Airtight delivery window and air purification system

Abstract

The invention provides an airtight delivery window and an air purification system, and relates to the technical field of safety protection equipment. The airtight delivery window comprises a box body, and the box body is of a hollow structure; the two opposite sides of the box body are each connected with a window body, and a cavity is defined by the pair of window bodies and the box body; the rotating device is arranged in the cavity, and the rotating device can divide the cavity into a first area and a second area in the first direction; the driving device is arranged on the box body, connected with the rotating device and used for driving the rotating device to rotate in the second direction; wherein the first direction and the second direction meet the vertical condition, and in the rotating process of the rotating device, the first area is not communicated with the second area. According to the technical scheme, the two areas can be always kept in a mutually isolated state in the transferring process of the articles between the different areas. Therefore, the problem of gas leakage caused by aging, deformation or abrasion of a sealing material in a traditional double-door structure can be effectively prevented.

Description

Technical Field

[0001] The present disclosure relates to the technical field of safety protection equipment, and in particular to an airtight transfer window and an air purification system. Background Art

[0002] Airtight transfer windows are mainly used in areas with extremely high requirements for airtightness, such as biosafety laboratories, chemical and pharmaceutical clean rooms, etc. Its core function is to safely and reliably transfer items between areas with different cleanliness levels, effectively prevent gas leakage and cross contamination, and thus maintain the proper air pressure and cleanliness in each area.

[0003] Currently, most common airtight transfer windows adopt a double-door structure, and the two doors are respectively set on both sides of the transfer window. In addition, the doors on both sides have an interlocking function, that is, when one of the doors is in the open state, the other door cannot be opened. Such a design can ensure that the two different areas will not be directly connected during the transfer of items, thereby effectively preventing gas leakage and cross-contamination. However, although the double-door structure and sealing design can effectively prevent gas leakage during the initial installation, the sealing materials (such as rubber sealing strips, etc.) may age, deform or wear over time and with frequent use. This will cause the sealing effect to gradually decrease. Even if the door is closed, there may still be tiny gas leakage channels, affecting the overall airtightness of the transfer window, and thus threatening the effect of preventing cross-contamination.

[0004] Therefore, an airtight transfer window is needed to at least solve the above problems. Summary of the invention

[0005] The purpose of the embodiments of the present disclosure is to provide an airtight transfer window to solve the problem that the existing airtight transfer window may leak gas after long-term use due to aging and wear of the sealing material or imperfect sealing structure design.

[0006] To solve the above technical problems, the embodiments of the present disclosure provide the following technical solutions:

[0007] According to a first aspect of the present disclosure, there is provided an airtight transfer window, comprising: a box body, which is a hollow structure; a window body, wherein two opposite sides of the box body are respectively connected to one of the windows, and a pair of the windows and the box body enclose a cavity; a rotating device, wherein the rotating device is arranged in the cavity, and the rotating device can divide the cavity into a first area and a second area along a first direction; a driving device, wherein the driving device is arranged on the box body and connected to the rotating device, and is used to drive the rotating device to rotate along a second direction; wherein the first direction and the second direction meet a vertical condition, and during the rotation of the rotating device, the first area is not connected to the second area.

[0008] In some embodiments, the rotating device includes a rotating shaft and a pair of baffles, the rotating shaft is arranged at the center of the cavity along a third direction, and the pair of baffles are relatively arranged on both sides of the rotating shaft along the first direction, and the pair of baffles are used to divide the cavity into the first area and the second area; the third direction satisfies the perpendicular condition with the first direction and the second direction respectively; the driving device is connected to the rotating shaft, and is used to drive the rotating shaft to rotate around its center line to synchronously drive the pair of baffles to rotate.

[0009] In some embodiments, the rotating device further includes a pair of protective plates, wherein the pair of protective plates are respectively connected to the sides of a pair of baffles away from the rotating shaft, and the range of the protective plates is larger than the range of the cavity facing the window.

[0010] In some embodiments, the cavity is cylindrical, and the interior of the box includes a pair of opposite curved side wall surfaces, a top surface, and a bottom surface; the protective plate is a curved plate, and the curvature of the protective plate is matched with the side wall surface.

