Clean delivery window

Abstract

The utility model provides a clean delivery window, which belongs to the technical field of vaccine production, and comprises a delivery window main body, a placement grid, a spraying device, a clean air supply device and a control device, a transfer chamber, a liquid chamber and a control chamber which are isolated from one another are formed in the transfer window main body; the front side of the transfer chamber is provided with a front door, and the rear side is provided with a rear door; the placing grid is erected in the transfer chamber and can be used for placing articles, and the placing grid and the bottom wall of the transfer chamber are arranged at intervals up and down to form a backflow space; the spraying device is arranged in the transfer chamber and connected with the liquid chamber through a pipeline so as to spray the disinfectant in the liquid chamber to the upper portion and the lower portion of an object placed on the grid, and a liquid return opening is formed in the bottom wall of the transfer chamber; the clean air supply device is arranged at the top of the transfer chamber and can supply air downwards, an air return opening is formed in the bottom of the transfer chamber, and an air return control valve is arranged at the air return opening. According to the clean delivery window, comprehensive disinfection and cleaning of the surfaces of objects are achieved, disinfection and cleaning dead angles are avoided, and the reliability of cleaning and disinfection is improved.

Description

Technical Field

[0001] This application belongs to the field of vaccine production technology, and more specifically, relates to a clean transfer window. Background Technology

[0002] The main function of cleanroom pass-through windows is to reduce the number of times cleanroom doors are opened, thereby lowering the risk of contamination in clean areas. They also facilitate the safe transfer of small items between clean and non-clean areas, and between clean areas themselves. They are an indispensable piece of equipment in vaccine production. Existing cleanroom pass-through windows mostly use ultraviolet light sterilization or air shower cleaning methods, which have blind spots and make it difficult to further improve cleaning effectiveness. Utility Model Content

[0003] The purpose of this application is to provide a clean transfer window, which aims to solve the problem of blind spots in the disinfection and cleaning methods of clean transfer windows, and to further improve the cleaning and disinfection effect.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a cleanroom transfer window, comprising:

[0005] The main body of the transfer window has an internally isolated transfer chamber, a liquid chamber, and a control chamber. The liquid chamber and the control chamber are distributed vertically and are both located on the same side of the transfer chamber. The transfer chamber has a front door on the front side and a rear door on the rear side.

[0006] A placement grille is installed in the transfer chamber and can hold items. The placement grille is spaced vertically from the bottom wall of the transfer chamber to form a backflow space.

[0007] A spraying device is installed in the transfer chamber and connected to the liquid chamber through a pipe to spray the disinfectant in the liquid chamber onto the upper and lower parts of the items placed on the grid. The bottom wall of the transfer chamber is provided with a return port.

[0008] A clean air supply device is located at the top of the transfer chamber and can supply air downwards. A return air inlet is provided at the bottom of the transfer chamber, and a return air control valve is provided at the return air inlet.

[0009] A control device is located in the control room, and the front door, the rear door, the spray device, and the clean air supply device are electrically connected to the control device.

[0010] In one possible implementation, the sidewall and bottom wall of the transfer chamber are transitioned by an arc-shaped turning surface, and a conical truncated recirculation platform is provided at the center of the recirculation space. The generatrix of the recirculation platform is an arc, and the top surface of the recirculation platform is a plane.

[0011] In one possible implementation, the control device has touch panels on both the front and rear sides.

[0012] In one possible implementation, the liquid chamber has liquid level observation windows on both the front and rear sides, and a liquid inlet communicating with the liquid chamber is provided above the liquid level observation windows. The liquid inlet has a sealed state and an open state.

[0013] In some embodiments, the front and rear side walls of the liquid chamber are respectively provided with clearance openings, and the liquid level observation window is located below the clearance openings; the clean transfer window also includes a liquid filling box, which has a liquid filling channel that runs vertically through the liquid filling box, and the liquid filling channel forms the liquid filling port; the lower edge of the liquid filling box is hinged to the lower edge of the clearance opening, and the liquid filling box has a sealed state that covers and seals the clearance opening, and also has a liquid filling state in which the upper part rotates outward to exit the clearance opening.

[0014] In one possible implementation, the spraying device includes a plurality of spraying components spaced apart from top to bottom. Each spraying component includes a plurality of nozzles distributed circumferentially along the transfer chamber. Each nozzle is in communication with the liquid chamber and is vertically and retractably connected to the side wall of the transfer chamber.

[0015] In some embodiments, the transfer chamber is provided with a plurality of guide components spaced apart from top to bottom, and the guide components and the spray components are alternately distributed in the vertical direction; each guide component includes two guide rails respectively provided on the left side wall and the right side wall of the transfer chamber, the guide rails extend in the front-back direction, and the placement grid is inserted and engaged with the guide rails in the front-back direction.

