Material transfer window for pharmaceutical clean area

Abstract

This invention provides a material transfer window for pharmaceutical clean areas, belonging to the field of transfer windows. The technical solution includes: a box body with doors hinged at both ends, a double-layered viewing window in the middle of each door, a baffle mechanism in the center of the box body, and a shelf on the baffle mechanism; the baffle mechanism includes a pivot shaft between the top and bottom surfaces of the box body, with a pair of symmetrical baffles distributed on both sides of the pivot shaft, the upper and lower sides of the baffles sliding along the top and bottom surfaces of the box body respectively; the shelf includes a fixed part and a movable part. The beneficial effects of this invention are: by setting a shelf inside the box body, with a fixed and movable part, the bottom of the items can be disinfected by staggered lifting; the baffle mechanism, when not rotating, divides the box body into an inner and outer cavity, and can provide temporary isolation in the event of door interlock failure, further reducing the risk of contamination.

Description

Technical Field

[0001] This invention relates to the field of transfer windows, and more particularly to a material transfer window for use in pharmaceutical clean areas. Background Technology

[0002] Material transfer windows are key equipment for transferring materials between clean and non-clean areas, as well as between clean areas of different levels.

[0003] In existing technology, the pass-through window is made of stainless steel plate with a square cross-section and a through-hole design. The cavity of the box forms an internal and external passage for passing items. Sterilization facilities such as ultraviolet germicidal lamps are installed in the passage to disinfect the passed items. Cabinet doors are located at both ends of the passage, and mechanical interlocking devices are installed on the two doors to prevent them from opening simultaneously, thus effectively preventing cross-contamination. However, because items are placed directly in the passage, the bottom of the items that contacts the passage is not easily disinfected during sterilization. Summary of the Invention

[0004] The purpose of this invention is to provide a material transfer window for a medical clean area that facilitates the disinfection of the bottom of items.

[0005] This invention is achieved through the following measures: A material transfer window for a pharmaceutical clean area is characterized by comprising a box body with two connected ends, each end of which is hinged with a matching door. A double-layered viewing window is provided in the middle of each door, and the double-layered viewing window is fixedly and sealed to the door with sealant. The double-layered viewing window has the same thickness as the door, and both sides form the same flat horizontal plane. The two doors are centrally symmetrical, meaning that one door can overlap with the other door after rotating 180 degrees along the center point of the box body or through the central axis of the upper and lower sides of the box body. A baffle mechanism that can rotate inside the box body is provided in the middle of the box body. The baffle mechanism divides the internal space of the box body into an inner cavity and an outer cavity, and isolates the inner cavity and outer cavity through the baffle mechanism. A shelf is provided on the baffle mechanism. The baffle mechanism includes a rotating shaft disposed between the top and bottom surfaces of the box. Obviously, the rotating shaft is located at the center of the box. A pair of symmetrical baffles are disposed on both sides of the rotating shaft. The upper and lower sides of the baffles slide along the top and bottom surfaces of the box, respectively. The shelf includes a fixed part and a movable part.

[0006] The invention also has the following specific features: The baffle mechanism also includes a limiting structure that cooperates with the baffle. The limiting structure includes grooves on the left and right side walls of the box. Sliding grooves are provided on the upper and lower side surfaces of the grooves on both sides. Sliding sliders are slidably disposed in the sliding grooves on both sides. The sliders slide in the sliding grooves along the front-back direction of the box. In this embodiment, the side of the transfer window facing the clean area is defined as the rear side, and the side facing the non-clean area is defined as the front side. A sliding plate that slidably cooperates with the groove is provided between the two sliders. Obviously, the sliding plate slides in the groove along the front-back direction of the box with the slider. The upper and lower sides of the sliding plate slide against the upper and lower side surfaces of the groove respectively, and the outer side of the sliding plate is flush with the inner wall of the box. A U-shaped limiting plate that cooperates with the baffle is provided on the outer side of the sliding plate away from the groove. The upper and lower sides of the U-shaped limiting plate slide against the top and bottom surfaces of the box respectively. One side baffle, perpendicular to the left and right walls of the box, is pressed against the rear side of the corresponding U-shaped limiting plate along the front-rear direction of the box. The other side baffle is pressed against the front side of the corresponding U-shaped limiting plate along the front-rear direction of the box. That is, the sides of the baffle near the free edge and the upper and lower sides are all pressed against the corresponding sides of the U-shaped limiting plate. This allows the baffle mechanism to separate the box into two spaces, namely the inner cavity and the outer cavity. Combined with the design of the upper and lower sides of the baffle fitting against the top and bottom surfaces of the box, the entire baffle mechanism can achieve a certain degree of sealing. At this time, the corresponding sides of the two sliding plates are pressed against the corresponding side surfaces in the groove.

