Sterile filtering device

Abstract

The utility model discloses a sterile filter device in the technical field of filter devices, which comprises a fixed cylinder, a filter frame fixedly arranged on the upper side of the fixed cylinder, a support plate fixedly arranged on the inner side of the filter frame, a filter membrane arranged on the upper side of the support plate, a conical cylinder arranged on the upper side of the filter frame, and a mounting plate fixedly arranged on the outer side of the conical cylinder. Fixing plates in butt joint with the mounting plates are fixedly arranged on the outer sides of the filtering frames, multiple sets of fixing frames are fixedly arranged on the inner sides of the mounting plates, connecting blocks are movably inserted into the inner sides of the multiple sets of fixing frames, clamping blocks are fixedly arranged on the portions, located on the outer sides of the mounting plates, of the outer sides of the mounting blocks, and clamping grooves in butt joint with the clamping blocks are formed in the inner sides of the multiple sets of mounting grooves; springs are arranged on the inner sides of the fixing frames. Through a simple mounting structure, the device can be conveniently disassembled, so that the filter membrane can be conveniently replaced, the operation is convenient, the filtering effect of the filter membrane is ensured, the practical effect is good, and the device is worthy of being popularized and used in the existing market.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and more specifically, to a sterile filtration device. Background Technology

[0002] Aseptic filtration is one of the many existing filtration technologies. Some liquid materials require aseptic filtration during processing, such as liquid culture media. Existing aseptic filtration generally uses filter membranes for filtration.

[0003] When using existing sterile filtration devices, the filtration efficiency gradually decreases as the filter membrane is used more times. Because it is inconvenient to disassemble the filtration device, replacing the filter membrane is very inconvenient, and the replacement process consumes a lot of time and effort, reducing work efficiency.

[0004] In view of this, we propose a sterile filtration device. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a sterile filtration device to solve the problem mentioned in the background art that existing sterile filtration devices are inconvenient to disassemble, resulting in inconvenience in replacing the filter membrane.

[0007] 2. Technical Solution

[0008] A sterile filtration device includes a fixed cylinder, a filter frame fixedly mounted on the upper side of the fixed cylinder, a support plate fixedly mounted on the inner side of the filter frame, a filter membrane mounted on the upper side of the support plate, and a conical cylinder mounted on the upper side of the filter frame. An installation plate is fixedly mounted on the outer side of the conical cylinder, and a fixing plate for docking with the installation plate is fixedly mounted on the outer side of the filter frame. Multiple sets of fixed frames are fixedly mounted on the inner side of the installation plate, and connecting blocks are movably inserted into the inner side of each set of fixed frames. The connecting blocks movably penetrate the fixed frames and extend to the outer side. A support block is fixedly mounted on the outer side of the connecting blocks located outside the fixed frames. An installation block is fixedly mounted on the lower side of the support block, movably penetrating the installation plate and extending to the outer side. A locking block is fixedly mounted on the outer side of the installation block located outside the installation plate. Multiple sets of installation grooves are formed on the outer side of the fixed plate, and locking slots for docking with the locking blocks are formed on the inner side of each set of installation grooves. A spring is mounted inside the fixed frame, with one end connected to the fixed frame and the other end connected to the connecting block.

[0009] Preferably, an airbag is fixedly disposed on the inner side of the conical cylinder, and an air tube is fixedly disposed on the outer side of the airbag. The air tube passes through the conical cylinder and extends to the outer side, and an inflatable airbag is fixedly disposed on the outer end of the air tube located on the outer side of the conical cylinder.

[0010] Preferably, a wedge-shaped block is fixedly provided on the outer side of the connecting block, and two sets of mating wedge-shaped blocks are movably provided on the inner side of the mounting plate. A connecting rod is fixedly provided on the upper side of both sets of pressing blocks. The connecting rod movably passes through the mounting plate and extends to the upper side, and a U-shaped block is fixedly provided on the outer end of the connecting rod at the upper part of the mounting plate.

[0011] Preferably, an anti-slip pad is fixedly fitted on the outer side of the U-shaped block.

[0012] Preferably, a limit ring is fixedly provided on the inner side of the conical cylinder located on the lower side of the airbag.

[0013] Preferably, a sealing ring is fixedly provided on the lower side of the mounting plate, and a sealing groove for mating with the sealing ring is provided on the upper side of the fixed plate.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. This utility model, by setting up a conical cylinder, mounting plate, fixing plate, fixing frame, connecting block, wedge block, spring, card block, card groove and other structures, and through the cooperation of each structure, makes it easy to disassemble the device, thereby facilitating the replacement of the filter membrane, making operation convenient, and ensuring the filtration effect of the filter membrane.

