Manual film preparation device
By incorporating a flexible rotating component and a removable sealing plate, the control challenges of the interfacial polymerization process were solved, enabling efficient membrane preparation and simplified operation, while improving the repeatability and integrity of the membrane.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYU (JIANGSU) ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
Existing technologies struggle to precisely control the interface polymerization process, and traditional operations are complex, damaging membrane performance and reducing repeatability, thus hindering industrialization.
The membrane clamping frame is opened and closed quickly and automatically reset by using a spring-loaded rotating component. Combined with a detachable sealing plate and a plug-in positioning structure, and with the help of a roller brush operation, the clamping process is simplified and the sealing performance is ensured, thus avoiding damage to the membrane surface.
It improves the controllability of the interfacial polymerization process, simplifies the operation steps, enhances the repeatability of the membrane, shortens the drying time, and ensures the integrity of the membrane.
Smart Images

Figure CN224237405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of membrane preparation technology, specifically a manual membrane preparation device. Background Technology
[0002] Interfacial polymerization technology is widely used in the preparation of polyamide membranes. This technology typically involves immersing the base membrane in a solution containing an aqueous monomer phase for a period of time. After removing excess aqueous solution, the membrane is then brought into contact with a solution containing an organic monomer phase, where a rapid polycondensation reaction occurs. After a certain time, an ultrathin polyamide layer forms at the interface of the two immiscible phases and adheres to the base membrane, thereby achieving the removal of impurity ions. The interfacial polymerization process is rapid, but traditional preparation processes struggle to control it precisely. Furthermore, existing control processes sometimes involve complex operational steps that can damage membrane performance and reduce repeatability, hindering industrialization. Therefore, we propose a novel manual membrane preparation device. Utility Model Content
[0003] The purpose of this invention is to provide a manual membrane preparation device to overcome or at least partially solve the above-mentioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a manual film preparation device, comprising a base plate, a film clamping frame disposed on the base plate, and a spring-loaded rotating component disposed on one side of the film clamping frame and the corresponding outer wall of the base plate. When an external force is applied to the rotating component, the film clamping frame can be rotated and opened to form an angle with the base plate. After the external force is lost, the film clamping frame can be reset and repositioned on the base plate under the action of the spring force. The other side of the film clamping frame has an opening, and a detachable sealing plate is disposed at the opening on the other side of the film clamping frame.
[0005] In a preferred embodiment, the elastic rotating component includes a fixed clamping plate, a movable clamping plate, a round shaft, and a rotational spring. The fixed clamping plate is disposed on one side of the base plate, and the movable clamping plate is disposed on one side of the clamping frame. The fixed clamping plate is horizontally disposed relative to the base plate, and the movable clamping plate forms a certain angle with the fixed clamping plate. The movable clamping plate is rotatably connected to the fixed clamping plate through the round shaft. The rotational spring is disposed on the round shaft, and its two ends abut against the fixed clamping plate and the movable clamping plate, respectively.
[0006] In a preferred embodiment, a buckle seat is provided on both sides of the base plate near the end of the sealing plate, and a buckle hook is provided at both ends of the sealing plate at the corresponding positions of the buckle seat. The buckle seat can be adapted to fasten onto the buckle hook to form a fastener.
[0007] In a preferred embodiment, a groove is provided on the other side of the base plate at a position corresponding to the sealing plate, and an insert is provided on the side of the sealing plate near the base plate, and the insert can be adapted to be inserted into the groove.
[0008] In a preferred embodiment, a roller brush is placed inside the membrane frame.
[0009] In a preferred embodiment, the roller brush further includes a sleeve disposed thereon, the top of the sleeve having a handle, and the two ends of the sleeve resting on the clamping frame.
[0010] Compared with existing technologies, this utility model provides a manual membrane preparation device that uses a spring-loaded rotating component to achieve rapid opening and closing and automatic resetting of the membrane clamping frame, simplifying the base membrane clamping process and avoiding the membrane wrinkling problem caused by uneven force application in traditional clamps. The device adopts a detachable sealing plate and a plug-in positioning structure, which facilitates quick loading and unloading during roller brush operation and ensures the sealing of the oil phase reaction stage. In conjunction with the roller brush, it can efficiently remove residual liquid from the membrane surface without damaging the interfacial polymerization layer, significantly shortening the drying time and greatly enhancing the controllability of the entire interfacial polymerization process. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is an exploded view of the base plate and the sealing plate of this utility model;
[0013] Figure 3 for Figure 2 Another structural diagram;
[0014] In the diagram: 1. Base plate; 2. Membrane clamping frame; 3. Fixed clamping plate; 4. Moving clamping plate; 5. Round shaft; 6. Rotary spring; 7. Sealing plate; 8. Buckle seat; 9. Buckle hook; 10. Groove; 11. Insert block; 12. Roller brush; 13. Sleeve; 14. Handle. Detailed Implementation
[0015] The present invention will be further described in detail below with reference to the accompanying drawings.
