Anti-cross infection device

Abstract

The present invention discloses an anti-cross infection device. The anti-cross infection device includes: a work surface; a protective box having a right box wall, a left box wall and a top box wall, the interior of the protective box encloses an interactive room, the work surface is horizontally placed below the protective box in the left and right directions so that the interactive room is divided into a front personnel activity area, a rear personnel activity area and a middle work surface area; an air duct having an air supply port unit arranged on the right box wall or the top box wall, a part of the air supply port unit is located corresponding to the front personnel activity area, another part is located corresponding to the rear personnel activity area, and the remaining part is located corresponding to the middle work surface area, and the return air port of the air duct is arranged at the left box wall and corresponds to the middle work surface area; a fan drives the air flow from the air supply port unit into the interactive room and then into the air duct through the return air port; an air handling module is arranged in the return air duct. The present invention blows away the gas exhaled by two people facing each other in time to reduce cross infection.

Description

Technical Field

[0001] The present invention relates to the technical field of safety and epidemic prevention equipment, and in particular to a cross-infection prevention device. Background Art

[0002] Usually, in some public places, such as hospital outpatient departments, doctors and patients usually have to communicate face to face at close range. In this way, the virus can be transmitted through droplets, contact, aerosols, etc., leading to cross-infection between doctors and patients.

[0003] At present, most of the methods are to sterilize and purify the air in public places by central air conditioning or by placing traditional air purifiers in public places. However, although these sterilization and purification methods can dilute pollutants, germs and other harmful components in the space by supplying air to public places, the process is slow. When facing a serious epidemic of infectious diseases, it is obviously unable to meet the arduous task of sterilization and purification. The air supply from central air conditioning or local air purifiers may even accelerate the air flow in the space, promoting the spread of the virus.

[0004] Even if people wear masks for protection, the virus may still attach to clothes or exposed skin, causing the virus to continue to spread and spread; and if the way of wearing masks is not standard, it will still cause cross-infection to people who communicate face to face, making people panic during communication. Summary of the invention

[0005] In order to solve the existing technical problems and reduce the risk of cross infection when people communicate face to face in public places, the purpose of the present invention is to provide an anti-cross infection device.

[0006] To achieve the above-mentioned object of the invention, one embodiment of the present invention provides a cross-infection prevention device, which includes:

[0007] A support table having a work surface and a base for supporting the work surface;

[0008] A protection box, comprising a right box wall arranged on the right side above the work surface, a left box wall arranged on the left side above the work surface, and a top box wall connecting the right box wall and the left box wall, the interior of the protection box encloses an interactive room, the front and rear sides of the protection box are respectively provided with entrances and exits for personnel to enter and exit the interactive room, the work surface is horizontally placed under the protection box in the left-right direction so that the interactive room is divided into a front personnel activity area, a rear personnel activity area and a middle work surface area;

[0009] An air duct, comprising an air supply duct arranged in the cavity of the right box wall or the top box wall, and a return air duct arranged in the cavity of the left box wall, the air supply duct having an air supply port unit, the air supply port unit being arranged on the inner wall plate of the right box wall or the top box wall, a part of the air supply port unit being located corresponding to the front personnel activity area, another part of the air supply port unit being located corresponding to the rear personnel activity area, and the remaining part of the air supply port unit being located corresponding to the middle work surface area, the return air duct having a return air port arranged on the inner wall plate of the left box wall, the position of the return air port corresponding to the middle work surface area;

[0010] A fan is disposed in the air duct and drives the airflow in the air supply duct to enter the interactive chamber from the air supply port unit and then enter the return air duct through the return air port;

[0011] The air processing module includes any one or any combination of a dust filtering unit, a deodorizing unit, a sterilizing unit, a temperature regulating unit and a humidity regulating unit, which is arranged in the return air duct, and the airflow entering the return air duct flows through the air processing module.

[0012] As a further improvement of an embodiment of the present invention, the top box wall connects the top edges of the left box wall and the right box wall, and shields the interaction chamber from above;

[0013] The protective box also has a front box wall and a rear box wall;

[0014] The front box wall connects the front edges of the left box wall and the right box wall, and forms the front personnel activity area between the front wall and the front edge of the work surface;

[0015] The rear box wall connects the respective rear edges of the left box wall and the right box wall, and forms the rear personnel activity area between the rear edge of the work surface.

[0016] As a further improvement of one embodiment of the present invention, the return air duct and the supply air duct are connected, the airflow entering the return air duct from the return air port returns to the interaction chamber through the supply air duct, and the air processing module is arranged between the suction end of the fan and the return air port.

[0017] As a further improvement of an embodiment of the present invention, the return air duct has an exhaust port, the exhaust port is arranged on the outer wall plate of the left box wall, and the return air duct is connected to the external atmospheric environment of the protective box through the exhaust port;

[0018] The air supply duct has a fresh air inlet, which is arranged on the outer wall plate of the right box wall or the top box wall. The air supply duct is connected to the external atmospheric environment of the protective box through the fresh air inlet.

[0019] As a further improvement of an embodiment of the present invention, the cross-infection prevention device includes two of the fans;

[0020] One of the two fans is a return air fan arranged in the return air duct, the return air fan is located between the air processing module and the exhaust port, its air suction end faces the air processing module and its air outlet end faces the exhaust port;

[0021] The other of the two fans is an air supply fan arranged in the air supply duct;

[0022] The anti-cross-infection device also includes a fresh air processing module, which includes any one or any combination of a dust filtering unit, a deodorization unit, a sterilization unit, a temperature adjustment unit and a humidity adjustment unit, and is arranged between the air supply fan and the air supply outlet unit. The air suction end of the air supply fan faces the fresh air outlet and the air outlet end thereof faces the fresh air processing module, so that the airflow entering the air supply duct flows through the fresh air processing module.

