Airtight self-circulation sterilization transfer cabin

Abstract

The utility model relates to an airtight type self-circulation sterilization transfer cabin, and relates to the technical field of sterilization transfer cabins, the airtight type self-circulation sterilization transfer cabin comprises a cabin body, two sealing doors rotatably arranged on the cabin body and a control module arranged on the cabin body, the two opposite side walls of the cabin body are in an opening shape; the two sealing doors movably block the two open ends of the cabin body respectively, electromagnetic locks are arranged between the sealing doors and the cabin body, the electromagnetic locks are electrically connected with the control module, locking discs are rotationally arranged on the sealing doors, the locking discs are semicircular, fixing blocks are arranged on the cabin body, and the fixing blocks are arranged on the cabin body. The number of the fixing blocks is two, the two fixing blocks correspond to the two locking discs in a one-to-one mode, containing grooves are formed in the fixing blocks, and the locking discs are movably located in the containing grooves. Interlocking of the two sealing doors is achieved, the sealing doors on the two sides are prevented from being opened at the same time, the risk of cross contamination of a clean area and a non-clean area is reduced, and meanwhile the opening and closing reliability of the sealing doors is improved.

Description

Technical Field

[0001] This application relates to the technical field of sterilization transfer chambers, and in particular to an airtight self-circulating sterilization transfer chamber. Background Technology

[0002] Sterilization transfer chambers are mainly used for transferring items between clean and non-clean areas to reduce the number of times the clean area is opened and to perform rapid and effective sterilization of items, thereby reducing the risk of contamination in the clean area.

[0003] A typical sterilization transfer chamber consists of a chamber embedded in a wall, with open sides on opposite sides. A sealing door, hinged to the chamber, seals the opening. The chamber is equipped with a proximity switch to detect the sealing door's position, an electromagnetic lock to lock the sealing door, and a control module. Both the proximity switch and the electromagnetic lock are electrically connected to the control module. When the proximity switch detects the sealing door is closed, the control module energizes the electromagnetic lock, locking the sealing door. When it is necessary to open one side of the sealing door, the technician manipulates the control module to de-energize the corresponding electromagnetic lock. Simultaneously, the control module keeps the electromagnetic lock corresponding to the other side's sealing door energized, making it difficult to open the other side's sealing door, thus achieving a safety interlock.

[0004] Regarding the aforementioned technologies, when the equipment circuit malfunctions or loses power, both electromagnetic locks are de-energized. At this time, both sealed doors can be opened simultaneously, which can easily allow microorganisms in the air of the non-clean area to pass through the chamber and enter the clean area, increasing the risk of contamination of the clean area. Therefore, improvements are needed. Utility Model Content

[0005] To improve the reliability of the opening and closing of the sealed door and reduce the risk of contamination in the clean area, this application provides an airtight self-circulating sterilization transfer chamber.

[0006] The airtight self-circulating sterilization transfer chamber provided in this application adopts the following technical solution:

[0007] An airtight self-circulating sterilization transfer chamber includes a chamber body, two sealing doors rotatably mounted on the chamber body, and a control module mounted on the chamber body. The opposite side walls of the chamber body are open, and the two sealing doors movably seal the two open ends of the chamber body. An electromagnetic lock is provided between the sealing doors and the chamber body, and the electromagnetic lock is electrically connected to the control module. A locking disc, semi-circular in shape, is rotatably mounted on each sealing door. Two fixing blocks are provided on the chamber body, each corresponding to one of the two locking discs. A receiving groove is formed on each fixing block, and the locking disc is movably positioned within the receiving groove. The side wall of the locking disc away from the sealing door is inclined, and the inclined side of the locking disc movably abuts against the inner side wall of the receiving groove. The chamber body is provided with an interlocking assembly for interlocking the two sealing doors and a sealing assembly for sealing the sealing doors.

[0008] The interlocking assembly includes an interlocking block slidably disposed within the fixed block. One end of the interlocking block protrudes movably from the side wall of the fixed block. An interlocking groove is provided on the side wall of the sealing door. The protruding end of the interlocking block is movably located within the interlocking groove, and the interlocking block is movably abutted against the inner side wall of the interlocking groove. A synchronizing element is provided on the cabin to make the locking disc move synchronously with the interlocking block on the other side.

[0009] By adopting the above technical solution, when it is necessary to open the sealed door on one side, the technician first unlocks the electromagnetic lock of the corresponding sealed door through the control module, while the electromagnetic lock on the other side remains energized, so that the sealed door on the other side is locked, thus realizing the interlocking of the two sealed doors.

