Barrier device for viral aerosol transmission

Abstract

The application provides a virus aerosol transmission blocking device, comprising: a base; an air outlet assembly arranged on the base and provided with an air outlet; a high-pressure fan arranged on the base and having an air outlet end communicated with the air outlet through an air supply pipeline; the high-pressure fan provides high-pressure gas which is sprayed out through the air outlet to form an air curtain; and a disinfection assembly arranged at an air inlet end of the high-pressure fan and used for disinfecting the air inlet of the high-pressure fan. The blocking device forms an air curtain between two parties in communication by using purified air, the air curtain can isolate the air circulation of two areas, thereby blocking the aerosol transmission path and preventing the transmission of bacteria and viruses.

Description

Technical Field

[0001] This invention belongs to the technical field of infectious disease prevention equipment, specifically relating to a device for blocking the transmission of viral aerosols. Background Technology

[0002] Bacteria, viruses, and other pollutants primarily spread via aerosols. An aerosol is a gaseous dispersion system composed of solid or liquid particles suspended in a gaseous medium. The density of these solid or liquid particles can differ slightly from the density of the gaseous medium. Aerosol transmission pathways utilize aerosols as an intermediate medium for propagation.

[0003] In various public service venues, aerosols and droplets are expelled forward during speech and respiration, inevitably leading to the spread of bacteria, viruses, and other contaminants. Therefore, during periods of high infectious disease incidence, protective measures are crucial to control and prevent staff infection. Currently, the main methods to block the spread of bacteria and viruses are isolating staff in enclosed spaces or using glass barriers. However, these methods separate staff and passengers into two areas, preventing face-to-face communication and creating communication barriers that impact convenience and may leave a negative impression on passengers. Furthermore, current protective devices are typically bulky and fixed, unable to be adjusted in position or orientation to suit different business needs, thus limiting their flexible application.

[0004] Therefore, there is a need for a flexible facility that can block the spread of bacteria and viruses through aerosols to protect both parties when staff communicate with people face-to-face. Summary of the Invention

[0005] This invention addresses the technical problems of current enclosed protective facilities for staff in public places, which cannot enable face-to-face communication between staff and people, and whose protective devices are fixed in location, bulky, and inflexible. It provides a device to block the transmission of viral aerosols. This device uses purified air to form an air curtain between the two parties communicating. The air curtain can isolate the air flow between the two areas, thereby blocking the aerosol transmission path and preventing the spread of bacteria and viruses.

[0006] To address the above problems, the present invention provides a device for blocking the transmission of viral aerosols, comprising:

[0007] Base;

[0008] An air outlet assembly is disposed on the base and has an air outlet.

[0009] A high-pressure fan is arranged on the base and an air outlet end of the high-pressure fan is communicated with the air outlet through an air supply pipeline; high-pressure gas provided by the high-pressure fan is sprayed out of the air outlet to form an air curtain;

[0010] A disinfection assembly is arranged at an air inlet end of the high-pressure fan to disinfect air inlet of the high-pressure fan.

[0011] Preferably, the air outlet assembly comprises a first air outlet pipe body; the air outlet is arranged on a side wall of the first air outlet pipe body; a pipe cavity of the first air outlet pipe body is communicated with the air outlet, and the pipe cavity of the first air outlet pipe body before the air outlet is divided into a plurality of sub-flow channels; at an end away from the air outlet, a plurality of the sub-flow channels are arranged along a radial direction of the first air outlet pipe body, and at an end close to the air outlet, a plurality of the sub-flow channels are arranged along an axial direction of the first air outlet pipe body.

[0012] Preferably, an end of the pipe cavity away from the air outlet is divided into equal lengths in the radial direction; and an end of the pipe cavity close to the air outlet is divided into equal lengths in the axial direction.

[0013] Preferably, the pipe cavity of the first air outlet pipe body is divided into a plurality of sub-flow channels by a plurality of division plates; the division plates comprise a flow division plate and a flow guide plate, the flow division plate is located close to the pipe cavity, and the flow division plate is parallel to the axial direction of the first air outlet pipe body; the flow guide plate is an arc-shaped plate, one end of the flow guide plate is connected with the flow division plate, and the other end of the flow guide plate is connected with the air outlet.