[0023] As a further improvement of an embodiment of the present invention, the cross-infection prevention device further includes an air outlet adjustment mechanism installed at the air outlet unit;

[0024] The air supply port unit is configured to include at least five air supply ports arranged in sequence along the front-to-back direction, wherein the at least five air supply ports are divided into a front edge air supply port, a front main air supply port, a dividing line air supply port, a rear main air supply port, and a rear edge air supply port arranged in sequence from front to back, and the position of the dividing line air supply port corresponds to the front-to-back dividing line of the work surface;

[0025] When the air outlet adjustment mechanism is in an adjustment state, the air outlet adjustment mechanism enables all the air outlets to discharge air, and makes the respective air outlet volumes or wind speeds of the front edge air outlets, the rear edge air outlets, and the dividing line air outlets greater than the respective air outlet volumes or wind speeds of the front main air outlets and the rear main air outlets.

[0026] As a further improvement of an embodiment of the present invention, the air outlet adjustment mechanism is a plurality of damper baffles provided at the corresponding air outlets, and each damper baffle can be moved relative to the inner wall plate of the right box wall to change the open area of ​​the air outlet where it is located; when the air outlet adjustment mechanism is in the adjustment state, all the air outlets in the air outlet unit are at least partially open, and the respective open areas of the front edge air outlet, the rear edge air outlet, and the dividing line air outlet are larger than the respective open areas of the front main air outlet and the rear main air outlet;

[0027] Alternatively, the air outlet adjusting mechanism is a plurality of air distribution fans which are arranged at the corresponding air supply outlets and have adjustable speeds. When each of the air distribution fans is started, it can accelerate the airflow through the air supply outlet where it is located. When the air outlet adjusting mechanism is in an adjusting state, the air distribution fans corresponding to all the air supply outlets in the air supply outlet unit are turned on, and the speed of the air distribution fans corresponding to the front edge air supply outlet, the rear edge air supply outlet, and the dividing line air supply outlet is greater than the speed of the air distribution fans corresponding to the front main air supply outlet and the rear main air supply outlet.

[0028] As a further improvement of an embodiment of the present invention, the air supply duct has a plurality of air supply outlet units arranged in a row from top to bottom on the inner wall plate of the right box wall, and each of the air supply outlet units is respectively installed with a corresponding air outlet adjustment mechanism;

[0029] When the air outlet adjusting mechanism is in the energy-saving state, the air outlet adjusting mechanism causes the front edge air outlet, the rear edge air outlet, and the dividing line air outlet in the corresponding air outlet unit to each discharge air, and the front main air outlet and the rear main air outlet each do not discharge air.

[0030] As a further improvement of one embodiment of the present invention, the cross infection prevention device further includes:

[0031] A height sensor, installed in the protection box and capable of sensing height information of people in the interactive room;

[0032] A controller having a height information receiving unit connected to the height sensor, a state control unit connected to each of the air outlet adjustment mechanisms, and a control instruction generating unit connecting the height information receiving unit and the state control unit;

[0033] Wherein, each of the air outlet adjustment mechanisms is in the energy-saving state or the adjustment state under the control of the state control unit.

[0034] As a further improvement of one embodiment of the present invention, the cross infection prevention device further includes:

[0035] A height sensor, installed in the protection box and sensing the height information of people in the interactive room;

[0036] A controller is used to receive the height information from the height sensor, and control each of the air outlet adjustment mechanisms located below the height information to be in the adjustment state and each of the air outlet adjustment mechanisms located above the height information to be in the energy-saving state according to the height information.

[0037] As a further improvement of one embodiment of the present invention, the protective box is supported on the work surface, the bottom edge of the inner wall plate of the left box wall has an upwardly concave notch, and the return air outlet is formed by the edge of the notch and the work surface.

[0038] Compared with the prior art, the present invention has the following beneficial effects: on the one hand, harmful substances in the front personnel activity area and the rear personnel activity area can be blown to the left, and harmful substances and aerosols exhaled by both parties in face-to-face communication can be taken away separately without interaction; on the other hand, the horizontal airflow from right to left in the middle work surface area is blocked, so as to further avoid the front-to-back flow of harmful substances, reduce cross infection, and realize effective protection for both parties in face-to-face communication; on the other hand, while avoiding cross infection, it can also achieve imperceptible isolation between people and avoid psychological panic. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic structural diagram of a cross-infection prevention device according to a first embodiment of the present invention;

[0040] Figure 2 It is a schematic structural diagram of part (top box wall omitted) of the anti-cross infection device of the first embodiment of the present invention;

[0041] Figure 3 is a schematic top view of a partial structure of the cross infection prevention device of the first embodiment of the present invention;

[0042] Figure 4 is a longitudinal sectional view of the cross-infection prevention device of the first embodiment of the present invention;

[0043] Figure 5 2 is a schematic diagram of the structure of the inner side of the right box wall of the anti-cross infection device of the first embodiment of the present invention;

[0044] Figure 6 It is a longitudinal sectional view of the cross infection prevention device according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0045] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0046] Ginseng Figures 1 to 5 The first embodiment of the present invention provides an anti-cross infection device 100, which can be used in situations where face-to-face communication is required, such as a hospital outpatient department, and can reduce the probability of cross infection when people communicate face to face.