[0016] In some embodiments, the guide rail includes a vertical guide plate and a horizontal guide plate, the horizontal guide plate being vertically connected to the lower part of the vertical guide plate, the vertical guide plate being fitted to the side wall of the transfer chamber, and the horizontal guide plate being used to support the lower surface of the placement grid edge;

[0017] A guide slope is provided between the vertical guide plate and the horizontal guide plate. The distance between the opposite faces of the two vertical guide plates in the same guide assembly is D1. The width of the placement grid is D2. The distance between the lower edges of the two guide slopes in the same guide assembly is D3, where D1 > D2 and D2 = D3.

[0018] In one possible implementation, the ultraviolet sterilization lighting device includes a plurality of ultraviolet lamps, which are embedded in the corresponding sidewall of the transfer chamber, and the lighting surface is flush with the corresponding sidewall of the transfer chamber.

[0019] In one possible implementation, the ultraviolet sterilization lighting device includes a plurality of ultraviolet lamps, and a lamp body receiving groove is formed on the left side wall and / or right side wall of the transfer chamber. The ultraviolet lamps are placed in the lamp body receiving grooves, and the lighting surface is flush with the corresponding side wall of the transfer chamber.

[0020] Compared with existing technologies, the cleanroom transfer window provided in this application, when in use, first activates the clean air supply device via a control device, with the return air control valve in the closed state. Clean airflow from the cleanroom continuously flows into the transfer room, creating a positive pressure environment. After opening the front door, the positive pressure environment in the transfer room reduces the entry of outside air into the transfer room, lowering the contamination level. Subsequently, items are placed on the placement grid, the front door is closed, and the disinfection and cleaning process is initiated via the control device. First, the disinfectant in the liquid chamber is sprayed onto the upper and lower parts (including the upper surface, outer periphery, and lower surface of the items) of the items on the placement grid by the spray device, thoroughly rinsing and disinfecting the items. The disinfection waste liquid flows into a designated collection container through the return port, preventing accumulation in the transfer room. During the spraying process, the return air control valve is in the open state. While spraying for disinfection, clean airflow continuously flows in, compressing the unclean air in the transfer room and expelling the unclean air from the transfer room through the return air port. After spraying, close the return air control valve. Clean airflow is then delivered downwards through the clean air supply device, blowing on the items placed on the grid. The upper part of the items (including the upper surface and outer periphery) is air-dried, removing surface moisture. A portion of the clean airflow passes through the grid and enters the return space, where it changes direction and blows upwards on the lower part of the items (including the lower surface and outer periphery). Once the surface moisture is completely dried, open the return air control valve. Any remaining residue is blown away by the airflow and discharged from the transfer chamber through the return air vent. During this process, some airflow enters the return air vent, while some changes direction in the return space, blowing upwards on the lower part of the items (including the lower surface and outer periphery), achieving comprehensive air spraying. After air spraying, close the return air control valve. With the clean air supply device continuously supplying air, open the door and remove the items.

[0021] The clean pass-through window of this application can achieve comprehensive spraying of the upper and lower parts of the items, using disinfectant to rinse off particulate matter on the surface of the items and kill microorganisms on the surface of the items. Subsequently, through comprehensive air showering of the upper and lower parts of the items, not only can the items be dried, but surface adhering objects that were not rinsed off during the spraying process can also be blown away, achieving comprehensive disinfection and cleaning of the surface of the items, avoiding dead corners in disinfection and cleaning, and effectively improving the reliability of cleaning and disinfection. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the cleanroom pass-through window provided in Embodiment 1 of this application;

[0024] Figure 2 Schematic diagram of the internal structure of the cleanroom pass-through window provided in Embodiment 1 of this application Figure 1 ;

[0025] Figure 3 Schematic diagram of the internal structure of the cleanroom pass-through window provided in Embodiment 1 of this application Figure 2 The placement of the grille is not shown;

[0026] Figure 4 This is a schematic diagram of the assembly of the guide rail and the placement grid used in Embodiment 2 of this application;

[0027] Figure 5 This describes the compatibility state of the liquid filling box and the transfer window body used in Embodiment 3 of this application. Figure 1 ;

[0028] Figure 6 This describes the compatibility state of the liquid filling box and the transfer window body used in Embodiment 3 of this application. Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the airflow state in the transfer room used in Embodiment 4 of this application. In the diagram, the arrow represents the airflow delivered by the clean air supply device, and the dashed arrow represents the return airflow that flows upward after being guided by the return flow table.

