfection, positive pressure air supply and comfort.

The utility model discloses a realize like this: a positive pressure type air supply cap, comprising:

the front part of the body is provided with a brim, and the brim is provided with a through hole;

the air supply device is detachably arranged on the brim and comprises a shell, an air inlet and an air outlet are formed in the shell, an air supply channel is formed between the air inlet and the air outlet, an ultraviolet lamp, a filtering piece and a fan are arranged in the shell, and the ultraviolet lamp, the filtering piece and the fan are sequentially arranged along the direction of the air supply channel;

the eye protection piece is detachably arranged on the brim and extends downwards, when the positive pressure type air supply cap is worn on the head of a person, outside air enters the through hole to flow downwards after being sterilized and disinfected and filtered by the air supply channel, and the air pressure formed between the face of the person and the eye protection piece is greater than the outside atmospheric pressure.

The eye protection piece comprises a clamping edge, the clamping edge is arc-shaped, a clamping groove is formed in the inner side of the clamping edge outwards, the clamping groove is clamped on the edge of the brim, a transparent flange extends downwards from the clamping edge, and the flange covers the face, the nose and the mouth of a person.

The through hole runs through and is located the upper and lower surface of brim of a hat, just the through hole department of the lower surface of brim of a hat is provided with the air guide, the air guide corresponds the through hole.

Set up the power in the air supply unit, the ultraviolet lamp is connected to the power, filters piece, fan, sets up a first cavity, second cavity in the shell, and first cavity, second cavity are through filtering a piece isolation, first cavity has an air intake, air intake and external intercommunication, be provided with the ultraviolet lamp in the first cavity, be provided with the fan in the second cavity, the air outlet is seted up to the bottom of second cavity.

The body further comprises a cap, the brim is arranged at the front of the cap, the cap and the shell are fixed, the shell is provided with an air inlet at the side wall far away from the cap, an air outlet is formed at the bottom wall of the shell close to the brim, and the number of the through holes is two and is positioned below the air outlet.

The cap and the shell are mutually fixed through viscose, a buckle piece or buckle cloth.

The eye-protecting piece is bent downwards and towards the human body to form an arc shape.

The body further comprises a cap cover, the cap edge is arranged on the front portion of the cap cover, and a movable fastener used for sleeving the cap cover on the head and controlling tightness is arranged on the rear portion of the cap cover.

The utility model discloses an air supply device is detachably arranged on the brim, the air supply device comprises a shell, the shell is provided with an air inlet and an air outlet, an air supply channel is formed between the air inlet and the air outlet, an ultraviolet lamp, a filtering piece and a fan are arranged in the shell, and the ultraviolet lamp, the filtering piece and the fan are sequentially arranged along the direction of the air supply channel; the eye protection piece is detachably arranged on the brim and extends downwards, when the positive pressure type air supply cap is worn on the head of a person, outside air enters the through hole to flow downwards after being sterilized and disinfected and filtered by the air supply channel, and the air pressure formed between the face of the person and the eye protection piece is greater than the outside atmospheric pressure. The nose and the oral cavity of a person are inhaled with the air after sterilization, disinfection and filtration, and the air is more than the external atmospheric pressure at the nose and the oral cavity of the person, so that the air can be effectively prevented from entering the oral cavity and the nose of the person under the air holes which are not disinfected and filtered, people who go out can not wear the mask, the ears, the nose and the oral cavity of the person can be completely liberated, and the comfort is also ensured while the safety of the people going out is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view provided by the present invention;

fig. 2 is an exploded perspective view provided by the present invention;

fig. 3 is an exploded perspective view provided by the present invention;

fig. 4 is a schematic view of the gas flow direction provided by the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a positive pressure type air supply hat, including: the helmet comprises a body 1, a handle and a handle, wherein the front part of the body 1 is provided with a brim 12, and the brim 12 is provided with a through hole 13; the air supply device 2 is detachably arranged on the brim 12, the air supply device 2 comprises a shell 21, the shell 21 is provided with an air inlet 211 and an air outlet 22, an air supply channel is formed between the air inlet 211 and the air outlet 22, an ultraviolet lamp 25, a filter element 26 and a fan 27 are arranged in the shell 21, and the ultraviolet lamp 25, the filter element 26 and the fan 27 are sequentially arranged along the direction of the air supply channel; and the eye protection piece 3 is detachably arranged on the brim 12, the eye protection piece 3 extends downwards, when the positive pressure type air supply cap is worn on the head of a person, the outside air enters the through hole 13 to flow downwards after being sterilized and disinfected and filtered by the air supply channel, and the air pressure formed between the face of the person and the eye protection piece 3 is greater than the outside atmospheric pressure.