[0047] The cross infection prevention device 100 includes a support platform 2 , a protection box 1 , an air duct, a fan 71 and an air processing module 81 .

[0048] The support platform 2 is usually a table for face-to-face communication, and comprises a substantially horizontal work surface 21 and a base 22 for supporting the work surface 21 .

[0049] The work surface 21 can be placed horizontally or nearly parallel to the horizontal plane (for example, slightly inclined at a small angle). People who communicate face to face can complete object delivery, document filling or other operations on the work surface 21.

[0050] Usually, the front part of the work surface 21 can be operated by one person and the rear part can be operated by another person. Therefore, for the convenience of clear expression of this embodiment, the work surface 21 is roughly divided into a front personnel operation surface S31 and a rear personnel operation surface S32, and the intersection of the front personnel operation surface S31 and the rear personnel operation surface S32 is defined as a front-to-back dividing line C0. It can be understood that the front-to-back dividing line C0 is a virtual boundary and does not necessarily exist as a real boundary. For example, in a hospital outpatient department, the part of the work surface 21 close to the doctor's side and for the doctor to place diagnostic instruments, medical records, materials and other items constitutes the front personnel operation surface S31, and the part of the work surface 21 close to the patient's side and for the patient to place his arm and sign constitutes the rear personnel operation surface S32. In the figure, the center line of the work surface 21 is used as an example of the front-to-back dividing line C0.

[0051] The lower end of the base 22 can be supported on the ground, thereby supporting the work surface 21. In the figure, the base 22 is illustrated as support legs arranged at the four corners of the work surface 21, so that the entire support platform 2 is constructed into a four-legged table structure. The specific implementation is not limited to this. For example, the support platform 2 can also be constructed into a cabinet structure, a T-shaped platform or other structural shapes.

[0052] The protection box 1 is at least partially covered above the support platform 2, and has a right box wall 13 arranged on the right side above the work surface 21, a left box wall 12 arranged on the left side above the work surface 21, and a connecting wall connecting the right box wall 13 and the left box wall 12. The interior of the protection box 1 encloses an interactive room S0 for face-to-face communication between people, that is, the left box wall 12, the right box wall 13 and the connecting wall together enclose the interactive room S0. The protection box 1 covers people who communicate face to face on the front and back sides of the support platform 2, and the people can complete the communication in the interactive room S0.

[0053] The front and rear sides of the protection box 1 are each provided with an entrance 101 for personnel to enter and exit the interactive room S0. The work surface 21 is horizontally placed under the protection box 1 in the left and right directions to divide the interactive room S0 into a front personnel activity area S1, a rear personnel activity area S2 and a middle work surface area S3.

[0054] In the embodiment of the accompanying drawings, the connecting wall specifically includes a top box wall 11, a front box wall 15 and a rear box wall 14. The top box wall 11 connects the respective top edges of the left box wall 12 and the right box wall 13, and shields the interaction room S0 from above; the front box wall 15 connects the respective front edges of the left box wall 12 and the right box wall 13, and forms a front personnel activity area S1 between the front edge of the work surface 21; the rear box wall 14 connects the respective rear edges of the left box wall 12 and the right box wall 13, and forms a rear personnel activity area S2 between the rear edge of the work surface 21; the middle work surface area S3, i.e., the space directly above the work surface 21, includes the aforementioned front personnel operating surface S31 and the rear personnel operating surface S32.

[0055] The air duct is arranged in the hollow cavity of the protection box 1 , and specifically includes an air supply duct 32 and an air return duct 31 .

[0056] In the embodiment of the accompanying drawings, the air supply duct 32 is arranged in the cavity of the right box wall 13, and can be specifically formed by the outer wall plate 132 and the inner wall plate 131 of the right box wall 13. The air supply duct 32 has an air supply port unit 4, which is arranged on the inner wall plate 131 of the right box wall 13 and extends in the front-to-back direction.

[0057] The return air duct 31 is arranged in the cavity of the left box wall 12 , and can be specifically formed by the outer wall plate 122 and the inner wall plate 121 of the left box wall 12 . The return air duct 31 has a return air port 5 arranged on the inner wall plate 121 of the left box wall 12 .

[0058] The fan 71 is arranged in the air duct, so that, driven by the fan 71, the air flow in the air supply duct 32 enters the interaction chamber S0 from the air supply port unit 4, flows from right to left in the interaction chamber S0, and then enters the return air duct 31 through the return air port 5.

[0059] The position of the return air vent 5 corresponds to the middle work surface area S3; the position of a part of the air supply vent unit 4 corresponds to the front personnel activity area S1, so that when the airflow in the air supply duct 32 passes through the part of the air supply vent unit 4 and blows into the interactive room S0, it directly enters the front personnel activity area S1 and carries the harmful substances in the front personnel activity area S1 and flows from right to left to the return air vent 5; the position of another part of the air supply vent unit 4 corresponds to the rear personnel activity area S2, so that the airflow in the air supply duct 32 passes through the part of the air supply vent unit 4 and blows into the interactive room S0. When part of the air supply outlet unit 4 blows into the interactive room S0, it directly enters the rear personnel activity area S2, and carries the harmful substances in the rear personnel activity area S2 and flows from right to left to the return air outlet 5; the position of the remaining part of the air supply outlet unit 4 corresponds to the middle work surface area S3, so that when the airflow in the air supply duct 32 blows into the interactive room S0 through this part of the air supply outlet unit 4, it directly enters the middle work surface area S3, and carries the harmful substances in the middle work surface area S3 and flows from right to left to the return air outlet 5.

