An isolator having a quick seal transfer door

Abstract

The utility model relates to the technical field of isolator, and disclose a kind of isolator with quick sealing transmission door, including isolator main body, the inside fixed connection of isolator main body has partition wall, the inside of partition wall is equipped with the transmission hole for transmitting article, the surface of partition wall is provided with sealing assembly for sealing transmission hole;The utility model is sealed by bellows contraction, fixed ring and rubber ring form secondary sealing, and sealing ring and positioning groove constitute tertiary sealing, form multiple, progressive sealing structure.This design greatly enhances the overall air tightness of transmission door, can effectively prevent external air and pollutants from invading, reliably maintain the stability of the clean environment inside the isolator, especially suitable for biological pharmaceutical, sterile experiment and other occasions with extremely high cleanliness requirement, and the entire sealing process only needs to close the shielding door and start vacuum pump to be automatically completed, without complex mechanical locking operation.

Description

Technical Field

[0001] This utility model relates to the field of isolators, and more specifically to an isolator with a fast-sealing transfer door. Background Technology

[0002] An isolator is a device that completely isolates an internal space from the external environment through a physical barrier. It is widely used in the pharmaceutical industry (such as aseptic manufacturing and cell therapy), microbiology, life sciences, and research on highly pathogenic pathogens (BSL-3 / 4 laboratories). Its core function is to protect internal products from external environmental contamination and / or to protect operators from hazardous substances within the facility.

[0003] During the use of isolators, the safe and efficient transfer of materials is of paramount importance. This function is primarily achieved through the transfer doors installed on the isolator housing.

[0004] However, existing transfer doors rely solely on the sealing gaskets to create a seal when closed. These gaskets are prone to wear and leakage with use, which operators may not be able to detect in time, thus easily leading to bacteria growth inside the isolator. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an isolator with a fast sealing transfer door to solve the problem that the sealing effect is formed by only relying on the mutual adhesion between the sealing gaskets in the prior art.

[0006] This utility model provides the following technical solution: an isolator with a fast-sealing transfer door, comprising an isolator body, a partition wall fixedly connected inside the isolator body, a transfer hole for transferring items being opened inside the partition wall, and a sealing component for sealing the transfer hole being provided on the surface of the partition wall; The sealing assembly includes a shielding door rotatably connected to the surface of the partition wall via a hinge. The shielding door has the same axis as the transfer hole. A corrugated pipe is fixedly connected to the side of the shielding door near the transfer hole. A baffle is fixedly connected to the end of the corrugated pipe away from the shielding door. An air pipe is fixedly connected inside the shielding door. One end of the air pipe extends into the interior of the corrugated pipe, and a vacuum pump is installed at the other end of the air pipe.

[0007] As a further embodiment of this utility model, the air tube is a steel wire hose with an embedded steel wire.

[0008] As a further embodiment of this utility model, the partition wall has an internal receiving groove, which communicates with the interior of the transmission hole, and the corrugated pipe is located inside the receiving groove.

[0009] As a further embodiment of this utility model, a fixing ring is fixedly connected inside the transfer hole, and a rubber ring is fixedly connected to the surface of the baffle. The outer diameter of the baffle is smaller than the inner diameter of the fixing ring, and the outer diameter of the rubber ring is equal to the outer diameter of the fixing ring.

[0010] As a further embodiment of this utility model, a sealing ring is fixedly connected to the side of the shielding door facing the partition wall, and a positioning groove is provided on the surface of the partition wall at a position corresponding to the sealing ring, and the sealing ring is inserted into the interior of the positioning groove.

[0011] As a further embodiment of this utility model, the end of the shielding door away from the partition wall is rotatably connected to a rotating plate via a positioning shaft. A sliding rod is fixedly connected to the surface of the rotating plate. A sliding groove is provided on the surface of the partition wall. A slider is slidably connected inside the sliding groove. The sliding rod is fixedly connected to the slider. A cover plate is fixedly connected to the surface of the partition wall. The cover plate is located on the surface of the sliding groove.