[0010] Then, the technician rotates the locking disc to separate the inclined side of the locking disc from the fixed block, thereby unlocking the sealed door. At the same time, the synchronizing element drives the interlocking block on the other side to slide closer to the sealed door, so that the interlocking block inserts into the interlocking groove and abuts against the inner wall of the interlocking groove, making it difficult for the sealed door on the other side to rotate. In the event of a malfunction or power failure of the electromagnetic lock, the other side of the seal can also be locked, achieving interlocking of the two sealed doors and preventing the two sealed doors from opening at the same time. This reduces the risk of cross-contamination between clean and non-clean areas and improves the reliability of the opening and closing of the sealed door.

[0011] When it is necessary to close one side of the sealed door, the technician rotates the sealed door to block the opening end of the chamber. Then, the technician rotates the locking disc to move it into the receiving groove and presses the inclined side of the locking disc against the fixed block to lock the sealed door. At the same time, the control module detects that the sealed door is in the closed state and energizes the corresponding electromagnetic lock to further lock the sealed door. Meanwhile, the sealing assembly seals the sealed door and the opening end of the chamber, improving the sealing performance of the chamber and reducing the risk of contamination in the clean area.

[0012] At the same time, the synchronizing component drives the interlocking block on the other side to slide away from the sealed door, so that the interlocking block separates from the inner wall of the interlocking groove, making it less likely to obstruct the opening of the sealed door on the other side.

[0013] Optionally, the synchronizing element includes a sliding block elastically slidably disposed within the receiving groove, an interlocking block elastically slidably disposed within the fixed block, the sliding block being movably abutting against the outer peripheral wall of the locking disc, a linkage block being provided on the side wall of the sliding block near the other side of the sealing door, the side wall of the linkage block away from the sliding block being inclined, the side wall of the interlocking block away from the interlocking groove also being inclined, and a linkage rod being slidably disposed through the cabin body, two linkage rods being provided, the two linkage rods corresponding one-to-one with the two linkage blocks, one end of the linkage rod being movably abutting against the inclined side of the linkage block, and the other end of the linkage rod being movably abutting against the inclined side of the other side of the interlocking block.

[0014] By adopting the above technical solution, when the technician rotates the locking disc to separate it from the fixed block, the arc end of the locking disc rotates to the side away from the fixed block. At this time, the sliding block slides towards the locking disc under the elastic force, and the sliding block is always pressed against the outer peripheral wall of the locking disc. This causes the inclined side of the linkage block to press against one end of the linkage rod, and drives the linkage rod to slide away from the sliding block. This causes the other end of the linkage rod to press against the inclined side of the interlocking block on the other side, and drives the interlocking block to slide towards the sealing door, thus achieving interlocking of the two sealing doors. At this time, when the technician rotates the locking disc on the other side, the corresponding sealing door is still not easy to rotate.

[0015] When the technician rotates the locking disc into the receiving groove, the arc end of the locking disc rotates into the receiving groove, so that the arc end of the locking disc abuts against the linkage block, and drives the sliding block to slide away from the locking disc, so that the linkage rod has space to slide closer to the sliding block. At this time, the interlocking block on the other side slides away from the sealing door under the elastic force and separates from the inner wall of the interlocking groove, making it less likely to obstruct the opening of the sealing door on the other side.

[0016] With the above solution, technicians can unlock one side of the sealed door by rotating the locking disc, while simultaneously interlocking with the other side of the sealed door, making it convenient for technicians to operate.

[0017] Optionally, the end of the interlock block away from the sealing door is red, and the other end of the interlock block is green. The interlock block is provided with a toggle block located in the middle of the interlock block. The toggle block protrudes from the side wall of the fixed block. The fixed block has an indicator hole for the toggle block to slide. The toggle block is movably pressed against the inner side wall of the indicator hole.

[0018] By adopting the above technical solution, when both sealing doors are closed, the interlocking blocks on both sides are separated from the inner wall of the corresponding interlocking groove, and at the same time, the actuating block abuts against the inner wall of the indicator hole away from the sealing door. At this time, the technician can observe the green end of the interlocking block through the indicator hole, which means that both sealing doors are locked.

[0019] When the technician opens one side of the sealed door, the interlocking block on the other side slides towards the corresponding sealed door, and the actuating block abuts against the inner wall of the sealed door near the indicator hole. At this time, the technician can observe the red end of the interlocking block through the indicator hole, which indicates that the sealed door on the other side is in the unlocked state, making it easier for the technician to judge the locked state of the sealed door on the other side.

[0020] When it is necessary to open both sealed doors for maintenance, the technician first opens one sealed door. Then, the technician moves the actuating block on the other side of the interlock block, causing the actuating block to separate the interlock block from the inner wall of the interlock groove. This makes it easier for the interlock block to obstruct the rotation of the other sealed door. At the same time, the technician rotates the locking disc to unlock the other sealed door, thus enabling the other sealed door to be opened.