[0007] The rotating shaft has a long groove, and a lead screw is rotatably mounted between the upper and lower sides of the long groove. A lead screw slider is mounted around the lead screw and slides in cooperation with the long groove. The fixed part includes several sets of support plates I evenly and side-by-side fixed to the side baffles. A gap I is provided between adjacent support plates I. The outer periphery of the several sets of support plates I is semi-circular, designed to facilitate rotation of the fixed part within the housing along with the rotating shaft I. The movable part includes a middle plate mounted on the lead screw slider. An arc-shaped plate that cooperates with the semi-circular structure is mounted on the free end of the middle plate. Several sets of support plates II, parallel to the middle plate, are evenly mounted on the arc-shaped plates on both sides of the middle plate. A gap I is provided between the middle plate and adjacent support plates II. There is a gap 2 between each of the two adjacent support plates 2, which cooperates with the support plate 1. The middle plate and the support plate 2 cooperate with the gap 1. When the lead screw rotates, it drives the lead screw slider and the movable part to move. The middle plate and support plate 2 of the movable part will pass through the corresponding gap 1, while the support plate 1 of the fixed part will pass through the corresponding gap 2. Obviously, the arc plate is located on the outer periphery of the semi-circular structure. Initially, the movable part is located below the fixed part. The items to be transferred are first placed on the fixed part, and then the items are disinfected. Then the movable part moves up, passes through the fixed part, and replaces the fixed part to support the items. Then the items are disinfected again. In this way, the position where the items were in contact with the fixed part can also be disinfected.

[0008] The upper end face of the rotating shaft protrudes through the upper side of the housing and is fixed to the motor by a bracket. A round rod is provided at the upper end of the lead screw. The round rod movably protrudes through the upper end face of the rotating shaft and is set on the output shaft of the motor. The motor drives the lead screw to rotate through the round rod, thereby realizing the up and down movement of the movable part.

[0009] A gear is provided around the rotating shaft that extends out of the upper side of the box. A motor is provided on the upper side of the box via a corresponding bracket. A gear is provided on the output shaft of the motor to mesh with the gear. The motor drives the gear to rotate, which in turn drives the gear to rotate, thereby driving the rotating shaft to rotate. Finally, the baffle mechanism and the shelf rotate inside the box, thus transferring items from one side to the other, which realizes the transfer of items.

[0010] The box is provided with a door interlocking mechanism, which includes a pair of interlocking parts. The pair of interlocking parts are respectively arranged on the vertical sides of the left and right sides of the box. In one embodiment, the two interlocking parts are centrally symmetrical, that is, one side interlocking part can coincide with the other side interlocking part after rotating 180 degrees along the center point of the box or through the central axis of the upper and lower sides of the box. The interlocking part includes a mounting groove provided on the vertical side of the outer perimeter of the housing. An upper sliding groove and a lower sliding groove are respectively provided on the front and rear sides of the mounting groove. The upper sliding groove passes through the front end face of the vertical side of the housing, and the lower sliding groove passes through the rear end face of the vertical side of the housing. Matching upper sliding rods and lower sliding rods are slidably provided in the upper sliding groove and the lower sliding groove, respectively. A circular shaft is provided in the middle of the bottom surface of the mounting groove. The circular shaft is located in the middle between the upper sliding groove and the lower sliding groove. A middle rod is rotatably mounted on the circular shaft. The circular shaft is located in the middle of the middle rod. The two ends of the middle rod are movably connected to the inner ends of the upper sliding rod and the lower sliding rod, respectively. The outer end of the upper sliding rod is close to the opening and closing part of one side door, and the outer end of the lower sliding rod is close to the hinge part of the other side door. A torsion spring is provided around the outer periphery of the circular shaft. One end of the torsion spring is fixed to the bottom surface of the mounting groove, and the other end of the torsion spring is fixed to the intermediate rod. Under the action of the torsion spring, the outer ends of the upper sliding rod and the lower sliding rod respectively pass through the two end faces of the vertical side of the box. The inner side of the door near the hinge is provided with a socket that mates with the outer end of the sliding rod. When one side of the door is opened, the outer end of the sliding rod is inserted into the socket of the other side of the door under the action of the torsion spring, thereby locking the other side of the door. That is, when one side of the door is opened, the other side of the door cannot be opened.

[0011] Both sides of the circular shaft have waist holes on the intermediate rods. The inner ends of the upper and lower sliding rods are provided with sliding rods that cooperate with the waist holes through the bracket plate. The sliding rods are movably installed in the waist holes. When one side door is closed, it will squeeze the corresponding upper sliding rod to slide into the upper sliding groove, thereby pushing the intermediate rod to rotate. This causes the lower sliding rod to slide into the lower sliding groove and retract into the lower sliding groove, thus disengaging from the insertion hole of the other side door. That is, the other side door can only be opened after this side door is closed.

[0012] The housing is equipped with a shaft interlocking mechanism, which includes a large gear and a small gear that are respectively connected to and mesh with each other via rotating shaft two and rotating shaft three on the bottom surface of the mounting groove. The small gear is located in the middle of rotating shaft three, and a limit block is provided on the outer side near the outer end of rotating shaft three. The front part of rotating shaft three and the limit block form a limit rod. An L-shaped rod is provided on the inner end of the upper sliding rod, and a rack that meshes with the large gear is provided near the front end of the L-shaped rod. During the closing process, the upper sliding rod is pushed to move, thereby causing the rack to drive the large gear to rotate. During the entire process from the rack meshing with the large gear to passing through the large gear, the large gear drives the small gear to rotate, and the limit block rotates at least 45 degrees and no more than 90 degrees.