[0030] In the diagram: 1. Pass-through window main body; 101. Pass-through chamber; 102. Liquid chamber; 103. Control room; 104. Return space; 105. Turning surface; 2. Placement grid; 3. Spray device; 310. Spray assembly; 311. Spray head; 4. Clean air supply device; 5. Control device; 510. Touch panel; 6. Front door; 7. Rear door; 8. Liquid return port; 9. Air return port; 10. Return platform; 11. Liquid level observation window; 12. Liquid filling port; 13. Clearance space; 14. Liquid filling box; 1401. Liquid filling channel; 1410. Sealing strip; 1420. Switch handle; 15. Guide rail; 1510. Vertical guide plate; 1520. Horizontal guide plate; 1530. Guide slope; 16. Ultraviolet sterilization lighting device; 1610. Ultraviolet lamp. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0032] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a number" means two or more, unless otherwise explicitly specified.

[0034] Please refer to the following: Figures 1 to 7 The cleanroom pass-through window provided in this application is described below. The cleanroom pass-through window includes a pass-through window body 1, a placement grille 2, a spray device 3, a cleanroom air supply device 4, and a control device 5. The pass-through window body 1 contains a pass-through chamber 101, a liquid chamber 102, and a control chamber 103, which are isolated from each other. The liquid chamber 102 and the control chamber 103 are distributed vertically and are both located on the same side of the pass-through chamber 101. The pass-through chamber 101 has a front door 6 on its front side and a rear door 7 on its rear side. The placement grille 2 is installed inside the pass-through chamber 101 and can hold items. The placement grille 2 is spaced vertically from the bottom wall of the pass-through chamber 101 and forms a return loop. The transfer chamber 104 is equipped with a spray device 3 located in the transfer chamber 101 and connected to the liquid chamber 102 via a pipe to spray disinfectant from the liquid chamber 102 onto the upper and lower parts of the items placed on the grid 2. The bottom wall of the transfer chamber 101 is provided with a return port 8. The clean air supply device 4 is located at the top of the transfer chamber 101 and can supply air downwards. The bottom of the transfer chamber 101 is provided with a return air port 9, and a return air control valve is provided at the return air port 9. The control device 5 is located in the control room 103. The front door 6, the rear door 7, the spray device 3, and the clean air supply device 4 are electrically connected to the control device 5.

[0035] In this embodiment, the clean air supply device 4 is a high-efficiency filter that can filter particulate matter in the air before introducing it into the transfer chamber 101, ensuring the cleanliness of the air inside the transfer chamber 101.

[0036] In this embodiment, the placement grid 2 has grid holes, which allow for liquid and air leakage, preventing the sprayed disinfectant from accumulating on the placement grid 2 and ensuring smooth airflow. Optionally, to maximize the area of ​​the grid holes, the placement grid 2 is formed by multiple intersecting stainless steel rods, creating a grid-like distribution of grid holes.

[0037] The process of using the cleanroom transfer window in this embodiment is roughly as follows: First, the cleanroom air supply device 4 is turned on by the control device 5, and the return air control valve is in the closed state. The clean airflow in the cleanroom continuously flows into the transfer room 101, creating a positive pressure environment in the transfer room 101. After opening the front door 6, the positive pressure environment in the transfer room 101 can reduce the amount of outside air entering the transfer room 101 and reduce the degree of contamination in the transfer room 101. Then, the items are placed on the placement grid 2, the front door 6 is closed, and the disinfection and cleaning process is started by the control device 5. First, the disinfectant in the liquid chamber 102 is sprayed onto the upper and lower parts (including the upper surface, outer periphery, and lower surface) of the items on the placement grid 2 through the spray device 3, thoroughly rinsing and disinfecting the items. The disinfectant waste flows into the designated collection container through the return port 8 to avoid accumulating in the transfer chamber 101. During the spraying process, the return air control valve is in the open state. While spraying for disinfection, clean airflow continuously flows in, squeezing out the unclean air in the transfer chamber 101 and expelling the unclean air from the transfer chamber 101 through the return air port 9. After the spraying is completed, the return air control valve is closed, and clean airflow is sent downward through the clean air supply device 4 to blow on the items on the placement grid 2. The upper part of the items (including the upper surface and the upper part of the outer periphery) is air-dried, which can dry the moisture on the surface of the items. A portion of the clean airflow enters the return space 104 after passing through the placement grid 2. The airflow changes direction in the return space 104 and blows upward on the lower part of the items (including the lower surface and the lower part of the outer periphery). After the surface moisture of the items has been completely dried, the return air control valve is opened, and any remaining residue on the surface is blown away by the air shower. The residue is then discharged from the transfer chamber 101 through the return air vent 9. During this process, some airflow enters the return air vent 9, while some airflow changes direction in the return space 104, blowing upwards onto the lower part of the items (including the lower surface and the lower outer perimeter), achieving a comprehensive air shower. After the air shower is complete, the return air control valve is closed, and the back door 7 is opened to remove the items while the clean air supply device 4 continues to supply air.