[0021] Optionally, the sealing assembly includes an inflatable sealing strip and a squeeze sealing strip disposed on the inner side of the sealing door. Both the inflatable sealing strip and the squeeze sealing strip are hollow, and the inflatable sealing strip and the squeeze sealing strip are connected. The inflatable sealing strip is movably pressed against the inner wall of the cabin, and the squeeze sealing strip is movably pressed against the outer wall of the cabin.

[0022] By adopting the above technical solution, when the sealing door needs to be closed, the technician rotates the sealing door to block the opening end of the cabin. At this time, the squeeze sealing strip is in contact with the outer wall of the cabin, and the inflatable sealing strip is in contact with the inner wall of the cabin. Then, the technician rotates the locking disc to make the inclined side of the locking disc abut against the fixed block, and to make the squeeze sealing strip abut against the outer wall of the cabin, thus sealing the cabin. At the same time, the squeeze sealing strip is squeezed, causing the gas inside the squeeze sealing strip to flow into the inflatable sealing strip, which expands and abuts against the inner wall of the cabin, further sealing the cabin and improving the sealing effect. At the same time, it saves power source, and the inflation of the inflatable sealing strip is achieved mechanically, improving the stability of locking / unlocking.

[0023] Optionally, the top and inner walls of the chamber are equipped with multiple ultraviolet lamps, and the outer wall of the chamber is equipped with a vaporized hydrogen peroxide generator. The vaporized hydrogen peroxide generator is connected to the chamber, and both the ultraviolet lamps and the vaporized hydrogen peroxide generator are electrically connected to the control module.

[0024] By adopting the above technical solution, when items need to be transferred to the clean area, technicians open the sealed door on the non-clean area side and place the items to be transferred into the chamber. Then, the technicians close the sealed door on the non-clean area side and power on the ultraviolet lamps and vaporized hydrogen peroxide generator through the control module. The items inside the chamber are then sterilized using ultraviolet light and vaporized hydrogen peroxide gas. At the same time, depending on the situation, the technicians can also choose to power on either the ultraviolet lamps or the vaporized hydrogen peroxide generator through the control module, thereby achieving sterilization using ultraviolet light alone or sterilization using hydrogen peroxide alone.

[0025] Optionally, the inner wall of the cabin is provided with a plurality of "V"-shaped lamp covers, each of which corresponds to a plurality of ultraviolet lamps, and the ultraviolet lamps are embedded in the lamp covers.

[0026] By adopting the above technical solution, when using ultraviolet lamps to sterilize items inside the chamber, the "V"-shaped lamp cover ensures that the ultraviolet rays emitted by the ultraviolet lamps are evenly distributed inside the chamber, reducing the blind spots of ultraviolet radiation and improving the sterilization effect.

[0027] Optionally, the cabin is also equipped with a partition cover, and the cabin and the vaporized hydrogen peroxide generator are both located inside the partition cover. The partition cover has an inspection port on its side wall facing the non-clean area, and a sealing plate can be detachably installed on the partition cover to seal the inspection port.

[0028] By adopting the above technical solution, during installation, technicians fix the partition cover to the wall, which facilitates installation. At the same time, the partition cover protects the cabin, the vaporized hydrogen peroxide generator, and the electrical wiring. During maintenance, technicians remove the sealing plate, which allows them to access the non-clean area through the inspection port. At this time, the partition cover is not connected to the clean area, reducing the risk of contamination of the clean area.

[0029] Optionally, the sealed door is provided with an observation hole, and a glass observation window is provided at the junction of the sealed door and the observation hole. The glass observation window is provided with an ultraviolet protection film to block ultraviolet rays.

[0030] By adopting the above technical solution, the observation holes and glass observation windows facilitate technicians to monitor the status of items inside the chamber. The ultraviolet protection film effectively blocks ultraviolet rays during sterilization, reducing the risk of ultraviolet damage to the eyes and skin of technicians.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. Through the configuration of the enclosure, sealing door, locking disc, fixed block, interlocking block, sliding block, linkage block, and linkage rod, when the electromagnetic lock malfunctions or loses power, technicians can lock the sealing door by rotating the locking disc, causing its tilt to abut against the fixed block. At this time, both interlocking blocks are separated from their corresponding interlocking slots, making it less likely to obstruct the opening of the sealing door. When it is necessary to open one side of the sealing door, technicians rotate the locking disc, causing it to separate from the fixed block. At this time, the sliding block slides under the elastic force, keeping it abutting against the locking disc. This causes the linkage block to abut against the locking disc and drive the linkage rod to slide. The linkage rod then abuts against the interlocking block and drives the interlocking block to slide closer to the sealing door, allowing the interlocking block to insert into the interlocking slot. This prevents the other side of the sealing door from rotating, thus achieving interlocking of the two sealing doors. This avoids opening both sealing doors simultaneously, thereby reducing the risk of cross-contamination between clean and non-clean areas and improving the reliability of the sealing door opening and closing.

