CN212383103U

CN212383103U - Positive pressure elastic protective hood

Info

Publication number: CN212383103U
Application number: CN202020216167.2U
Authority: CN
Inventors: 杨勋
Original assignee: Suzhou Lixiang Eye Hospital Co ltd
Current assignee: Suzhou Lixiang Eye Hospital Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2021-01-22
Anticipated expiration: 2030-02-26

Abstract

The positive-pressure elastic protective hood comprises a hood body, an air guide pipe and an air pressurizing and purifying device, wherein the upper end of the air guide pipe is arranged in the hood body, and the lower end of the air guide pipe is connected with the air pressurizing and purifying device; the head cap body comprises a cover shell, a neck limiting sealing band, a transparent lower hem, a visual window, a forehead fixing support and a side transparent air storage bag; the side transparent air storage bag is formed by a thin film and is positioned at the side or the rear part of the cover shell, when the air pressure in the air storage chamber is reduced to a certain value, the air storage chamber is inwards compressed by the external atmospheric pressure, and when the side transparent air storage bag is used, the elastic thin film resilience force at the position maintains that the positive pressure is always kept in the hood and the air pressure in the hood is indicated through the size change of the air storage chamber; the air pressurizing and purifying device comprises a battery pack, a filter, an exhaust fan set and an electric control board, and supplies air to the inside of the hood through an air duct. The adoption head cover is interior mechanical pressurization and is injected into filterable clean air, avoids virus to get into respiratory infection user, and transparent gas storage bag size change indicates reliably whether the air pressure is suitable in the head cover, has improved the security.

Description

Positive pressure elastic protective hood

Technical Field

The utility model relates to a medical treatment protective articles field, concretely relates to malleation elasticity protection hood.

Background

As is well known, new infectious germs have appeared in recent years, and the transmission route thereof can be mediated by human-to-human droplets and aerosols, and thus the demand for protection has been increasing. The outbreaks of virulent infectious diseases, such as the well-known SARS and ebola, as well as the new type of coronavirus that has recently emerged, present a significant risk to first-line medical personnel. At present, medical care personnel mainly rely on a mask and protective glasses, sometimes a protective screen and protective clothing are added, and a totally-enclosed chemical protective clothing is used. Although protective clothing can provide comprehensive protection, it is very expensive, complex, time-consuming and extremely uncomfortable to wear and take off, and is suitable for protecting phosgene, nuclear radiation dust and other physical and chemical injuries (the filtered air is injected into the interior of the protective clothing to maintain the internal positive pressure, protect the skin of the whole body from contacting harmful substances, and prevent the harmful substances from being inhaled through the respiratory tract), but the protective clothing is somewhat excessive or even causes waste for respiratory tract diseases mainly depending on air transmission. However, even if a protective screen or protective clothing is added to the mask or protective glasses, the mask or protective glasses cannot completely prevent extremely fine pathogens (such as viruses) from being inhaled from gaps of the mask or protective glasses, and the transmission paths of aerosols and the like are difficult to block.

In order to solve the technical problems, positive pressure hoods are also available in reality to prevent the spread of airborne diseases and protect people working in dirty air, but the existing positive pressure hoods are either very complex, maintain positive pressure by using very large flow of air flow, have short endurance time of power supply maintenance, and make the tongue and eyes of a user dry quickly; or the air flow is insufficient, particularly the internal pressure is reduced during air suction, an accurate barometer is required to monitor at any time, and the structure is complex. Meanwhile, the tidal fluctuation of the demand of the gas in the existing hood during exhalation and inhalation and the challenge of always maintaining the internal positive pressure are also formed, the excessive gas flow is difficult to lose the internal positive pressure and is difficult to blow, the endurance time of the equipment is also shortened, the adopted real-time barometer is complex and unreliable in monitoring, the problems that the gas supply amount is basically unchanged, the gas demand amount fluctuates greatly and the positive pressure is kept at the lowest level are solved, and the problem that the prior portable equipment is difficult to solve is solved.