[0014] Preferably, the air outlet assembly further comprises a second air outlet pipe body, one end of the second air outlet pipe body is connected with the base, and the other end of the second air outlet pipe body is connected with the first air outlet pipe body; one end of a pipe cavity of the second air outlet pipe body is communicated with the air outlet end of the high-pressure fan, and the other end of the pipe cavity of the second air outlet pipe body is communicated with the pipe cavity of the first air outlet pipe body; the second air outlet pipe body is vertically arranged, and the first air outlet pipe body is obliquely arranged.

[0015] Preferably, the disinfection assembly is a high-efficiency filter element and / or an ultraviolet disinfection mechanism; the high-efficiency filter element is arranged at an air inlet of the high-pressure fan; the ultraviolet disinfection mechanism is arranged at an air inlet end of the high-pressure fan and is configured such that ultraviolet rays of the ultraviolet disinfection mechanism irradiate air inlet of the air inlet end of the high-pressure fan.

[0016] Preferably, the blocking device for virus aerosol transmission further comprises a main control module and a power supply, and the main control module is electrically connected with the power supply, the high-pressure fan and the ultraviolet disinfection mechanism, respectively.

[0017] Preferably, the human body monitoring module and the fan frequency control module are electrically connected with the main control module, and the fan frequency control module is electrically connected with the high-pressure fan; the human body monitoring module is used for detecting whether there is a person within a preset distance range of the virus aerosol transmission blocking device; the fan frequency control module is used for adjusting the high-pressure fan frequency when a person is present within the preset distance range, so that the high-pressure fan increases the wind speed to a preset value; and the fan frequency control module is used for adjusting the high-pressure fan frequency when no person is present within the preset distance range, so that the high-pressure fan reduces the wind speed to stop.

[0018] Preferably, the base comprises a chassis and a walking mechanism arranged at the bottom of the chassis, and the virus aerosol transmission blocking device further comprises a following module, and the following module and the walking mechanism are electrically connected with the main control module; the main control module is used for receiving the relative position and the relative distance between the chassis and the following target sent by the following module, calculating the difference between the relative distance and a preset distance, and controlling the operation of the walking mechanism according to the difference and the relative position.

[0019] Preferably, the environment acquisition module, the terrain calculation module, the route recording module and the return path calculation module are electrically connected with the main control module; the environment acquisition module is used for acquiring surrounding environment information; the terrain calculation module is used for generating a 3D drawing of the surrounding environment according to the acquired surrounding environment information; the route recording module is used for monitoring and recording the walking route; and the return path calculation module is used for calculating and generating a return path according to the 3D drawing of the surrounding environment and the walking route.

[0020] Compared with the prior art, the virus aerosol transmission blocking device has the following beneficial effects:

[0021] The virus aerosol transmission blocking device of the application can prevent the spread of bacteria and viruses.

[0022] The virus aerosol transmission blocking device of the application further improves the air flow channel at the front end of the air outlet, divides the high-pressure air into multiple air flows before the air outlet, and guides the air flows, so that the air is sprayed downward, ensuring the uniformity of air flow in the length direction of the air outlet and reducing wind noise. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1This is a schematic diagram of the structure of the virus aerosol transmission blocking device described in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the first air outlet duct in the virus aerosol transmission blocking device described in an embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of the first air outlet duct in the virus aerosol transmission blocking device described in the embodiment of the present invention;

[0026] Figure 4 This is a circuit diagram of the virus aerosol transmission blocking device described in an embodiment of the present invention.