[0011] In some embodiments, the baffle is connected to the middle portion of the protective plate, and the baffle is vertically disposed to the protective plate.

[0012] In some embodiments, the surface of the protective plate facing the side wall surface is provided with a first sealing portion, and the first sealing portion is arranged in contact with the side wall surface; the surfaces of the baffle plate facing the top surface and the bottom surface are respectively provided with second sealing portions, and the second sealing portions are arranged in contact with the top surface and the bottom surface.

[0013] In some embodiments, the driving device is disposed in a wall of the box having the top surface or the bottom surface.

[0014] In some embodiments, the airtight transfer window further includes: a pair of purification devices, the pair of purification devices are respectively arranged in the wall of the box body having the side wall surface, and are used to purify the gas in the cavity.

[0015] In some embodiments, the airtight transfer window also includes: a pair of sensing devices, the pair of sensing devices are respectively arranged in the wall of the box body having the side wall surface, and are used to sense the position of the protective plate; a control device, the control device is respectively communicated with the sensing device and the purification device, and the control device controls the start and stop of the purification device according to the sensing signal of the sensing device.

[0016] A second aspect of the present disclosure provides an air purification system, including the airtight transfer window provided by the first aspect of the present disclosure.

[0017] Compared with the prior art, the airtight transfer window provided in the first aspect of the present disclosure uses a hollow structure box as a basic frame to connect two spaces to realize item transfer. Windows are connected to both sides of the box, and the windows and the box together enclose a cavity. A rotating device is provided in the cavity, and the rotating device can divide the cavity into a first area and a second area along a first direction. The driving device is connected to the rotating device, and it can drive the rotating device to rotate along a second direction perpendicular to the first direction. When there is a need to transfer items, the driving device is started, and then the rotating device is driven to rotate, thereby realizing the transfer of items between different areas, and during the entire transfer process, the two areas always remain isolated from each other. Thereby, the problem of gas leakage channels caused by aging, deformation or wear of sealing materials in traditional double-door structures can be effectively prevented.

[0018] The technical effect of the air purification system provided in the second aspect of the present disclosure has the same or similar technical effect as the airtight transfer window provided in the first aspect of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0020] Figure 1 The structure diagram of the airtight transfer window provided by the embodiment of the present disclosure is schematically shown;

[0021] Figure 2 The structure diagram of the rotating device in the airtight transfer window provided by the embodiment of the present disclosure is schematically shown;

[0022] Figure 3 The schematic diagram of the top view of the internal structure of the airtight transfer window provided by the embodiment of the present disclosure in one state is shown schematically;

[0023] Figure 4 The top view schematically shows another state of the internal structure of the airtight transfer window provided by the embodiment of the present disclosure;

[0024] Description of Figure Numbers:

[0025] 1. Box; 101. First area; 102. Second area; 2. Window; 3. Rotating device; 301. Rotating shaft; 302. Baffle; 303. Protective plate; 4. Driving device; 5. Purification device; 6. Sensing device; 7. Control device; DETAILED DESCRIPTION

[0026] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present disclosure should have the common meanings understood by those skilled in the art to which the present disclosure belongs.

[0028] Traditional and common airtight transfer windows mostly adopt a double-door structure, and the interlocking of the doors on both sides can prevent two different areas from directly communicating when the items are transferred to a certain extent, thereby avoiding gas leakage and cross-contamination. However, this structure is highly dependent on sealing materials (such as rubber sealing strips, etc.) to maintain airtightness. With the passage of time and frequent use, the sealing materials will inevitably age, deform or wear, which makes the sealing effect worse. Even if the door is in a closed state, tiny gas leakage channels may occur, thereby threatening the overall airtightness of the transfer window and the effect of preventing cross-contamination. The airtight transfer window provided by the embodiment of the present disclosure no longer relies entirely on the integrity of the sealing material for the guarantee of airtightness, but starts from the structural design of the transfer window itself, seeking a new mechanism that can effectively maintain airtightness even if there is a problem with the sealing material during long-term use.