[0038] During the disinfection and cleaning process, the control device 5 keeps the front door 6 and the rear door 7 locked and prevents them from being opened.

[0039] In this embodiment, the disinfectant can be chlorhexidine or other disinfectants; no single type is specified. Additionally, the outer perimeter of the item includes the front, rear, left, and right sides, which are sequentially connected to form a closed loop.

[0040] The clean pass-through window provided in this application, compared with existing technologies, can achieve comprehensive spraying of the upper and lower parts of items, using disinfectant to rinse off particulate matter on the surface of the items and kill microorganisms on the surface of the items. Subsequently, comprehensive air showering of the upper and lower parts of the items can not only dry the items, but also further blow away surface attachments that were not rinsed off during the spraying process, achieving comprehensive disinfection and cleaning of the surface of the items, avoiding disinfection and cleaning dead corners, and effectively improving the reliability of cleaning and disinfection. At the same time, by combining chemical disinfection (spraying disinfectant) and physical cleaning (air showering), it can also prevent the development of drug resistance and tolerance in microorganisms.

[0041] In addition, since the liquid chamber 102 and the control chamber 103 are distributed along the vertical direction and are both located on the same side of the transfer chamber 101, the functional areas of the transfer window main body 1 are effectively divided. The transfer area occupies one side of the space, while auxiliary functions such as control and liquid regulation occupy the other side of the space. This improves the compactness of the structure in the left and right directions, and does not require the space above the transfer chamber 101. The dimensions in the vertical direction can also be optimized. Furthermore, the auxiliary operation function and the transfer function do not interfere with each other, thus improving the ease of use.

[0042] In some embodiments, the pipe connecting the spray device 3 and the liquid chamber 102 is embedded in the side wall of the transfer chamber 101, reducing the area of ​​the pipe exposed in the transfer chamber 101. This avoids the problem of cleaning dead zones caused by the pipe being installed in the transfer chamber 101, ensuring the cleanliness of the transfer chamber 101. Optionally, a disinfectant supply pump is provided in the liquid chamber 102, and the pipe is connected to the disinfectant supply pump to provide power for spraying disinfectant.

[0043] In some embodiments, see Figure 2 and Figure 3 Multiple return air vents 9 are provided, distributed in the middle of the bottom wall of the transfer chamber 101. Increasing the number of return air vents 9 improves the uniformity of the return air distribution and the dispersion of airflow during return, thereby improving return air efficiency and preventing turbulence that could cause abnormal noise during return. The liquid return port 8 is located at the edge of the bottom wall of the transfer chamber 101, guiding the liquid to the edge of the transfer chamber 101 before discharge, improving the concentration of liquid during return and thus improving the smoothness of liquid discharge.

[0044] This embodiment exemplifies a configuration where six return air inlets 9 are arranged in a rectangular array in the middle of the bottom wall of the transfer chamber 101. Simultaneously, four liquid return outlets 8 are located on the left edge of the bottom wall of the transfer chamber 101 and distributed along the front-to-back direction. More specifically, to improve liquid return efficiency, the bottom wall of the transfer chamber 101 is designed as a sloping wall with a lower left side and a higher right side, allowing air and liquid to converge on the left side. However, to avoid an excessively large inclination angle affecting the backflow function, the inclination angle of the bottom wall of the transfer chamber 101 is no greater than 7°.

[0045] In some embodiments, see Figure 1 Both the front door 6 and the rear door 7 are equipped with viewing windows, allowing staff to observe the cleaning status of items and promptly stop and adjust the machine in case of any abnormalities. Furthermore, to enable control of the opening and closing of the front door 6 and the rear door 7 via the control device 5, a front door lock is installed between the front door 6 and the transfer chamber 101, and a rear door lock is installed between the rear door 7 and the transfer chamber 101. Both the front and rear door locks are electromagnetic locks, and both are electrically connected to the control device 5, thus enabling control of the opening and closing of the front door 6 and the rear door 7 via the control device 5.

[0046] In some embodiments, the return air control valve is a one-way valve. When the air pressure in the transfer chamber 101 reaches a preset high value, the return air control valve opens, exhausting the air in the transfer chamber 101. The exhausted air enters the air purification unit equipped in the cleanroom, is purified, and then re-enters the cleanroom, thus achieving air circulation within the cleanroom. The air purification unit is generally a high-efficiency filter, capable of adsorbing particulate matter, organic pollutants, etc., ultimately filtering out airborne particles and microorganisms. The type of high-efficiency filter can be any existing filter, and is not limited to a single type.

[0047] Based on the above embodiment, the lower part of the return air inlet 9 is connected to the return air duct, and the return air duct is equipped with a return air pump. When the return air control valve is opened, the return air pump starts and begins to draw air from the transfer chamber 101 to improve the exhaust efficiency. When the air pressure in the transfer chamber 101 drops to a preset low value, the return air control valve closes and the return air pump stops running.