[0012] As a further embodiment of this utility model, the slide groove has an arc-shaped structure, and the slide groove and the rotating plate are on the same axis.

[0013] As a further embodiment of this utility model, the cover plate covers half of the groove.

[0014] The technical effects and advantages of this utility model are as follows: 1. This utility model achieves a primary seal through bellows contraction, a secondary seal formed by the fixing ring and rubber ring, and a tertiary seal formed by the sealing ring and positioning groove, creating a multi-layered, progressive sealing structure. This design greatly enhances the overall airtightness of the transfer door, effectively preventing the intrusion of external air and contaminants, and reliably maintaining the stability of the clean environment inside the isolator. It is particularly suitable for applications requiring extremely high cleanliness, such as biopharmaceuticals and aseptic experiments.

[0015] 2. This invention uses a bellows as both a sealing and detection element. When the bellows fails to seal due to wear or damage, the vacuum pump will continue to operate because it cannot reach the predetermined vacuum level. This abnormal operating state can serve as a clear visual or audible signal, alerting operators to promptly inspect and replace the affected component.

[0016] 3. The entire sealing process of this utility model can be completed automatically simply by closing the shielding door and starting the vacuum pump, without the need for complicated mechanical locking operations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2This is a schematic diagram of the isolator body and partition wall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the partition wall and shielding door structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the slide groove and slide rod structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the corrugated pipe and baffle structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the vertical cross-sectional structure of the partition wall of this utility model.

[0023] Figure 7 This is a schematic diagram of the vertical cross-section structure of the corrugated pipe of this utility model.

[0024] The attached diagram is labeled as follows: 1. Isolator body; 2. Partition wall; 3. Barrier door; 4. Air pipe; 5. Vacuum pump; 6. Corrugated pipe; 7. Baffle; 8. Transfer hole; 9. Receiving groove; 10. Fixing ring; 11. Rubber ring; 12. Sealing ring; 13. Positioning groove; 14. Rotating plate; 15. Slide groove; 16. Cover plate; 17. Slide rod. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Reference Figures 1-7 This utility model provides an isolator with a fast-sealing transfer door, including an isolator body 1, a partition wall 2 fixedly connected inside the isolator body 1, a transfer hole 8 for transferring items is opened inside the partition wall 2, and a sealing component for sealing the transfer hole 8 is provided on the surface of the partition wall 2. The sealing assembly includes a shielding door 3 that is hinged to the surface of the partition wall 2. The shielding door 3 is axially aligned with the transfer hole 8. A corrugated pipe 6 is fixedly connected to the side of the shielding door 3 closest to the transfer hole 8. A baffle 7 is fixedly connected to the end of the corrugated pipe 6 furthest from the shielding door 3. An air pipe 4 is fixedly connected inside the shielding door 3. One end of the air pipe 4 extends into the interior of the corrugated pipe 6, and a vacuum pump 5 is installed at the other end of the air pipe 4. The air pipe 4 is a flexible steel wire hose with embedded steel wire.

[0027] The partition wall 2 has an internal receiving groove 9, which is interconnected with the interior of the transfer hole 8, and the corrugated pipe 6 is located inside the receiving groove 9.

[0028] When it is necessary to close the transfer hole 8, the shield door 3 is rotated by the hinge, so that the shield door 3 covers one side of the partition wall 2, blocking one side of the transfer hole 8. At this time, the baffle 7 and the bellows 6 will be inserted into the interior of the transfer hole 8. Then, the vacuum pump 5 is started. The vacuum pump 5 will draw air out of the bellows 6 through the air pipe 4. The bellows 6 will contract due to atmospheric pressure. The baffle 7 will move towards the shield door 3 inside the transfer hole 8. Due to the contraction, the diameter of the bellows 6 will gradually increase until it fills the entire cavity of the receiving groove 9. Thus, the transfer hole 8 is sealed by the contraction of the bellows 6.

[0029] When the bellows 6 is worn or damaged, the gaps caused by the damage will cause the vacuum pump 5 to work continuously when the bellows 6 contracts. Operators can judge whether the bellows 6 is damaged by the unusual running time of the vacuum pump 5.