Therefore, it is urgent to protect people who need to contact with the infectious germs at a short distance effectively.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the positive pressure elastic protection hood is provided, filtered clean air can be simply and conveniently injected into the relatively closed hood through mechanical pressurization, viruses are completely prevented from entering respiratory tract infection, if the air supply quantity extracted by an air extractor is just enough when a wearer inhales, air in an air storage chamber can be smoothly supplemented under the double effects of air pressure and elastic film resilience force for the wearer to inhale, the internal air pressure rises when the wearer exhales, the elastic film resilience force is outwards bounced, and the air in the air storage chamber is increased for next inhalation. As long as the gas receiver does not excessively reduce, the elastic film of the transparent gas receiver of side position is not by outside atmospheric pressure inwards flat, thereby can guarantee the inside malleation of hood and avoid outside harmful substance to get into the respiratory track to can only lean on the big or small shape change of the transparent gas receiver of side position just give the instruction whether suitable of very obvious atmospheric pressure, indicate the hood internal gas pressure whether suitable very simply reliably, improve security and comfort level.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a positive-pressure elastic protective hood comprises a hood body, an air guide pipe and an air pressurizing and purifying device, wherein the upper end of the air guide pipe is arranged in the hood body, and the lower end of the air guide pipe is connected with the air pressurizing and purifying device;

the head cap body comprises a cover shell, a neck limiting sealing band, a transparent lower hem, a visual window, a forehead fixing support and a side transparent air storage bag; the hood is made of elastic materials, the bottom edge of the hood is connected with a transparent lower hem to the periphery, a neck limiting sealing strip is arranged at the joint of the transparent lower hem and the hood, and air in the hood can flow out along a gap at the joint; the front part of the housing is provided with a high-transparency visual window, the lateral position of the housing is expanded and protruded at the lateral side of the head of a wearer to form a lateral transparent air storage bag made of soft elastic materials, and an air storage chamber is formed in the lateral transparent air storage bag; the whole side transparent air storage bag is formed by an elastic film, the air pressure in the air storage chamber can be reduced to be smaller than the external atmospheric pressure, the side transparent air storage bag is shriveled, the resilience force of the elastic film at the side transparent air storage bag is used for keeping the positive pressure in the hood all the time and indicating the air pressure in the hood through the size change of the air storage chamber;

the forehead fixing and supporting piece comprises an arc-shaped forehead hoop and an upper support Y-shaped pipe, the upper support Y-shaped pipe comprises a connecting pipe and two bending pipes which are hollow structures, the front ends of the two bending pipes are bent downwards, the front ends of the two bending pipes are forked and inserted into the arc-shaped forehead hoop downwards, and the front surface of the arc-shaped forehead hoop is internally attached and fixed on the inner surface of the housing above the visible window; the rear ends of the two bending pipes are closed and connected with the front end of the connecting pipe, and the rear end of the connecting pipe is connected with the upper end of the air guide pipe;

the air pressurizing and purifying device comprises a battery pack, a filter and an exhaust fan set which are arranged in a containing box, and the top of the containing box is also provided with an electric control plate; the filter is arranged at the air inlet of the air suction fan set, and the air outlet of the air suction fan set is hermetically connected with the lower end of the air guide pipe; the electric control board is respectively electrically connected with the battery pack and a driving motor of the exhaust fan group; the control circuit on the back of the air exhaust unit and the back of the electric control board are positioned in the same main case, an ultraviolet lamp with a disinfection function is arranged in the main case, and the ultraviolet lamp is automatically or manually turned on to disinfect the inside of the main case when the air exhaust unit is used or after the air exhaust unit is used each time.

Preferably, the whole side face of the side transparent air storage bag is made of a flexible film, at least one elastic strip is covered on the flexible film, the resilience force of the flexible film maintains that positive pressure is always kept in the head cover, and the air pressure in the head cover is indicated through the size change of the air storage chamber.

