CN112569494A - Active antibacterial protective face screen, active antibacterial fluid purification device and method - Google Patents

Abstract

The invention relates to an active bacteriostatic protective face screen which at least comprises a fixed main body and a face screen, wherein at least one cavity is arranged in the fixed main body, a first through hole and a second through hole which are communicated with the cavity are arranged on the fixed main body, at least one sterilization structure consisting of a sterilization slow-release body and at least one gas regulating device are arranged in the cavity, the sterilization structure is arranged on a flow path for airflow flowing between the first through hole and the second through hole, and under the condition that the gas regulating device regulates gas in a blowing and/or pressurizing mode according to the mode that the gas flows to the second through hole through the sterilization structure, the gas and sterilization substances slowly released by the sterilization structure are mixed and flow out from the second through hole in a micro-positive pressure mode relative to the external environment, so that the gas on the inner side of the face screen and the surrounding gas surround to form a micro-positive pressure sterile gas area. Through the cooperation of the sterilization slow release body and the air conditioning device, a micro-positive pressure sterile gas environment is formed, and air with viruses is prevented from being inhaled.

Description

Active antibacterial protective face screen, active antibacterial fluid purification device and method

Technical Field

The invention relates to the technical field of disinfection and protection, in particular to an active antibacterial protection face screen and a protection method. The invention also relates to the technical field of fluid sterilization and purification, and relates to an active bacteriostatic fluid purification device and method.

Background

It has become a popular requirement to disinfect the environment in which it is located so as to breathe fresh, clean and virus-free air. However, since the human body is in a moving state, it is inconvenient to improve the environment, and the improvement of the environment by the portable sterilizing apparatus is popular.

For example, patent document CN111544790A discloses a head protection cover, which includes an air supply device and a rectifying device located on both sides of the head, wherein the air supply device provides a pressure air flow for the rectifying device, the rectifying device includes an air inlet and an air outlet, the air outlet is radially arranged around the head by taking the rectifying device as a center, the air flow ejected from the air outlets of the two rectifying devices on both sides of the head forms an air curtain cover surrounding the head, and the air flow of the air curtain provides clean air for breathing and can effectively protect other parts of the head to prevent the head from being exposed to the air containing harmful substances. The air curtain does not influence the driving force of the wearer, is breathable, does not influence the sight line and is comfortable to experience. Although the invention can provide fresh air to some extent, it cannot sterilize the air into clean air without viruses. When the user is in an environment with high density distribution of viruses, the flowing air cannot be completely sterilized and purified.

Therefore, there is a need for a protective cover that can sterilize and purify air to eliminate viruses.

Patent document CN111111036A discloses a positive pressure air purification protective cover and method, which is characterized in that the protective cover comprises a positive pressure air curtain pipeline and an air suction pipeline, wherein the positive pressure air curtain pipeline is arranged at the forehead part of a human face, the positive pressure air curtain pipeline discharges air with certain pressure to form an air curtain, and the air curtain constructs an isolation belt in front of the face part of the human face to block the contact of pollutants or germs in the outside air with the human body; the air outlet of the air suction pipeline is arranged at the oral cavity part of the human face, and the purified and sterilized clean air is supplied to the human body for breathing through the air suction pipeline. The protective cover is provided with a breathing pipeline and a positive pressure air curtain pipeline, purified and sterilized air provides sucked clean air for a human body through the breathing pipeline, and meanwhile, a positive pressure air curtain is formed through the positive pressure air curtain pipeline to isolate external air pollutants. The air treatment device comprises an air inlet, a sterilization chamber, an ultraviolet irradiation chamber, a catalyst box body and an air outlet which are communicated in sequence, wherein an air pump provides power for air circulation, and the air outlet conveys treated purified air to a positive pressure air curtain pipeline and an air suction pipeline through a connecting pipeline. An ozone generator is arranged in the sterilization chamber. The invention realizes the elimination and cleaning of viruses by ozone and ultraviolet sterilization, and can realize the air sterilization and the purpose, but the invention still has the defects that the device has a complex structure and needs a larger accommodating space, so that the gas of the protective cover is heavy and heavy, and the health of cervical vertebra, shoulder and neck and other parts is not good for workers to wear for a long time. Moreover, the air pump, the ozone generating device and the ultraviolet sterilization in the invention need a large amount of power supply support, so that the volume of the battery is increased, the weight of the battery is increased, and the health of a user is not facilitated. Furthermore, the air pump, the ozone generating device and the ultraviolet sterilization in the protective cover can emit heat in the sterilization process, so that the protective cover is not beneficial to being worn by a user in summer and being worn for a long time.

