阅读说明：本技术 一种平行缝隙式风帘隔离系统 (Parallel gap type air curtain isolation system ) 是由 赖秀珍 苏秋卫 张昀 于 2020-06-04 设计创作，主要内容包括：本发明公开了一种平行缝隙式风帘隔离系统,包括送风装置、风帘装置和集风装置,送风装置将风送入风帘装置,风帘装置排出的风吹向集风装置,所述风帘装置包括外槽、纵向导流板A、U型导流板和纵向导流板B,外槽的槽底部开有进风口；纵向导流板A、U型导流板和纵向导流板B安装在外槽内,U型导流板和纵向导流板A之间的缝隙为出风口A,U型导流板和纵向导流板B之间的缝隙为出风口B。由于风帘装置采用两条相邻平行缝隙式出风口的结构,形成的风幕比单条缝隙更厚,两条风幕会受外侧的空气挤压而逐渐靠拢变窄,有利于集风器的过滤处理,两条风幕间内侧的气流会相互扰动加速,风帘装置形成的一道完整风幕,具有很好的空气阻隔效果。(The invention discloses a parallel gap type air curtain isolation system which comprises an air supply device, an air curtain device and an air collecting device, wherein the air supply device supplies air into the air curtain device, the air discharged by the air curtain device is blown to the air collecting device, the air curtain device comprises an outer groove, a longitudinal guide plate A, U type guide plate and a longitudinal guide plate B, and the bottom of the outer groove is provided with an air inlet; the longitudinal guide plate A, U type guide plate and the longitudinal guide plate B are installed in the outer tank, the gap between the U-shaped guide plate and the longitudinal guide plate A is an air outlet A, and the gap between the U-shaped guide plate and the longitudinal guide plate B is an air outlet B. Because the air curtain device adopts the structure of two adjacent parallel gap formula air outlets, the air curtain that forms is thicker than the list gap, and two air curtains can receive the air extrusion in the outside and draw close gradually and narrow down, are favorable to the filtration processing of collection wind ware, and the inboard air current can be disturbed each other between two air curtains and accelerate, and a complete air curtain that the air curtain device formed has fine air separation effect.)

1. The utility model provides a parallel slot formula air curtain isolated system, includes air supply arrangement, air curtain device and collection wind device, air supply arrangement sends into the air curtain device with wind, and air curtain device exhaust wind blows to collection wind device, its characterized in that: the air curtain device comprises an outer groove, a longitudinal guide plate A, U type guide plate and a longitudinal guide plate B, wherein an air inlet is formed in the bottom of the outer groove; the longitudinal guide plate A, U type guide plate and the longitudinal guide plate B are arranged in the outer tank, a gap between the U-shaped guide plate and the longitudinal guide plate A is an air outlet A, a gap between the U-shaped guide plate and the longitudinal guide plate B is an air outlet B, and the air outlet A and the air outlet B are two parallel gaps; the U-shaped guide plates are more than one, and when the U-shaped guide plates are more than two, gaps between the adjacent U-shaped guide plates also form air outlets.

2. The parallel gap curtain isolation system of claim 1 wherein: the top of the longitudinal guide plate A is provided with a transverse connecting plate A, and the top of the longitudinal guide plate B is provided with a transverse connecting plate B; the outer groove is of a cuboid structure with an open top surface, the transverse connecting plate A is fixedly connected to the top of one side edge of the outer groove through screws, and the transverse connecting plate B is fixedly connected to the top of the other side edge of the outer groove through screws; the longitudinal guide plate A is fixedly connected with the side wall A of the U-shaped guide plate through screws, and the side wall B of the U-shaped guide plate is fixedly connected with the longitudinal guide plate B through screws.

3. The parallel gap curtain isolation system of claim 2 wherein: the upper part of the plate surface of the longitudinal guide plate A is provided with sound-absorbing cotton, and the lower part of the plate surface of the longitudinal guide plate A is distributed with a plurality of air guide holes; the sound absorbing cotton is arranged on the upper portion of the plate surface of the longitudinal guide plate B, a plurality of air guide holes are distributed on the lower portion of the plate surface of the longitudinal guide plate B, the sound absorbing cotton is arranged on the upper portion of the side wall A and the upper portion of the side wall B in the U-shaped guide plate and the inner surface of the top of the U-shaped guide plate, the air guide holes A are distributed on the lower portion of the side wall A in the U-shaped guide plate and are staggered with the air guide holes in the guide plate A, the air guide holes B are distributed on the lower portion of the side wall B in the U-shaped guide plate.