[0033] 2. With the set toggle block and interlock block, when both sealed doors are closed, the interlock blocks on both sides are separated from the corresponding interlock slots. At the same time, the toggle block abuts against the inner wall of the indicator hole away from the sealed door. At this time, the technician can observe the green end of the interlock block through the indicator hole, which indicates that both sealed doors are locked. When the technician opens one side of the sealed door, the interlock block on the other side slides towards the corresponding sealed door and abuts against the inner wall of the indicator hole near the sealed door. At this time, the technician can observe the red end of the interlock block through the indicator hole, which indicates that the sealed door on the other side is unlocked, making it easier for the technician to judge the status of the sealed door on the other side.

[0034] 3. Using the inflatable and compression sealing strips, when the sealed door needs to be closed, the technician rotates the door to make the compression sealing strip fit against the outer wall of the cabin, and simultaneously make the inflatable sealing strip fit against the inner wall of the cabin. Then, the technician rotates the locking disc to make the inclined side of the locking disc abut against the fixing block, and to make the compression sealing strip abut against the outer wall of the cabin, thus sealing the cabin. Simultaneously, the compression sealing strip is compressed, causing the gas inside to flow into the inflatable sealing strip, causing the inflatable sealing strip to expand and abut against the inner wall of the cabin, further sealing the cabin and improving the sealing effect. This also saves power, as the mechanical inflation of the sealing strip improves the stability of locking / unlocking. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0036] Figure 2 This is a schematic diagram of the connection structure of the sealing door, the inflatable sealing strip, and the extrusion sealing strip;

[0037] Figure 3 This is a schematic diagram of the connection structure between the vaporized hydrogen peroxide generator and the cabin.

[0038] Figure 4 This is a schematic diagram of the connection structure of the locking plate, fixing block and cabin;

[0039] Figure 5 This is a schematic diagram of the connection structure between the interlocking block and the fixed block.

[0040] Reference numerals: 1. Cabin; 11. Electromagnetic lock; 12. Ultraviolet lamp; 13. Lamp cover; 14. Vaporized hydrogen peroxide generator; 15. Drain pipe; 2. Sealed door; 21. Glass observation window; 22. Observation hole; 23. Ultraviolet protective film; 3. Locking disc; 31. Handle; 4. Fixing block; 41. Receiving groove; 5. Interlock assembly; 51. Interlock block; 52. Interlock groove; 53. Synchronizer; 531. Sliding block; 532. Linkage block; 533. Linkage rod; 54. Actuating block; 55. Indicator hole; 6. Sealing assembly; 61. Inflatable sealing strip; 62. Compressed sealing strip; 7. Partition cover; 71. Sealing plate; 72. Control module; 8. Ventilation assembly; 81. Intake pump; 82. Exhaust pump; 83. High-efficiency filter. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0042] This application discloses an airtight self-circulating sterilization transfer chamber. (Refer to...) Figure 1 and Figure 2An airtight self-circulating sterilization transfer chamber includes a partition cover 7 embedded and fixed in the wall between a clean area and a non-clean area. A chamber body 1 is fixed inside the partition cover 7. The chamber body 1 has two openings on opposite side walls parallel to the wall. Two sealing doors 2 are rotatably connected to the chamber body 1. The rotation axis of the sealing doors 2 is parallel to the height direction of the chamber body 1. The two sealing doors 2 respectively seal the two opening ends of the chamber body 1. An observation hole 22 is provided on the sealing door 2. A glass observation window 21 is provided at the sealing door 2 and the observation hole 22. An ultraviolet protection film 23 is provided on the glass observation window 21 to block ultraviolet rays. In this application, the inner surface of the chamber body 1 is made of SUS 316L stainless steel mirror polished plate with a large rounded corner design to eliminate dead corners for cleaning and disinfection. The inner surface of the sealing door 2 is made of SUS 316L stainless steel mirror plate, and the outer surface is made of SUS304 stainless steel brushed plate.

[0043] In order to sterilize the items to be transferred inside cabin 1, refer to Figure 2 and Figure 3 Two “V”-shaped lamp covers 13 are fixed on the top wall and the two opposite inner side walls of the chamber 1. Ultraviolet lamps 12 are fixed inside the lamp covers 13 to reduce the blind spots of ultraviolet radiation. A vaporized hydrogen peroxide generator 14 is fixed on the outer side wall of the chamber 1 and is connected to the inside of the chamber 1. A drain pipe 15 is fixed on the bottom wall of the chamber 1 to drain the liquid generated during hydrogen peroxide sterilization.