[0013] The lower end of the rotating shaft passes through the lower side of the housing and is surrounded by a gear three. Both sides of the gear three are equipped with symmetrical locking mechanisms. The locking mechanism includes a T-shaped slide groove on the lower side of the housing, with the corresponding end of the T-shaped slide groove penetrating the vertical side of the housing. A matching T-shaped slide plate is slidably disposed in the T-shaped slide groove. One end of the T-shaped slide plate is provided with a gear four that cooperates with gear three and restricts the rotation of gear three. The other end of the T-shaped slide plate is provided with a vertical plate extending along the vertical side of the housing. The vertical plate is provided with a through groove that cooperates with a limiting rod. A plurality of springs are provided between the vertical plate and the vertical side of the box. The springs cause the gear four to mesh with the gear three, and the limiting rod just passes through the through groove. At this time, the limiting block can rotate along the outer side of the vertical plate with the rotation of the shaft three. When the limiting rod rotates to a certain angle with the through groove, the limiting block limits the vertical plate, so that the T-shaped slide can not slide outward, thereby keeping the gear four and the gear three meshing, and thus the gear four limits the gear three, and finally the shaft one cannot rotate. Preferably, the included angle is 45 degrees or 90 degrees. A cam is provided at the inner end of the upper sliding rod, and an inclined surface that cooperates with the cam is provided on the corresponding side of the vertical plate. When the upper sliding rod moves under the action of closing the door, firstly, the rack will mesh and rotate before the large gear, driving the large gear to rotate, thereby driving the rotation of the limiting rod. After the rack passes the large gear (i.e., disengages from the large gear), the limiting rod just rotates to coincide with the through groove, that is, the limiting rod can slide along the through groove. Then, with the continued movement of the upper sliding rod, the vertical plate will be pushed outward by the action of the cam and the inclined surface. The top (therefore, the distance between the rack and the cam should be designed reasonably) so that it slides outward through the cooperation of the T-shaped slider and the T-shaped groove, thereby disengaging the gear four and gear three, thereby releasing the limit on gear three, and finally releasing the limit on the rotating shaft one. Then the rotating shaft one can rotate under the drive of motor two. In addition, during the process of the vertical plate sliding outward, the limiting rod will slide into the through groove. It should be noted that only after both doors are completely closed and the locking mechanisms on both sides are completely released can motor two smoothly drive the baffle mechanism to rotate, so as to realize the transfer of items. When one side door is opened, the upper sliding rod slides outward under the action of the torsion spring. At this time, the cam slowly disengages from the vertical plate, and the vertical plate is reset under the action of the spring. During the reset process, the limiting rod passes through the through groove, and then the rack meshes with the large gear again, causing the limiting rod to reverse by a degree or a degree. That is, the limiting block rotates along the outer side of the vertical plate to an angle of a degree or a degree with the through groove, thereby achieving the limiting of the vertical plate.

[0014] The T-shaped sliding plate has a downwardly extending cylindrical rod. Gear four is rotatably mounted around the cylindrical rod via a central circular hole. A V-shaped notch is provided on the outer side of the cylindrical rod within the circular hole. A triangular stop block extending into the V-shaped notch is provided on the wall of the circular hole. Mounting holes are provided on both side walls of the V-shaped notch, and spring two is installed within each mounting hole. The free end of spring two is fixed to the corresponding side of the triangular stop block. If gear four is completely fixed, when gear four slides close to gear three, there may be a situation where the teeth cannot mesh properly. Therefore, this structure is designed to prevent this. The fourth gear has a certain rotational margin. When the triangular stop block is against one side of the V-shaped notch, the fourth gear will no longer rotate, thus allowing the fourth gear to mesh smoothly with the third gear and achieve the limiting of the third gear. It should be noted that the locking mechanism is a mechanism to prevent misoperation. When misoperation is found, it should be corrected in time, and the inside of the transfer window should be disinfected again. In one example of misoperation, after the items were placed in, the button of the second motor was accidentally pressed without closing the window for disinfection. At this time, the baffle mechanism will be locked by the locking mechanism and may rotate a certain angle. Although the angle is small, further disinfection is still required to prevent contamination.

[0015] In one specific embodiment, the housing is further provided with an outer shell, which is used to protect the motor and gear structure. The lower sides of the outer shell are provided with fixing strips for easy installation and fixation. After the door is closed, existing structures can be used for locking and securing. The simplest method is to install a plate with threaded holes on the corresponding side of the enclosure and a locking hole on the free side of the door. Bolts installed in the threaded holes and locking holes can then be used to secure the closed door. Alternatively, a latch structure similar to those found on interior doors, bathroom doors, and balcony doors can be used, featuring a spring-loaded return mechanism. When the door is closed, it automatically retracts under pressure from the door frame, and after closing, the spring ejects and locks into the door frame latch plate, achieving "automatic closure." In practice, a latch is installed on the free side of the door, and an auxiliary block with a door frame latch plate is installed on the corresponding side of the enclosure. This is existing technology and easily implemented by those skilled in the art, and will not be detailed further. Additionally, disinfection and sterilization facilities are installed in both the inner and outer cavities of the enclosure; this is existing technology and will not be detailed further.