4. The parallel gap curtain isolation system of claim 3 wherein: the top of the both sides wall of outer groove is equipped with interval distribution's fixed ear, fixed ear is used for through screw and decorative board fixed connection.

5. The parallel gap curtain isolation system of claim 1 wherein: and an air filtering device is arranged in the air supply device or the air collecting device.

6. The parallel gap curtain isolation system of claim 5 wherein: the air collecting device include quick-witted case, wind-collecting cover and air exhauster, the lower port of machine case is equipped with into the wind gap, and the upper port is equipped with the air outlet, and the upper port department of machine case is equipped with HEPA sub-high efficiency filter screen, air filtering device include guide roller set, filter cloth book, retreat around the axle and wind the cloth axle, the air exhauster be located the wind-collecting cover, the wind-collecting cover is installed at quick-witted incasement, guide roller set establish at quick-witted incasement and be located the outer both sides of wind-collecting cover, retreat around the axle and establish at quick-witted incasement and be located the outer both sides of wind-collecting cover around the cloth axle, the centre bore interlude of filter cloth book is on retreating epaxially, when filter cloth one end on the filter cloth book was walked around from the guide roller set, the filter cloth.

7. The parallel gap curtain isolation system of claim 6 wherein: the cloth winding shaft adopts a manual mode or an electric mode; the electric mode comprises a stepping motor and a controller, wherein the stepping motor is connected with the cloth winding shaft, and the controller is used for controlling the rotation number of turns of the stepping motor so as to control the winding amount of the filter cloth.

8. The parallel gap curtain isolation system of claim 6 wherein: the air inlet port department of air-collecting cover is equipped with the air flow equalizing board, the face distribution of air flow equalizing board has a plurality of rectangular slot formula ventilation holes.

9. The parallel gap curtain isolation system of any one of claims 1-8 wherein: the air supply device is communicated with an air inlet of the air curtain device through the horn mouth type connector, more than two left side transverse guide plates are distributed on the inner wall surface of the left side from bottom to top in the horn mouth type connector, more than two right side transverse guide plates are distributed on the inner wall surface of the right side from bottom to top, the left side transverse guide plates and the right side transverse guide plates are distributed in a staggered mode, the widths of the left side transverse guide plates and the right side transverse guide plates are smaller than the distance between the inner wall surface of the left side and the inner wall surface of the right side, and are larger than one half of the distance between the inner wall surface of the left.

10. The parallel gap curtain isolation system of claim 9 wherein: an air pressure sensor A and an air pressure sensor B are respectively arranged in the air collecting device and the air curtain device, the air pressure sensor A and the air pressure sensor B respectively transmit the air pressure of the air collecting device and the air curtain device to a controller, and the controller performs variable speed control on a fan in the air supply device and an exhaust fan in the air collecting device according to the air pressure value so as to regulate and control the air pressure value in the air curtain device and the air curtain device to be constant; an ultraviolet germicidal lamp is installed in the case.

Technical Field

The invention relates to the technical field of air curtains, in particular to an air curtain isolation system.

Background

The air curtain isolation system in the existing market is not provided with filter cloth for filtering air, so that the air curtain isolation system only has the air curtain isolation effect and does not have the perfect air filtering and sterilizing effect, and an individual air curtain isolation system is provided with a filter screen, but the filter screen can be updated only when being generally damaged and maintained, and the filter screen can only filter large-particle dust and does not have the virus filtering function.

In addition, the existing air curtain device is mostly provided with a row of air outlet holes on the shell, and the air is blown outwards through the air outlet holes to form an air curtain.

For example, the patent document with publication number CN207674680U is disclosed by the national intellectual property office in 2018, 07/31, the utility model provides a jet flow air curtain machine, including casing, fan, kuppe, nozzle and surface air cooler be provided with air intake and air outlet on the casing, the fan set up in the casing and be located the air intake with between the air outlet, the nozzle is connected air outlet position department on the casing, the kuppe is connected the air outlet with between the air-out pipeline of fan, the air current that the fan produced passes through in proper order the kuppe with the nozzle, the surface air cooler sets up the fan with between the air intake. The jet flow air curtain machine is arranged above a doorway in a room, and airflow blows down from the right upper part of the doorway in the room to form an invisible air curtain to separate indoor and outdoor air, so that the loss of cold or heat in the room is prevented, and meanwhile, outdoor air and dust are prevented from entering the room. The nozzle adopts an inner spherical design and an outer spherical design, can be adjusted universally, has randomly adjusted jet flow direction, is simple and convenient, is flexible and mobile, and can realize large-dip-angle injection.