Preferably, the exhaust fan group comprises two air pumps and two driving motors, the two air pumps and the two driving motors are respectively connected in parallel between the filter and the air inlet of the air guide pipe, and a one-way regulating valve is arranged on the air guide pipe close to the upper part of the exhaust fan group.

Preferably, a pressure sensor is arranged in the air storage chamber, the pressure sensor is in signal connection with the electronic control board and can transmit a pressure signal sensed in the air storage chamber to the electronic control board, and the electronic control board controls the driving motor to increase and decrease the speed to adjust the air inflow of the filter; be equipped with group battery low-power detection module on the automatically controlled board, the visual window is close to its above side and is equipped with audible-visual annunciator, audible-visual annunciator with automatically controlled board electricity is connected to group battery low-power detection module feeds back the detected signal to automatically controlled board when the group battery is low-power, and automatically controlled board drive audible-visual annunciator work sends audible-visual signal and reminds the person of wearing.

Preferably, the part of the air duct, which is positioned in the cover casing, is attached to the inner surface of the cover casing close to the rear of one side of the cover casing, and the air duct extends upwards from the back of one side of the ear and is connected to the rear end of the connecting pipe when the air duct is worn by a person.

Preferably, the electronic control board is provided with a wireless communication positioning module, the other side edge of the visible window close to the upper side of the visible window is provided with a micro headset microphone, and the micro headset microphone can be interconnected with an external intelligent command system through the wireless communication positioning module by adopting WiFi.

Preferably, the side transparent gas reservoir is located at the side or rear of the housing.

Through the technical scheme, the utility model discloses can avoid the person of wearing to exhale and when breathing in to the undulant influence of morning and evening tides formula of gas demand in the hood, make and maintain inside malleation throughout in the hood, can not like the hood in the past adopt too big air current to blow the person of wearing uncomfortable for guaranteeing the inside malleation of hood. The positive pressure elastic protection hood can simply and conveniently inject filtered clean air into the relatively closed hood through mechanical pressurization, viruses are completely prevented from entering respiratory tract infection, the positive pressure elastic protection hood is simple and easy to implement and convenient to carry, the endurance time of the device can be prolonged to a great extent under the condition that the device uses the same electric quantity as the previous similar device, and the positive pressure elastic protection hood can also be applied to other occasions, such as a biological laboratory and a high-dust workshop. If the air supply amount extracted by the air extractor is just enough when the wearer inhales, the air in the air storage chamber can be smoothly supplemented under the double effects of air pressure and elastic film resilience force to be inhaled by the wearer, the internal air pressure rises when the wearer exhales, the elastic film resilience force is outwards bounced, and the air in the air storage chamber is increased to be inhaled next time. As long as the reservoir does not excessively reduce, the elastic film of the transparent reservoir bag of side position is not by outside atmospheric pressure inwards flat, just can guarantee the inside malleation of hood in order to avoid outside harmful substance to get into the respiratory track, and can only lean on the big or small shape change of the transparent reservoir bag of side position just to give the instruction whether suitable of very obvious atmospheric pressure, the reservoir diminishes when atmospheric pressure is lower slightly, the elastic film of the transparent reservoir bag of side position is by outside atmospheric pressure inwards flat, its change can all be seen to colleagues in the distance even, indicate the hood internal gas pressure whether suitable very simply and reliably, the security and the comfort level of wearing have been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 creative efforts.

FIG. 1 is a diagram illustrating an exemplary embodiment of a positive pressure elastic protective hood;

fig. 2 is a schematic structural view of a positive pressure elastic protective hood according to an embodiment of the present invention;

FIG. 3 is a view showing the use state of the positive pressure elastic protective head cover according to the embodiment of the present invention when the side transparent air reservoir is deflated;

fig. 4 is a diagram of a usage status of the positive pressure elastic protective head cover with elastic strips according to an embodiment of 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 efforts belong to the protection scope of the present invention.