Therefore, how to provide a protective cover which is light in weight, convenient to carry and low in energy consumption is a technical problem to be solved.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an active antibacterial protective face screen, which at least comprises a fixed main body and a face screen, wherein at least one cavity is arranged in the fixed main body,

the fixed main body is provided with a first through hole and a second through hole which are communicated with the cavity,

at least one sterilization structure consisting of a sterilization slow-release body and at least one gas regulating device are arranged in the cavity,

the sterilization structure is disposed on a flow path of the airflow flowing between the first through hole and the second through hole,

in case the gas regulating means regulates the gas in a blowing and/or pressurizing manner through the sterilization structure and to the second through hole,

the fluid mixes with the sterilizing substance released slowly by the sterilizing structure and flows out of the second through hole in a manner that a slight positive pressure exists with respect to the external fluid environment.

According to the invention, various sterilization structures formed by the sterilization slow-release bodies are arranged in the fixing main body, so that the weight of the fixing main body is reduced, heat is radiated, and simultaneously virus sterilization of gas can be realized, so that a user can avoid inhaling virus-carrying gas in the process of wearing the protective face screen, and the body health of the user is protected.

Preferably, the inclination angle of the second through holes is set in a manner that gas flows towards the position of the panel, wherein the gas in the second through holes in the range of the inner side surface of the panel flows along the longitudinal direction of the panel, and the gas in the second through holes at two sides of the panel flows towards the panel in an inclined manner and/or flows around the head, so that the gas at the inner side surface of the panel and the gas at two sides of the panel surround to form a sterile gas area with micro-positive pressure. The invention separates the area around the face from the unpurified area which can carry virus by the formation of the micro-positive pressure area, thereby ensuring the sanitation of the inhaled air.

Preferably, the sterilization structure is arranged in the cavity in a sterilization slow-release layer mode and forms a flow passage for gas to pass through; or the sterilization structure is provided with several filtering holes allowing the passage of gas.

Preferably, at least one flow channel allowing gas to pass through is arranged in the sterilization structure, and the gas regulating device is arranged at an inlet of the flow channel, in the flow channel and/or at an outlet of the flow channel.

Preferably, the width of the flow channel is changed in a gradually narrowing trend so that the pressure of the gas is increased. The gas pressure is automatically increased in the flowing process of the gas through the shape of the flow channel, so that the gas is in a micro-positive pressure state when flowing out.

Preferably, the flow channel in the cavity is streamlined, and at least one mixed flow structure with a streamlined outline is arranged in the flow channel, the outline of the flow channel is adapted to the mixed flow structure, and the mixed flow section between the two mixed flow structures is arranged in a trend that the width of the flow channel becomes narrow, so that the gas is subjected to at least one time of flow splitting and at least one time of mixed flow in the flow channel based on the streamlined outline of the mixed flow structure, and the gas is sufficiently mixed with the sterilizing substance slowly released by the sterilizing structure. The sterilization structure may locally release more sterilization substance and less sterilization substance. Thus, the sterilizing substance within the gas in the bypass flow path may be non-uniform, with difficulties resulting in portions of the gas not being contacted by the sterilizing substance and being lost. The gas is separated and mixed again through the mixed flow structure, which is beneficial to the full mixing and contact of sterilization substances in different gases, thereby leading the gas to completely achieve virus sterilization and forming virus-free gas.

Preferably, the contour of the gas outlet of the streamlined flow channel is arranged according to the convergence tendency of the pressure of the pressurized gas. The gas outlet of the flow channel is reduced, so that the gas can flow out at a higher pressure when flowing out, and the existence of micro-pressure is ensured.

Preferably, the cavity includes drainage chamber and diffusion chamber, the drainage intracavity is provided with at least one sterilization structure that has the runner, fluid regulating device sets up the upper reaches of the runner entry of sterilization structure, in the runner and/or the low reaches of runner export, the diffusion chamber with runner export link up, wherein, runner export with the second through-hole is in order to hinder the dislocation mode setting that gas directly flowed out for the aseptic gas that flows out in the runner is in diffusion intracavity diffusion mixed flow position and flow out from the second through-hole with the mode of slight positive pressure. Through the setting of diffusion chamber, be favorable to gas to carry out intensive mixing and disinfect before the outflow, also be favorable to carrying out the pressure boost through gas regulating device under the not enough condition of little atmospheric pressure.