[0030] This sealing method is not only easy to operate, but also has an excellent sealing effect. During the contraction of the bellows 6, the fit with the inner wall of the receiving groove 9 gradually increases, effectively preventing external air or impurities from entering the isolator through the transfer hole 8, ensuring a clean environment inside the isolator. At the same time, since the air pipe 4 is a steel wire hose with embedded steel wire, it has good flexibility and durability, ensuring that the vacuum pump 5 will not affect the sealing effect due to pipe deformation when pumping air.

[0031] It should be noted that the vacuum pump 5 uses physical or chemical methods to transfer gas molecules in a sealed space from one place to another, thereby reducing the gas pressure in the space and creating a vacuum. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0032] In this utility model, a fixing ring 10 is fixedly connected inside the transfer hole 8, and a rubber ring 11 is fixedly connected to the surface of the baffle 7. The outer diameter of the baffle 7 is smaller than the inner diameter of the fixing ring 10, and the outer diameter of the rubber ring 11 is equal to the outer diameter of the fixing ring 10.

[0033] When the baffle 7 is inserted into the transmission hole 8, the rubber rings 11 will come into contact with each other because of the transmission hole 8. At this time, if the blocking door 3 is pushed continuously, the baffle 7 will pass over the fixing ring 10, and the rubber rings 11 will deform due to their flexibility and pass through the fixing ring 10. When the bellows 6 contracts, the bellows 6 and the inner wall of the receiving groove 9 will fit tightly together, and the fixing ring 10 and the rubber ring 11 will also fit tightly together, thereby achieving a secondary seal for the transmission hole 8.

[0034] In this utility model, a sealing ring 12 is fixedly connected to the side of the shielding door 3 facing the partition wall 2, and a positioning groove 13 is provided on the surface of the partition wall 2 at a position corresponding to the sealing ring 12, and the sealing ring 12 is inserted into the interior of the positioning groove 13.

[0035] When the shielding door 3 covers one end of the transfer hole 8, the sealing ring 12 will be inserted into the interior of the positioning groove 13 and fit tightly against the partition wall 2, thus achieving a triple seal on the transfer hole 8.

[0036] In this utility model, the end of the blocking door 3 away from the partition wall 2 is rotatably connected to a rotating plate 14 via a positioning shaft. A sliding rod 17 is fixedly connected to the surface of the rotating plate 14. A sliding groove 15 is opened on the surface of the partition wall 2. A slider is slidably connected inside the sliding groove 15. The sliding rod 17 is fixedly connected to the slider. A cover plate 16 is fixedly connected to the surface of the partition wall 2. The cover plate 16 is located on the surface of the sliding groove 15. The sliding groove 15 has an arc-shaped structure, and the sliding groove 15 and the rotating plate 14 are on the same axis. The cover plate 16 covers half of the sliding groove 15.

[0037] When the blocking door 3 covers the transfer hole 8, the sliding rod 17 will drive the slider to insert into the inside of the slide groove 15. Then, the rotating plate 14 will be rotated, and the sliding rod 17 will drive the slider to slide towards the cover plate 16 inside the slide groove 15 until the slider overlaps with the cover plate 16. The cover plate 16 limits the slider, thereby locking the position of the blocking door 3.