[0060] In this way, through the position arrangement of the air supply port unit 4, on the one hand, the harmful substances inside the front personnel activity area S1 and the rear personnel activity area S2 can be blown to the left, and the harmful substances and aerosols exhaled by both parties in face-to-face communication can be taken away separately without interaction. On the other hand, the horizontal airflow from right to left through the middle work surface area S3 is blocked to further avoid the front and back flow of harmful substances, reduce cross infection, and achieve effective protection for both parties in face-to-face communication. On the other hand, while avoiding cross infection, it can also achieve imperceptible isolation between people to avoid psychological panic.

[0061] An air treatment module 81 is arranged in the return air duct 31, and the air treatment module 81 includes any one or any combination of a dust filtration unit, a deodorization unit, a sterilization unit, a temperature control unit and a humidity control unit, so that the airflow entering the return air duct 31 through the return air port 5 flows through the air treatment module 81 to remove harmful substances in the airflow, further avoid the diffusion and spread of harmful substances, and reduce the incidence of infectious diseases.

[0062] The dust filter unit is used to remove particulate matter in the air, and the specific structure can adopt a known filter device capable of removing particulate matter; the deodorization unit is used to remove harmful gases in the air, and the specific structure can adopt a known device capable of removing particulate matter, such as a semi-permeable membrane carrying an absorbent; the sterilization unit is used to remove bacteria and viruses in the air, and specifically can adopt ozone, ultraviolet or other known sterilization devices; the temperature adjustment unit is used to adjust the air temperature, and specifically can be set as a heater, a refrigerator, etc.; the humidity adjustment unit is used to adjust the air humidity, and specifically can be set as a water mist humidifier, a dryer, etc. These units can be set according to the needs, and will not be described in detail.

[0063] In the preferred embodiment shown in the figure, the air supply duct 32 is arranged in the cavity of the right box wall 13, and the corresponding air supply outlet unit 4 is arranged on the inner wall plate 131 of the right box wall 13, thereby realizing that the airflow in the interactive chamber S0 flows from right to left, and preventing harmful substances from flowing in the front-to-back direction. In an alternative embodiment, the air supply duct 32 can also be arranged in the cavity of the top box wall 11, and the corresponding air supply outlet unit 4 is arranged on the inner wall plate 111 of the top box wall 11, thereby realizing that the airflow in the interactive chamber S0 flows from top to the lower left, and can also prevent harmful substances from flowing in the front-to-back direction to a certain extent, achieving the effect of preventing cross infection.

[0064] Furthermore, in the present embodiment, the return air duct 31 and the air supply duct 32 are connected, and the airflow entering the return air duct 31 from the return air port 5 returns to the interaction chamber S0 through the air supply duct 32. Specifically, the air duct also includes a connecting air duct 33, which is arranged in any one or more of the top box wall 11, the front box wall 15 and the rear box wall 14, preferably arranged in the top box wall 11, the left end of the connecting air duct 33 is connected to the return air duct 31 and the right end of the connecting air duct 33 is connected to the air supply duct 32, and the air treatment module 81 is arranged between the air suction end of the fan 71 and the return air port 5, that is, the airflow flowing into the return air duct 31 from the return air port 5 first passes through the air treatment module 81, and then passes through the fan 71, so as to facilitate the airflow containing harmful substances flowing into the return air duct 31 to be sterilized and purified first, so as to avoid the harmful substances carried in the airflow when the airflow first flows through the fan 71 and adhere to the fan 71 to cause pollution and long-term hidden dangers.

[0065] Furthermore, the number of the air outlet units 4 can be specifically set to one or more. In the embodiment of the accompanying drawings, the number of the air outlet units 4 is multiple, that is, the air supply duct 32 has a plurality of air outlet units 4 on the inner wall plate 131 of the right box wall 13 and arranged in rows from top to bottom (it can be understood that in the aforementioned variation in which the air outlet units 4 are arranged on the top box wall 11, the plurality of air outlet units 4 are arranged in rows from left to right on the inner wall plate of the top box wall 11). The number of the air outlet units 4 in the figure is set to 6.

[0066] Each air outlet unit 4 is configured to have at least five air outlets 41 arranged in sequence along the front-to-back direction, and the at least five air outlets 41 are divided into a front edge air outlet 41a, a front main air outlet 41d, a dividing line air outlet 41c, a rear main air outlet 41e and a rear edge air outlet 41b arranged in sequence from front to back, and the position of the dividing line air outlet 41c corresponds to the front-to-back dividing line C0 of the work surface 21. In the figure, the number of air outlets 41 of each air outlet unit 4 is illustrated as 11, and the 11 air outlets 41 are arranged in sequence along the front-to-back direction, including a front edge air outlet 41a, four front main air outlets 41d, a dividing line air outlet 41c, four rear main air outlets 41e and one rear edge air outlet 41b from front to back. Of course, this is only a specific example, and the actual number is not limited to this. For example, the number of front edge air outlets 41a, front main air outlets 41d, dividing line air outlets 41c, rear main air outlets 41e and rear edge air outlets 41b are not limited to this example.