The invention also provides an active antibacterial fluid purification device, which at least comprises a shell, wherein at least one cavity is arranged in the shell, and the active antibacterial fluid purification device is characterized in that the shell is provided with a first through hole and a second through hole which are communicated with the cavity, at least one sterilization structure consisting of a sterilization slow release body and at least one fluid regulating device are arranged in the cavity, the sterilization structure is arranged on a flow path for fluid flowing between the first through hole and the second through hole, and under the condition that the fluid regulating device regulates the fluid in a guiding and/or pressurizing way according to the way of flowing through the sterilization structure to the second through hole, the fluid and sterilization substances released slowly by the sterilization structure are mixed and flow out from the second through hole in a way of having micro positive pressure relative to the external fluid environment. The fluid purification device of the invention can purify the fluid in the surrounding environment of the device, and can be used for purifying air and liquid.

The invention also provides an active antibacterial fluid purification method, which is characterized by at least comprising the following steps: a first through hole and a second through hole which are communicated with the inner cavity of the shell are arranged on the shell,

the cavity is internally provided with at least one sterilization structure consisting of a sterilization slow release body and at least one fluid regulating device, the sterilization structure is arranged on a flow path of fluid flowing between the first through hole and the second through hole, and under the condition that the fluid regulating device guides and/or pressurizes the fluid to pass through the sterilization structure and flow to the second through hole, the fluid is mixed with sterilization substances released slowly by the sterilization structure and flows out of the second through hole in a mode of micro positive pressure relative to the external fluid environment. The fluid purification method has the advantages of light weight, low energy consumption, convenient movement and good fluid purification effect, and is also suitable for disinfection and prevention of medical units.

Drawings

FIG. 1 is a schematic cross-sectional structural view of one embodiment of the present invention;

FIG. 2 is a cross-sectional structural schematic of one embodiment of the present invention;

FIG. 3 is a schematic view of one of the overall structures of the present invention;

FIG. 4 is a schematic diagram of one arrangement of the sterilization release body of the invention;

FIG. 5 is a schematic diagram of one arrangement of the sterilization release body of the invention;

FIG. 6 is a schematic structural view of a second housing of the present invention;

FIG. 7 is a partial schematic view of one arrangement of the sterile sustained release body of the present invention;

fig. 8 is a partially enlarged view of the flow mixing structure of the present invention.

List of reference numerals

10: a first housing; 20: sterilizing the sustained-release body; 21: a flow channel; 22: a mixed flow structure; 30: a gas conditioning device; 40: a cavity; 41: a drainage lumen; 42: a diffusion chamber; 50: a second housing; 60: a first through hole; 70: a second through hole; 71: an edge via hole; 72: a non-edge via; 80: a face screen.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

The sterilization slow-release body in the invention is an object capable of releasing chlorine dioxide gas. The sterilization slow release body at least comprises the following raw materials in percentage by mass: 30-55% of solid acid, 30-45% of sodium chlorite, 15-25% of slow release agent and 2-15% of filling agent.

Preferably, the sterilization slow release body comprises the following raw materials in percentage by mass: 40-45% of solid acid, 40% of sodium chlorite, 20-22% of slow release agent and 5-8% of filling agent.

Preferably, the solid acid is one of citric acid, oxalic acid, sodium bisulfate, sodium dihydrogen phosphate or ferric chloride.

Preferably, the slow release agent is one of sodium chloride and anhydrous sodium sulfate.

Preferably, the filler is one of perlite powder or expanded vermiculite powder, and the main body of the filler is a lightweight porous mineral filler.

The sterilization slow release body can continuously and slowly release a sterilization substance, namely chlorine dioxide gas, to sterilize and disinfect the gas, and has the advantages that:

(1) the lasting time is long, the disinfection is carried out continuously for 24 hours, and the drug effect can last for 7 to 15 days;

(2) high-efficiency sterilization, wherein 1 sterilization slow-release body exists per 100 cubic meters to effectively kill bacteria, fungi, viruses, mycoplasma and the like;

(3) does not cause 'three causes', namely carcinogenesis, teratogenesis and mutagenesis;

(4) can realize the disinfection of the belt animals;

(5) the oxygen is increased and the deodorization can be realized, the effect can be realized after 2 hours, and whether the sterilization effect is continuously and effectively can be judged according to the change of the odor in the environment;

(6) the metal equipment is not corroded when the device is correctly operated and used;

(7) the sterilization is thorough, no dead angle is left, the epidemic situation horizontal propagation chain can be effectively cut off, and the epidemic situation protective wall is constructed.

The sterilization slow-release body can be arranged into a sterilization slow-release layer, a sterilization slow-release block, a sterilization slow-release flow channel and other specific structures and is arranged at each position in the fixed main body.