[0044] To ventilate the interior of compartment 1 and reduce the risk of cross-contamination, a ventilation assembly 8 is installed on the outer wall of compartment 1, as shown in the reference. Figure 3 The ventilation assembly 8 includes an intake pump 81 and an exhaust pump 82 fixed to the outer wall of the chamber 1. The input end of the intake pump 81 and the output end of the exhaust pump 82 are both connected to the clean area. The output end of the intake pump 81 is connected to the top of the chamber 1, and the input end of the exhaust pump 82 is connected to the bottom of the chamber 1. Both the output ends of the intake pump 81 and the exhaust pump 82 are fixed with a high-efficiency filter 83 with a filtration accuracy of 0.22μm. The vaporized hydrogen peroxide generator 14, the intake pump 81, the exhaust pump 82, the high-efficiency filter 83 and all are located inside the partition cover 7. The partition cover 7 has an inspection port on its side wall facing the non-clean area. A sealing plate 71 for sealing the inspection port is detachably fixed on the partition cover 7. A control module 72 is provided on the partition cover 7. The intake pump 81, the exhaust pump 82, the ultraviolet lamp 12 and the vaporized hydrogen peroxide generator 14 are all electrically connected to the control module 72.

[0045] This application embodiment has two sterilization methods: ultraviolet irradiation sterilization and hydrogen peroxide gas sterilization. These methods can be used individually or in combination. The control module 72 can preset process parameters such as the irradiation time of the ultraviolet lamp 12, the hydrogen peroxide gas introduction time, and the ventilation time. The ventilation volume is ≥200m³ / h, the ultraviolet lamp power is ≥23W, the ultraviolet intensity is ≥100μW / cm², and the ultraviolet irradiation disinfection time of the equipment is ≥30 minutes.

[0046] When items need to be transferred to the clean area, the technician opens the sealed door 2 on the non-clean area side and places the items to be transferred into the chamber 1. Then, the technician closes the sealed door 2 on the non-clean area side to seal the opening of the chamber 1. The technician then powers on the ultraviolet lamp 12 and the vaporized hydrogen peroxide generator 14 through the control module 72, and sterilizes the items in the chamber 1 using ultraviolet light and vaporized hydrogen peroxide gas. The technician can also choose to power on either the ultraviolet lamp 12 or the vaporized hydrogen peroxide generator 14 through the control module 72, depending on the situation, to achieve sterilization using ultraviolet light alone or sterilization using hydrogen peroxide alone.

[0047] Then, the control module 72 drives the intake pump 81 and the exhaust pump 82 to work, so that the gas in the clean area enters the chamber 1 from the top of the chamber 1 through the high-efficiency filter 83, and is discharged into the clean area from the bottom of the chamber 1 through the high-efficiency filter 83, ensuring that the pressure difference in the clean area is not affected. At the same time, it realizes the flow of gas in the chamber 1, improves the diffusion efficiency of hydrogen peroxide gas, improves the sterilization efficiency, and realizes the discharge and filtration of contaminated gas in the chamber 1, and realizes the desorption of residual hydrogen peroxide.

[0048] After sterilization is completed, the technicians open the sealed door 2 on one side of the clean area, take out the sterilized items, and then close the sealed door 2.

[0049] Furthermore, in order to lock the sealing door 2, refer to Figure 2 , Figure 3 and Figure 4 An electromagnetic lock 11 is provided between the sealed door 2 and the cabin 1. The electromagnetic lock 11 is electrically connected to the control module 72. A locking disc 3 is rotatably connected to the sealed door 2. The locking disc 3 is semi-circular. The rotation axis of the locking disc 3 is parallel to the thickness direction of the sealed door 2. A handle 31 is fixed on the fixing block 4 to facilitate the rotation of the locking disc 3 by technicians. Two fixing blocks 4 are fixed on the cabin 1. The two fixing blocks 4 correspond one-to-one with the two locking discs 3. A receiving groove 41 is opened on the fixing block 4. The locking disc 3 is movably located in the receiving groove 41. The side wall of the locking disc 3 away from the sealed door 2 is inclined, and the inclined side of the locking disc 3 is movably pressed against the inner side wall of the receiving groove 41.

[0050] To interlock the two sealed doors 2, an interlock assembly 5 is installed on the cabin 1, as shown in the reference. Figure 3 , Figure 4 and Figure 5 The interlock assembly 5 includes an interlock block 51 that is elastically slidably connected to the fixed block 4. The sliding direction of the interlock block 51 is parallel to the length direction of the cabin 1. One end of the interlock block 51 is movably protruding from the side wall of the fixed block 4. An interlock groove 52 is provided on the side wall of the sealing door 2. The protruding end of the interlock block 51 is movably located in the interlock groove 52, and the interlock block 51 is movably abutted against the inner side wall of the interlock groove 52.