For another example, the patent document with publication number CN109631224A is disclosed by the national intellectual property office in 2019, 04, 16.a isolation examination table based on air curtain isolation is characterized by comprising: the control main board, the top cover, the two fan boxes, the working table and the support frame; the two ends of the top cover are respectively communicated with the tops of the two fan boxes, the bottoms of the two fan boxes are respectively communicated with the top surfaces of the left side and the right side of the supporting frame, and a circulating air duct is formed among the top cover, the two fan boxes and the supporting frame; the working table is arranged between the two fan boxes and the support frame, and a strip-shaped air outlet is formed in the working table, so that air in the circulating air duct passes through the strip-shaped air outlet to form an air curtain; the fan box comprises a sensor, a fan control box, a fan and a sterilization module; the sensor is electrically connected with the control mainboard; the fan control box is respectively and electrically connected with the control mainboard and the fan; the sensor is used for collecting PM2.5 concentration information in the air and sending the collected PM2.5 concentration information to the control main board; the control main board is used for sending a control instruction to the fan control box according to the collected PM2.5 concentration information, so that the fan control box controls the rotating speed of the fan to adjust the air outlet speed of the air curtain. The top cap two fan boxes with form the circulation wind channel between the support frame, specifically do: the bottoms of the two fan boxes are respectively connected with the top surfaces of the left side and the right side of the support frame, the top cover is erected at the tops of the two fan boxes and is connected with the two fan boxes, the top cover is provided with a top cavity, the fan boxes are provided with a middle cavity, the support frame is provided with a bottom cavity, and the top cavity, the middle cavity and the bottom cavity are sequentially communicated to form the circulating air duct; the top cavity is provided with an air suction opening, and the fan and the sterilizing module are arranged in the middle cavity. An air duct groove communicated with the bottom cavity is formed in the supporting frame; the strip-shaped air outlet is opposite to the notch of the air duct groove, so that air in the circulating air duct passes through the strip-shaped air outlet to form an air curtain. The patent technology has the defects that the air flow at the air outlet is not uniform in practical application, a complete air curtain cannot be formed, and the air blocking effect is poor.

Disclosure of Invention

In order to overcome the above disadvantages, the present invention provides a parallel slit type air curtain isolation system with good air blocking effect.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a parallel gap type air curtain isolation system comprises an air supply device, an air curtain device and an air collecting device, wherein the air supply device supplies air into the air curtain device, the air discharged by the air curtain device is blown to the air collecting device, the air curtain device comprises an outer groove, a longitudinal guide plate A, U type guide plate and a longitudinal guide plate B, and an air inlet is formed in the bottom of the outer groove; the longitudinal guide plate A, U type guide plate and the longitudinal guide plate B are arranged in the outer tank, a gap between the U-shaped guide plate and the longitudinal guide plate A is an air outlet A, a gap between the U-shaped guide plate and the longitudinal guide plate B is an air outlet B, and the air outlet A and the air outlet B are two parallel gaps; the U-shaped guide plates are more than one, and when the U-shaped guide plates are more than two, gaps between the adjacent U-shaped guide plates also form air outlets. For example, the number of the U-shaped guide plates is 1, and only two parallel gap type air outlets are arranged; when the U type guide plate is 2, the gap between 2U type guide plates also is the air outlet, 3 air outlets of conformal formation, and in the same way, when having 3U type guide plates, will form the air outlet of 4 gap formulas.

Furthermore, a transverse connecting plate A is arranged at the top of the longitudinal guide plate A, and a transverse connecting plate B is arranged at the top of the longitudinal guide plate B; the outer groove is of a cuboid structure with an open top surface, the transverse connecting plate A is fixedly connected to the top of one side edge of the outer groove through screws, and the transverse connecting plate B is fixedly connected to the top of the other side edge of the outer groove through screws; the longitudinal guide plate A is fixedly connected with the side wall A of the U-shaped guide plate through screws, and the side wall B of the U-shaped guide plate is fixedly connected with the longitudinal guide plate B through screws.