[0029] Example 1

[0030] The present disclosure provides an airtight transfer window. Figures 1 to 4 As shown, it includes: a box body 1, which is a hollow structure; a window body 2, wherein two opposite sides of the box body 1 are respectively connected to a window body 2, and a pair of windows 2 and the box body 1 enclose a cavity; a rotating device 3, which is arranged in the cavity, and the rotating device 3 can divide the cavity into a first area 101 and a second area 102 along a first direction; a driving device 4, which is arranged on the box body 1 and connected to the rotating device 3, and is used to drive the rotating device 3 to rotate along the second direction; wherein the first direction and the second direction meet the vertical condition, and when the rotating device 3 is rotating, the first area 101 is not connected with the second area 102.

[0031] The box body 1 is the basic frame of the entire airtight transfer window. It has a hollow structure with openings on both sides and can be embedded in the wall. The two spaces can be connected with the help of the openings on both sides to realize the function of transferring items. A window 2 is connected to each of the two sides of the box body 1 with an opening, and a pair of windows 2 and the box body 1 together enclose a cavity. A rotating device 3 is arranged in the cavity, and the rotating device 3 can divide the cavity into a first area 101 and a second area 102 along a first direction. At the same time, a driving device 4 is also provided on the box body 1. The driving device 4 is interconnected with the rotating device 3 and is used to drive the rotating device 3 to rotate along a second direction perpendicular to the first direction. When an item needs to be transferred, the driving device 4 will start, thereby driving the rotating device 3 to rotate along the second direction. During the entire rotation process, the rotating device 3 will always ensure that the first area 101 and the second area 102 remain disconnected.

[0032] For example, if the object is initially located in the first area 101, then as the rotating device 3 rotates, the space where the object is located will be gradually transferred to the second area 102; conversely, if the object is initially located in the second area 102, it can also be transferred to the first area 101 through the operation of the rotating device 3. In this way, the transfer of objects between different areas is successfully achieved, and in the entire transfer process, the two areas are isolated from each other from beginning to end, and there will never be a direct connection between them.

[0033] During the transfer of items, the first area 101 and the second area 102 are always in a disconnected state, thus effectively preventing the generation of gas leakage channels caused by aging, deformation or wear of sealing materials in traditional double-door structures. Moreover, even if the windows 2 on both sides are opened at the same time, it can ensure that the spaces on both sides are not connected to each other. This design method of always maintaining regional isolation eliminates the possibility of direct communication between two different areas from the root. Compared with the risk of cross-contamination that may be caused by problems with the sealing materials of traditional double-door structures, the present disclosure is more effective in preventing cross-contamination between areas of different cleanliness levels, thereby providing a strong environmental safety guarantee for places with extremely high requirements for air tightness and cleanliness, such as biosafety laboratories, chemical and pharmaceutical clean rooms.

[0034] In some embodiments, the first direction may be a horizontal direction, and the second direction may be a direction perpendicular to the first direction on the horizontal plane.

[0035] The rotating device 3 can be presented as a vertically placed partition style, which can divide the cavity into two different areas on the left and right or front and back from the horizontal plane, and these two areas are the first area 101 and the second area 102. The driving device 4 is used to drive the rotating device 3 to rotate along the direction perpendicular to the horizontal direction on the horizontal plane. Assuming that the object is initially placed in the first area 101 on the left side of the cavity, when the driving device 4 is started and the rotating device 3 rotates along the direction perpendicular to the first direction on the horizontal plane, the object will gradually be moved from the first area 101 on the left side to the second area 102 on the right side. In this way, the object transfer operation between different areas is successfully realized.

[0036] In some embodiments, the rotating device 3 includes a rotating shaft 301 and a pair of baffles 302. The rotating shaft 301 is arranged at the center of the cavity along the third direction, and the pair of baffles 302 are arranged on both sides of the rotating shaft 301 relatively along the first direction. The pair of baffles 302 are used to divide the cavity into a first area 101 and a second area 102; the third direction meets the perpendicular condition with the first direction and the second direction respectively; the driving device 4 is connected to the rotating shaft 301, and is used to drive the rotating shaft 301 to rotate around its center line to synchronously drive the pair of baffles 302 to rotate.