Example 1

Aiming at the defects of the prior art, the invention provides an active antibacterial protective face screen. The active antibacterial protective face screen at least comprises a fixed main body and a face screen 80. As shown in fig. 1 to 3, the fixing body is rotatably coupled to the panel to adjust a rotation angle of the panel. The fixing body is fixed on the head by at least one fixing band.

As shown in fig. 1 to 2, the fixing body includes a first housing 10 and a second housing 50. The first housing 10 is an outer structure of the fixed body, and does not contact with the head surface. The second housing 50 is an inner structure of the fixed body, and is in contact with the head surface.

At least one cavity 40 is provided between the first and second housings. At least one sterilization structure consisting of a sterilization release body and at least one gas regulating device 30 are arranged in the cavity 40. Preferably, the first housing 10 and/or the second housing 50 are further provided with at least one first through hole 60 communicating with the cavity for inflow of gas into the cavity. The second housing 10 and/or the second housing 50 is further provided with at least one second through hole 70 communicating with the cavity for gas to flow out of the cavity.

In order to facilitate the gas to flow out toward the panel to form a gas atmosphere of the sterilizing gas, the gas direction is a one-way flow from the first through holes 60 to the second through holes 70. Therefore, the first through hole is disposed at a position of the fixing body near the posterior brain of the head. For example, the first through hole is provided in a central region of the first housing. Areas near the hindbrain, etc. The second through-hole 70 is provided in the vicinity of the face screen 80. Preferably, the plurality of second through holes are located close to the face. For example, a plurality of second through holes are arranged around the position of the face screen.

The gas regulating device 30 is configured to promote the gas to flow from the first through hole to the second through hole and form a slight positive pressure in order to make the gas flowing out of the second through hole have a slight positive pressure with respect to the gas environment in which the panel is located. Preferably, the air regulator 30 may be one or more of a micro fan and a micro air pump. For example, after the micro fan is started, the gas flows to the second through hole under the blowing of the micro fan and flows out of the second through hole in a manner of being greater than the gas pressure of the gas environment.

Because the sterilizing substance released by the sterilizing structure is mixed with the air, the virus in the surrounding environment can be killed, and sterile air is formed. Therefore, the gas flowing out of the second through hole is free from viruses, and the entry of new coronavirus from the breath can be avoided.

If the sterilizing structure is too small to adequately sterilize and effect the gas, the sterilizing structure needs to be positioned in the path through which the gas must flow and be capable of releasing sufficient sterilizing substance. The increased surface area of the sterilizing structure facilitates the release of more sterilizing substance. Thus, within the cavity of the sufficiently large cavity, the sterilization structure is provided as at least one sterilization release layer, as shown in fig. 1 and 4. The sterilization slow-release layer is arranged on the first shell, the second shell or between the first shell and the second shell, and a space allowing gas to pass through is arranged. Preferably, the sterilization slow-release layer can be an integral body, or can be formed by arranging a plurality of sterilization slow-release layers. Intervals may or may not exist between the plurality of sterilization release layers.

When the gas passes through the cavity provided with the sterilization slow-release layer, the gas is contacted with the sterilization substance to kill viruses, and the virus-free gas is obtained.

Preferably, the sterilizing structure is arranged in the flow channel through which the gas flows, and the sterilization and disinfection of the gas are realized in a gas filtering mode. As shown in fig. 2 and 5, the flow path through which the gas in the cavity 40 must pass is provided with a number of sterilization structures that allow the gas to pass. The sterilizing structure is provided with a plurality of filtering structures which allow gas to pass through. The filtering structure is, for example, a filtering hole, a filtering flow passage, a general flow passage, etc. Preferably, the gas is mixed with the sterilizing substance released slowly from the sterilizing structure a plurality of times during the passage of the gas through the at least one filtering structure to form a virus-free sterilizing gas. The arrangement of the plurality of sterilization structures in the same gas flow channel can enable gas to be sterilized and disinfected through the sterilization structures for multiple times, so that the gas which is not fully sterilized through the sterilization structure for the first time can obtain more sterilization substances in the subsequent process of passing through the sterilization structures, and therefore, the gas can be fully sterilized and disinfected. Moreover, through the gas of a plurality of sterilization structures, gas can disperse and mix at the flow in-process for gas and the sterilization material that slowly-releasing released carry out intensive mixing, more are favorable to improving gaseous sterilization efficiency.

Preferably, as shown in fig. 5, the cavity 40 between the first and second housings includes at least a drainage lumen 41 and a diffusion lumen 42. The drainage lumen 41 is used to direct the gas entering the first through-hole to the second through-hole 70. The diffusion chamber 42 is in communication with the second through holes for diffusing the gas to further second through holes. At least one gas regulating device 30 and at least one sterilization structure are disposed within the drainage lumen 41. Preferably, the gas regulating device 30 may also be disposed between the first through hole and the drainage lumen.