[0067] Furthermore, the cross-infection prevention device 100 also includes an air outlet adjustment mechanism 6 installed at the air outlet unit 4. Preferably, each air outlet unit 4 is respectively installed with a corresponding air outlet adjustment mechanism 6.

[0068] The air outlet adjustment mechanism 6 can be used to adjust the air outlet state of the air outlet unit 4, which can specifically have an adjustment state and an energy-saving state.

[0069] When a certain air outlet adjustment mechanism 6 is in the said adjustment state, the air outlet adjustment mechanism 6 causes all the air outlets 41 of the corresponding air outlet unit 4 to discharge air, and the respective air outlet volumes or wind speeds of the front edge air outlet 41a, the rear edge air outlet 41b, and the dividing line air outlet 41c are greater than the respective air outlet volumes or wind speeds of the front main air outlet 41d and the rear main air outlet 41e.

[0070] In this way, the air volume or wind speed of the front edge air supply port 41a is greater than the air volume or wind speed of the front main air supply port 41d, thereby realizing air curtain isolation of the front personnel activity area S1 from the front (such as the air flow F1 in the figure), preventing the harmful air flow in the front personnel activity area S1 from passing through the entrance 101 on the front side of the protection box 1 and flowing out of the interaction room S0 under the blowing of the front main air supply port 41d, thereby preventing the harmful substances from spreading into the external atmospheric environment and causing the widespread spread of diseases; similarly, the rear The air volume or wind speed of the edge air outlet 41b is greater than the air volume or wind speed of the rear main air outlet 41e, thereby realizing air curtain isolation of the rear personnel activity area S2 from the rear (such as the air flow F2 in the figure), avoiding the harmful air flow in the rear personnel activity area S2 from passing through the entrance 101 on the rear side of the protection box 1 and flowing out of the interaction room S0 under the blowing of the rear main air outlet 41e, thereby avoiding the spread of harmful substances into the external atmospheric environment and causing the widespread spread of diseases; at the same time, the dividing line air outlet 41c The air volume or wind speed is greater than the air volume or wind speed of the front main air supply outlet 41d and the rear main air supply outlet 41e, further realizing the air curtain isolation between the rear personnel activity area S2 and the front personnel activity area S1 (such as the airflow F3 in the figure), avoiding the interaction of airflow between the two, and further reducing the probability of cross infection; further, the front main air supply outlet 41d and the rear main air supply outlet 41e respectively maintain air outlet, so that the harmful substances exhaled by the personnel can be taken away in time through the air flow, avoiding the formation of aerosols and avoiding the attachment of harmful substances to the personnel's clothes, work surfaces 21 or other items in the activity area, reducing the probability of harmful substances being taken out of the interaction room S0 with the personnel, and also reducing the risk of harmful substances endangering the next person entering the interaction room S0; while maintaining the air outlet of the front main air supply outlet 41d and the rear main air supply outlet 41e, the two maintain a relatively low air volume or wind speed, and also avoid strong wind causing physical discomfort to the personnel, while improving the sense of security of the personnel and ensuring the comfort of the personnel.

[0071] When a certain air outlet regulating mechanism 6 is in the energy-saving state, the air outlet regulating mechanism 6 causes the front edge air outlet 41a, the rear edge air outlet 41b, and the dividing line air outlet 41c of the corresponding air outlet unit 4 to each discharge air, while the front main air outlet 41d and the rear main air outlet 41e each do not discharge air.

[0072] Specifically, in the embodiment of the accompanying drawings, the air outlet adjustment mechanism 6 is a plurality of dampers movably arranged at the corresponding air outlets 41. Preferably, one damper is arranged at each air outlet 41. Each damper can move (such as slide or rotate) relative to the inner wall plate 131 of the right box wall 13 to change the open area of ​​the air outlet 41 where it is located. The larger the open area, the greater the air volume that can pass through.

[0073] When a certain air outlet adjustment mechanism 6 is in the adjustment state, the air outlet adjustment mechanism 6 makes all the air outlets 41 of the corresponding air outlet unit 4 discharge air, that is, the front edge air outlet 41a, the rear edge air outlet 41b, the front main air outlet 41d, the rear main air outlet 41e and the dividing line air outlet 41c are at least partially open, and the respective open areas of the front edge air outlet 41a, the rear edge air outlet 41b and the dividing line air outlet 41c are larger than the respective open areas of the front main air outlet 41d and the rear main air outlet 41e. When a certain air outlet adjustment mechanism 6 is in the energy-saving state, the front edge air outlet 41a, the rear edge air outlet 41b and the dividing line air outlet 41c of the corresponding air outlet unit 4 are at least partially opened by their respective air dampers, while the front main air outlet 41d and the rear main air outlet 41e are completely shielded by their respective air dampers.

[0074] The above describes the implementation of the air outlet adjustment mechanism 6 shown in the figure as a plurality of damper baffles. In a variant embodiment, the air outlet adjustment mechanism 6 can also be a plurality of air distribution fans arranged at the corresponding air outlets 41 and having adjustable speeds. Preferably, one air distribution fan is arranged at each air outlet 41. When each of the air distribution fans is started, it accelerates the airflow through the air outlet 41 where it is located. By adjusting the speed of the air distribution fan, the wind speed through the air outlet 41 where it is located can be adjusted. When the speed of the air distribution fan is higher, the wind speed at the air outlet 41 where it is located is also higher.