Furthermore, sound-absorbing cotton is arranged at the upper part of the plate surface of the longitudinal guide plate A, and a plurality of air guide holes are distributed at the lower part of the plate surface of the longitudinal guide plate A; the sound absorbing cotton is arranged on the upper portion of the plate surface of the longitudinal guide plate B, a plurality of air guide holes are distributed on the lower portion of the plate surface of the longitudinal guide plate B, the sound absorbing cotton is arranged on the upper portion of the side wall A and the upper portion of the side wall B in the U-shaped guide plate and the inner surface of the top of the U-shaped guide plate, the air guide holes A are distributed on the lower portion of the side wall A in the U-shaped guide plate and are staggered with the air guide holes in the guide plate A, the air guide holes B are distributed on the lower portion of the side wall B in the U-shaped guide plate.

Furthermore, the top of the two side walls of the outer groove is provided with fixing lugs distributed at intervals, and the fixing lugs are fixedly connected with the decorative plate through screws.

Furthermore, an air filtering device is arranged in the air supply device or the air collecting device.

Further, the air collecting device include quick-witted case, wind-collecting cover and air exhauster, the lower port of quick-witted case is equipped with into the wind gap, and the upper port is equipped with the air outlet, and the upper port department of quick-witted case is equipped with HEPA sub-high efficiency filter screen, air filtering device include guide roller group, filter cloth book, retreat the axle and wind the cloth axle, the air exhauster be located the wind-collecting cover, the wind-collecting cover is installed at quick-witted incasement, guide roller group establish at quick-witted incasement and be located the outer both sides of wind-collecting cover, retreat the axle and wind the cloth axle establish at quick-witted incasement and be located the outer both sides of wind-collecting cover, the centre bore interlude of filter cloth book is on retreating epaxially, when filter cloth one end that the filter cloth rolled up was walked around from guide roller group, the air inlet.

Further, the cloth winding shaft adopts a manual mode or an electric mode; the electric mode comprises a stepping motor and a controller, wherein the stepping motor is connected with the cloth winding shaft, and the controller is used for controlling the rotation number of turns of the stepping motor so as to control the winding amount of the filter cloth.

Furthermore, an air equalizing plate is arranged at an air inlet of the air collecting cover, and a plurality of strip slit type ventilation holes are distributed on the surface of the air equalizing plate.

Furthermore, the air supply device is communicated with an air inlet of the air curtain device through a horn mouth type connector, more than two left side transverse guide plates are distributed on the inner wall surface of the left side from bottom to top in the horn mouth type connector, more than two right side transverse guide plates are distributed on the inner wall surface of the right side from bottom to top, the left side transverse guide plates and the right side transverse guide plates are distributed in a staggered mode, the width of each of the left side transverse guide plates and the right side transverse guide plates is smaller than the distance between the inner wall surface of the left side and the inner wall surface of the right side, and is larger than one half of the distance between the inner wall surface of the left.

Furthermore, an air pressure sensor A and an air pressure sensor B are respectively installed in the air collecting device and the air curtain device, the air pressure sensor A and the air pressure sensor B respectively transmit the air pressure of the air collecting device and the air curtain device to the controller, and the controller performs variable speed control on a fan in the air supply device and an exhaust fan in the air collecting device according to the air pressure value so as to regulate and control the air pressure value in the air curtain device and the air curtain device to be constant; an ultraviolet germicidal lamp is installed in the case.

The invention has the beneficial effects that:

because the air curtain device adopts a structure of two adjacent parallel gap type air outlets, the formed air curtain is thicker than a single gap, the provided wind energy is larger, meanwhile, the two air curtains blown out of the adjacent parallel gap type air outlet structures are gradually closed and narrowed by the extrusion of the air at the outer side according to the Bernoulli equation, the high-efficiency recovery and filtration treatment of the air collector are facilitated, the air flow at the inner side between the two air curtains is disturbed and accelerated mutually, and a complete air curtain formed by the air curtain device has a good air blocking effect and a better effect in the aspect of virus isolation, and can be installed on places such as desks, office windows or epidemic prevention detection points;