The sterilization structure is provided with a plurality of gas flow channels. The gas regulating device 30 blows gas from the first through hole 60 into the gas flow channel 21 in the sterilization structure. Preferably, the flow direction is different between the gas flow channels, so that the gas is guided to flow to different directions and thus flows out from the second through holes 70 in different directions. The advantage of so setting up is convenient for gas can be from the second through-hole of different directions outflow, avoids gas only to flow out from local second through-hole and the defect that forms the sterile field around the face and form is difficult.

Preferably, the flow channels in the sterilizing structure are arranged such that the width of the flow channels in the direction of fluid flow has a gradually narrowing trend. The narrowing of the width of the flow channel facilitates the pressure increase of the gas in the flow channel, thereby providing a greater gas pressure when flowing out of the flow channel and further facilitating the formation of a micro-positive pressure of the gas in the diffusion chamber 42 relative to the external environment.

Preferably, at least one gas regulating device 30 is also arranged in the diffusion chamber 42 in order to pressurize the gas. Preferably, the gas adjusting device 30 is further configured to facilitate the sterilizing gases flowing out of the respective flow passages to be mixed and then flow out of the second through hole. The sterilizing substance slowly released in the flow path of the sterilizing structure is not necessarily uniform, and some flow paths have more and some flow paths have less, which may cause some gases to be sufficiently sterilized and some gases have poor sterilizing effect. The sterilizing gas in each flow passage is mixed in the diffusion cavity 42 for one time, so that the sterilizing substances in the gas are also mixed and sufficiently sterilized, viruses which are not killed are further killed, and the sterilizing efficiency of the gas is improved.

Preferably, the diffusion chamber 42 may be absent. The outlet of each flow channel of the sterilization structure is directly corresponding to each second through hole 70, so that the sterilization gas flowing out of each flow channel in the sterilization structure is directly sprayed out of the second through holes 70 in a micro-positive pressure mode.

Preferably, as shown in fig. 7, the flow path of the sterilizing structure is streamlined and includes at least one streamlined flow mixing structure 22. The mixed flow structure 22 divides the gas in the flow channel to flow along the two sub-flow channels at the starting end of the streamline to form a partial gas flow. At the terminating end of the streamline, the separated runners are communicated according to the streamline, so that the sub-airflows in the two sub-runners are converged and mixed to form a first mixed airflow. In the process of mixing the air flow, the whole flow channel is narrowed, the air pressure of the air flow is increased, and the micro-positive pressure of the air flow is increased. Moreover, in the process of gas flow mixing, the gas flow mixing of the different concentrations of the sterilizing substances enables the sterilizing substances to be uniformly dispersed in the gas, and the gas is fully sterilized and disinfected. Preferably, the first mixed gas stream will even form a vortex, which is more advantageous for the mixing and uniform distribution of the sterilizing substance.

When more than one flow mixing structure 22 is provided in the flow-line type flow mixing structure, the flow channel is adapted to the flow mixing structure in contour and the flow mixing section between the two flow mixing structures is provided with a flow channel width narrowing tendency. Upon encountering the second mixed flow structure, the first mixed gas stream again undergoes the splitting and converging processes, thereby generating a second mixed gas stream, even a third mixed gas stream, and so on. Preferably, the gas outlets of the flow channels are arranged in a streamline converging manner which facilitates the gathering of the gas flow, i.e. in the vicinity of the streamline terminating end of the flow mixing structure 22. At the moment, the sub-air flows are converged, the air pressure is increased, the formed micro-air pressure is higher, the air is more favorable for being sprayed out from the second through hole and forming a virus-free air curtain, and the virus-containing air is blown away to protect the area near the face to form a virus-free micro-positive pressure area, so that the breathed air is virus-free sterilizing air.

Preferably, the plurality of flow mixing structures 22 can be arranged in a plurality of ways, such as side-by-side, staggered, arranged in the direction of fluid flow, and the like. Preferably, the streamline flow channels can be communicated with each other, so that the airflow can be divided and gathered at will.

Preferably, as shown in fig. 8, at least one micro flow channel 23 is provided in the flow mixing structure 22. The microchannels are also streamlined. The microchannel 23 conducts the portion near the starting end and the portion near the terminating end of the mixed flow structure 22. Because the air pressure near the starting end is different from the air pressure near the ending end, the micro-channel 23 can enable part of air to flow in and out of the micro-channel based on the difference of the air pressure, and the air mixing degree in the streamline flow channel is further improved.