[0075] Correspondingly, in this variant embodiment, when a certain air outlet adjustment mechanism 6 is in the described adjustment state, the air outlet adjustment mechanism 6 causes all the air outlets 41 of the corresponding air outlet unit 4 to discharge air, that is, the corresponding air distribution fans of the front edge air outlet 41a, the rear edge air outlet 41b, the front main air outlet 41d, the rear main air outlet 41e and the dividing line air outlet 41c are all turned on, and the rotation speed of the corresponding air distribution fans of the front edge air outlet 41a, the rear edge air outlet 41b, and the dividing line air outlet 41c is greater than the rotation speed of the corresponding air distribution fans of the front main air outlet 41d and the rear main air outlet 41e. When a certain air outlet adjustment mechanism 6 is in the energy-saving state, the air distribution fans corresponding to the front edge air supply outlet 41a, the rear edge air supply outlet 41b, and the dividing line air supply outlet 41c of the corresponding air supply outlet unit 4 are all turned on, while the air distribution fans corresponding to the front main air supply outlet 41d and the rear main air supply outlet 41e are all turned off.

[0076] Thus, on the one hand, by setting a plurality of air outlet units 4, it can be ensured that the air outlet covers a larger area in the up and down directions, so as to realize a larger range or even all-round air flow blowing in the interactive room S0, so that the harmful substances in the interactive room S0 are fully taken away; on the other hand, by setting the adjustment state and the energy-saving state, the front edge air outlet 41a, the rear edge air outlet 41b, and the dividing line air outlet 41c of all the air outlet units 4 can be in the blowing state, that is, Figure 5 All front edge air outlets 41a in zone A are blowing air, all rear edge air outlets 41b in zone B are blowing air, and all dividing line air outlets 41c in zone C are blowing air, so that the three air curtains F1, F2 and F3 corresponding to zones A, B and C have relatively large spans in the vertical direction, ensuring the isolation effect of the air curtains.

[0077] Preferably, the cross infection prevention device 100 further includes a height sensor and a controller.

[0078] The height sensor is installed in the protection box 1 and can sense the height information of people in the interactive room S0. It can be specifically configured as an infrared sensor, a distance sensor, an image collector, and other sensing components.

[0079] The controller has a height information receiving unit, a state control unit and a control instruction generating unit. The height information receiving unit is connected to the height sensor to receive the height information sensed by the height sensor; the state control unit is connected to each air outlet adjustment mechanism 6 to control the state of each air outlet adjustment mechanism 6, including controlling each air outlet adjustment mechanism 6 to be in the adjustment state or the energy-saving state; and the control instruction generating unit connects the height information receiving unit and the state control unit to match the height information with the control instruction of the state control unit, that is, to generate the control instruction according to the height information.

[0080] Specifically, after the height sensor senses the height information of the person in the interactive room S0, the controller can receive the height information from the height sensor, and control the air outlet adjustment mechanism 6 corresponding to each air outlet unit 4 whose position is lower than the height information to be in the adjustment state according to the height information, and control the air outlet adjustment mechanism 6 corresponding to each air outlet unit 4 whose position is higher than the height information to be in the energy-saving state. That is, the control instruction generation unit generates a corresponding control instruction according to the height information, and the control instruction is specifically that the air outlet adjustment mechanism 6 corresponding to each air outlet unit 4 whose position is lower than the height information is in the adjustment state, and the air outlet adjustment mechanism 6 corresponding to each air outlet unit 4 whose position is higher than the height information is in the energy-saving state.

[0081] For example, the height sensor senses that the height of the person in the interactive room S0 is 1.6m. Figure 5 Among the 6 air outlet units 4 shown, the height of the lower three air outlet units 4 from the ground is lower than 1.6m, while the height of the upper three air outlet units 4 from the ground is higher than 1.6m. The controller controls the air outlet regulating mechanisms 6 corresponding to the lower three air outlet units 4 to be in the regulating state, while the air outlet regulating mechanisms 6 corresponding to the upper three air outlet units 4 to be in the energy-saving state, according to the height information 1.6m. That is, the front main air outlets 41d and the rear main air outlets 41e of the lower three air outlet units 4 discharge air, while the front main air outlets 41d and the rear main air outlets 41e of the upper three air outlet units 4 do not discharge air. In this way, it can be ensured that the area where the personnel are located is covered by the outlet airflow to take away the harmful substances exhaled by the personnel, while it also avoids unnecessary air blowing above the heads of the personnel to avoid energy waste.

[0082] Furthermore, the protective box 1 is supported on the work surface 21, and the bottom edge of the inner wall plate 121 of the left box wall 12 has an upwardly concave notch, and the return air outlet 5 is formed by the edge of the notch and the work surface 21. In this way, when the airflow in the interaction room S0 flows from right to the lower left (or from top to the lower left in the variant embodiment) to the return air outlet 5, it flows smoothly into the return air outlet 5 along the work surface 21, improving the smoothness of the flow and avoiding the formation of a vortex at the left end of the work surface 21 caused by the return air outlet 5 being close to the top.

[0083] Compared with the prior art, the beneficial effects of this embodiment are:

[0084] (1) On the one hand, the harmful substances in the front personnel activity area S1 and the rear personnel activity area S2 can be blown to the left, and the harmful substances and aerosols exhaled by the two parties in face-to-face communication can be taken away separately without interaction. On the other hand, the airflow from right to left through the middle work surface area S3 can be blocked to further prevent the flow of harmful substances back and forth, reduce cross infection, and effectively protect the two parties in face-to-face communication. On the other hand, while avoiding cross infection, it can also achieve non-sensing isolation between people and avoid psychological panic.