[0048] In one specific implementation, to achieve the linkage between the return air control valve and the return air pump, the return air control valve can be a solenoid valve. A pressure sensor is installed in the transmission chamber 101. The pressure sensor, return air pump, and return air control valve are all connected to an industrial control computer. When the pressure sensor detects that the air pressure in the transmission chamber 101 has reached a preset high value, it feeds back the pressure value information to the industrial control computer, which then controls the return air control valve and return air pump to open. When the pressure sensor detects that the air pressure in the transmission chamber 101 has reached a preset low value, it feeds back the pressure value information to the industrial control computer, which then controls the return air control valve and return air pump to close. This embodiment uses a pressure sensor for sensing, resulting in better stability.

[0049] In another specific implementation, to achieve the linkage between the return air control valve and the return air pump, the return air control valve is a mechanical valve with a limit switch inside its valve core. When the pressure in the transmission chamber 101 reaches a preset high value, the valve core in the return air control valve moves open under pressure, simultaneously triggering the limit switch. The limit switch feeds back a status signal change to the industrial control computer, which then controls the return air pump to start. When the air pressure in the transmission chamber 101 reaches a preset low value, the valve core of the return air control valve resets, moving away from the limit switch. The limit switch feeds back a status signal change to the industrial control computer, which then controls the return air pump to shut down. This embodiment does not require a pressure sensor, resulting in lower operating costs. In this embodiment, the trigger end of the limit switch extends into the housing of the return air control valve. After the valve core of the return air control valve moves to a certain position, the edge of the valve core can touch the trigger end, thereby changing the signal state of the limit switch. The implementation of the return air control valve includes, but is not limited to, a spring-loaded check valve, and the implementation of the limit switch includes, but is not limited to, a micro switch.

[0050] In some embodiments, see Figure 7 The sidewall and bottom wall of the transfer chamber 101 are transitioned by an arc-shaped turning surface 105. A conical truncated recirculation platform 10 is provided at the center of the recirculation space 104. The generatrix of the recirculation platform 10 is an arc, and the top surface of the recirculation platform 10 is a plane. Figure 7 In the center, the rectangular dashed box above grid 2 represents an item. Figure 7 Taking the structure shown as an example, with the return air control valve closed, the air supplied downward by the clean air supply device 4 first blows onto the upper part of the upper items (including the upper surface and the upper part of the outer periphery of the items), and then changes direction to flow downward from the gap between the items and the side wall of the transfer chamber 101; after passing through the upper placement grille 2, part of the airflow continues to flow downward until it passes through the lower placement grille 2 and enters the return space 104, and part of the airflow turns to flow towards the gap between the items and the side wall of the transfer chamber 101 after blowing onto the upper part of the lower items; after the airflow flows downward into the return space 104, the downward airflow smoothly turns under the guidance of the turning surface 105 and flows towards the return platform 10 at the center position. Under the guidance of the outer periphery of the return platform 10, the airflow smoothly turns upward and blows towards the upper placement grille 2, and continues to flow upward through the grille holes on the placement grille 2.

[0051] Optionally, the height of the reflux space 104 is defined as H1. If there are multiple placement grids 2, the distance between two adjacent placement grids 2 is H2, and the distance between the uppermost placement grid 2 and the top wall of the transfer chamber 101 is H3. The ratio of H2 to H1 is 1.5 to 3, and the ratio of H3 to H1 is 1.5 to 3. Setting the height of the reflux space 104 to be relatively small can reduce the impact on the actual volume of the transfer chamber 101, and also provide a stronger upward flow force after the gas is diverted.

[0052] In some embodiments, see Figure 1 To facilitate operation by staff on both the front and back sides of the pass-through window 1, the control device 5 has touch panels 510 on both the front and back sides. These touch panels 510 can be either touchscreens or panels with buttons.

[0053] In some embodiments, see Figure 1 The liquid chamber 102 has liquid level observation windows 11 on both the front and rear sides, which allows personnel on both sides of the transfer window body 1 to easily observe the liquid level in the liquid chamber 102 and add liquid in a timely manner. To enable liquid addition, a liquid inlet 12 communicating with the liquid chamber 102 is provided above the liquid level observation window 11. The liquid inlet 12 has a sealed state and an open state, and liquid can be added in the open state.