Under the condition of above zero degree, the gas exhaled by the human body has high density, high humidity and high temperature, and can flow upwards more easily. The humidity of the sterilizing gas is low and the temperature is also low. If the density of the sterilizing gas is low and the temperature difference with the exhaled gas is small, the sterilizing gas can be easily mixed with the exhaled gas, so that the sterilizing gas inhaled into the human body contains part of the exhaled gas.

The streamline flow passage with the mixed flow structure increases the gas pressure and also increases the gas density. For gas, a gas having a low density easily flows upward, and a gas having a high density easily flows downward. Therefore, the more dense sterile gas with the incorporated sterilizing substance is more different from the exhaled gas. The sterile gas more readily flows downwardly at a flow rate greater than the exhaled gas, thereby desalinating the exhaled gas flowing upwardly, i.e., reducing the proportion of exhaust gas in the inhaled gas, so that the user can exhale a large volume of fresh sterile air.

The aperture of the micro-channel in the mixed structure is smaller than that of the sub-channel, so that the gas in the micro-channel has higher flow speed under the condition of the same air pressure difference, partial temperature close to the surface of the head can be taken away quickly, the slowed flow speed of the gas in the sub-channel can be compensated, the defects that the air pressure of the sub-channel is reduced and the flow speed of the sterilizing gas is slowed are overcome, and the defect that the flow speed of the gas in the whole channel is slowed due to flow separation is overcome. The micro flow channel is arranged, so that the sterilization efficiency and the flow rate of the gas flowing out of the second through hole are not lower than the flow rate of the gas entering the flow channel at the initial stage.

In a humid environment, the moisture content in the air rises. The deposited water droplets are more easily formed due to the greater density of water. The increase in humidity can reduce the difference in density, humidity and exhaled air of the sterilizing gas, so that the sterilizing gas can be more easily mixed with the exhaled waste gas and enter the human body again. The design of the sub-flow channel can ensure that water is deposited when the flow rate is slowed down, and the flow rate is increased at the ending end of the mixed flow structure, so that the effect of reducing the humidity in the gas is achieved, and the humidity of the sterilizing gas is smaller than that of the exhaled gas. The gas in the micro-channel has high flow rate, water cannot be deposited, and the gas in the micro-channel can neutralize the humidity of the gas in the sub-channel, so that the gas is prevented from being too dry.

Therefore, the matching design of the sub-channel and the micro-channel is more beneficial to the adjustment of the humidity, the density and the flow rate of the sterilizing gas, so that the sterilizing gas has large difference with the exhaled waste gas, and is not easy to mix on a similar flow path, and a user can inhale the high-quality sterilizing gas.

Preferably, the second through-hole 70 has a hole angle with a certain inclination angle, as shown in fig. 1 and 2. Specifically, the inclination angles of the second through holes on the two sides of the panel are set in a manner that the gas flows towards the panel, so that the virus-free gas on the two sides of the panel flows around the head from the back of the brain to the panel. Preferably, the inclination angle of the second through hole located in the setting range of the panel is set in such a manner that the gas flows along the inner side surface of the panel in the direction of the gas. Therefore, the virus-free gas on the two sides of the face screen and the virus-free gas on the inner side face of the face screen separate the ambient gas from the face area in a micro-positive pressure mode, so that the area in the face screen becomes a micro-positive pressure virus-free area, and the gas with viruses is prevented from being sucked.

Preferably, the second through holes 70 include not only edge through holes 71 provided along the periphery of the panel but also non-edge through holes 72 provided at the second housing 50. The non-edge through-hole 72 is provided at a non-edge position of the second housing. For example, the non-edge through-hole 72 is provided in the central region of the second housing, or in a region between the central region and the edge. Non-edge through holes 72 are provided to enable a portion of the sterile gas to flow from the head surface to cool the head.

In the prior art, the ozone and ultraviolet lamp power consumption devices are adopted to sterilize and disinfect gas, so that not only is redundant heat emitted, but also the panel is heavy and the electric energy is consumed quickly. When the face screen device is discarded, the ozone device is not beneficial to the protection of the existing healthy environment. Compared with the curve of the prior art, the cavity reduces the whole weight of the panel, and the sterilization slow release body is made of light materials, so that the weight of the sterilization slow release body can be ignored. Moreover, only the gas regulating device in the fixing main body needs to consume a power supply, so that only a light power supply with small electric energy storage, such as a lithium battery, needs to be arranged. The concrete structures of the invention are designed from the perspective of reducing the weight of the fixing main body and protecting the environment, and the defects of high energy consumption, heavy weight and environmental pollution in the prior art are overcome.