[0016] Working process: When transferring items, first open the outer door, then place the item on the fixed part, close the door, and then start disinfecting the item. Then, by switching on the first control motor, the movable part moves upward, passes through the fixed part, and replaces the fixed part to support the item. After that, the item is disinfected again. Then, by switching on the second control motor, the baffle mechanism rotates, transferring the item from the outer cavity of the box to the inner cavity. After that, it can be disinfected again in the inner cavity. Finally, open the inner door, take out the item, and complete the transfer of items.

[0017] The beneficial effects of this invention are as follows: by setting a shelf inside the box, the shelf includes a fixed part and a movable part, and by lifting the items in an alternating manner, the bottom of the items can be disinfected; the baffle mechanism divides the box into an inner cavity and an outer cavity when it is not rotating, and can play a role in temporary isolation in the event of door interlock failure, which can further reduce the risk of contamination. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the box body after the outer shell is hidden in an embodiment of the present invention.

[0020] Figure 3 for Figure 2 A magnified view of A in the middle.

[0021] Figure 4 This is a schematic diagram showing the cooperation between the internal baffle mechanism and the sliding plate in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the assembled sliding plate and groove inside the box in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the relevant structures of the shaft interlocking mechanism and the door interlocking mechanism in an embodiment of the present invention (where the vertical plate is in an exploded state).

[0024] Figure 7 for Figure 6 A magnified view of B in the middle.

[0025] Figure 8 This is a schematic diagram of the bottom of the box in an embodiment of the present invention.

[0026] Figure 9 for Figure 8 A magnified view of C.

[0027] The attached diagram is labeled as follows: 1. Box body; 2. Door; 3. Gear II; 4. Motor II; 5. Motor I; 6. Gear I; 7. Baffle; 8. Movable part; 9. Support plate I; 10. Vertical plate; 11. Upper sliding rod; 12. L-shaped rod; 13. Cam; 14. Rotating shaft III; 15. Intermediate rod; 16. Sliding plate; 17. U-shaped limiting plate; 18. Lead screw; 19. Support plate II; 20. Arc plate; 21. Intermediate plate; 22. Gear III; 23. Spring I; 24. Waist hole; 25. Rack; 26. Large gear; 27. Limiting block; 28. Through groove; 29. ​​Lower sliding rod; 30. Gear IV; 31. T-shaped sliding plate; 32. Triangular stop block; 33. V-shaped notch groove; 34. Spring II. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not 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 the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0032] See Figures 1-9 A material transfer window for a pharmaceutical clean area includes a box 1 with two connected ends. Both ends of the box 1 are hinged with matching doors 2. A double-layered viewing window is provided in the middle of the door 2. The double-layered viewing window is fixedly and sealed to the door 2 by sealant. The double-layered viewing window and the door 2 have the same thickness and form the same flat horizontal plane on both sides. The two doors 2 are centrally symmetrical, that is, one side door 2 can be rotated 180 degrees along the center point of the box 1 or through the central axis of the upper and lower sides of the box 1 to coincide with the other side door 2. A baffle mechanism that can rotate inside the box 1 is provided in the middle of the box 1. The baffle mechanism divides the internal space of the box 1 into two equal parts, an inner cavity and an outer cavity, and isolates the inner cavity and the outer cavity through the baffle mechanism. A shelf is provided on the baffle mechanism. The baffle mechanism includes a rotating shaft 1 disposed between the top and bottom surfaces inside the housing 1. Obviously, the rotating shaft 1 is located at the center of the housing 1. A pair of baffles 7 are disposed on the rotating shaft 1 and are symmetrically distributed on both sides of the rotating shaft 1. The upper and lower sides of the baffles 7 slide along the top and bottom surfaces of the housing 1, respectively. The shelf includes a fixed part and a movable part.

[0033] The baffle mechanism also includes a limiting structure that cooperates with the baffle 7. The limiting structure includes grooves on the left and right side walls inside the box 1. Slide grooves are provided on the upper and lower side surfaces of the grooves on both sides. Sliding sliders are slidably provided in the slide grooves on both sides. The sliders slide in the slide grooves along the front and back direction of the box 1. In this embodiment, the side of the transfer window facing the clean area is defined as the rear side, and the side facing the non-clean area is defined as the front side. A sliding plate 16 that slidably cooperates with the groove is provided between the two sliders. Obviously, the sliding plate 16 slides in the groove along the front and back direction of the box 1 with the slider. The upper and lower sides of the sliding plate 16 slide against the upper and lower side surfaces of the groove respectively, and the outer side of the sliding plate 16 is flush with the inner wall of the box 1. A U-shaped limiting plate 17 that cooperates with the baffle 7 is provided on the outer side of the sliding plate 16 away from the groove. The upper and lower sides of the U-shaped limiting plate 17 slide against the top and bottom surfaces of the box 1 respectively. One side baffle 7, perpendicular to the left and right walls of the box 1, is pressed against the rear side of the corresponding U-shaped limiting plate 17 along the front-rear direction of the box 1. The other side baffle 7 is pressed against the front side of the corresponding U-shaped limiting plate 17 along the front-rear direction of the box 1. That is, the sides of the baffle 7 near the free edge and the upper and lower sides are all pressed against the corresponding sides of the U-shaped limiting plate. This allows the baffle mechanism to separate the box 1 into two spaces, namely the inner cavity and the outer cavity. Combined with the design of the upper and lower sides of the baffle 7 being pressed against the top and bottom surfaces of the box 1, the entire baffle mechanism can achieve a certain degree of sealing. At this time, the corresponding sides of the two sliding plates 16 are pressed against the corresponding side surfaces in the groove.