[0017] 2. This utility model improves the sealing performance of the filtration device and ensures sterile filtration by setting up structures such as airbags, air tubes, inflatable airbags, sealing rings, and sealing grooves, and by cooperating with each structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram illustrating the disassembly effect of this utility model;

[0021] Figure 4 This is a bottom view of the mounting plate structure of this utility model;

[0022] Figure 5 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0023] The following are the labels in the diagram: 1. Fixed cylinder, 2. Filter frame, 3. Support plate, 4. Filter membrane, 5. Conical cylinder, 6. Mounting plate, 7. Fixed plate, 8. Airbag, 9. Air tube, 10. Inflatable airbag, 11. Fixed frame, 12. Connecting block, 12. Support block, 13. Wedge block, 14. Spring, 15. Mounting block, 16. Locking block, 17. Mounting groove, 18. Locking groove, 19. Pressure block, 20. Connecting rod, 21. U-shaped block, 22. Limiting ring, 23. Sealing ring, 24. Sealing groove. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] A sterile filtration device includes a fixed cylinder 1, a filter frame 2 fixedly mounted on the upper side of the fixed cylinder 1, a support plate 3 fixedly mounted inside the filter frame 2, a filter membrane 4 mounted on the upper side of the support plate 3, a conical cylinder 5 mounted on the upper side of the filter frame 2, an mounting plate 6 fixedly mounted on the outer side of the conical cylinder 5, and a fixed plate 7 fixedly mounted on the outer side of the filter frame 2 to mate with the mounting plate 6. Multiple sets of fixed frames 11 are fixedly mounted inside the mounting plate 6, and connecting blocks 12 are movably inserted into the inner side of each set of fixed frames 11. The connecting blocks 12 movably penetrate the fixed frames 11 and extend to the outer side. A support block 121 is fixedly mounted on the outer side of the connecting block 12 located outside the fixed frames 11. An mounting block 15 is fixedly mounted below the support block 121, and the mounting block 15 movably penetrates the mounting plate 6 and extends to the outer side. A locking block 16 is fixedly installed on the outer side of the mounting plate 6. Multiple sets of mounting grooves 17 are opened on the outer side of the fixing plate 7. The inner side of each set of mounting grooves 17 is provided with a slot 18 for engaging the locking block 16. A spring 14 is provided on the inner side of the fixing frame 11. One end of the spring 14 is connected to the fixing frame 11, and the other end of the spring 14 is connected to the connecting block 12. The spring 14 does not deform in its initial state. When the mounting block 15 moves and drives the locking block 16 to move, it can drive the support block 121 and the connecting block 12 to move. The movement of the connecting block 12 compresses the spring 14, causing the spring 14 to deform. Subsequently, through the release of the elastic potential energy of the spring 14, the locking block 16 can be driven to quickly engage in the slot 18, improving the convenience and stability of the connection between the mounting plate 6 and the fixing plate 7.

[0029] Specifically, an air bladder 8 is fixedly installed inside the conical cylinder 5, and an air tube 9 is fixedly installed outside the air bladder 8. The air tube 9 passes through the conical cylinder 5 and extends to the outside. An inflatable air bladder 10 is fixedly installed at the outer end of the air tube 9 on the outer part of the conical cylinder 5. By squeezing the inflatable air bladder 10, the air bladder 8 can be easily inflated, causing the air bladder 8 to expand, thereby improving the convenience of filtration and ensuring sterile filtration.

[0030] Furthermore, a wedge-shaped block 13 is fixedly installed on the outer side of the connecting block 12, and two sets of pressure blocks 19 for mating with the wedge-shaped blocks 13 are movably installed on the inner side of the mounting plate 6. A connecting rod 20 is fixedly installed on the upper side of each of the two sets of pressure blocks 19. The connecting rod 20 movably passes through the mounting plate 6 and extends to the upper side. A U-shaped block 21 is fixedly installed on the outer end of the connecting rod 20 on the upper side of the mounting plate 6. By pressing the U-shaped block 21, the two sets of mounting blocks 5 and the two sets of locking blocks 16 can be moved simultaneously, improving the ease of operation.

[0031] It is worth noting that the U-shaped block 21 is fixedly fitted with an anti-slip pad on the outside. The anti-slip pad can improve the friction of the U-shaped block 21, making it easier to press the U-shaped block 21 and avoiding slippage.

[0032] It is worth noting that a limiting ring 22 is fixedly installed on the inner side of the conical cylinder 5, which is located below the air bladder 8. The limiting ring 22 can be used to limit the liquid culture medium container, thereby ensuring the stability during filtration.

