An isolator with a folding door
Patent Information
- Application Number
- CN202521825002.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-08-26
AI Technical Summary
[0006]为了实现上面发明目的,本实用新型公开了一种带有折叠门的隔离器,这种折叠门在起到密封、分开隔离器内部,同时操作简单,可以传递更大体积的物料,解决了现有技术存在的操作困难,传递面积太小的难题,提高了在隔离器中的操作便利性
[0009] Compared with the prior art, the large opening design of the folding door of this utility model can meet the needs of large-volume materials, large reactor components, or extra-long feeding tools.
Smart Images

Figure CN224755624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biopharmaceutical manufacturing equipment, specifically to an isolator with a folding door. Background Technology
[0002] Antibody-drug conjugates (ADCs) are small molecule drugs linked to monoclonal antibodies via a chemical chain. The monoclonal antibody then acts as a carrier to target and deliver the drug to target cells. Typically, the small molecule compound used is a highly active compound, and operators should minimize contact with it. Therefore, routine operations such as weighing and adding raw materials must be performed within an isolator. Some isolators have at least two operating positions, each requiring separate sealing during operation. A door inside the isolator that provides isolation can address this issue.
[0003] Patent CN112681947 discloses a double-layer airtight structure for a rat hole door used in isolators. The main function of this rat hole door is to provide a good seal, and its rounded corners reduce the difficulty of cleaning. However, the door is quite thick and heavy, making it inconvenient to operate while wearing gloves.
[0004] Patent CN205532012U discloses a rat hole door structure for an isolator, which adopts a push-pull structure. Although it achieves isolation, in reality, the push-pull door pushes the door on one side to the other side, and the cross-section of the passage is half, which is very inconvenient for passing large volumes of materials.
[0005] Therefore, an isolator with a mouse hole door is needed. This mouse hole door should not be too bulky, nor should it reduce the effective transmission area. Utility Model Content
[0006] To achieve the above-mentioned objectives, this utility model discloses an isolator with a folding door. This folding door not only seals and separates the interior of the isolator, but also is simple to operate and can transfer larger volumes of materials. It solves the problems of operational difficulties and insufficient transfer area in the prior art, and improves the ease of operation in the isolator.
[0007] The purpose of this utility model is to disclose an isolator with a folding door, which includes two operating stations. A folding door is provided inside the isolator and between the two operating stations. The folding door includes two parallel slide rails, a door frame, a sealing strip embedded in the door frame, and a movable door leaf set in the slide rails.
[0008] One side of the door leaf is a rotating shaft, located near the inner wall of the isolator, and the door leaf rotates relative to this side; the side away from the rotating shaft is a movable shaft, which can move within the slide rail. The middle of the door leaves are hinged together, so that the movable shaft moves closer to or away from the rotating shaft, forming the opening and closing of the folding door.
[0009] Compared with the prior art, the large opening design of the folding door of this utility model can meet the needs of large-volume materials, large reactor components, or extra-long feeding tools. Attached Figure Description
[0010] Figure 1 Schematic diagram of the two-operation-station isolator of this utility model;
[0011] Figure 2 A schematic diagram of the folding door of this utility model when closed;
[0012] Figure 3 A schematic diagram of the folding door of this utility model when opened;
[0013] Figure 4 A schematic diagram of the door frame of the folding door of this utility model;
[0014] Figure 5 A schematic diagram of the sealing strip of the folding door of this utility model;
[0015] Figure 6 A schematic diagram of the door panel of this utility model folding door;
[0016] Figure 7 This utility model Figure 2 A magnified view of part A in the image.
[0017] In the diagram, the components are: 1. Operating station; 2. Slide rail; 3. Door frame; 4. Door leaf; 5. Rotating shaft; 6. Moving shaft; 7. Handle; 8. Sealing strip; 9. Return spring; 10. Return spring connection point; and 11. Limit spring. Specific Implementation
[0018] like Figure 1-7 An isolator with a folding door includes two operating stations 1. A folding door is provided inside the isolator and between the two operating stations 1. The folding door includes two parallel slide rails 2, a door frame 3, a sealing strip 8 embedded in the door frame 3, and a movable door leaf 4 provided in the slide rails 2.
[0019] The door leaf 4 has a rotating shaft 5 on one side, which is located near the inner wall of the isolator and the door leaf 4 rotates relative to this side; the side away from the rotating shaft 5 has a movable shaft 6, which can move within the slide rail 2. The middle of the door leaf 4 is hinged together, so that the movable shaft 6 moves closer to or away from the rotating shaft 5, forming the opening and closing of the folding door.
[0020] A return spring connection point 10 is provided on one side of the rotating shaft 5. One end of the return spring 9 is connected to the door leaf 4, and the other end is connected to the inner wall of the isolator.
[0021] A limit spring 11 is provided at one end of the slide rail 2.
[0022] Both the door frame 3 and the sealing strip 8 are deformable.
[0023] A handle 7 is provided on the door leaf 4 near the movable axis 6.
[0024] Working Principle: The isolator has two operating stations 1. One station is used for dispensing or preparing tools, and the other station is used for feeding materials into the reactor. To prevent powder from entering the other station during dispensing, a folding door is installed between the two stations. This includes parallel sliding rails 2, a deformable door frame 3, sealing strips 8, and door panels 4. Axles are installed on the two vertical sides of the door panel 4, with both ends longer than the door panel 4. One end of the axle is inserted into the door frame 3 and can rotate as a rotation axis 5. The other axle has limit protrusions at both ends to prevent it from detaching from the sliding rails 2 when sliding. The door panel 4 is hinged in the middle and can be folded. A return spring 9 is located on the door panel 4, and a limit spring 11 is located in the sliding rails 2 to aid in opening and closing. A handle 7 is provided on the door panel 4 for easy opening.
[0025] Depending on their application, isolators are classified as atmospheric pressure or negative pressure isolators. The folding door of this invention is designed for use under atmospheric pressure.
Claims
1. An isolator with a folding door, comprising two operating stations (1), wherein a folding door is provided inside the isolator and between the two operating stations (1), characterized in that, The folding door includes two parallel slide rails (2), a door frame (3), a sealing strip (8) embedded in the door frame (3), and a movable door leaf (4) set in the slide rails (2). One side of the door leaf (4) is a rotating shaft (5), which is located close to the inner wall of the isolator and the door leaf (4) rotates relative to this side. The side away from the rotating shaft (5) is a movable shaft (6), which can move in the slide rails (2). The middle of the door leaf (4) is hinged together, so that the movable shaft (6) moves closer to or away from the rotating shaft (5) to form the opening and closing of the folding door.
2. The isolator with a folding door according to claim 1, characterized in that, The rotating shaft (5) is provided with a return spring connection point (10) on one side. One end of the return spring (9) is connected to the door leaf (4), and the other end is connected to the inner wall of the isolator.
3. An isolator with a folding door according to claim 2, characterized in that, A limit spring (11) is provided at one end of the slide rail (2).
4. An isolator with a folding door according to claim 3, characterized in that, Both the door frame (3) and the sealing strip (8) are deformable.
5. An isolator with a folding door according to claim 4, characterized in that, A handle (7) is provided on the door leaf (4) near the movable axis (6).
Citation Information
Patent Citations
Rat hole door structure for isolator
CN205532012U