[0027] Wherein: 1-base; 2-air outlet assembly; 21-first air outlet duct; 22-second air outlet duct; 3-air outlet; 4-sub-channel; 5-dividing plate; 51-diverter plate; 52-guide plate; 6-electric universal wheel set; 7-high pressure fan. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Example

[0030] like Figure 1 As shown, this embodiment of a virus aerosol transmission blocking device includes: a base 1, an air outlet assembly 2, a high-pressure blower 7, and a disinfection assembly. The air outlet assembly 2 is disposed on the base 1 and has an air outlet 3; the high-pressure blower 7 is disposed on the base 1, and the air outlet end of the high-pressure blower 7 is connected to the air outlet 3 through an air supply pipe; the high-pressure gas provided by the high-pressure blower 7 is ejected through the air outlet to form an air curtain; the disinfection assembly is disposed at the air inlet end of the high-pressure blower 7 and is used to disinfect the air entering the high-pressure blower 7.

[0031] The virus aerosol transmission blocking device in this embodiment draws in air using a high-pressure blower, and the air is disinfected by a disinfection component at the air inlet of the high-pressure blower. The disinfected and purified high-pressure air is then sprayed out from the air outlet, forming a local air curtain. The air curtain is located between two people communicating face-to-face, which can block the air exchange between the two areas, block the transmission route of aerosols, and prevent the spread of bacteria and viruses.

[0032] The high-pressure fan and the air outlet for forming the air curtain can use various types of products in the prior art as long as they can form the air curtain. The air curtain is formed by a high-speed motor driving a cross-flow or fan to generate a strong airflow, and the airflow is washed at a certain speed to form an invisible "curtain".

[0033] Preferably, the air outlet 3 is in the shape of a flat strip, and the air outlet 3 is downward. The shape of a flat strip means that the width is much smaller than the length. The air outlet in the shape of a flat strip can form a flat air wall. The downward air outlet direction can avoid interference with other people or objects around the air curtain.

[0034] Preferably, the length of the air outlet 3 is 5-40 cm, and the width is 1-10 mm. The air outlet with the size range can form an air curtain of appropriate size in front of the two communicating sides, which can not have too much impact on the surrounding environment, and can also ensure that the blocking effect of aerosol transmission between the two areas is more effective.

[0035] The air outlet assembly can adopt various structures with different shapes as long as it can set the air outlet and make the high-pressure air provided by the high-pressure fan sent out from the air outlet to form the air curtain. Preferably, as shown in Figure 2 、 Figure 3 The air outlet assembly 2 includes a first air outlet pipe body 21. The air outlet 3 is arranged on the side wall of the first air outlet pipe body 21. The pipe cavity of the first air outlet pipe body 21 is in communication with the air outlet 3, and the pipe cavity of the first air outlet pipe body 21 located in front of the air outlet 3 is divided into a plurality of sub-flow channels 4. At the end away from the air outlet 3, the plurality of sub-flow channels 4 are arranged along the radial direction of the first air outlet pipe body 21. At the end close to the air outlet 3, the plurality of sub-flow channels 4 are arranged along the axial direction of the first air outlet pipe body 21. The plurality of sub-flow channels divide the high-pressure air in the first air outlet pipe body into a plurality of air flows in front of the air outlet, and guide the air flow along the axial direction to the radial direction perpendicular to the length direction of the air outlet, so that the air is sprayed downward. If the air is not divided and guided in front of the air outlet, the air flow at the farthest end of the air outlet may be very large, and the air flow at the nearest end may be very small. The air flow difference along the length direction of the air outlet is large. The pipe cavity in front of the air outlet is divided by the plurality of sub-flow channels, which can ensure the uniformity of the air flow along the length direction of the air outlet.

[0036] Preferably, the end of the pipe cavity away from the air outlet 3 is equally divided in the radial direction; and the end of the pipe cavity close to the air outlet 3 is equally divided in the axial direction.

[0037] Preferably, the tubular cavity of the first air outlet pipe body is divided into a plurality of sub-flow channels 4 by a plurality of partition plates 5; the partition plates 5 include a flow distribution plate 51 and a flow guide plate 52, the flow distribution plate 51 is located on one side close to the tubular cavity, and the flow distribution plate 51 is parallel to the axial direction of the first air outlet pipe body 21; the flow guide plate 52 is an arc-shaped plate, one end of the flow guide plate 52 is connected with the flow distribution plate 51, and the other end is connected with the air outlet 3. The partition plate composed of the flat plate and the arc-shaped plate makes the divided sub-flow channels have a streamline shape, which can further reduce the wind noise.