because the filter assembly is additionally arranged in the air collecting device, when the filter cloth needs to be replaced, the cloth winding shaft is rotated, so that the filter cloth roll on the unwinding shaft is rotated, the air inlet is covered by the new filter cloth unwound from the filter cloth roll, the dirty filter cloth is wound on the cloth winding shaft, the filter cloth is very convenient to replace, and the function of filtering viruses is achieved;

the air inlet port of the air collecting cover is provided with an air flow equalizing plate. The air entering the air collecting cover can enter from the plurality of air vents on the air flow equalizing plate, so that the air flows through the whole filter cloth at the air inlet port of the air collecting cover as much as possible, and the filtering effect is improved;

because the air pressure sensor A and the air pressure sensor B are respectively arranged in the air collecting device and the air curtain device, the controller performs variable speed control on a fan in the air supply device and an exhaust fan in the air collecting device according to air pressure values transmitted by the air pressure sensor A and the air pressure sensor B, when the air pressure in the air curtain device does not reach a set value, the controller can increase the rotating speed of the fan, and similarly, when the air pressure in the air collecting cover is negative pressure during working, the air pressure in the air collecting cover can be ensured to be completely pumped away only when the air pressure in the air curtain device is negative pressure, when the air pressure in the air collecting device does not meet the set value, the controller can increase the rotating speed of the exhaust fan, and when the negative pressure is too high, the rotating speed of the;

when in installation, the longitudinal guide plate A, U type guide plate and the longitudinal guide plate B are fixed into a whole through screws and bolts, so that the whole can be conveniently installed in the outer groove;

because the ultraviolet germicidal lamp is additionally arranged in the air collecting cover, the air collecting cover can sterilize and disinfect flowing air.

As the left transverse guide plate and the right transverse guide plate which are distributed in a staggered manner are additionally arranged in the horn mouth type connector, air flow is blocked, the air flow flows in a roundabout manner, and a certain silencing effect is achieved.

Drawings

The invention is further described with the aid of the accompanying drawings, in which the embodiments do not constitute any limitation, and for a person skilled in the art, without inventive effort, further drawings may be obtained from the following figures:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the curtain device of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of the wind collecting device shown in FIG. 1;

FIG. 5 is a top view of the air flow equalizer plate of FIG. 4;

FIG. 6 is a schematic view of the flare type connector of FIG. 1;

fig. 7 is a perspective view of fig. 6.

In the figure: 1. an air supply device; 2. A curtain device; 3. A wind collecting device; 4. A bell-mouth connector; 5. An outer tank; 6. A longitudinal baffle A; 7. A U-shaped guide plate; 8. A longitudinal flow guide plate B; 9. An air outlet A; 10. An air outlet B; 11. a transverse connecting plate A; 12. A transverse connecting plate B; 13. A screw; 14. A screw; 15. A side wall A; 16. A screw; 17. a side wall B; 18. A screw; 19. Sound-absorbing cotton; 20. A wind guide hole; 21. Sound-absorbing cotton; 22. A wind guide hole; 23. Sound-absorbing cotton; 24. A wind guide hole A; 25. A wind guide hole B; 26. Fixing the ear; 27. A wind collecting cover; 28. An exhaust fan; 29. A guide roller set; 30. rolling filter cloth; 31. Unwinding the shaft; 32. Winding the cloth shaft; 33. Filtering cloth; 34. A stepping motor; 35. A controller; 36. An air pressure sensor A; 37. An air pressure sensor B; 38. An ultraviolet germicidal lamp; 39. HEPA sub-high efficiency filter screen; 40. An air flow equalizing plate; 41. A strip slit vent; 42. The inner wall surface of the left side; 43. A left lateral guide plate; 44. The right inner wall surface; 45. A right lateral guide plate; 46. And an air inlet.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