[0085] (2) By adjusting the air outlet of the air supply unit 4, air curtain isolation is achieved at the front, middle and rear to avoid cross infection and virus spread. At the same time, it can also prevent strong winds from causing physical discomfort to personnel, enhance the sense of security of personnel, ensure the comfort of personnel, and take into account energy saving and consumption reduction.

[0086] Ginseng Figure 6, a cross infection prevention device 100 according to the second embodiment of the present invention is provided, and the second embodiment is different from the first embodiment in the specific structure of the air duct and the structure of the accessories in the air duct. Only the difference is introduced below, and the rest of the technical content is the same as the first embodiment and will not be repeated.

[0087] Different from the structure in which the air supply duct 32 and the return air duct 31 are connected in the first embodiment, in the second embodiment, the return air duct 31 and the air supply duct 32 are relatively independent of each other. Specifically, the return air duct 31 has an exhaust port, which is arranged at the outer wall plate of the left box wall 12, and the return air duct 31 is connected to the external atmospheric environment of the protective box 1 through the exhaust port; while the air supply duct 32 has a fresh air port 42, which is arranged at the outer wall plate 132 of the right box wall 13 or the outer wall plate 112 of the top box wall 11 as shown in the figure, and the air supply duct 32 is connected to the external atmospheric environment of the protective box 1 through the fresh air port 42. Compared with the first embodiment, after the airflow of the interactive room S0 in this embodiment flows into the return air duct 31, it no longer circulates back to the interactive room S0 through the air supply duct 32, but is discharged after being disinfected and purified. At the same time, the airflow entering the interactive room S0 comes from the fresh air from the outside introduced by the fresh air port 42, which reduces the risk of harmful substances in the airflow that have not been effectively removed returning to the interactive room S0 again and causing cross infection of personnel.

[0088] Furthermore, the anti-cross-infection device 100 includes two fans, one of which is a return air fan 71 arranged in the return air duct 31; the return air fan 71 is located between the air treatment module 81 and the exhaust port, with its suction end facing the air treatment module 81 and its outlet end facing the exhaust port, so that the airflow of the interaction room S0 flows into the return air duct 31 and then is purified to prevent harmful substances in the airflow from entering the external atmospheric environment and causing the spread of disease.

[0089] The other of the two fans is an air supply fan 72 disposed in the air supply duct 32. The cross-infection prevention device 100 further includes a fresh air processing module 82 disposed between the air supply fan 72 and the air supply outlet unit 4. The air suction end of the air supply fan 72 faces the fresh air outlet 42 and the air outlet end faces the fresh air processing module 82. In this way, the airflow entering the return air duct 31 flows through the fresh air processing module 82 and enters the interaction room S0 in the form of clean airflow, thereby reducing the probability of people in the interaction room S0 being exposed to harmful substances; and the airflow entering the air supply duct 32 from the fresh air outlet 42 first flows through the air supply fan 72, then passes through the fresh air processing module 82, and then enters the interaction room S0, thereby preventing harmful substances attached to the air supply fan 72 from being blown into the interaction room S0.

[0090] Among them, similar to the air processing module 81 in the first embodiment, the air processing module 81 and the fresh air processing module 82 in this embodiment can each include any one or any combination of a dust filtering unit, a deodorizing unit, a sterilizing unit, a temperature regulating unit and a humidity regulating unit. Among them, the dust filtering unit is used to remove particulate matter in the air, and the specific structure can adopt a known filter device that can remove particulate matter; the deodorizing unit is used to remove harmful gases in the air, and the specific structure can adopt a known device that can be used to remove particulate matter, such as a semi-permeable membrane carrying an adsorbent; the sterilizing unit is used to remove bacteria and viruses in the air, and can specifically use ozone, ultraviolet or other known sterilizing devices; the temperature regulating unit is used to adjust the air temperature, and can specifically be set as a heater, a refrigerator, etc.; the humidity regulating unit is used to adjust the air humidity, and can specifically be set as a water mist humidifier, a dryer, etc. These units can be set according to needs, and will not be repeated.