[0038] Preferably, the arc of the arc-shaped plate can be adjusted, and is preferably 90°. The high-pressure air is diverted by 90° from the parallel axial direction by using the 90° arc-shaped plate, and the airflow direction is perpendicular to the air outlet when the high-pressure gas is sprayed out of the air outlet.

[0039] Preferably, the high-pressure fan is a BLDC high-pressure silent fan. The BLDC is a brushless direct current motor, and the use of the high-pressure silent fan can further reduce the noise of the blocking device.

[0040] Preferably, the air outlet assembly 2 further comprises a second air outlet pipe body 22, one end of the second air outlet pipe body 22 is connected with the base 1, and the other end is connected with the first air outlet pipe body 21; and one end of the tubular cavity of the second air outlet pipe body 22 is in communication with the air outlet end of the high-pressure fan, and the other end is in communication with the tubular cavity of the first air outlet pipe body 21; the second air outlet pipe body is vertically arranged, and the first air outlet pipe body is obliquely arranged.

[0041] Preferably, the sterilization assembly comprises a high-efficiency filter element and an ultraviolet sterilization mechanism; the high-efficiency filter element is arranged at the air inlet of the high-pressure fan; the ultraviolet sterilization mechanism is arranged at the air inlet end of the high-pressure fan, and is configured such that the ultraviolet light of the ultraviolet sterilization mechanism irradiates the air inlet of the air inlet end of the high-pressure fan. The high-efficiency filter element can filter the inhaled air efficiently, and can directly filter most aerosols, dust, bacteria and viruses; the filtered air is sterilized by the ultraviolet sterilization mechanism, the ultraviolet sterilization mechanism can sterilize the air by using ultraviolet light with a wavelength of 253.7 nm, and the sterilization ensures the cleanliness of the sprayed air.

[0042] Preferably, as shown in Figure 4 the virus aerosol transmission blocking device further comprises a main control module and a power supply, and the main control module is electrically connected with the power supply, the high-pressure fan and the ultraviolet sterilization mechanism. The power supply supplies power to the main control module, the high-pressure fan and the ultraviolet sterilization mechanism, and the high-pressure fan and the ultraviolet sterilization mechanism operate under the control of the main control module. Further, the power supply is a rechargeable power supply and has charging protection and discharging protection functions. The power supply preferably uses a large-capacity battery, which can provide power for the device for a long time without the need to link to an external power supply, facilitating the flexible movement of the blocking device.

[0043] Preferably, the virus aerosol transmission blocking device further comprises a touch display module, and the touch display module is electrically connected with the main control module. The touch display module can adopt a touch liquid crystal display, adopt a full Chinese prompt, and can also control the high-pressure fan and the ultraviolet disinfection mechanism of the virus aerosol transmission blocking device on the touch liquid crystal display.

[0044] Preferably, the virus aerosol transmission blocking device further comprises a human body monitoring module and a fan frequency control module, the human body monitoring module and the fan frequency control module are respectively electrically connected with the main control module, the fan frequency control module is electrically connected with the high-pressure fan, the human body monitoring module is used to detect whether there is a person within a preset distance range of the virus aerosol transmission blocking device, and the fan frequency control module is used to adjust the frequency of the high-pressure fan to increase the wind speed of the high-pressure fan to a preset value when there is a person within the preset distance range, and to adjust the frequency of the high-pressure fan to reduce the wind speed of the high-pressure fan to stop when there is no person within the preset distance range.

[0045] Therefore, the virus aerosol transmission blocking device of the embodiment can automatically work the wind curtain, automatically start the wind curtain when a person comes, automatically reduce the wind speed when there is no person, and automatically start the wind curtain again when the next person comes, so as to reduce the power consumption and noise of the device.

[0046] The human body monitoring module can be an infrared sensor or other device capable of monitoring the presence of a human body.