[0054] Based on the above embodiments, see Figure 5 and Figure 6 The liquid chamber 102 has clearance openings 13 on its front and rear side walls, and a liquid level observation window 11 is located below the clearance openings 13. The clean transfer window also includes a liquid filling box 14, which has a vertically penetrating liquid filling channel 1401. The upper end of the liquid filling channel 1401 forms a liquid filling port 12. The lower edge of the liquid filling box 14 is hinged to the lower edge of the clearance openings 13, and the liquid filling box 14 has a sealed state that blocks and seals the clearance openings 13 (e.g., Figure 5 As shown), it also has a liquid filling state where the upper part rotates outward to avoid leaving a gap 13 (as shown). Figure 6 (As shown). In the sealed state, the filling port 12 is located above the liquid chamber 102 to prevent liquid from overflowing from the filling port 12. At the same time, the filling port 12 is exposed by rotating the filling box 14. After filling, it is rotated back to seal. The filling-related structures always remain connected to the transfer window body 1 to prevent the loss of parts. The filling channel 1401 has a guiding function, which is conducive to smooth liquid flow. In addition, by reasonably setting the size of the opening at the upper end of the filling channel 1401, it is easier to add liquid. Alternatively, a funnel can be installed at the unscrewed filling port 12 to facilitate liquid addition.

[0055] Optionally, to ensure the filling box 14 maintains a sealed state with the edge of the clearance 13, a sealing strip 1410 is provided on the edge of the filling box 14, which abuts against the edge of the clearance 13. More specifically, to accommodate the swinging motion of the filling box 14, the sealing strip 1410 has a fan-shaped cross-section, see [reference needed]. Figure 5 and Figure 6 Its curved surface abuts against the edge of the clearance 13.

[0056] Optional, see Figure 5 and Figure 6 To facilitate switching the state of the liquid filling box 14, a switch handle 1420 is provided on the upper edge of the liquid filling box 14. The switch handle 1420 protrudes from the transfer window body 1 and the sealing strip 1410 to facilitate the application of force when switching.

[0057] In some embodiments, see Figure 2 and Figure 3 The spray device 3 includes multiple spray components 310 spaced apart from top to bottom to spray the upper parts (including the upper surface and the upper part of the outer periphery) of items of different heights. Simultaneously, nozzles 311 below the items can also spray the lower parts (including the lower surface and the lower part of the outer periphery) of adjacent items above. Each spray component 310 includes multiple nozzles 311 distributed circumferentially along the transfer chamber 101. Each nozzle 311 is connected to the liquid chamber 102 to provide comprehensive spraying around the circumference of the items. The nozzles 311 within the same spray component 310 are approximately the same height, although a certain height difference is permissible. Each nozzle 311 is vertically and vertically connected to the side wall of the transfer chamber 101. Before use, the operator can adjust the height of the nozzles 311 to accommodate different item sizes. Optionally, in order for the nozzle 311 to spray onto the object above, the spray direction of the nozzle 311 is perpendicular to the vertical direction, or the spray direction of the nozzle 311 is slightly tilted upwards, with an angle of 85° to 75° (e.g., 82°, 80°, 78°) with the vertical direction.

[0058] Optionally, to adjust the height of the nozzle 311, a lifting adjustment assembly is installed on the side wall of the transfer chamber 101. The lifting adjustment assembly includes a guide bracket located on the side wall of the transfer chamber 101 and a sliding bracket connected to the nozzle 311. The sliding bracket and the guide bracket are slidably fitted together and can be locked at a specified height. Each nozzle 311 is equipped with a different lifting adjustment assembly to achieve independent adjustment of the nozzle 311. An example of the fitting method between the sliding bracket and the guide bracket is as follows: The guide bracket includes a vertically arranged screw and a vertically arranged guide rod. The screw can rotate along its own long axis. An adjustment knob is located at the upper or lower part of the screw. The guide rod is located on one side of the screw. The sliding bracket is screwed to the screw and slidably fitted to the guide rod. By turning the knob, the screw rotates. Under the limiting action of the guide rod, the sliding bracket can only move up and down, thereby achieving the lifting and lowering of the nozzle 311. After adjustment, it self-locks through a threaded structure, eliminating the need for an additional locking structure.

[0059] In some embodiments, see Figure 4The transfer chamber 101 is equipped with multiple guide components spaced apart from top to bottom, alternating with the spray components 310 in the vertical direction. Each guide component includes two guide rails 15 located on the left and right walls of the transfer chamber 101, with the two guide rails 15 in the same guide component positioned opposite each other. The guide rails 15 extend in the front-to-back direction, and the placement grille 2 is inserted into and fitted with the guide rails 15. The multiple guide components provide installation positions at different heights, facilitating the adjustment of the position and number of placement grilles 2 according to the size and quantity of items. At the same time, the alternating arrangement of the guide components and spray components 310 also avoids interference between the height adjustment of the placement grille 2 and the spray head 311.