[0037] The rotating shaft 301 is installed in the center of the cavity along the vertical direction (i.e., the third direction perpendicular to both the first horizontal direction and the second direction for driving the rotation). On both sides of the rotating shaft 301, a pair of baffles 302 are arranged oppositely along the horizontal direction (first direction), and the baffles 302 can clearly divide the cavity into two different areas, namely the first area 101 and the second area 102. The driving device 4 is directly connected to the rotating shaft 301, and can effectively transmit power to the rotating shaft 301, so that it has the ability to rotate around its own center line. When the item transfer operation is performed, the driving device 4 is started, and its output power drives the rotating shaft 301 to rotate around the center line. Since the baffles 302 are closely connected to the rotating shaft 301 and are arranged oppositely along both sides of the rotating shaft 301, the rotating shaft 301 will synchronously drive the baffles 302 to rotate together. This three-dimensional structural layout makes the rotating device 3 more stable in space. When the baffle 302 rotates with the rotating shaft 301, the dividing effect of the cavity is stable and reliable, and there will be no regional connectivity due to structural problems, thereby improving the reliability of the airtightness of the transfer window.

[0038] During the whole process of transferring the items, no matter how the rotating shaft 301 and the baffle 302 rotate, the pair of baffles 302 can always accurately divide the cavity into the first area 101 and the second area 102 which are not connected to each other. This continuous regional isolation state prevents gas from leaking directly from one area to another area when the items are transferred. Even if there are situations such as the windows 2 on both sides are accidentally opened or the transfer window is disturbed by a certain external force, the two areas can still be isolated from each other by virtue of the stable dividing effect of the baffle 302, thereby reliably maintaining the overall air tightness of the transfer window and ensuring that the proper air pressure and cleanliness of each area are not affected.

[0039] In some embodiments, a pair of baffles 302 are located on the same straight line, and the first area 101 and the second area 102 are equal.

[0040] A pair of baffles 302 are placed horizontally and in a straight line in the middle of the cavity, dividing the cavity evenly from the middle so that the first area 101 and the second area 102 divided by them are equal in size, avoiding problems such as inconvenience in use or uneven gas flow caused by the space of a certain area being too large or too small.

[0041] In some embodiments, Figure 2 As shown, the rotating device 3 further includes a pair of protection plates 303 , which are respectively connected to the sides of the pair of baffles 302 away from the rotating shaft 301 , and the range of the protection plates 303 is larger than the range of the cavity facing the window 2 .

[0042] Each baffle 302 is connected to a protective plate 303 connected thereto, and the protective plate 303 is located at the outer edge of the baffle 302, away from the center of the rotating shaft 301. And the range covered by the protective plate 303 is larger than the range of the cavity facing the window 2. That is, when observed from a direction perpendicular to the window 2, the area occupied by the protective plate 303 at this viewing angle exceeds the area of ​​the opening of the box body 1.

[0043] Specifically, in the initial state, a pair of baffles 302 are arranged parallel to the surface of the box 1 with an opening, and the pair of baffles 302 can separate the cavity into two front and rear areas. Under the action of the pair of baffles 302, the airtight transfer window realizes the isolation of the gas communication between the two spaces. Then open the window 2 on one side, place the object in the first area 101, and then close the window 2. Then start the driving device 4, which drives the rotating device 3 to start rotating. During the rotation of the pair of baffles 302, when the baffle 302 rotates to the direction toward the window 2, the pair of baffles 302 will re-divide the cavity into two left and right areas. If the window 2 has poor sealing or is not completely closed at this time, the gas may enter the cavity through the window 2 and then enter another space. The airtight transfer window provided by the embodiment of the present disclosure can be provided with a pair of protective plates 303, and the protective plates 303 can always play a role in the entire process of object transfer to block the gas flow between the two spaces. Since the coverage of the protective plate 303 is larger than the range of the cavity facing the window 2, even when the baffle 302 is rotated to a direction completely perpendicular to the window 2, the protective plate 303 can completely separate the cavity and the window 2, thereby effectively blocking all possible gas leakage paths. The protective plate 303 and the baffle 302 work together to effectively block the gas from passing through potential gaps and prevent it from leaking from one area to another, further enhancing the effect of regional isolation.