The sterilization structure of the invention increases the pressure of the gas through the design of the flow channel, so that the virus-free gas forms micro positive pressure relative to the external environment, and the energy consumption burden of the gas regulating device for increasing the pressure is reduced, therefore, the gas regulating device can be used by adopting a low-power device. It is preferred. The flow channel in the sterilization structure of the present invention is not limited to a specific shape, and the same technical effects as those of the examples can be achieved.

Preferably, in an intelligent direction, a microcontroller and a plurality of air pressure sensors can be arranged in the cavity 40 of the invention. Preferably, the microcontroller may be a dedicated integrated chip capable of processing and issuing simple control instructions. The air pressure sensor comprises an ambient air pressure sensor and an internal air pressure sensor of the second through hole. The microcontroller is in signal transmission connection with the gas regulating device 30. When the difference value between the environment air pressure detected by the environment air pressure sensor and the internal air pressure monitored by the internal air pressure sensor of the second through hole is smaller than the threshold value, even under the condition that the environment air pressure is larger than the internal air pressure, the microcontroller controls the gas adjusting device to increase the flow rate or the air pressure of the gas, so that the internal air pressure is larger than the environment air pressure, namely, the face range in the face screen is in a micro-positive pressure environment. Through the arrangement of the microcontroller and the plurality of air pressure sensors, the panel screen can be worn in various environment occasions with abnormal air pressure, so that more environments can be used.

Preferably, the invention may even be provided with a timer for counting the time of use of the sterilization structure. The timer may display the time of use of the sterilization structure and the time period that needs to be replaced by colored indicator lights. And even can remind the user to replace the ineffective sterilization structure by emitting warning light. Namely, on the basis of the basic mechanical structure of the invention, various miniature electronic components can be arranged to make the use of the invention more humanized.

Example 2

This embodiment is an improvement and further application of embodiment 1, and repeated contents are not described again.

Preferably, the fixing body of the present invention can be used alone to form a separate gas sterilization and disinfection apparatus, thereby purifying air in local environment and improving air quality.

Preferably, the stationary body of the present invention can be used for sterilization of liquid when the gas regulating device 30 of the present invention is exchanged for the liquid regulating device 30.

That is, the fixing body of the present invention can be used for sterilization of fluid.

The invention provides an active antibacterial fluid purification device, which comprises a shell. It is characterized in that at least one cavity is arranged in the shell. The surface of the shell is provided with a plurality of first through holes and a plurality of second through holes which are communicated with the cavity. The first through hole is for the entry of fluid. The second through hole is used for fluid outflow.

At least one sterilization structure consisting of a sterilization slow release body and at least one fluid regulating device are arranged in the cavity. The fluid regulating device is used for guiding and promoting the unidirectional flow of the fluid from the first through hole to the second through hole. Preferably, the fluid regulating device is also used for pressurizing the fluid. When the fluid is a liquid, the fluid regulating device may be a turbine, a water pump, or the like, which changes the direction of the fluid flow. When the fluid is gas, the fluid adjusting device may be a fan, an air pump, or the like, which changes the flow direction of the gas.

The sterilizing structure is arranged on a necessary path for the fluid to flow from the first through hole to the second through hole, so that the fluid is mixed with sterilizing substances slowly released by the sterilizing structure to sterilize and validate the virus in the process of the fluid passing through the sterilizing structure, and the virus-free purified fluid is formed.

Preferably, the sterilized and purified fluid flows out from the second through hole in a manner of having a micro-positive pressure relative to the external fluid environment, so that the surrounding fluid environment where the active antibacterial fluid purification device is located forms a virus-free antibacterial environment, thereby achieving virus purification of the fluid environment.

The invention also provides an active antibacterial fluid purification method, which is characterized by at least comprising the following steps:

the shell is provided with a first through hole and a second through hole which are communicated with the inner cavity of the shell. At least one sterilization structure consisting of a sterilization slow release body and at least one fluid regulating device are arranged in the cavity. Disposing the sterilizing structure on a flow path of fluid flow between the first and second through-holes. In case the fluid conditioning device directs the fluid through the sterilizing structure and to the second through hole in a directed and/or pressurized manner, the fluid mixes with the sterilizing substance released slowly by the sterilizing structure and exits from the second through hole in a manner that a slight positive pressure exists with respect to the external fluid environment.