[0034] A long groove is provided on the rotating shaft, and a lead screw 18 is rotatably mounted between the upper and lower sides of the long groove. A lead screw slider is provided around the lead screw 18 and slides with the long groove. The fixed part includes several sets of support plates 9 evenly and side by side fixed on the two side baffles 7. A gap 1 is provided between two adjacent support plates 9. The outer periphery of the several sets of support plates 9 is semi-circular. The purpose of the semi-circular structure is to facilitate the rotation of the fixed part with the rotating shaft 1 within the housing 1. The movable part 8 includes an intermediate plate 21 mounted on the lead screw slider. An arc plate 20 that cooperates with the semi-circular structure is provided at the free end of the intermediate plate 21. Several sets of support plates 19 parallel to the intermediate plate 21 are evenly arranged on the arc plates 20 on both sides of the intermediate plate 21. The intermediate plate 21 and the adjacent support plates 19 There are gaps 2 between the two adjacent support plates 19 and between the two adjacent support plates 19, which are matched with the support plate 9. The middle plate 21 and the support plate 19 are matched with the gaps 1. When the lead screw 18 rotates, it drives the lead screw slider and the movable part 8 to move. The middle plate 21 and the support plate 19 of the movable part 8 will pass through the corresponding gaps 1, while the support plate 9 of the fixed part will pass through the corresponding gaps 2. Obviously, the arc plate 20 is located on the outer periphery of the semi-circular structure. Initially, the movable part 8 is located below the fixed part. The items to be transferred are first placed on the fixed part, and then the items are disinfected. Then the movable part 8 moves up, passes through the fixed part, and replaces the fixed part to support the items. Then the items are disinfected again. In this way, the place where the items were in contact with the fixed part can also be disinfected.

[0035] After the upper end face of the rotating shaft passes through the upper side of the housing 1, the motor 5 is fixed by the bracket. A round rod is provided at the upper end of the lead screw 18. The round rod passes through the upper end face of the rotating shaft and is set on the output shaft of the motor 5. The motor 5 drives the lead screw 18 to rotate through the round rod, thereby realizing the up and down movement of the movable part 8.

[0036] A gear 6 is installed around the rotating shaft that extends out of the upper side of the box 1. A motor 4 is installed on the upper side of the box 1 via a corresponding bracket. A gear 3 that meshes with the gear 6 is installed on the output shaft of the motor 4. The motor 4 drives the gear 3 to rotate, which in turn drives the gear 6 to rotate, thereby driving the rotating shaft to rotate. Finally, the baffle mechanism and the shelf rotate inside the box 1, realizing the transfer of items from one side to the other, that is, realizing the transfer of items.

[0037] The box 1 is provided with a door interlocking mechanism. The door interlocking mechanism includes a pair of interlocking parts, which are respectively arranged on the vertical sides of the left and right sides of the box 1. In one embodiment, the two interlocking parts are centrally symmetrical, that is, one side interlocking part can coincide with the other side interlocking part after rotating 180 degrees along the center point of the box 1 or through the central axis of the upper and lower sides of the box 1. The interlocking part includes a mounting groove provided on the outer vertical side of the housing 1. An upper sliding groove and a lower sliding groove are respectively provided on the front and rear sides of the mounting groove. The upper sliding groove passes through the front end face of the vertical side of the housing 1, and the lower sliding groove passes through the rear end face of the vertical side of the housing 1. Matching upper sliding rod 11 and lower sliding rod 29 are slidably provided in the upper sliding groove and the lower sliding groove respectively. A circular shaft is provided in the middle of the bottom surface of the mounting groove. The circular shaft is located in the middle between the upper sliding groove and the lower sliding groove. A middle rod 15 is rotatably mounted on the circular shaft. The circular shaft is located in the middle of the middle rod 15. The two ends of the middle rod 15 are movably connected to the inner ends of the upper sliding rod 11 and the lower sliding rod 29, respectively. The outer end of the upper sliding rod 11 is close to the opening and closing point of one side door 2, and the outer end of the lower sliding rod 29 is close to the hinge point of the other side door 2. A torsion spring is provided around the outer side of the round shaft. One end of the torsion spring is fixed to the bottom surface of the mounting groove, and the other end of the torsion spring is fixed to the intermediate rod 15. Under the action of the torsion spring, the outer ends of the upper sliding rod 11 and the lower sliding rod 29 respectively pass through the two end faces of the vertical side of the box body 1. The inner side of door 2 near the hinge is provided with a socket that mates with the outer end of the sliding rod 29. When one side door 2 is opened, under the action of the torsion spring, the outer end of the sliding rod 29 is inserted into the socket of the other side door 2, thereby locking the other side door 2. That is, when one side door 2 is opened, the other side door 2 cannot be opened.