[0047] The preset distance range can be a range with a center of the device as a center and a radius of 1 m, 2 m or 3 m, and the size of the range can be adjusted according to the actual application scenario.

[0048] Preferably, the base 1 comprises a chassis and a traveling mechanism arranged at the bottom of the chassis, and the virus aerosol transmission blocking device further comprises a following module, the following module and the traveling mechanism are respectively electrically connected with the main control module, the main control module is used to receive the relative position and the relative distance between the chassis and the following target sent by the following module, calculate the difference between the relative distance and a preset distance, and control the operation of the traveling mechanism according to the difference and the relative position.

[0049] Specifically, the specific structure of the following module belongs to the prior art, as long as the chassis can automatically follow the target person to walk, the function can be realized, and the structures related to the following module in various following robots disclosed at present can be used, which will not be described here.

[0050] Preferably, the virus aerosol transmission blocking device further comprises an obstacle avoidance module, which is electrically connected with the main control module, and is used for monitoring the distance between the flowing personnel and the chassis, and the main control module is used for controlling the running and stopping of the walking mechanism according to the distance between the flowing personnel and the chassis transmitted by the obstacle avoidance module.

[0051] Specifically, the obstacle avoidance module can be at least one of a laser radar and an ultrasonic radar.

[0052] Preferably, the virus aerosol transmission blocking device further comprises an environment acquisition module, a terrain calculation module, a route recording module and a return path calculation module, which are electrically connected with the main control module: the environment acquisition module is used for acquiring surrounding environment information; the terrain calculation module is used for generating a 3D drawing of the surrounding environment according to the acquired surrounding environment information; the route recording module is used for monitoring and recording the walking route; and the return path calculation module is used for calculating and generating a return path according to the 3D drawing of the surrounding environment and the walking route.

[0053] The virus aerosol transmission blocking device of the embodiment has an initial position at a charging pile, and when starting to run, the device starts to acquire surrounding environment information through the environment acquisition module when leaving the charging pile, and transmits the acquired surrounding environment information to the terrain calculation module through the main control module. The terrain calculation module calculates and generates a 3D drawing of the surrounding environment. Meanwhile, the route recording module records the current walking route during the movement, and when it is necessary to return to the charging pile for charging, the return path calculation module calculates and generates a return path line in combination with the 3D drawing of the surrounding environment and the walking route. Thus, the virus aerosol transmission blocking device can walk to the charging pile position by itself when the power is low, and can be charged. After the charging is completed, the device automatically returns to the working position.

[0054] Preferably, the environment acquisition module is at least one of a laser radar and a camera. Further preferably, the environment acquisition module is a laser radar and a camera. The laser radar scans the surrounding solid objects and their positions, and the camera acquires the images of the surrounding objects. The terrain calculation module fuses and calculates the data measured by the laser radar and the information collected by the camera to generate a 3D drawing of the surrounding environment.

[0055] The laser radar and the camera can each be one or more. Preferably, the laser radar and the camera are both multiple and are arranged at different positions on the chassis.

[0056] Preferably, the walking mechanism is an electric universal wheel set 6 arranged at the bottom of the base 1. The whole barrier device can be automatically moved in any direction, and can be deployed to any desired work site, and is flexible to use.

[0057] Preferably, the virus aerosol transmission barrier device further comprises a communication module electrically connected with the main control module. The communication module can realize communication with mobile phones, computers and other devices, so that the movement of the barrier device can be controlled on the mobile phone.