The arrangement modes of the sterilization slow-release layer, the flow channel, the mixed flow structure and the like in the sterilization structure in this embodiment are not described in detail.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. An active antibacterial protective face screen, at least comprising a fixed main body and a face screen (70), wherein at least one cavity (40) is arranged in the fixed main body,

the fixed main body is provided with a first through hole (60) and a second through hole (70) which are communicated with the cavity (40),

at least one sterilization structure consisting of a sterilization slow-release body (20) and at least one gas regulating device (30) are arranged in the cavity (40),

the sterilization structure is arranged on a flow path of the air flow between the first through hole (60) and the second through hole (70),

in case the gas regulating means (30) regulates the gas in a blowing and/or pressurizing manner in such a way that it passes through the sterilization structure and flows to the second through hole,

the fluid mixes with the sterilizing substance released slowly by the sterilizing structure and flows out of the second through hole in a manner that a slight positive pressure exists with respect to the external fluid environment.

2. The active bacteriostatic protective panel according to claim 1 wherein the inclination angle of the second through holes is set in a manner that gas flows toward the position of the panel,

the gas of the second through holes positioned in the range of the inner side surface of the face screen (80) flows along the longitudinal direction of the face screen,

the gas of the second through holes positioned at both sides of the face screen (80) flows obliquely towards the face screen and/or flows around the head,

so that the gas on the inner side of the face shield and the gas on the two sides surround to form a sterile gas area with micro positive pressure.

3. The active bacteriostatic protective panel according to claim 2, wherein the sterilizing structure is arranged in the cavity (40) in a sterilizing slow-release layer and forms a flow passage for gas to pass through; or

The sterilization structure is provided with a number of filtering holes allowing the passage of gas.

4. The active bacteriostatic protective panel according to claim 2 wherein at least one flow passage allowing gas to pass through is arranged in the sterilizing structure,

the gas conditioning device (30) is arranged at the inlet of the flow channel, in the flow channel and/or at the outlet of the flow channel.

5. The active bacteriostatic protective panel according to claim 4 wherein the width of the flow channel is changed in a gradually narrowing trend to increase the pressure of the gas.

6. An active antibacterial protective face screen according to any claim 1-5, characterized in that the flow channel in the cavity is streamline, and at least one mixed flow structure (22) with streamline outline is arranged in the flow channel,

the profile of the flow channel is adapted to the mixed flow structure (22) and the mixed flow section between the two mixed flow structures (22) is arranged with the trend that the flow channel width is narrowed,

so that the gas is divided and mixed for at least one time in the flow channel based on the streamline contour of the mixed flow structure (22), so that the gas is fully mixed with the sterilizing substance released by the sterilizing structure.

7. The active bacteriostatic protective panel according to claim 6 wherein the contour of the gas outlet of the streamlined flow channel is arranged according to the converging tendency of the pressure of the pressurized gas.

8. The active bacteriostatic protective face screen according to claim 6, characterized in that the cavity (40) comprises a drainage cavity (41) and a diffusion cavity (42),

at least one sterilization structure with a flow passage is arranged in the drainage cavity (41),

the fluid regulating device is arranged upstream of the flow channel inlet, in the flow channel and/or downstream of the flow channel outlet of the sterilizing structure,

the diffusion chamber (42) is communicated with the flow passage outlet, wherein,

the runner outlet and the second through hole are arranged in a staggered mode for preventing the gas from directly flowing out, so that the sterile gas flowing out of the runner diffuses the mixed flow part in the diffusion cavity (42) and flows out of the second through hole in a micro-positive pressure mode.

9. An active bacteriostatic fluid purification device, at least comprising a shell, wherein at least one cavity is arranged in the shell, and the active bacteriostatic fluid purification device is characterized in that,

the shell is provided with a first through hole and a second through hole which are communicated with the cavity,

at least one sterilization structure consisting of a sterilization slow-release body and at least one fluid regulating device are arranged in the cavity,

the sterilizing structure is disposed on a flow path of fluid flow between the first and second through-holes,

in case the fluid regulating means regulates the fluid in a guided and/or pressurized manner through the sterilizing structure and to the second through hole,

the fluid mixes with the sterilizing substance released slowly by the sterilizing structure and flows out of the second through hole in a manner that a slight positive pressure exists with respect to the external fluid environment.

10. A method of actively contained fluid purification, the method comprising:

a first through hole and a second through hole which are communicated with the inner cavity of the shell are arranged on the shell,

at least one sterilization structure consisting of a sterilization slow-release body and at least one fluid regulating device are arranged in the cavity,

disposing the sterilizing structure on a flow path of fluid flow between the first and second through-holes,

in case the fluid conditioning device directs and/or pressurizes the fluid through the sterilization structure and to the second through hole,

the fluid mixes with the sterilizing substance released slowly by the sterilizing structure and flows out of the second through hole in a manner that a slight positive pressure exists with respect to the external fluid environment.

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