[0060] In some specific embodiments of the guide rail 15, see Figure 4 The guide rail 15 includes a vertical guide plate 1510 and a horizontal guide plate 1520. The horizontal guide plate 1520 is vertically connected to the lower part of the vertical guide plate 1510. The vertical guide plate 1510 is fitted to the side wall of the transfer chamber 101. The horizontal guide plate 1520 is used to support the lower surface of the edge of the grid 2. A guide slope 1530 is provided between the vertical guide plate 1510 and the horizontal guide plate 1520. The distance between the opposite faces of the two vertical guide plates 1510 in the same guide assembly is D1, the width of the grid 2 is D2, and the distance between the lower edges of the two guide slopes 1530 in the same guide assembly is D3, where D1 > D2 and D2 = D3. The guide slope 1530 gradually slopes upward from the inside to the outside. One end of the placement grid 2 is first placed on the transverse guide plate 1520, and then the placement grid 2 is pushed to the other side until the placement grid 2 is completely pushed into the transfer chamber 101. Under the guidance of the guide slope 1530, the placement grid 2 can be aligned with the position between the bottom ends of the two guide slopes 1530, thereby improving the positioning accuracy of the placement grid 2.

[0061] In some embodiments, see Figure 2 and Figure 3 The cleanroom transfer window also includes an ultraviolet (UV) sterilization lighting device 16, which is located on the left and / or right side walls of the transfer chamber 101 and is electrically connected to the control device 5. This embodiment exemplifies an example where UV sterilization lighting devices 16 are installed on both the left and right side walls of the transfer chamber 101. By installing the UV sterilization lighting device 16, UV sterilization can be performed as needed, improving the flexibility of disinfection and cleaning.

[0062] Based on the above embodiments, see Figure 2 and Figure 3The ultraviolet sterilization lighting device 16 includes multiple ultraviolet lamps 1610. The ultraviolet lamps 1610 are embedded in the corresponding side wall of the transfer chamber 101, and the lighting surface is flush with the corresponding side wall surface of the transfer chamber 101, so as to avoid interference with the placement grid 2 and improve the flexibility of the placement grid 2 setting or position adjustment.

[0063] Optionally, multiple ultraviolet lamps 1610 are provided on the left and right walls of the transfer chamber 101. The multiple ultraviolet lamps 1610 are distributed in the vertical direction so as to fully irradiate the upper and lower parts of the items (including the upper surface, outer peripheral surface and lower surface of the items), thereby improving the comprehensiveness and reliability of sterilization.

[0064] Specifically, to facilitate the installation of the UV lamp 1610, a lamp housing recess is formed on the left and / or right side walls of the transfer chamber 101. The UV lamp 1610 is placed within the lamp housing recess, with its illumination surface flush with the corresponding side wall of the transfer chamber 101. Furthermore, a wire housing recess is also provided on the side wall of the transfer chamber 101, which communicates with the lamp housing recess. This allows the wires of the UV lamp 1610 to be led out to the control chamber 103 while ensuring isolation from the liquid chamber 102, thus preventing the lead wires of the UV lamp 1610 from contacting the disinfectant.

[0065] Optionally, the sidewall of the transfer chamber 101 is formed with lamp body receiving groove and wire receiving groove by injection molding, stamping or other methods to ensure the sealing of the groove.

[0066] Optionally, a lamp sealing ring is provided at the opening end of the lamp body receiving groove. The lamp sealing ring abuts against the outer periphery of the UV lamp 1610 illumination surface to prevent disinfectant from entering the assembly gap between the UV lamp 1610 and the lamp body receiving groove.

[0067] Optionally, the UV lamp 1610 is plugged into the lamp body receiving groove. A first quick-connect connector is located at the bottom of the groove, and a second quick-connect connector is located on the back of the UV lamp 1610. The lead wire of the first quick-connect connector extends along the wire receiving groove and connects to the control device 5. After the UV lamp 1610 is fully inserted into the lamp body receiving groove, the first and second quick-connect connectors engage, establishing an electrical connection between the UV lamp 1610 and the control device 5. After the UV lamp 1610 is removed, the first and second quick-connect connectors disengage. This assembly method effectively reduces the difficulty of installing, removing, and maintaining the UV lamp 1610, thus helping to reduce the overall maintenance cost of the transfer window.

[0068] More specifically, the edge of the illuminating surface of the UV lamp 1610 is provided with a flexible pull ring. When it is necessary to remove the UV lamp 1610, the flexible pull ring can be pulled. Under normal use, the flexible pull ring hangs down and does not occupy much space inside the transfer chamber 101. The flexible pull ring can be implemented in ways including but not limited to a silicone pull ring. Preferably, the flexible pull ring is located at the lower edge of the UV lamp 1610, and after installation, it hangs down and fits against the side wall of the transfer chamber 101 to avoid obstructing the illuminating surface of the UV lamp 1610.