[0038] Both sides of the round shaft are provided with waist holes 24 on the middle rods 15. The inner ends of the upper sliding rod 11 and the lower sliding rod 29 are provided with sliding rods that cooperate with the waist holes 24 through the bracket plate. The sliding rods are movably set in the waist holes 24. When one side door 2 is closed, it will squeeze the corresponding upper sliding rod 11 to slide into the upper sliding groove, thereby pushing the middle rod 15 to rotate, so that the lower sliding rod 29 slides into the lower sliding groove and is retracted into the lower sliding groove, thereby disengaging from the insertion hole of the other side door 2. That is, when this side door 2 is closed, the other side door 2 can be opened.

[0039] The housing 1 is equipped with a shaft interlocking mechanism, which includes a large gear 26 and a small gear that are respectively connected to and mesh with each other via rotating shaft 2 and rotating shaft 3 14 on the bottom surface of the mounting groove. The small gear is located in the middle of rotating shaft 3 14, and a limit block 27 is provided on the outer side near the outer end of rotating shaft 3 14. The front part of rotating shaft 3 14 and the limit block 27 constitute a limit rod. An L-shaped rod 12 is provided on the inner end of the upper sliding rod 11, and a rack 25 that meshes with the large gear 26 is provided near the front end of the L-shaped rod 12. When the door 2 is closed, the upper sliding rod 11 is pushed to move, thereby causing the rack 25 to drive the large gear 26 to rotate. During the entire process from the rack 25 meshing with the large gear 26 to passing through the large gear 26, the large gear 26 drives the small gear to rotate, and the limit block 27 rotates at least 45 degrees and no more than 90 degrees.

[0040] The lower end of the rotating shaft passes through the lower side of the housing 1 and the outer periphery is provided with gear 3 22. Both sides of gear 3 22 are provided with symmetrical locking mechanisms. The locking mechanism includes a T-shaped slide groove on the lower side of the housing 1, with the corresponding end of the T-shaped slide groove penetrating the vertical side of the housing 1. A matching T-shaped slide plate 31 is slidably arranged in the T-shaped slide groove. One end of the T-shaped slide plate 31 is provided with a gear 4 30 that cooperates with gear 3 22 and restricts the rotation of gear 3 22. The other end of the T-shaped slide plate 31 is provided with a vertical plate 10 extending along the vertical side of the housing 1. A through groove 28 that cooperates with the limiting rod is provided on the vertical plate 10. Several springs 23 are provided between the vertical plate 10 and the vertical side of the box 1. The springs 23 cause the gear 30 to mesh with the gear 22, and the limiting rod just passes through the through groove 28. At this time, the limiting block 27 can rotate along the outer side of the vertical plate 10 with the rotation of the shaft 14. When the limiting rod rotates to a certain angle with the through groove 28, the limiting block 27 limits the vertical plate 10, so that the T-shaped slide plate 31 cannot slide outward, thereby keeping the gear 30 and the gear 22 meshed, and thus limiting the gear 30 to the gear 22, and finally preventing the shaft from rotating. Preferably, the angle is 45 degrees or 90 degrees. A cam 13 is provided at the inner end of the upper slide rod 11, and an inclined surface that cooperates with the cam 13 is provided on the corresponding side of the vertical plate 10. When the upper slide rod 11 moves under the action of the closing door 2, firstly, the rack 25 will mesh and rotate with the large gear 26, thereby driving the large gear 26 to rotate, which in turn drives the limit rod to rotate. After the rack 25 passes the large gear 26 (i.e., disengages from the large gear 26), the limit rod just rotates to coincide with the through groove, that is, the limit rod can slide along the through groove. Then, as the upper slide rod 11 continues to move, the vertical plate 10 will be pushed outward by the action of the cam 13 and the inclined surface (therefore...). The distance between the rack and cam 13 should be designed reasonably so that it slides outward through the cooperation of the T-shaped slider and the T-shaped groove, thereby releasing the meshing of gear 4 30 and gear 3 22, thereby releasing the limit on gear 3 22, and finally releasing the limit on the rotating shaft 1. Then the rotating shaft 1 can rotate under the drive of motor 2 4. In addition, during the process of the vertical plate 10 sliding outward, the limit rod will slide into the through groove. It should be noted that only after both doors 2 are completely closed and the locking mechanisms on both sides are completely released can motor 2 4 smoothly drive the baffle mechanism to rotate and realize the transfer of items. When one side door 2 is opened, the upper sliding rod 11 slides outward under the action of the torsion spring. At this time, the cam 13 slowly disengages from the vertical plate 10. The vertical plate 10 is reset under the action of the spring 23. During the reset process, the limiting rod passes through the through groove. Then the rack 25 meshes with the large gear 26 again, causing the limiting rod to reverse 45 degrees or 90 degrees. That is, the limiting block 27 rotates along the outer side of the vertical plate 10 to have an angle of 45 degrees or 90 degrees with the through groove, thereby achieving the limiting of the vertical plate 10.