The eye protection piece 3 comprises a clamping edge 31, the clamping edge 31 is arc-shaped, a clamping groove 33 is formed in the inner side of the clamping edge 31 outwards, the clamping groove 33 is clamped on the edge of the brim 12, a transparent flange 32 extends downwards from the clamping edge 31, and the flange 32 covers the face, the nose and the mouth of a person. The transparent flange 32 can make people see the external situation, the clamping edge 31 can be clamped on the brim 12 through the clamping groove 33, the disassembly is convenient, the design is only one, for example, a zipper type design can also be provided, the zipper is pulled up to form sealing when in use, and when the flange 32 is not needed to be used, the zipper is pulled open, and the flange 32 is taken down. The transparent flange is to be noted that a design of ultraviolet protection can be used to prevent direct sunlight.

The through hole 13 penetrates the upper surface and the lower surface of the brim 12, an air guide 14 is arranged at the through hole 13 on the lower surface of the brim 12, and the air guide 14 corresponds to the through hole 13. Set up power 28 in the air supply unit 2, power 28 connects the ultraviolet lamp 25, filters piece 26, fan 27, sets up a first cavity 23, second cavity 24 in the shell 21, and first cavity 23, second cavity 24 are through filtering piece 26 isolation, first cavity 23 has an air intake 211, air intake 211 and external intercommunication, be provided with ultraviolet lamp 25 in the first cavity 23, be provided with fan 27 in the second cavity 24, air outlet 22 is seted up to the bottom of second cavity 24. The ultraviolet lamp 25 can sterilize and disinfect the gas entering the first chamber 23 by ultraviolet rays, which is also called as ultraviolet sterilization, the air after sterilization enters the second chamber 24 through the filtering element 26, the filtering element 26 is, for example, a filtering material of PM2.5, a melt-blown fabric, etc., the filtering element 26 filters the air to prevent viruses, impurities, dust, etc., and then the fan 27 sends the air after sterilization and disinfection filtration out through the air outlet 22 and enters the through hole 13, due to the existence of the air guide element 14, the gas flowing out through the through hole 13 can have directionality and uniformity, and the air guide element 14, for example, a wind guide plate, a wind guide groove, a drainage groove, etc., can realize the control of directionality and uniformity of the flowing gas, for example, the downward flowing of the gas divergence.

The body 1 further comprises a cap 11, the brim 12 is arranged at the front of the cap 11, the cap 11 is fixed with the shell 21, the shell 21 is provided with an air inlet 211 at the side wall far away from the cap 11, the shell 21 is provided with an air outlet 22 at the bottom wall close to the brim 12, and the number of the through holes 13 is two and is positioned below the air outlet 22. The external air enters from the front of the housing 21 and then flows out from the outlet port 22 at the bottom of the housing 21, flowing downward through the through-hole 13. The body still includes a cap, the brim of a hat set up in the front portion of cap, the rear portion of cap has the activity fastener that is used for locating the head and control the elasticity with the cap cover, and elasticity fastener is including adopting two ropes to fasten each other, or button and knot hole, selects different knot holes, corresponds the cap of different diameters, or adopts the form of snap ring, for example trip and collude the hole, when the buckle in colluding the hole, accomplishes the buckle.

The cap 11 and the housing 21 are fixed to each other by glue, a fastener or a fastener cloth. The shell 21 is conveniently fixed on the cap 11, if viscose glue such as glue is adopted, the buckling piece such as a clamping groove and a bulge are matched, the cloth buckling is simple, the eye protection piece 3 bends downwards and towards the human face to form an arc shape, on one hand, the eye protection piece is consistent with the shape of the face of the human, on the other hand, the resistance of the human to external wind in the advancing process can be reduced, and the downward flow of the air between the eye protection piece 3 and the human face is facilitated due to the arc design.

The blower can be classified into a centrifugal type, an axial flow type, a diagonal flow type (mixed flow type), a cross flow type, and the like according to the direction of gas flow.

(1) A centrifugal fan. The airflow enters the impeller of the fan axially and then mainly flows along the radial direction. Such fans are made according to the principle of centrifugation, products including centrifugal ventilators, centrifugal blowers and centrifugal compressors. [5]

(2) An axial flow fan. The airflow enters the impeller of the fan axially, flowing approximately on a cylindrical surface in the axial direction. Such fans include axial fans, axial blowers, and axial compressors.