[0038] The use of this utility model involves the following steps: S1: When it is necessary to close the transfer hole 8, the shield door 3 is rotated by the hinge, so that the shield door 3 covers one side of the partition wall 2, blocking one side of the transfer hole 8. At this time, the baffle 7 and the bellows 6 will be inserted into the interior of the transfer hole 8. Then the vacuum pump 5 is started. The vacuum pump 5 will draw air from the interior of the bellows 6 through the air pipe 4. The bellows 6 will contract due to atmospheric pressure. The baffle 7 will move towards the shield door 3 inside the transfer hole 8. Due to the contraction, the diameter of the bellows 6 will gradually increase until it fills the entire cavity of the receiving groove 9, thereby sealing the transfer hole 8 through the contraction of the bellows 6. S2: When the baffle 7 is inserted into the interior of the transfer hole 8, the rubber rings 11 will come into contact with each other because of the transfer hole 8. At this time, if the blocking door 3 is continuously pushed, the baffle 7 will pass over the fixing ring 10, and the rubber rings 11 will deform due to their flexibility and eventually pass through the fixing ring 10. When the bellows 6 contracts, the bellows 6 and the inner wall of the receiving groove 9 are tightly fitted together, and the fixing ring 10 and the rubber ring 11 are also tightly fitted together, thereby achieving a secondary seal for the transfer hole 8. S3: When the shielding door 3 covers one end of the transfer hole 8, the sealing ring 12 will be inserted into the interior of the positioning groove 13 and fit tightly against the partition wall 2 to achieve a triple seal on the transfer hole 8. S4: When the blocking door 3 covers the transfer hole 8, the sliding rod 17 will drive the slider to insert into the inside of the slide groove 15. Then, the rotating plate 14 will be rotated, and the sliding rod 17 will drive the slider to slide towards the cover plate 16 inside the slide groove 15 until the slider overlaps with the cover plate 16. The cover plate 16 limits the slider, thereby locking the position of the blocking door 3.

[0039] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. An isolator with a fast-sealing transfer door, comprising an isolator body (1), characterized in that: The isolator body (1) is fixedly connected to a partition wall (2), and the partition wall (2) is provided with a transfer hole (8) for transferring items. The surface of the partition wall (2) is provided with a sealing component for sealing the transfer hole (8). The sealing assembly includes a shield door (3) that is rotatably connected to the surface of the partition wall (2) via a hinge. The shield door (3) has the same axis as the transfer hole (8). A corrugated pipe (6) is fixedly connected to the side of the shield door (3) near the transfer hole (8). A baffle (7) is fixedly connected to the end of the corrugated pipe (6) away from the shield door (3). An air pipe (4) is fixedly connected inside the shield door (3). One end of the air pipe (4) extends into the interior of the corrugated pipe (6), and a vacuum pump (5) is installed at the other end of the air pipe (4).

2. The isolator with a fast-sealing transfer door according to claim 1, characterized in that: The air tube (4) is a steel wire hose with embedded steel wire.

3. An isolator with a fast-sealing transfer door according to claim 1, characterized in that: The partition wall (2) has a receiving groove (9) inside, which is connected to the interior of the transmission hole (8), and the corrugated pipe (6) is located inside the receiving groove (9).

4. An isolator with a fast-sealing transfer door according to claim 1, characterized in that: A fixed ring (10) is fixedly connected inside the transmission hole (8), and a rubber ring (11) is fixedly connected to the surface of the baffle (7). The outer diameter of the baffle (7) is smaller than the inner diameter of the fixed ring (10), and the outer diameter of the rubber ring (11) is equal to the outer diameter of the fixed ring (10).

5. An isolator with a fast-sealing transfer door according to claim 1, characterized in that: A sealing ring (12) is fixedly connected to the side of the shielding door (3) facing the partition wall (2). A positioning groove (13) is provided on the surface of the partition wall (2) at a position corresponding to the sealing ring (12). The sealing ring (12) is inserted into the interior of the positioning groove (13).

6. An isolator with a fast-sealing transfer door according to claim 1, characterized in that: The end of the shielding door (3) away from the partition wall (2) is rotatably connected to a rotating plate (14) via a positioning shaft. A sliding rod (17) is fixedly connected to the surface of the rotating plate (14). A sliding groove (15) is opened on the surface of the partition wall (2). A slider is slidably connected inside the sliding groove (15). The sliding rod (17) is fixedly connected to the slider. A cover plate (16) is fixedly connected to the surface of the partition wall (2). The cover plate (16) is located on the surface of the sliding groove (15).

7. An isolator with a fast-sealing transfer door according to claim 6, characterized in that: The slide (15) has an arc-shaped structure, and the slide (15) and the rotating plate (14) are on the same axis.

8. An isolator with a fast-sealing transfer door according to claim 6, characterized in that: The cover plate (16) covers half of the groove (15).

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