The present invention will be described in further detail with reference to examples and embodiments.

Examples are given.

As shown in fig. 1-3, a positive pressure elastic protective hood comprises a hood body, an air duct 1 and an air pressurizing and purifying device, wherein the upper end of the air duct 1 is arranged inside the hood body, and the lower end of the air duct is connected with the air pressurizing and purifying device;

the head cap body comprises a cover shell 2, a neck limiting sealing band 3, a transparent lower hem 4, a visible window 5, a forehead fixing support 6 and a side transparent air storage bag 7; the hood 2 is made of elastic materials, the bottom edge of the hood is connected with a transparent lower hem 4 to the periphery, a neck limiting sealing strip 3 is arranged at the joint of the transparent lower hem 4 and the hood 2, and air in the hood can flow out along a gap at the joint; the front part of the housing 2 is provided with a high-transparency visual window 5, the housing 2 is expanded and protruded towards the side part of the head of a wearer to form a side transparent air storage bag 7 made of soft elastic materials, and an air storage chamber is formed in the side transparent air storage bag 7; the whole side transparent air storage bag 7 is formed by an elastic film, and can ensure that the air pressure in the air storage chamber is shriveled when the air pressure is reduced to be less than the external atmospheric pressure, and the resilience force of the elastic film at the side transparent air storage bag maintains the positive pressure in the hood all the time and indicates the air pressure in the hood through the size change of the air storage chamber when in use;

the forehead fixing and supporting piece 6 comprises an arc-shaped forehead hoop 61 and an upper supporting Y-shaped pipe 62, the upper supporting Y-shaped pipe 62 comprises a connecting pipe and two bending pipes which are hollow structures, the front ends of the two bending pipes are bent downwards, the front ends of the two bending pipes are forked and inserted into the arc-shaped forehead hoop 61 downwards, and the front surface of the arc-shaped forehead hoop 61 is internally stuck and fixed on the inner surface of the housing 2 above the visual window 5; the rear ends of the two bending pipes are closed and connected with the front end of the connecting pipe, and the rear end of the connecting pipe is connected with the upper end of the air duct 1;

the air pressurizing and purifying device comprises a battery pack 9, a filter 10 and an air extractor unit 11 which are arranged in a containing box, and the top of the containing box is also provided with an electric control board 12; the filter 10 is arranged at an air inlet of the air suction fan set 11, and an air outlet of the air suction fan set 11 is hermetically connected with the lower end of the air guide pipe 1; the battery pack 9 can be powered by a UPS system, is not powered off when the battery is replaced, and is provided with a USB interface so as to be charged at any time. The electric control board 12 is electrically connected with the battery pack 9 and the driving motor of the exhaust fan set 11 respectively; the control circuits on the back sides of the air exhaust unit 11 and the electric control board 12 are positioned in the same main case 18, an ultraviolet lamp 19 with a disinfection function is arranged in the main case, and the ultraviolet lamp 19 is automatically or manually turned on to disinfect the inside of the main case 18 in each use or after use.

Of course, for better optimization and improvement of the technical solution, the whole side of the side transparent air reservoir 7 can also be made of a flexible film, as shown in fig. 4, the flexible film is covered with an elastic strip 8, and the resilience force of the flexible film maintains the positive pressure in the head cover all the time and indicates the air pressure in the head cover through the size change of the air reservoir.

Meanwhile, in order to avoid the accidental stop of a single air pump and a driving motor, the air pumping unit 11 comprises two air pumps and two driving motors, the two air pumps and the two driving motors are respectively connected in parallel between the filter 10 and the air inlet of the air duct 1, and once the accidental stop of the single air pump or the driving motor occurs, the other air pump or the driving motor can work independently and maintain for a period of time.

In order to enable the wearer to manually adjust the air inlet amount according to the actual use condition, a one-way adjusting valve 15 is further arranged above the air guide pipe 1 close to the air suction fan set 11.