[0044] In some embodiments, Figure 3 and Figure 4 As shown, the cavity is cylindrical, and the interior of the box body 1 includes a pair of opposite arc-shaped side wall surfaces, a top surface and a bottom surface; the protective plate 303 is an arc-shaped plate, and the curvature size of the protective plate 303 is matched with the side wall surface.

[0045] The cavity is cylindrical, which is a space enclosed by a pair of opposite curved side wall surfaces, a top surface, a bottom surface and a pair of windows 2 inside the box 1, that is, the surface of the window 2 facing the inside of the box 1 is also a curved surface. This pair of curved side wall surfaces are the side parts of the cylindrical cavity. They are bent along the circumferential direction to form a continuous curved profile, providing lateral support for the cavity. The top surface and the bottom surface are respectively located at the upper and lower ends of the cylinder, closing the cavity in the vertical direction to form a complete cylindrical cavity space. The protective plate 303 is an arc-shaped plate, and its curvature-related parameters, such as the degree of curvature, radius, etc., are all adapted to the curved side wall surface inside the box 1. This allows the protective plate 303 to fit tightly in the area near the side wall of the cavity, and to cover as large a range as possible while ensuring that the normal rotation of the rotating device 3 is not affected, so as to achieve its protective function.

[0046] In a cylindrical cavity environment, the arc-shaped protective plate 303 can better cover the connection area between the cavity and the window 2 and the area on the side of the cavity where gas leakage may occur. When the window 2 has poor sealing or is not completely closed, the protective plate 303 can more comprehensively block the possible gas leakage path by relying on its arc size that matches the side wall surface. Whether the baffle 302 is rotating or in a stationary state, the protective plate 303 can effectively prevent gas from leaking from one area to another, further strengthening the overall airtightness of the transfer window and ensuring that the proper air pressure and cleanliness of each area are not affected in any way.

[0047] In some embodiments, the baffle 302 is connected to the middle of the protective plate 303 , and the baffle 302 and the protective plate 303 are vertically arranged.

[0048] From a spatial perspective, the plane where the baffle 302 is located and the plane where the protective plate 303 is located are perpendicular to each other, and their connection point is located in the middle of the baffle 302, thus forming a "T"-shaped structural layout, which makes the entire rotating device 3 present the characteristics of an axially symmetrical structure. When the baffle 302 rotates to a direction completely perpendicular to the window 2, a pair of protective plates 303 can be arranged directly opposite to the window 2. In this case, the protective plates 303 can effectively play a role, blocking the flow of pollutants along with the gas, thereby preventing the pollutants from spreading from one area to another.

[0049] In some embodiments, the surface of the protective plate 303 facing the side wall surface is provided with a first sealing portion, and the first sealing portion is arranged in contact with the side wall surface; the surfaces of the baffle 302 facing the top surface and the bottom surface are respectively provided with second sealing portions, and the second sealing portions are arranged in contact with the top surface and the bottom surface.

[0050] A first sealing portion is provided on the side of the protective plate 303 facing the side wall surface of the box body 1, and the first sealing portion completely covers the outer surface of the protective plate 303. The first sealing portion can be made of a flexible sealing material, such as a fine sealing brush or a material made of fiber material, which can achieve a close fit with the side wall surface to the greatest extent. The upper surface (the side facing the top surface of the box body 1) and the lower surface (the side facing the bottom surface of the box body 1) of the baffle 302 are both provided with a second sealing portion. The second sealing portion can adopt the same structure as the first sealing portion, and it can also be in close contact with the top and bottom surfaces of the box body 1, which can achieve a sealing effect without interfering with the rotation of the rotating device 3. By providing a first sealing portion on the protective plate 303 to contact the side wall surface, and providing a second sealing portion on the baffle 302 to contact the top and bottom surfaces, multi-directional sealing of the cavity is achieved.

[0051] When the rotating device 3 drives the baffle 302 and the protective plate 303 to rotate to achieve the transfer of objects between different areas, these sealing parts can effectively prevent gas from leaking from the side walls, top surface and bottom surface of the box body 1 in various directions, thereby maintaining a good sealing effect.

[0052] In some embodiments, the driving device 4 is disposed in a wall of the box 1 having a top surface or a bottom surface.