(3) And (4) a rotary fan. The rotor is rotated to change the volume of the air chamber to work. Common varieties are roots blower and rotary compressor.

The fan is divided into according to the flow direction after the air current gets into the impeller: axial fans, centrifugal fans, and diagonal (mixed) flow fans. The fan of the design can adopt a fan and an air supply mode.

During the use, with power connection ultraviolet lamp 25, filter piece 26, fan 27, the power still connects control panel 29, opens the power, and ultraviolet lamp 25 lights, and fan 27 rotates, electrically controlled part, control panel control the flow, the flow direction of fan, still can add timing and temperature humidity transducer in air supply device 2, timing control fan, ultraviolet lamp operating length, humidity transducer detect the humidity of filtering the piece to promote when need change and filter the piece.

The external air enters the first chamber 23 through the air inlet 211, the air in the first chamber 23 is sterilized and disinfected, which is also called as ultraviolet sterilization, the sterilized air enters the second chamber 24 through the filter 26, the air after sterilization, disinfection and filtration is sent out through the air outlet 22 by the fan 27, the air enters the through hole 13 and flows downwards, the air pressure formed between the face of the person and the eye-protecting piece 3 is greater than the external atmospheric pressure, the external air continuously enters, the flange 32 covers the face, the nose and the mouth of the person, the sterilized and filtered air between the nose, the mouth and the flange 32 is always in a positive pressure state, namely the air pressure is greater than the external atmospheric pressure, if the pressure of the air is P1, the external air can be prevented, if the air without sterilization, disinfection and filtration flows upwards to enter the oral cavity and the nostril of the person, if the external atmospheric pressure is P0, the air pressure of the nose and the oral cavity of a person is P2, the air pressure is P1-P2 is more than P0, the state is always kept, the difference value of subtracting P2 from P1 is larger than the standard atmospheric pressure P0, the air exhaled by the oral cavity and the nose flows downwards and is timely exhausted, the air sterilized, disinfected and filtered by the outside continuously enters, and the dynamic balance is maintained. If the positive pressure air supply is not needed, the air supply device 2 and the eye protection piece 3 can be detached and flexibly used, the air supply device 2 and the eye protection piece 3 can be conveniently used in various environments, for example, the weather is hot, the air supply device 2 and the eye protection piece 3 can be detached, the air supply quantity of the fan 27 can be adjusted through the control panel 29, and the operation and the convenience and the flexibility are realized by timely adjusting according to the actual use.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A positive pressure type air supply cap, comprising:

2. A positive pressure type air feeding cap as claimed in claim 1, wherein: the eye protection piece comprises a clamping edge, the clamping edge is arc-shaped, a clamping groove is formed in the inner side of the clamping edge outwards, the clamping groove is clamped on the edge of the brim, a transparent flange extends downwards from the clamping edge, and the flange covers the face, the nose and the mouth of a person.

3. A positive pressure type air feeding cap as claimed in claim 1, wherein: the through hole runs through and is located the upper and lower surface of brim of a hat, just the through hole department of the lower surface of brim of a hat is provided with the air guide, the air guide corresponds the through hole.

4. A positive pressure type air feeding cap as claimed in claim 1, wherein: set up the power in the air supply unit, the ultraviolet lamp is connected to the power, filters piece, fan, sets up a first cavity, second cavity in the shell, and first cavity, second cavity are through filtering a piece isolation, first cavity has an air intake, air intake and external intercommunication, be provided with the ultraviolet lamp in the first cavity, be provided with the fan in the second cavity, the air outlet is seted up to the bottom of second cavity.

5. A positive pressure type air feeding cap as claimed in claim 4, wherein: the body further comprises a cap, the brim is arranged at the front of the cap, the cap and the shell are fixed, the shell is provided with an air inlet at the side wall far away from the cap, an air outlet is formed at the bottom wall of the shell close to the brim, and the number of the through holes is two and is positioned below the air outlet.

6. A positive pressure type air feeding cap as claimed in claim 1, wherein: the cap and the shell are mutually fixed through viscose, a buckle piece or buckle cloth.

7. A positive pressure type air feeding cap as claimed in claim 1, wherein: the eye-protecting piece is bent downwards and towards the human body to form an arc shape.

8. A positive pressure type air feeding cap as claimed in claim 1, wherein: the body further comprises a cap cover, the cap edge is arranged on the front portion of the cap cover, and a movable fastener used for sleeving the cap cover on the head and controlling tightness is arranged on the rear portion of the cap cover.