[0069] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cleanroom pass-through window, characterized in that, include: The main body of the transfer window (1) has a transfer chamber (101), a liquid chamber (102) and a control chamber (103) that are isolated from each other. The liquid chamber (102) and the control chamber (103) are distributed in the vertical direction and are both located on the same side of the transfer chamber (101). The transfer chamber (101) has a front door (6) on the front side and a rear door (7) on the rear side. A placement grille (2) is installed inside the transfer chamber (101) and can hold items. The placement grille (2) is spaced vertically from the bottom wall of the transfer chamber (101) to form a backflow space (104). A spraying device (3) is installed in the transfer chamber (101) and connected to the liquid chamber (102) through a pipe to spray the disinfectant in the liquid chamber (102) onto the upper and lower parts of the items on the placement grid (2). The bottom wall of the transfer chamber (101) is provided with a return port (8). A clean air supply device (4) is located at the top of the transfer chamber (101) and can supply air downwards. A return air inlet (9) is provided at the bottom of the transfer chamber (101), and a return air control valve is provided at the return air inlet (9). The control device (5) is located in the control room (103). The front door (6), the rear door (7), the spray device (3) and the clean air supply device (4) are electrically connected to the control device (5).

2. The cleanroom transfer window as described in claim 1, characterized in that, The side wall and bottom wall of the transfer chamber (101) are connected by an arc-shaped turning surface (105). The center of the return space (104) is provided with a conical truncated return platform (10). The generatrix of the return platform (10) is an arc, and the top surface of the return platform (10) is a plane.

3. The cleanroom transfer window as described in claim 1, characterized in that, The control device (5) has a touch panel (510) on both the front and rear sides.

4. The cleanroom transfer window as described in claim 1, characterized in that, The liquid chamber (102) has a liquid level observation window (11) on both the front and rear sides. Above the liquid level observation window (11) is a liquid inlet (12) that communicates with the liquid chamber (102). The liquid inlet (12) has a sealed state and an open state.

5. The cleanroom transfer window as described in claim 4, characterized in that, The liquid chamber (102) has clearance openings (13) on its front and rear side walls respectively, and the liquid level observation window (11) is located below the clearance openings (13). The clean transfer window also includes a liquid filling box (14), which has a liquid filling channel (1401) that runs vertically through the liquid filling channel (1401) and forms the liquid filling port (12). The lower edge of the liquid filling box (14) is hinged to the lower edge of the clearance openings (13). The liquid filling box (14) has a sealed state that blocks and seals the clearance openings (13), and also has a liquid filling state in which the upper part rotates outward from the clearance openings (13).

6. The cleanroom transfer window as described in claim 1, characterized in that, The spray device (3) includes a plurality of spray components (310) spaced apart from top to bottom. Each spray component (310) includes a plurality of nozzles (311) distributed circumferentially along the transfer chamber (101). Each nozzle (311) is connected to the liquid chamber (102) and is vertically and vertically connected to the side wall of the transfer chamber (101).

7. The cleanroom transfer window as described in claim 6, characterized in that, The transfer chamber (101) is provided with a plurality of guide components distributed at intervals from top to bottom. In the vertical direction, the guide components and the spray components (310) are alternately distributed. Each guide component includes two guide rails (15) respectively located on the left and right walls of the transfer chamber (101). The guide rails (15) extend in the front-back direction. The placement grid (2) is inserted and matched with the guide rails (15) in the front-back direction.

8. The cleanroom transfer window as described in claim 7, characterized in that, The guide rail (15) includes a vertical guide plate (1510) and a horizontal guide plate (1520). The horizontal guide plate (1520) is vertically connected to the lower part of the vertical guide plate (1510). The vertical guide plate (1510) is fitted and connected to the side wall of the transfer chamber (101). The horizontal guide plate (1520) is used to support the lower surface of the edge of the placement grid (2). A guide slope (1530) is provided between the vertical guide plate (1510) and the horizontal guide plate (1520). The distance between the opposite faces of the two vertical guide plates (1510) in the same guide assembly is D1. The width of the placement grid (2) is D2. The distance between the lower edges of the two guide slopes (1530) in the same guide assembly is D3, wherein D1 > D2 and D2 = D3.

9. The cleanroom pass-through window as described in claim 1, characterized in that, The clean transfer window also includes an ultraviolet sterilization lighting device (16), which is located on the left side wall and / or right side wall of the transfer chamber (101) and is electrically connected to the control device (5).

10. The cleanroom pass-through window as described in claim 9, characterized in that, The ultraviolet sterilization lighting device (16) includes a plurality of ultraviolet lamps (1610), which are embedded in the corresponding side wall of the transfer chamber (101) and the lighting surface is flush with the corresponding side wall surface of the transfer chamber (101).

Images