[0053] A rectangular or square installation space of suitable size can be reserved in advance at the corresponding position near the center of the cavity on the top or bottom surface of the box body 1. The size of the space must be just enough to accommodate the drive device 4, and sufficient space must be left around it to facilitate subsequent line connection, debugging and other related operations, and then the drive device 4 is embedded in this installation space. The driving end of the drive device 4 must pass through the reserved hole on the top or bottom wall of the box body 1 (the hole must be sealed), and then connected to the rotating shaft 301 of the rotating device 3.

[0054] The drive device 4 has various forms, such as a motor, a pneumatic drive device 4 or a hydraulic drive device 4. When the output shaft of the drive device 4 (taking the motor as an example) and the rotating shaft 301 of the rotating device 3 are in the same straight line, a coupling can be used for connection, and the coupling has the ability to effectively transmit torque. By setting the drive device 4 in the top or bottom wall of the box body 1, it can avoid occupying valuable space inside the cavity and prevent the risk of gas leakage caused by setting the drive device 4 inside the cavity.

[0055] In some embodiments, Figure 3 and Figure 4 As shown, the airtight transfer window further includes: a pair of purification devices 5, which are respectively arranged in the wall of the box body 1 having the side wall surface, and are used to purify the gas in the cavity.

[0056] The purification device 5 can adopt an activated carbon adsorption purification device 5, and a large amount of activated carbon particles are filled inside the purification device 5. When the gas in the cavity is sucked into the purification device 5 through the exhaust pipe, the gas molecules will be adsorbed with the micropores on the surface of the activated carbon. Activated carbon has a huge specific surface area and can adsorb various impurities such as organic pollutants and odor substances. The gas after adsorption treatment is then sent back to the cavity through the air supply pipe, thereby purifying the gas in the cavity. Or an air filter (HEPA) purification device 5 is adopted, and the HEPA purification device 5 mainly relies on the high-efficiency filter material inside it to filter the particles in the gas. When the gas in the cavity is sucked into the purification device 5, the dust, pollen, microorganisms and other tiny particles in the gas will be intercepted by the filter material, and the purified gas is sent back to the cavity through the air supply pipe. For example, in the transfer window of the pharmaceutical clean room, in order to prevent pollutants such as microorganisms in the outside air from entering the clean room, the HEPA purification device 5 can be installed to effectively filter out these tiny particles and ensure the cleanliness of the gas in the cavity.

[0057] According to the overall structure of the box 1 and the position of the cavity, suitable installation spaces are reserved in the two opposite side walls. This installation space is generally rectangular or square, and its size is determined according to the specific size of the selected purification device 5. It is necessary to ensure that the purification device 5 can be fully accommodated, and a certain space must be reserved for subsequent pipeline connection, electrical line connection, maintenance and repair operations.

[0058] For example, for an airtight transfer window of a cylindrical cavity, two installation spaces of appropriate size are reserved in the side walls on the left and right sides thereof, close to the cavity but not affecting the normal operation of the rotating device 3, to adapt to the selected purification device 5. Then the purification device 5 is embedded in the reserved installation space and firmly fixed in the wall by fixing parts such as bolts and brackets. The purification device 5 is connected to the inside of the cavity through a pipeline. On the side wall of the cavity, corresponding to the positions of the air outlet and air inlet of the purification device 5, holes of appropriate size are opened respectively (these holes also need to be sealed to prevent gas leakage). Then, an air supply pipeline with one end connected to the air outlet of the purification device 5 and the other end leading to the inside of the cavity, and an air extraction pipeline with one end connected to the air inlet of the purification device 5 and the other end leading to the inside of the cavity are installed respectively. In this way, the circulation of the gas in the cavity between the purification device 5 and the cavity can be realized for purification.

[0059] By setting the purification device 5, during the object transfer process, even if the surface of the object carries pollutants, the purification effect of the purification device 5 on the gas in the cavity can prevent these pollutants from spreading to other areas with the flow of the gas. By continuously purifying the gas in the cavity, the pollutant content in the gas is extremely low, thereby effectively preventing cross-contamination between areas with different cleanliness levels, and ensuring the environmental safety of places with extremely high requirements for air tightness and cleanliness, such as biosafety laboratories, chemical and pharmaceutical clean rooms.