[0041] A downward-extending cylindrical rod is provided on the T-shaped sliding plate 31. Gear 4 30 is rotatably mounted on the periphery of the cylindrical rod through a central circular hole. A V-shaped notch 33 is provided on the outer side of the cylindrical rod inside the circular hole. A triangular stop 32 extending into the V-shaped notch 33 is provided on the wall of the circular hole. Mounting holes are provided on both side walls of the V-shaped notch 33, and spring 2 34 is installed in the mounting holes. The free end of spring 2 34 is fixed to the corresponding side of the triangular stop 32. If gear 4 30 is completely fixed, when gear 4 30 slides close to gear 3 22, there may be a situation where the teeth cannot mesh. Therefore, this structure is designed so that gear 4 Gear 30 has a certain rotational margin. When the triangular stop 32 is against one side of the V-shaped notch 33, gear 4 30 will no longer rotate, thus allowing gear 4 30 to mesh smoothly with gear 3 22 and achieve the limit of gear 3 22. It should be noted that the locking mechanism is a mechanism to prevent misoperation. When misoperation is found, it should be corrected in time, and the inside of the transfer window should be disinfected again. In one example of misoperation, after the items were placed in, the button of motor 2 4 was accidentally operated without closing the window for disinfection. At this time, the baffle mechanism will be locked by the locking mechanism and may rotate a certain angle. Although the angle is small, further disinfection is required to prevent contamination.

[0042] In one specific embodiment, the housing 1 is also provided with an outer shell, which is used to protect the motor and gear structure. The lower side of the outer shell is provided with fixing strips for easy installation and fixing. After door 2 is closed, it can be secured using existing structures. The simplest method is to install a plate with threaded holes on the corresponding side of the housing 1 and a locking hole on the free side of door 2. The closed door 2 can then be secured using bolts installed in the threaded holes and locking holes. Alternatively, a latch structure similar to those used on interior doors, bathroom doors, and balcony doors can be used, featuring a spring return mechanism. When the door is closed, it automatically retracts under pressure from the door frame, and after closing, the spring ejects and locks into the door frame latch plate, achieving "automatic closure." In specific implementation, a latch is installed on the free side of door 2, and an auxiliary block with a door frame latch plate is installed on the corresponding side of housing 1. This is existing technology and easily implemented by those skilled in the art, and will not be described in detail. Furthermore, disinfection and sterilization facilities are installed in both the inner and outer cavities of the housing. This is existing technology and will not be described in detail.

[0043] Working process: When transferring items, first open the outer door 2, then place the item on the fixed part, close door 2, and then start disinfecting the item. Then, by switching on the set control motor 5, the movable part 8 moves upward, passes through the fixed part, and replaces the fixed part to support the item. Then, the item is disinfected again. Then, by switching on the set control motor 4, the baffle mechanism rotates, transferring the item from the outer cavity of the box 1 to the inner cavity. Then, it can be disinfected again in the inner cavity. Finally, open the inner door 2, take out the item, and realize the transfer of items.

[0044] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A material transfer window for use in a pharmaceutical clean area, characterized in that, Includes a box (1) with two ends connected, and each end of the box (1) is hinged with a matching door (2). The door (2) has a double-layered viewing window that can see through. The two doors (2) are centrally symmetrical. The box (1) has a baffle mechanism that can rotate inside the box (1) in the middle. The baffle mechanism is equipped with a shelf. The baffle mechanism includes a rotating shaft 1 disposed between the top and bottom surfaces inside the housing (1). A pair of baffles (7) are disposed on the rotating shaft 1 and are symmetrically distributed on both sides of the rotating shaft 1. The upper and lower sides of the baffles (7) slide against the top and bottom surfaces of the housing (1), respectively. The shelf includes a fixed part and a movable part (8).

2. The material transfer window for pharmaceutical clean areas according to claim 1, characterized in that, The baffle mechanism also includes a limiting structure that cooperates with the baffle (7). The limiting structure includes grooves on the left and right side walls inside the box (1). Sliding grooves are provided on the upper and lower side walls of the grooves on both sides. Sliding sliders are slidably provided in the sliding grooves on both sides. A sliding plate (16) that slidably cooperates with the groove is provided between the two sliding sliders. The upper and lower sides of the sliding plate (16) slide against the upper and lower side walls of the groove respectively, and the outer side of the sliding plate (16) is flush with the inner wall of the box (1). A U-shaped limiting plate (17) that cooperates with the baffle (7) is provided on the outer side of the sliding plate (16) away from the groove. The upper and lower sides of the U-shaped limiting plate (17) slide against the top and bottom surfaces inside the box (1) respectively. One side baffle (7) is perpendicular to the left and right side walls inside the box (1) and is pressed against the rear side of the corresponding side U-shaped limiting plate (17) along the front-back direction of the box (1). The other side baffle (7) is pressed against the front side of the corresponding side U-shaped limiting plate (17) along the front-back direction of the box (1).

3. The material transfer window for pharmaceutical clean areas according to claim 1, characterized in that, A long groove is provided on the rotating shaft, and a lead screw (18) is rotatably arranged between the upper and lower sides of the long groove. A lead screw slider is provided around the lead screw (18) and slides with the long groove. The fixed part includes several sets of support plates (9) evenly arranged and fixed on the two side baffles (7). A gap is provided between two adjacent support plates (9). The periphery of the several sets of support plates (9) is semi-circular. The movable part (8) includes an intermediate plate (21) provided on the lead screw slider. The free end of the intermediate plate (21) is provided with an arc plate (20) that cooperates with the semi-circular structure. Several sets of support plates (29) parallel to the intermediate plate (21) are evenly provided on the arc plates (20) on both sides of the intermediate plate (21). There are gaps (2) that cooperate with the support plate (9) between the intermediate plate (21) and the adjacent support plate (29) and between two adjacent support plates (29). The intermediate plate (21) and the support plate (29) both cooperate with the gaps (1).