[0091] The detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cross infection prevention device, characterized in that: include: A support table having a work surface and a base for supporting the work surface; A protection box, comprising a right box wall arranged on the right side above the work surface, a left box wall arranged on the left side above the work surface, and a top box wall connecting the right box wall and the left box wall, the interior of the protection box encloses an interactive room, the front and rear sides of the protection box are respectively provided with entrances and exits for personnel to enter and exit the interactive room, the work surface is horizontally placed under the protection box in the left-right direction so that the interactive room is divided into a front personnel activity area, a rear personnel activity area and a middle work surface area; An air duct, comprising an air supply duct arranged in the cavity of the right box wall or the top box wall, and a return air duct arranged in the cavity of the left box wall, the air supply duct having an air supply port unit, the air supply port unit being arranged on the inner wall plate of the right box wall or the top box wall, a part of the air supply port unit being located corresponding to the front personnel activity area, another part of the air supply port unit being located corresponding to the rear personnel activity area, and the remaining part of the air supply port unit being located corresponding to the middle work surface area, the return air duct having a return air port arranged on the inner wall plate of the left box wall, the position of the return air port corresponding to the middle work surface area; A fan is disposed in the air duct and drives the airflow in the air supply duct to enter the interactive chamber from the air supply port unit and then enter the return air duct through the return air port; An air processing module, including any one or any combination of a dust filtering unit, a deodorizing unit, a sterilizing unit, a temperature regulating unit and a humidity regulating unit, which is arranged in the return air duct, and the airflow entering the return air duct flows through the air processing module; The return air duct has an exhaust port, which is arranged on the outer wall plate of the left box wall, and the return air duct is connected to the external atmospheric environment of the protective box through the exhaust port; The air supply duct has a fresh air inlet, which is arranged on the outer wall plate of the right box wall or the top box wall, and the air supply duct is connected to the external atmospheric environment of the protective box through the fresh air inlet; The cross infection prevention device further comprises an air outlet adjustment mechanism installed at the air outlet unit; The air supply port unit is configured to include at least five air supply ports arranged in sequence along the front-to-back direction, wherein the at least five air supply ports are divided into a front edge air supply port, a front main air supply port, a dividing line air supply port, a rear main air supply port, and a rear edge air supply port arranged in sequence from front to back, and the position of the dividing line air supply port corresponds to the front-to-back dividing line of the work surface; When the air outlet adjustment mechanism is in an adjustment state, the air outlet adjustment mechanism enables all the air outlets to discharge air, and makes the respective air outlet volumes or wind speeds of the front edge air outlets, the rear edge air outlets, and the dividing line air outlets greater than the respective air outlet volumes or wind speeds of the front main air outlets and the rear main air outlets.

2. The cross infection prevention device according to claim 1, characterized in that: The top box wall connects the top edges of the left box wall and the right box wall, and shields the interaction room from above; The protective box also has a front box wall and a rear box wall; The front box wall connects the front edges of the left box wall and the right box wall, and forms the front personnel activity area between the front wall and the front edge of the work surface; The rear box wall connects the respective rear edges of the left box wall and the right box wall, and forms the rear personnel activity area between the rear edge of the work surface.

3. The cross infection prevention device according to claim 2, characterized in that: The return air duct is connected to the supply air duct, and the airflow entering the return air duct from the return air port returns to the interaction chamber through the supply air duct. The air processing module is arranged between the air suction end of the fan and the return air port.

4. The cross infection prevention device according to claim 1, characterized in that: The cross infection prevention device comprises two fans; One of the two fans is a return air fan arranged in the return air duct, the return air fan is located between the air processing module and the exhaust port, its air suction end faces the air processing module and its air outlet end faces the exhaust port; The other of the two fans is an air supply fan arranged in the air supply duct; The anti-cross-infection device also includes a fresh air processing module, which includes any one or any combination of a dust filtering unit, a deodorization unit, a sterilization unit, a temperature adjustment unit and a humidity adjustment unit, and is arranged between the air supply fan and the air supply outlet unit. The air suction end of the air supply fan faces the fresh air outlet and the air outlet end thereof faces the fresh air processing module, so that the airflow entering the air supply duct flows through the fresh air processing module.

5. The cross infection prevention device according to claim 1, characterized in that: The air outlet adjustment mechanism is a plurality of damper baffles provided at the corresponding air outlets, each damper baffle being movable relative to the inner wall plate of the right box wall to change the open area of ​​the air outlet where it is located; when the air outlet adjustment mechanism is in the adjustment state, all the air outlets in the air outlet unit are at least partially open, and the respective open areas of the front edge air outlet, the rear edge air outlet, and the dividing line air outlet are larger than the respective open areas of the front main air outlet and the rear main air outlet; Alternatively, the air outlet adjusting mechanism is a plurality of air distribution fans which are arranged at the corresponding air supply outlets and have adjustable speeds. When each of the air distribution fans is started, it can accelerate the airflow through the air supply outlet where it is located. When the air outlet adjusting mechanism is in an adjusting state, the air distribution fans corresponding to all the air supply outlets in the air supply outlet unit are turned on, and the speed of the air distribution fans corresponding to the front edge air supply outlet, the rear edge air supply outlet, and the dividing line air supply outlet is greater than the speed of the air distribution fans corresponding to the front main air supply outlet and the rear main air supply outlet.

6. The cross infection prevention device according to claim 1, characterized in that: The air supply duct has a plurality of air supply outlet units arranged in a row from top to bottom on the inner wall plate of the right box wall, and each of the air supply outlet units is respectively equipped with a corresponding air outlet adjustment mechanism; When the air outlet adjusting mechanism is in the energy-saving state, the air outlet adjusting mechanism causes the front edge air outlet, the rear edge air outlet, and the dividing line air outlet in the corresponding air outlet unit to each discharge air, and the front main air outlet and the rear main air outlet each do not discharge air.

7. The cross infection prevention device according to claim 6, characterized in that: The cross infection prevention device also includes: A height sensor, installed in the protection box and sensing the height information of people in the interactive room; A controller is used to receive the height information from the height sensor, and control each of the air outlet adjustment mechanisms located below the height information to be in the adjustment state and each of the air outlet adjustment mechanisms located above the height information to be in the energy-saving state according to the height information.

8. The cross infection prevention device according to claim 1, characterized in that: The protection box is supported on the work surface, the bottom edge of the inner wall plate of the left box wall has an upwardly recessed notch, and the return air outlet is formed by the edge of the notch and the work surface.

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