[0060] In some embodiments, Figures 1 to 4 As shown, the airtight transfer window also includes: a pair of sensing devices 6, which are respectively arranged in the wall of the box body 1 with a side wall surface, and are used to sense the position of the protective plate 303; a control device 7, which is respectively communicated with the sensing device 6 and the purification device 5, and the control device 7 controls the start and stop of the purification device 5 according to the sensing signal of the sensing device 6.

[0061] The sensing device 6 may be a photoelectric sensing device 6, which is composed of a light emitter and a receiver. The light emitter emits light, and when the protective plate 303 moves to a specific position, it blocks the light, causing the receiver to not receive the light, and then generates a corresponding electrical signal, thereby realizing the sensing of the position of the protective plate 303. For example, a marking point can be set on the edge of one side of the protective plate 303. When the marking point rotates with the protective plate 303 and passes through the photoelectric sensing device 6, it will cause the blocking and receiving conditions of the light to change, prompting the photoelectric sensing device 6 to output a corresponding sensing signal. In addition, the sensing device 6 may also be an electromagnetic sensing device 6, which works according to the principle of electromagnetic induction. When the protective plate 303 approaches or passes through the electromagnetic sensing device 6, the magnetic field will change, thereby forming an induced electromotive force in the coil of the sensing device 6, thereby generating an induction signal to determine the position of the protective plate 303. For example, if the protective plate 303 is made of metal, when it approaches the electromagnetic sensing device 6, it will have a significant impact on the magnetic field around the device, thereby triggering electromagnetic induction and outputting a signal.

[0062] In the wall of the box body 1 with the side wall surface, a suitable size installation space is reserved for a pair of sensing devices 6. The installation space can be set in a position close to the window body 2, so that when the protective plate 303 just starts to rotate, the sensing device 6 can monitor it. The control device 7 can be installed on the outer surface of the box body 1 to facilitate subsequent operation and maintenance. The control device 7 and the sensing device 6 and the purification device 5 are connected through wired or wireless communication. If a wired connection is adopted, a special cable can be used to transmit electrical signals to ensure that the signal transmission is both stable and accurate. For example, the connection line should be pre-laid inside the box body 1, and the output signal line of the sensing device 6 should be connected to the corresponding input port of the control device 7. At the same time, the output control signal line of the control device 7 should be connected to the control port of the purification device 5.

[0063] During the normal rotation of the protective plate 303, the sensing device 6 will sense its position in real time and transmit the corresponding signal to the control device 7. For example, assuming that the photoelectric sensing device 6 is selected, each time the marking point set on the protective plate 303 passes through the photoelectric sensing device 6, the photoelectric sensing device 6 will send an electrical signal indicating the specific position of the protective plate 303 to the control device 7. After receiving these signals, the control device 7 can accurately know the current position state of the protective plate 303, such as whether it is in the initial position, has rotated to a certain angle position in the middle, or is about to complete a complete rotation, etc.

[0064] The control device 7 will formulate corresponding control strategies according to the different position states of the protective plate 303 to determine the start and stop of the purification device 5. When the protective plate 303 rotates to overlap with the side wall surface of the box body 1, and it is detected that the protective plate 303 blocks the purification device 5, the control device 7 will control the purification device 5 to stop running. When the protective plate 303 rotates to overlap with the window 2, the purification device 5 faces the cavity, and the control device 7 will start the purification device 5 to purify the gas in the cavity. During the object transfer process, once the position of the protective plate 303 changes and triggers the purification device 5 to start, the purification device 5 will quickly purify the gas in the cavity. In this way, it can be ensured that when the object is transferred from one area to another, the gas in the cavity always maintains a clean state, effectively preventing the pollutants carried on the surface of the object from spreading to other areas with the flow of gas, thereby eliminating cross-contamination between areas with different cleanliness levels.

[0065] The real-time sensing of the position of the protective plate 303 by the sensing device 6, combined with the intelligent control performed by the control device 7 according to the sensing signal, can accurately control the start and stop timing of the purification device 5. According to the actual position of the protective plate 303 during the object transfer process, the purification device 5 is started when it is really necessary to purify the gas, such as when the object is about to be transferred from one area to another, so as to ensure the cleanliness of the gas in the cavity during the transfer process; the purification device 5 is stopped in time when the gas is not needed to be purified, which not only avoids the waste of energy, but also reduces the excessive loss of the purification device 5, thereby improving the use efficiency of the purification device 5.