4. The material transfer window for pharmaceutical clean areas according to claim 3, characterized in that, The upper end face of the rotating shaft passes through the upper side of the housing (1) and is fixed to the motor (5) by a bracket. The upper end of the lead screw (18) is provided with a round rod, which moves through the upper end face of the rotating shaft and is set on the output shaft of the motor (5).

5. The material transfer window for pharmaceutical clean areas according to claim 1, characterized in that, A gear 1 (6) is provided around the rotating shaft after it passes through the upper side of the box (1). A motor 2 (4) is provided on the upper side of the box (1) through a corresponding bracket. A gear 2 (3) that meshes with the gear 1 (6) is provided on the output shaft of the motor 2 (4).

6. The material transfer window for pharmaceutical clean areas according to claim 1, characterized in that, The box (1) is provided with a door interlock mechanism, which includes a pair of interlocking parts, and the pair of interlocking parts are respectively provided on the vertical sides of the left and right sides of the box (1). The interlocking part includes a mounting groove provided on the vertical side of the outer periphery of the housing (1). An upper sliding groove and a lower sliding groove are respectively provided on the front and rear sides of the mounting groove. The upper sliding groove passes through the front end face of the vertical side of the housing (1), and the lower sliding groove passes through the rear end face of the vertical side of the housing (1). Matching upper sliding rods (11) and lower sliding rods (29) are slidably provided in the upper sliding groove and the lower sliding groove, respectively. A circular shaft is provided in the middle of the bottom surface of the mounting groove. A middle rod (15) is rotatably mounted on the circular shaft. The two ends of the middle rod (15) are movably connected to the inner ends of the upper sliding rod (11) and the lower sliding rod (29), respectively. The outer end of the upper sliding rod (11) is close to the opening and closing point of one side door (2), and the outer end of the lower sliding rod (29) is close to the hinge point of the other side door (2). A torsion spring is provided around the outer periphery of the circular shaft. One end of the torsion spring is fixed to the bottom surface of the mounting groove, and the other end of the torsion spring is fixed to the intermediate rod (15). The door (2) has an insertion hole on its inner side near the hinge that mates with the outer end of the sliding rod (29).

7. The material transfer window for pharmaceutical clean areas according to claim 6, characterized in that, Both sides of the circular shaft are provided with waist holes (24) on the intermediate rods (15). The inner ends of the upper slide rod (11) and the lower slide rod (29) are provided with slide rods that cooperate with the waist holes (24) through the bracket plate. The slide rods are movably disposed in the waist holes (24).

8. The material transfer window for pharmaceutical clean areas according to claim 6, characterized in that, The housing (1) is provided with a shaft interlocking mechanism. The shaft interlocking mechanism includes a large gear (26) and a small gear that are respectively connected to the bottom surface of the mounting groove via a second rotating shaft and a third rotating shaft (14) and mesh with each other. A limit block (27) is provided on the outer side of the third rotating shaft (14) near the outer end. The front part of the third rotating shaft (14) and the limit block (27) constitute a limit rod. An L-shaped rod (12) is provided on the inner end of the upper sliding rod (11). A rack (25) that meshes with the large gear (26) is provided near the front end of the L-shaped rod (12).

9. The material transfer window for pharmaceutical clean areas according to claim 8, characterized in that, The lower end of the first rotating shaft passes through the lower side of the box (1) and the outer side is provided with a gear three (22). Both sides of the gear three (22) are provided with a symmetrical locking mechanism. The locking mechanism includes a T-shaped groove on the lower side of the housing (1), with the corresponding end of the T-shaped groove penetrating the vertical side of the housing (1). A matching T-shaped slide plate (31) is slidably disposed in the T-shaped groove. One end of the T-shaped slide plate (31) is provided with a gear four (30) that cooperates with the gear three (22) and restricts the rotation of the gear three (22). The other end of the T-shaped slide plate (31) is provided with a vertical plate (10) extending along the vertical side of the housing (1). A through groove (28) that cooperates with the limiting rod is provided on the vertical plate (10). A plurality of springs (23) are provided between the vertical plate (10) and the vertical side of the box (1). The springs (23) cause the gear (30) to mesh with the gear (22), and the limiting rod just passes through the through groove (28). A cam (13) is provided at the inner end of the upper slide rod (11), and an inclined surface that cooperates with the cam (13) is provided on the corresponding side of the vertical plate (10).

10. The material transfer window for pharmaceutical clean areas according to claim 9, characterized in that, The T-shaped slide plate (31) is provided with a downwardly extending cylindrical rod. The gear four (30) is rotatably disposed around the cylindrical rod through a central circular hole. A V-shaped notch (33) is provided on the outer side of the cylindrical rod inside the circular hole. A triangular stop (32) is provided on the wall of the circular hole and extends into the V-shaped notch (33). Mounting holes are provided on both side walls of the V-shaped notch (33). A spring two (34) is provided in the mounting holes. The free end of the spring two (34) is fixed on the corresponding side of the triangular stop (32).

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