The air storage chamber is internally provided with a pressure sensor 13, the pressure sensor 13 is in signal connection with the electric control board 12 and can transmit a pressure signal sensed in the air storage chamber to the electric control board 12, and the electric control board 12 controls the increase and decrease speed of the driving motor to adjust the air input of the filter so as to ensure that the air pressure in the air storage chamber is stably supplied to a wearer. When this malleation elasticity protection hood uses in batches in the hospital, can also be equipped with intelligent command control system in the hospital to with this malleation elasticity protection hood technical upgrade, set up wireless communication orientation module on automatically controlled board 12, be close to another side of its top at visual window 5 simultaneously and set up miniature earphone microphone 16, miniature earphone microphone 16 accessible wireless communication orientation module adopts wiFi and outside intelligent command system interconnection, so that outside command center can in time know equipment working conditions such as position, fan that the person of wearing locates or the matter of mating agencies, also can artifical warning the user of wearer to the behavior of protection hood, the person of wearing has emergency simultaneously and also can report to command center.

In addition, the part design laminating that is located the air duct 1 in the housing 2 is in on the internal surface that housing 2 one side leaned on the back to air duct 1 extends upwards from one side ear after the people wears, in order to make things convenient for the wearer to lie down, avoids causing the extrusion to air duct 1. Be equipped with group battery low-battery detection module on automatically controlled board 12, but visual window 5 is close to its above side and is equipped with audible-visual annunciator 14, audible-visual annunciator 14 with automatically controlled board 12 electricity is connected to group battery low-battery detection module feeds back the detected signal to automatically controlled board 12 when the group battery is low-battery, and automatically controlled board 12 drive audible-visual annunciator 14 work sends audible-visual signal and reminds the person of wearing to in time leave the workplace and change the group battery or charge.

It should be emphasized that the side transparent air reservoir 7 may be designed to be located on one side or the rear of the housing 2, or on both sides or the rear, which falls within the scope of the present invention.

Because this positive pressure head cover is equipped with the transparent gas reservoir bag of side position 7 and is the shaping of elastic film material, and the inner chamber is as its gas reservoir that adjusts the inside atmospheric pressure of airflow and support, can provide extra air feed pressure through elastic film's resilience force when breathing in, supplements the gas reservoir tolerance when exhaling. As long as the transparent gas storage bag of side position 7 is indeformable, just can guarantee the inside malleation of hood, the big or small shape change of gas storage chamber simultaneously also is the reliable instruction of inside atmospheric pressure, if diminish, the inspection neck gap and get rid of after the too big problem in gap can, the user can improve the air feed volume through adjusting 15 one-way adjusting valves. If the size of the air reservoir is not changed at all during breathing, indicating that the air supply is excessive, the one-way regulating valve 15 can be appropriately adjusted to reduce the air supply amount, so as to improve the comfort and prolong the service life of the battery.