[0066] Example 2

[0067] The embodiment of the present disclosure provides an air purification system, including the airtight transfer window provided in Example 1.

[0068] The air purification system uses the airtight transfer window provided in Example 1 as a core component, and may also include an item input side, an item output side, and power supply equipment, etc., which together constitute a complete air purification system.

[0069] By adopting the airtight transfer window provided in Example 1, when the items are transferred inside the transfer window, the purification device 5 can carry out the purification treatment work on the air in the cavity, which can prevent these pollutants from spreading to other areas with the flow of air. In addition, through the setting of the baffle 302 and the protective plate 303, and the sealing relationship formed between them and the cavity and the window 2, the possibility of pollutants entering another area from one area by air flow or other means is further eliminated. In this way, cross contamination between areas of different cleanliness levels is effectively prevented, thereby ensuring environmental safety for places such as biosafety laboratories, chemical and pharmaceutical clean rooms that have extremely high requirements for air tightness and cleanliness.

[0070] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An airtight transfer window, characterized in that: include: A box body, wherein the box body is a hollow structure; A window, wherein two opposite sides of the box are respectively connected with a window, and a pair of the windows and the box enclose a cavity; A rotating device, the rotating device is disposed in the cavity, and the rotating device can divide the cavity into a first area and a second area along a first direction; A driving device, the driving device is arranged on the box body and connected to the rotating device, and is used to drive the rotating device to rotate along a second direction; The first direction and the second direction meet a perpendicular condition, and the first area and the second area are not connected during the rotation of the rotating device.

2. The airtight transfer window according to claim 1, characterized in that: The rotating device comprises a rotating shaft and a pair of baffles, wherein the rotating shaft is arranged at the center of the cavity along the third direction, and the pair of baffles are arranged at two sides of the rotating shaft opposite to each other along the first direction, and the pair of baffles are used to divide the cavity into the first area and the second area; The third direction is perpendicular to the first direction and the second direction respectively; The driving device is connected to the rotating shaft and is used for driving the rotating shaft to rotate around its center line so as to synchronously drive the pair of baffles to rotate.

3. The airtight transfer window according to claim 2, characterized in that: The rotating device further comprises a pair of protection plates, wherein the pair of protection plates are respectively connected to the side edges of a pair of baffles away from the rotating shaft, and the range of the protection plates is larger than the range of the cavity facing the window.

4. The airtight transfer window according to claim 3, characterized in that: The cavity is cylindrical, and the interior of the box includes a pair of opposite arc-shaped side wall surfaces, a top surface and a bottom surface; The protection plate is an arc-shaped plate, and the arc size of the protection plate is matched with the surface of the side wall.

5. The airtight transfer window according to claim 3, characterized in that: The baffle is connected to the middle part of the protective plate, and the baffle is vertically arranged to the protective plate.

6. The airtight transfer window according to claim 4, characterized in that: A first sealing portion is provided on a surface of the protection plate facing the side wall surface, and the first sealing portion is arranged in contact with the side wall surface; Second sealing portions are respectively disposed on surfaces of the baffle plate facing the top surface and the bottom surface, and the second sealing portions are disposed in contact with the top surface and the bottom surface.

7. The airtight transfer window according to claim 4, characterized in that: The driving device is arranged in a wall of the box body having the top surface or the bottom surface.

8. The airtight transfer window according to claim 4, characterized in that: Also includes: A pair of purification devices, the pair of purification devices are respectively arranged in the wall of the box body having the side wall surface, and are used for purifying the gas in the cavity.

9. The airtight transfer window according to claim 8, characterized in that: Also includes: A pair of sensing devices, the pair of sensing devices are respectively arranged in the wall of the box body having the side wall surface, and are used to sense the position of the protective plate; A control device is respectively connected to the sensing device and the purification device for communication, and the control device controls the start and stop of the purification device according to the sensing signal of the sensing device.

10. An air purification system, characterized in that: The invention comprises the airtight transfer window as described in any one of claims 1 to 9.

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