[0051] To enable the locking disc 3 to move synchronously with the interlocking block 51 on the other side, a synchronizing element 53 is provided on the cabin body 1. The synchronizing element 53 includes a sliding block 531 that is elastically slidably connected in the receiving groove 41. The sliding direction of the sliding block 531 is parallel to the sliding direction of the interlocking block 51. The sliding block 531 is movably pressed against the outer peripheral wall of the locking disc 3. A linkage block 532 is fixed on the side wall of the sliding block 531 near the sealing door 2 on the other side. The side wall of the linkage block 532 away from the sliding block 531 is inclined. The side wall of the interlocking block 51 away from the interlocking groove 52 is also inclined. A linkage rod 533 is slidably connected through the cabin body 1. The sliding direction of the linkage rod 533 is parallel to the thickness direction of the cabin body 1. There are two linkage rods 533. The two linkage rods 533 correspond one-to-one with the two linkage blocks 532. One end of the linkage rod 533 is movably pressed against the inclined side of the linkage block 532. The other end of the linkage rod 533 is movably pressed against the inclined side of the interlocking block 51 on the other side.

[0052] When it is necessary to open one side of the sealed door 2, the technician first unlocks the electromagnetic lock 11 of the corresponding sealed door 2 through the control module 72, while the electromagnetic lock 11 on the other side remains energized, so that the sealed door 2 on the other side is locked, thus achieving interlocking of the two sealed doors 2.

[0053] Then, the technician turns handle 31, causing the locking disc 3 to rotate, separating the inclined side of the locking disc 3 from the fixed block 4, and rotating the arc end of the locking disc 3 to the side away from the fixed block 4, thus unlocking the sealed door 2. At this time, the sliding block 531 slides towards the locking disc 3 under the elastic force, and keeps the sliding block 531 pressed against the outer peripheral wall of the locking disc 3, thereby causing the inclined side of the linkage block 532 to press against one end of the linkage rod 533, and causing the linkage rod 533 to slide away from the sliding block 531, so that the linkage rod 532... The other end of 33 abuts against the inclined side of the interlock block 51 on the other side, and drives the interlock block 51 to slide towards the sealing door 2, so that the interlock block 51 is inserted into the interlock groove 52 and abuts against the inner wall of the interlock groove 52, making it difficult for the sealing door 2 on the other side to rotate. When the electromagnetic lock 11 malfunctions or loses power, it can also lock the seal on the other side, realize the interlock of the two sealing doors 2, avoid the two sealing doors 2 from opening at the same time, thereby reducing the risk of cross-contamination between clean area and non-clean area, and improving the reliability of opening and closing of sealing door 2.

[0054] When it is necessary to close one side of the sealing door 2, the technician rotates the sealing door 2 to block the opening end of the cabin 1. Then, the technician rotates the handle 31 to reverse the locking disc 3, causing the locking disc 3 to rotate into the receiving groove 41 and the inclined side of the locking disc 3 to abut against the fixed block 4, thereby locking the sealing door 2. At this time, the arc end of the locking disc abuts against the linkage block 532 and causes the sliding block 531 to slide away from the locking disc 3, so that the linkage rod 533 has space to slide closer to the sliding block 531. At this time, the interlocking block 51 on the other side slides away from the sealing door 2 under the elastic force and separates from the inner wall of the interlocking groove 52, making it less likely to obstruct the opening of the other side of the sealing door 2. At the same time, the control module 72 detects that the sealing door 2 is in the closed state and energizes the corresponding electromagnetic lock 11 to further lock the sealing door 2.

[0055] Technicians can unlock one side of the sealed door 2 by rotating the locking disc 3, while simultaneously interlocking it with the other side of the sealed door 2, making it convenient for technicians to operate.

[0056] Furthermore, to facilitate technicians in determining the locking status of the opposite sealing door 2, refer to Figure 4 and Figure 5 The end of the interlock block 51 away from the sealing door 2 is red, and the other end of the interlock block 51 is green. A toggle block 54 is fixed on the interlock block 51. The toggle block 54 is located in the middle of the interlock block 51 and protrudes from the fixed block 4. The fixed block 4 has an indicator hole 55 for the toggle block 54 to slide. The toggle block 54 is movably pressed against the inner wall of the indicator hole 55.

[0057] When both sealing doors 2 are closed, the interlocking blocks 51 on both sides are separated from the inner wall of the corresponding interlocking groove 52. At the same time, the actuating block 54 and the indicator hole 55 are pressed against the inner wall away from the sealing door 2. At this time, the technician can observe the green end of the interlocking block 51 through the indicator hole 55, which means that both sealing doors 2 are locked.

[0058] When the technician opens one side of the sealing door 2, the interlocking block 51 on the other side slides towards the corresponding sealing door 2, and the actuating block 54 abuts against the inner wall of the indicator hole 55 near the sealing door 2. At this time, the technician can observe the red end of the interlocking block 51 through the indicator hole 55, which means that the sealing door 2 on the other side is in the unlocked state, making it easier for the technician to judge the status of the sealing door 2 on the other side.