As shown in fig. 1, 2 and 3, in the present embodiment, 1U-shaped guide plate 7 is taken as an example for description, and a parallel gap type air curtain isolation system includes an air supply device 1, an air curtain device 2 and an air collection device 3, wherein the air supply device 1 and the air curtain device are connected through a bell mouth type connector 42The air inlet 46 is communicated, the air exhausted by the air curtain device 2 blows to the air collecting device, the air curtain device 2 comprises an outer groove 5, a longitudinal guide plate A6, a U-shaped guide plate 7 and a longitudinal guide plate B8, and the bottom of the outer groove 5 is provided with the air inlet 46; the longitudinal guide plate A6, the U-shaped guide plate 7 and the longitudinal guide plate B8 are installed in the outer tank 5, the gap between the U-shaped guide plate 7 and the longitudinal guide plate A6 is an air outlet A9, and the gap between the U-shaped guide plate 7 and the longitudinal guide plate B8 is an air outlet B10. The air outlet A9 and the air outlet B10 are two parallel gaps. The structure of two adjacent parallel slot type air outlets of the air curtain device forms an air curtain thicker than a single slot, the provided wind energy is larger, meanwhile, the two air curtains blown out of the adjacent parallel slot type air outlet structure are extruded by the air on the outer side according to the Bernoulli equation, the two air curtains gradually get close and narrow, the efficient recovery and filtration treatment of the air collecting device are facilitated, the air flow on the inner side between the two air curtains can be disturbed and accelerated mutually, and a better isolation effect is formed.

The top of the longitudinal guide plate A6 is provided with a transverse connecting plate A11, the longitudinal guide plate A6 and the transverse connecting plate A11 are integrally formed, the top of the longitudinal guide plate B8 is provided with a transverse connecting plate B12, and the longitudinal guide plate B8 and the transverse connecting plate B12 are integrally formed; the outer groove 5 is a cuboid structure with an open top surface, the transverse connecting plate A11 is fixedly connected to the top of one side edge of the outer groove 5 through a screw 13, and the transverse connecting plate B12 is fixedly connected to the top of the other side edge of the outer groove 5 through a screw 14; the longitudinal guide plate A6 is fixedly connected with the side wall A15 of the U-shaped guide plate 7 through screws 16, and the side wall B17 of the U-shaped guide plate 7 is fixedly connected with the longitudinal guide plate B8 through screws 18. It can be seen that the longitudinal guide plate a and the transverse connecting plate a form an inverted L-shaped structure or a 7-shaped structure, and similarly, the longitudinal guide plate B8 and the transverse connecting plate B12 also form an inverted L-shaped structure or a 7-shaped structure, which facilitates the installation and fixation with the outer tank 5, when in installation, the longitudinal guide plate a6, the U-shaped guide plate 7 and the longitudinal guide plate B8 are fixed into a whole through the screws 16 and 18, respectively, so that the whole can be conveniently installed in the outer tank 5. In addition, spacers are arranged on the screws 16 and 18 and in the air outlets a9 and B10, so that the widths of the air outlets a9 and B10 are constant.

The upper part of the plate surface of the longitudinal guide plate A6 is provided with sound absorption cotton 19, and the lower part of the plate surface of the longitudinal guide plate A6 is distributed with a plurality of air guide holes 20; the sound absorption cotton 21 is arranged on the upper portion of the plate surface of the longitudinal guide plate B8, a plurality of air guide holes 22 are distributed on the lower portion of the plate surface of the longitudinal guide plate B8, sound absorption cotton 23 is arranged on the upper portions of the side wall A15 and the side wall B17 in the U-shaped guide plate 7 and on the inner surface of the top of the U-shaped guide plate 7, air guide holes A24 are distributed on the lower portion of the side wall A15 in the U-shaped guide plate 7, the air guide holes A24 and the air guide holes 20 in the longitudinal guide plate A6 are staggered, air guide holes B25 are distributed on the lower portion of the side wall B17 in the U-shaped guide plate 7, and the air guide. By the design, airflow of the corresponding air guide holes can be prevented from flowing, and the airflow flows upwards along the air outlet A9 and the air outlet B10 and is discharged.

The top of the two side walls of the outer groove 5 is provided with fixing lugs 26 which are distributed at intervals, and the fixing lugs 26 are fixedly connected with the decorative plate through screws. The fixing lug 26 is additionally arranged, so that convenience is provided for installation and fixation of the anti-epidemic.