In this case, the present invention can avoid the tidal fluctuation of the air demand in the hood when the wearer exhales and inhales, so that the inside positive pressure is always maintained in the hood, and the wearer is not inconvenienced by using too large air flow to ensure the inside positive pressure of the hood. The positive pressure elastic protective hood can simply and conveniently inject filtered clean air into the relatively closed hood through mechanical pressurization, so that viruses are completely prevented from entering respiratory tract infection, the whole head is prevented from being polluted (including eyes and auditory canals, even the inconvenience of frequent hair washing or timely head shaving is avoided), the positive pressure elastic protective hood is simple and easy to operate and convenient to carry, the duration of the device can be prolonged to a great extent under the condition that the device uses the same electric quantity as the previous similar device, and the positive pressure elastic protective hood can also be applied to other occasions, such as a biological laboratory and a high-dust workshop. Can be relatively simple and convenient through the mechanical pressurization injection process filterable clean air to relative inclosed hood, avoid the virus to get into respiratory infection completely, if the air supply volume of air pump unit 11 extraction just enough when the wearer breathes in, gaseous can supply smoothly under the dual function of atmospheric pressure and air pump unit 11 and supply the wearer to inhale in the gas storage, if the air supply volume of air pump extraction just enough when the wearer breathes in, gaseous can supply smoothly under the dual function of atmospheric pressure and elastic film resilience in the gas storage and supply the wearer to inhale, the inside atmospheric pressure rises the outer bullet of elastic film resilience when the wearer exhales, gaseous increase in the gas storage supplies to breathe in next time. As long as the reservoir does not excessively reduce, the elastic film of the transparent reservoir bag of side position 7 is not by outside atmospheric pressure inwards shriveled, just can guarantee the inside malleation of hood in order to avoid outside harmful substance to get into the respiratory track, and can only lean on the big or small shape change of the transparent reservoir bag of side position just to give the instruction whether suitable of very obvious atmospheric pressure, the reservoir chamber diminishes when atmospheric pressure is lower slightly, the elastic film of the transparent reservoir bag of side position is by outside atmospheric pressure inwards shriveled, even its change can all be seen to colleagues in a distance, indicate the hood internal gas pressure whether suitable very simply reliably, the security and the comfort level of wearing have been improved. In actual use, the containing box can be fixed on a waistband 17 of a wearer, so that the battery pack 9, the filter 10 and the exhaust fan set 11 in the containing box and the electric control board 12 at the top of the containing box can be fixed on the waist of the wearer, the wearer can conveniently move and wear the containing box, the wearer is prevented from being influenced during working, and the wearing safety and the wearing comfort are greatly improved.

The above description is only the preferred embodiment of the positive pressure elastic protective hood of the present invention, and it should be noted that, for those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, and all of them belong to the protection scope of the present invention.

Claims

1. A positive-pressure elastic protective hood is characterized by comprising a hood body, an air guide pipe and an air pressurizing and purifying device, wherein the upper end of the air guide pipe is arranged in the hood body, and the lower end of the air guide pipe is connected with the air pressurizing and purifying device;

2. The elastic protective hood with positive pressure according to claim 1, wherein the transparent side air reservoir is made of a flexible film covered by at least one elastic strip, and the elastic force of the elastic strip maintains the positive pressure inside the hood and indicates the air pressure inside the hood by the size change of the air reservoir.

3. The positive pressure protective hood according to claim 2, wherein said blower unit comprises two suction pumps and two driving motors, and said two suction pumps and said two driving motors are respectively connected in parallel between said filter and said air inlet of said air duct, and a one-way regulating valve is provided on said air duct near the top of said blower unit.

4. The positive pressure elastic protective hood according to claim 3, wherein a pressure sensor is arranged in the air reservoir, the pressure sensor is in signal connection with the electronic control board and can transmit a pressure signal sensed in the air reservoir to the electronic control board, and the electronic control board controls the driving motor to increase or decrease the speed to adjust the air intake quantity of the filter; be equipped with group battery low-power detection module on the automatically controlled board, the visual window is close to its above side and is equipped with audible-visual annunciator, audible-visual annunciator with automatically controlled board electricity is connected to group battery low-power detection module feeds back the detected signal to automatically controlled board when the group battery is low-power, and automatically controlled board drive audible-visual annunciator work sends audible-visual signal and reminds the person of wearing.

5. The hood according to claim 4, wherein the portion of the tube within the hood fits against the inside surface of the hood behind one side of the hood, and the tube extends upwardly from one side of the ear and connects to the rear end of the connecting tube when worn by a person.

6. The positive pressure elastic protective hood according to claim 5, wherein the electric control board is provided with a wireless communication positioning module, the other side of the visual window near the upper side of the visual window is provided with a micro-earphone microphone, and the micro-earphone microphone can be interconnected with an external intelligent command system through the wireless communication positioning module by adopting WiFi.

7. A positive pressure resilient protective hood according to any one of claims 1 to 6, wherein said side transparent reservoir is located at the side or rear of said hood.