[0059] When it is necessary to open the two sealed doors 2 for maintenance, the technician first opens one of the sealed doors 2. Then, the technician moves the actuating block 54 on the interlocking block 51 on the other side, so that the actuating block 54 causes the interlocking block 51 to separate from the inner wall of the interlocking groove 52, so that the interlocking block 51 can not easily obstruct the rotation of the other sealed door 2. At the same time, the technician rotates the locking disc 3 to unlock the other sealed door 2, thus enabling the opening of the other sealed door 2.

[0060] Furthermore, in order to seal the sealing door 2, a sealing assembly 6 is provided on the cabin 1, as shown in the reference. Figure 1 and Figure 2 The sealing assembly 6 includes an inflatable sealing strip 61 and a compression sealing strip 62 disposed inside the sealing door 2. Both the inflatable sealing strip 61 and the compression sealing strip 62 are hollow and connected to each other. The inflatable sealing strip 61 is in contact with the inner wall of the cabin 1, and the compression sealing strip 62 is in contact with the outer wall of the cabin 1.

[0061] When it is necessary to close the sealing door 2, the technician rotates the sealing door 2 to block the opening end of the cabin 1. At this time, the compression sealing strip 62 is in contact with the outer wall of the cabin 1, and the inflatable sealing strip 61 is in contact with the inner wall of the cabin 1. Then, the technician rotates the locking disc 3 to make the inclined side of the locking disc 3 abut against the fixing block 4, and makes the compression sealing strip 62 abut against the outer wall of the cabin 1, thus sealing the cabin 1. At the same time, the compression sealing strip 62 is compressed, causing the gas in the compression sealing strip 62 to flow into the inflatable sealing strip 61, and causing the inflatable sealing strip 61 to expand and abut against the inner wall of the cabin, further sealing the cabin 1 and improving the sealing effect.

[0062] The implementation principle of an airtight self-circulating sterilization transfer chamber according to an embodiment of this application is as follows: When it is necessary to transfer items to the clean area, the technician first unlocks the electromagnetic lock 11 on the non-clean area side through the control module 72. Then, the technician rotates the corresponding handle 31 to rotate the locking disc 3, thereby unlocking the sealed door 2. At this time, the sliding block 531 slides under the elastic action, driving the linkage block 532 to slide, so that the linkage block 532 abuts and drives the linkage rod 533 to slide, and the linkage rod 533 abuts and drives the interlock block 51 on the other side to slide, so that the interlock block 51 is located in the interlock groove 52 and abuts against the inner wall of the interlock groove 52, thereby interlocking the sealed door 2 on the other side. Then, the technician opens the sealed door 2 on the non-clean area side and puts the items to be transferred into the chamber 1.

[0063] Then, the technician closes the sealed door 2 on the non-clean area side to seal the opening of the chamber 1. The technician then turns the handle 31, causing the locking disc 3 to rotate in reverse and into the receiving groove 41. The inclined side of the locking disc 3 abuts against the fixed block 4, locking the sealed door 2. At this time, the arc end of the locking disc abuts against the linkage block 532 and causes the sliding block 531 to slide away from the locking disc 3, giving the linkage rod 533 space to slide closer to the sliding block 531. At this time, the interlocking block 51 on the other side slides away from the sealed door 2 under the elastic force and separates from the inner wall of the interlocking groove 52, making it less likely to obstruct the opening of the sealed door 2 on the other side. At the same time, the control module 72 detects that the sealed door 2 is in the closed state and energizes the corresponding electromagnetic lock 11, further locking the sealed door 2.

[0064] Then, depending on the situation, the technicians can select one of the ultraviolet lamps 12 and the vaporized hydrogen peroxide generator 14 to be powered on or simultaneously via the control module 72, thereby achieving sterilization by using ultraviolet light alone, sterilization by using hydrogen peroxide alone, or a combination of the two sterilization methods.

[0065] Then, the control module 72 drives the intake pump 81 and the exhaust pump 82 to work, so that the gas in the clean area enters the chamber 1 from the top of the chamber 1 through the high-efficiency filter 83, and is discharged into the clean area from the bottom of the chamber 1 through the high-efficiency filter 83, thereby realizing the flow of gas in the chamber 1 and improving the diffusion efficiency of hydrogen peroxide gas.