[0033] In addition, a sealing ring 23 is fixedly provided on the lower side of the mounting plate 6, and a sealing groove 24 is provided on the upper side of the fixing plate 7 to mate with the sealing ring 23. The sealing ring 23 is movably inserted into the sealing groove 24, which facilitates the installation and removal of the mounting plate 6 and the fixing plate 7, and improves the connection sealing between the mounting plate 6 and the fixing plate 7, thereby improving the overall sealing performance of the device.

[0034] Working principle: The mouth of the storage bottle containing liquid culture medium is inserted into the conical cylinder 5. Then, the air bladder 8 is inflated by squeezing the inflatable balloon bladder 10, which expands the air bladder 8 to fix and seal the storage bottle. The liquid culture medium in the storage bottle flows into the filter frame 2 and is filtered through the filter membrane 4. After filtration, it is stored in the fixed cylinder 1. When the filter membrane 4 needs to be replaced, the U-shaped block 21 is pressed down to move the two sets of connecting rods 20. The movement of the connecting rods 20 moves the pressure block 9. The movement of the pressure block 9 squeezes the wedge-shaped blocks 13 on both sides. The wedge-shaped blocks 13 are squeezed to move the connecting block 12 inward to the fixed frame 11 and squeeze the spring 14. When the connecting block 12 moves, it drives the support block 121 and the mounting block 15 to move. The movement of the mounting block 15 moves the locking block 16 out of the locking groove 18. Then the mounting plate 6 and the fixed plate 7 can be separated, which facilitates the replacement of the filter membrane 4 and improves the ease of use.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sterile filtration device, comprising a fixed cylinder (1), characterized in that: A filter frame (2) is fixedly installed on the upper side of the fixed cylinder (1). A support plate (3) is fixedly installed on the inner side of the filter frame (2). A filter membrane (4) is installed on the upper side of the support plate (3). A conical cylinder (5) is installed on the upper side of the filter frame (2). An installation plate (6) is fixedly installed on the outer side of the conical cylinder (5). A fixing plate (7) that connects to the installation plate (6) is fixedly installed on the outer side of the filter frame (2). Multiple sets of fixing frames (11) are fixedly installed on the inner side of the installation plate (6). A connecting block (12) is movably inserted into the inner side of each of the multiple sets of fixing frames (11). The connecting block (12) movably passes through the fixing frame (11) and extends to the outer side. The outer side of the connecting block (12) is located at... A support block (121) is fixedly installed on the outer side of the fixed frame (11). An installation block (15) is fixedly installed on the lower side of the support block (121). The installation block (15) moves through the mounting plate (6) and extends to the outside. A locking block (16) is fixedly installed on the outer side of the mounting block (15) located on the outer side of the mounting plate (6). Multiple sets of mounting grooves (17) are opened on the outer side of the fixed plate (7). The locking grooves (18) for docking the locking block (16) are opened on the inner side of the multiple sets of mounting grooves (17). A spring (14) is provided on the inner side of the fixed frame (11). One end of the spring (14) is connected to the fixed frame (11), and the other end of the spring (14) is connected to the connecting block (12).

2. The aseptic filtration device according to claim 1, characterized in that: An airbag (8) is fixedly installed inside the conical cylinder (5), and an air tube (9) is fixedly installed outside the airbag (8). The air tube (9) passes through the conical cylinder (5) and extends to the outside. An inflatable airbag (10) is fixedly installed at the outer end of the air tube (9) located on the outer side of the conical cylinder (5).

3. The aseptic filtration device according to claim 1, characterized in that: A wedge block (13) is fixedly provided on the outside of the connecting block (12). Two sets of pressure blocks (19) for mating wedge blocks (13) are movably provided on the inside of the mounting plate (6). A connecting rod (20) is fixedly provided on the upper side of both sets of pressure blocks (19). The connecting rod (20) movably passes through the mounting plate (6) and extends to the upper side. A U-shaped block (21) is fixedly provided on the upper part of the outer end of the connecting rod (20) located on the mounting plate (6).

4. The aseptic filtration device according to claim 3, characterized in that: The U-shaped block (21) is fixedly fitted with an anti-slip pad on its outer side.

5. The aseptic filtration device according to claim 1, characterized in that: A limit ring (22) is fixedly installed on the inner side of the conical cylinder (5) located on the lower side of the airbag (8).

6. The sterile filtration device according to claim 1, characterized in that: A sealing ring (23) is fixedly provided on the lower side of the mounting plate (6), and a sealing groove (24) for docking the sealing ring (23) is provided on the upper side of the fixing plate (7).

Images