As shown in fig. 4 and 5, the air blowing device or the air collecting device is provided with an air filter device. In this embodiment, air filtering device installs in the wind collecting device, wind collecting device 3 includes quick-witted case 47, wind-collecting cover 27 and air exhauster 28, and the lower port of quick-witted case 47 is equipped with into the wind gap, and the last port is equipped with the air outlet, air filtering device include guide roller set 29, filter cloth book 30, backing-off axle 31 and wind cloth axle 32, air exhauster 28 be located wind-collecting cover 27, wind-collecting cover 27 installs in quick-witted case 47, guide roller set 29 establish in quick-witted case 47 and be located wind-collecting cover 27 outer both sides, backing-off axle 31 and wind cloth axle 32 establish in quick-witted case 47 and be located the outside both sides of wind-collecting cover 27, the centre bore of filter cloth book 30 alternates on backing-off axle 31, when filter cloth 33 one end on filter cloth book 30 was walked around from guide roller set 29, filter cloth 33 sheltered around the air inlet port of wind-collecting cover 27 from guide roller set 29, and fixed on. The cloth winding shaft 32 adopts a manual mode or an electric mode; the embodiment adopts an electric mode and comprises a stepping motor 34 and a controller 35, wherein the stepping motor 34 is connected with the cloth winding shaft 32, and the controller 35 is used for controlling the rotation number of the stepping motor so as to control the winding amount of the filter cloth. When the filter cloth is dirty, the controller 35 starts the stepping motor 34 to drive the cloth shaft 32 to rotate for a set number of turns, so that the aim of replacing the filter cloth can be conveniently achieved.

In addition, an air pressure sensor a36 and an air pressure sensor B37 are respectively installed in the air collecting device 3 and the air curtain device 2, the air pressure sensor a36 and the air pressure sensor B37 respectively transmit air pressure values of the air collecting device 3 and the air curtain device 2 to the controller 35, and the controller 35 performs variable speed control on a fan in the air supply device and an exhaust fan in the air collecting device according to the air pressure so as to regulate and control the air pressure values in the air curtain device and the air curtain device to be constant. Specifically, because an air pressure sensor A and an air pressure sensor B are respectively installed in the air collecting device and the air curtain device, the controller controls the speed change of a fan in the air supply device and an exhaust fan in the air collecting device according to the air pressure transmitted by the air pressure sensor A and the air pressure sensor B, when the air pressure in the air curtain device does not reach a set value, the controller can increase the rotating speed of the fan, and similarly, when the air pressure in the air collecting cover is negative pressure, only the negative pressure can ensure that all the air blown out from the air curtain device is pumped away, when the air pressure in the air collecting device does not accord with the set value, the controller can increase the rotating speed of the exhaust fan, and when the negative pressure is too large, the rotating speed of the exhaust fan is reduced.

The ultraviolet germicidal lamp 38 is installed in the case 47 of the wind collecting device 3, and has a function of killing germs in the airflow.

In this patent, the filter cloth 33 is melt-blown cloth, which has a barrier and filtering effect on viruses. An HEPA sub-high efficiency filter screen 39 is arranged at the upper port of the case 47 to filter the air for the second time.

An air equalizing plate 40 is arranged at an air inlet of the air collecting cover 27, and a plurality of strip slit type vent holes 41 are distributed on the surface of the air equalizing plate 40. The air entering the air collecting cover 27 can enter from the plurality of strip slit type vent holes 41 on the air flow equalizing plate 40, so that the air flows through the whole area of the filter cloth 33 at the air inlet port of the air collecting cover 27 as much as possible, and the filtering effect is improved.

As shown in fig. 6 and 7, in the bell-mouth-shaped connector 4, more than two left lateral guide plates 43 are distributed on the left inner wall surface 42 from bottom to top, more than two right lateral guide plates 45 are distributed on the right inner wall surface 44 from bottom to top, the left lateral guide plates 43 and the right lateral guide plates 45 are distributed in a staggered manner, and the widths of the left lateral guide plates 43 and the right lateral guide plates 45 are both smaller than the distance between the left inner wall surface 42 and the right inner wall surface 44 and larger than half of the distance between the left inner wall surface 42 and the right inner wall surface 44. The guide plates distributed in a staggered mode are used for blocking airflow, so that the airflow flows in a roundabout mode, and a certain silencing effect is achieved.

In addition, the U-shaped guide plates are more than one, and when the U-shaped guide plates are more than two, gaps between the adjacent U-shaped guide plates also form air outlets. For example, the number of the U-shaped guide plates is 1, and only two parallel gap type air outlets are arranged; when the number of the U-shaped guide plates is 2, gaps among the 2U-shaped guide plates are also air outlets, and 3 air outlets are formed in a conformal mode; similarly, when there are 3U-shaped deflectors, there will be 4 slit type air outlets, and the number of U-shaped deflectors will not exceed 5, so the number of parallel slit type air outlets formed will not exceed 6.

Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.