[0066] After sterilization is completed, the technicians open the sealed door 2 on the clean area side, take out the sterilized items, and close the sealed door 2. The technicians can open and close the sealed door 2 on the clean area side in the same way as they open and close the sealed door 2 on the non-clean area side.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An airtight self-circulation sterilization transfer cabin, comprising a cabin body (1), two sealing doors (2) rotatably arranged on the cabin body (1), and a control module (72) arranged on the cabin body (1), opposite two side walls of the cabin body (1) are in an open shape, two sealing doors (2) respectively movably seal two open ends of the cabin body (1), an electromagnetic lock (11) is arranged between the sealing door (2) and the cabin body (1), the electromagnetic lock (11) is electrically connected with the control module (72), characterized in that: The sealing door (2) is rotatably provided with a locking disc (3), the locking disc (3) is semicircular, the cabin (1) is provided with a fixed block (4), the fixed block (4) is provided with two, the two fixed blocks (4) correspond to the two locking discs (3) one by one, the fixed block (4) is provided with an accommodating groove (41), the locking disc (3) is movably located in the accommodating groove (41), the side wall of the locking disc (3) away from the sealing door (2) is inclined, and the inclined side of the locking disc (3) is movably abutted against the inner side wall of the accommodating groove (41), the cabin (1) is provided with a mutual locking assembly (5) for interlocking the two sealing doors (2) and a sealing assembly (6) for sealing the sealing door (2). ​ The mutual locking assembly (5) comprises a mutual locking block (51) slidably arranged in the fixed block (4), one end of the mutual locking block (51) is movably protruded from the side wall of the fixed block (4), the side wall of the sealing door (2) is provided with a mutual locking groove (52), the protruding end of the mutual locking block (51) is movably located in the mutual locking groove (52), and the mutual locking block (51) is movably abutted against the inner side wall of the mutual locking groove (52), the cabin (1) is provided with a synchronizing part (53) for synchronously moving the locking disc (3) and the other mutual locking block (51).

2. A self-circulating, sterilized transfer pod according to claim 1, wherein: The synchronizing part (53) comprises a sliding block (531) elastically arranged in the accommodating groove (41), the mutual locking block (51) is elastically arranged in the fixed block (4), the sliding block (531) is movably abutted against the outer peripheral wall of the locking disc (3), the sliding block (531) is provided with a linkage block (532) on the side wall close to the other sealing door (2), the side wall of the linkage block (532) away from the sliding block (531) is inclined, the side wall of the mutual locking block (51) away from the mutual locking groove (52) is also inclined, the cabin (1) is slidably provided with a linkage rod (533), the linkage rod (533) is provided with two, the two linkage rods (533) correspond to the two linkage blocks (532) one by one, one end of the linkage rod (533) is movably abutted against the inclined side of the linkage block (532), the other end of the linkage rod (533) is movably abutted against the inclined side of the other mutual locking block (51).

3. A self-circulating, sterilized transfer lock according to claim 2, wherein: The end of the mutual locking block (51) away from the sealing door (2) is red, the other end of the mutual locking block (51) is green, the mutual locking block (51) is provided with a knob (54), the knob (54) is located in the middle of the mutual locking block (51), the knob (54) protrudes from the side wall of the fixed block (4), the fixed block (4) is provided with an indicating hole (55) for the sliding of the knob (54), and the knob (54) is movably abutted against the inner side wall of the indicating hole (55).

4. A self-circulating, sterilized transfer lock according to claim 3, wherein: The sealing assembly (6) comprises an inflatable sealing strip (61) and an extrusion sealing strip (62) arranged inside the sealing door (2), the inflatable sealing strip (61) and the extrusion sealing strip (62) are both hollow, the inflatable sealing strip (61) is communicated with the extrusion sealing strip (62), the inflatable sealing strip (61) is movably abutted against the inner side wall of the cabin (1), and the extrusion sealing strip (62) is movably abutted against the outer side wall of the cabin (1).

5. A self-circulating, sterilized transfer lock according to claim 4, wherein: A plurality of ultraviolet lamp tubes (12) are arranged on the inner top wall and the inner side wall of the cabin (1), a vaporized hydrogen peroxide generator (14) is arranged on the outer side wall of the cabin (1), the vaporized hydrogen peroxide generator (14) is communicated with the cabin (1), and the ultraviolet lamp tubes (12) and the vaporized hydrogen peroxide generator (14) are electrically connected with the control module (72).

6. A self-circulating, sterilized transfer lock according to claim 5, wherein: A plurality of "V"-shaped lamp tube covers (13) are arranged on the inner side wall of the cabin (1), the plurality of lamp tube covers (13) correspond to the plurality of ultraviolet lamp tubes (12) one by one, and the ultraviolet lamp tubes (12) are embedded in the lamp tube covers (13).

7. A self-circulating, sterilized transfer lock according to claim 6, wherein: The cabin (1) is further provided with a partition cover (7), the cabin (1) and the vaporized hydrogen peroxide generator (14) are located in the partition cover (7), an inspection opening is arranged on the side wall of the partition cover (7) facing the non-clean area, and a detachable plugging plate (71) is arranged on the partition cover (7) to plug the inspection opening.

8. A self-circulating, sterilized transfer lock according to claim 7, wherein: An observation hole (22) is arranged on the sealing door (2), a glass observation window (21) is arranged on the sealing door (2) and the observation hole (22), and an ultraviolet protection film (23) for blocking ultraviolet rays is arranged on the glass observation window (21).

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