[0058] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A device for blocking the airborne transmission of viruses, characterized in that, The application relates to a virus aerosol transmission blocking device. The device comprises a base, an air outlet assembly arranged on the base, an air outlet arranged on the air outlet assembly, a high-pressure fan arranged on the base, an air outlet end of the high-pressure fan being communicated with the air outlet through an air supply pipeline, high-pressure gas provided by the high-pressure fan being sprayed out through the air outlet to form an air curtain, a disinfection assembly arranged on an air inlet end of the high-pressure fan and used for disinfecting air inlet of the high-pressure fan, the disinfection assembly being a high-efficiency filter element and / or an ultraviolet disinfection mechanism, the high-efficiency filter element being arranged on an air inlet of the high-pressure fan, the ultraviolet disinfection mechanism being arranged on the air inlet end of the high-pressure fan and being configured to irradiate air inlet of the air inlet end of the high-pressure fan through ultraviolet rays of the ultraviolet disinfection mechanism, a main control module and a power supply, the main control module being electrically connected with the power supply, the high-pressure fan and the ultraviolet disinfection mechanism respectively, the base comprising a base plate and a walking mechanism arranged on a bottom of the base plate, the virus aerosol transmission blocking device further comprising a following module, the following module and the walking mechanism being electrically connected with the main control module respectively, the main control module being used for receiving relative position and relative distance between the base plate and a following target sent by the following module, calculating a difference value between the relative distance and a preset distance, and controlling operation of the walking mechanism according to the difference value and the relative position, the device further comprising an environment acquisition module, a terrain calculation module, a route recording module and a return path calculation module, the environment acquisition module, the terrain calculation module, the route recording module and the return path calculation module being electrically connected with the main control module respectively, the environment acquisition module being used for acquiring surrounding environment information, the terrain calculation module being used for generating a 3D drawing of the surrounding environment according to the acquired surrounding environment information, the route recording module being used for monitoring and recording a walking route, and the return path calculation module being used for calculating and generating a return path according to the 3D drawing of the surrounding environment and the walking route.

2. The virus aerosol transmission blocking device according to claim 1, wherein the air outlet assembly comprises a first air outlet pipe body, the air outlet is arranged on a side wall of the first air outlet pipe body, a pipe cavity of the first air outlet pipe body is communicated with the air outlet, the pipe cavity of the first air outlet pipe body located before the air outlet is divided into a plurality of sub-flow channels, at an end far away from the air outlet, the plurality of sub-flow channels are arranged in a radial direction of the first air outlet pipe body, and at an end close to the air outlet, the plurality of sub-flow channels are arranged in an axial direction of the first air outlet pipe body.

3. The virus aerosol transmission blocking device according to claim 2, wherein the end far away from the air outlet of the pipe cavity is divided into equal lengths in the radial direction, and the end close to the air outlet of the pipe cavity is divided into equal lengths in the axial direction.

4. The virus aerosol transmission blocking device according to claim 2, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ The tubular cavity of the first air outlet pipe body is divided into multiple sub-flow channels by multiple partition plates; the partition plates include a flow distribution plate and a flow guide plate, the flow distribution plate is located close to one side of the tubular cavity, and the flow distribution plate is parallel to the axial direction of the first air outlet pipe body; the flow guide plate is an arc-shaped plate, one end of the flow guide plate is connected with the flow distribution plate, and the other end of the flow guide plate is connected with the air outlet.

5. The viral aerosol transmission blocking device of claim 2, wherein: The air outlet assembly further comprises a second air outlet pipe body, one end of the second air outlet pipe body is connected with the base, and the other end of the second air outlet pipe body is connected with the first air outlet pipe body; one end of the tubular cavity of the second air outlet pipe body is in communication with the air outlet end of the high-pressure fan, and the other end of the tubular cavity of the second air outlet pipe body is in communication with the tubular cavity of the first air outlet pipe body; the second air outlet pipe body is vertically arranged, and the first air outlet pipe body is obliquely arranged.

6. The viral aerosol transmission blocking device of claim 1, wherein: Further comprising a human body monitoring module and a fan frequency control module, the human body monitoring module and the fan frequency control module are respectively electrically connected with the main control module, and the fan frequency control module is electrically connected with the high-pressure fan; the human body monitoring module is used for detecting whether there is a person within a preset distance range of the viral aerosol transmission blocking device; the fan frequency control module is used for adjusting the frequency of the high-pressure fan to increase the wind speed of the high-pressure fan to a preset value when there is a person within the preset distance range, and adjusting the frequency of the high-pressure fan to reduce the wind speed of the high-pressure fan to stop when there is no person within the preset distance range.

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