[0016] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this description, those skilled in the art can make creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0017] This utility model discloses a manual membrane preparation device, which solves the technical problems in the prior art. The overall concept is as follows:
[0018] Example 1:
[0019] Please see Figures 1-3 A manual film preparation device includes a base plate 1, a film clamping frame 2 disposed on the base plate 1, and a spring-loaded rotating component disposed on one side of the film clamping frame 2 and the corresponding outer wall of the base plate 1. When an external force is applied to the rotating component, the film clamping frame 2 can be rotated and opened to form an angle with the base plate 1. After the external force is lost, the film clamping frame 2 can be reset and repositioned onto the base plate 1 under the action of the spring force. The other side of the film clamping frame 2 has an opening, and a removable sealing plate 7 is disposed at the opening on the other side of the film clamping frame 2.
[0020] In specific implementation, the elastic rotating component includes a fixed clamping plate 3, a movable clamping plate 4, a round shaft 5, and a rotary spring 6. The fixed clamping plate 3 is set on one side of the base plate 1, and the movable clamping plate 4 is set on one side of the film clamping frame 2. The fixed clamping plate 3 is set horizontally relative to the base plate 1, and the movable clamping plate 4 forms a certain angle with the fixed clamping plate 3. The movable clamping plate 4 is rotatably connected to the fixed clamping plate 3 through the round shaft 5. The rotary spring 6 is set on the round shaft 5, and the two ends of the rotary spring 6 abut against the fixed clamping plate 3 and the movable clamping plate 4 respectively. With this setting, the elastic restoring characteristic of the rotary spring 6 enables the single-handed opening and closing operation of the film clamping frame 2, which simplifies the base film clamping process and ensures uniform and stable clamping force, avoiding the problem of film surface wrinkles caused by uneven manual force application in traditional clamps.
[0021] In specific implementation, a fastener 8 is provided on both sides of the base plate 1 near the end of the sealing plate 7, and a hook 9 is provided at both ends of the sealing plate 7 corresponding to the fastener 8. The fastener 8 can be fitted and fastened to the hook 9 to form a fastener. This quick disassembly and assembly structure realizes the second-level loading and unloading of the sealing plate 7, which facilitates the unobstructed entry and exit of the roller brush 12 during operation, while ensuring the immediate restoration of the seal during the oil phase reaction stage.
[0022] In specific implementation, a groove 10 is provided on the other side of the base plate 1 at the position corresponding to the sealing plate 7. A plug 11 is provided on the side of the sealing plate 7 close to the base plate 1, and the plug 11 can be adapted to be inserted into the groove 10. Under the cooperation of the groove 10 and the plug 11, a plug-in positioning structure is formed, so that the sealing plate 7 can be automatically calibrated during installation, eliminating manual alignment deviation.
[0023] In practice, a roller brush 12 is placed inside the film clamping frame 2. The roller brush 12 also includes a sleeve 13 set outside it. A handle 14 is set on the top of the sleeve 13, and the two ends of the sleeve 13 rest on the film clamping frame 2.
[0024] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows:
[0025] When in use, press the moving clamp 4 to rotate and open the clamping frame 2. Lay the cut base film face up between the base plate 1 and the clamping frame. Then slowly loosen the moving clamp 4 to lower the clamping frame 2. At this time, the film is pressed and fixed on the base plate 1 by the clamping frame 2. Then, pour the aqueous phase liquid onto the fixed base film to be coated. After the reaction is complete, invert the device to pour out the liquid. Then, open the buckles at both ends of the sealing plate 7 (that is, disengage the buckle 8 from the buckle hook 9), remove the sealing plate 7, and then place the sleeve 13 outside the roller brush 12 onto the membrane clamping frame 2. Roll it multiple times from the moving clamping plate 4 towards the tail. At this time, the roller brush 12 will remove excess solution from the membrane surface, accelerating the drying speed of the membrane surface. The lowest point of the roller brush 12 just touches the membrane surface, which can remove excess solution from the membrane surface through the rolling of the roller brush 12 without damaging the membrane surface. After that, fix the sealing plate 7 back onto the device, and then pour the oil phase liquid onto the base film. After the reaction time is complete, repeat the above operation, invert the combined device, and use the roller brush 12 to dry quickly.
[0026] The above description of the embodiments is provided to facilitate understanding and use of the present invention by those skilled in the art. It is obvious to those skilled in the art that various modifications can be made to the embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, the present invention is not limited to the above embodiments. Any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.
Claims
1. A manual membrane preparation apparatus, characterized in that: It includes a base plate (1), on which a clamping frame (2) is provided. On one side of the clamping frame (2) and the corresponding outer wall of the base plate (1), there are elastic rotating parts. When an external force is applied to the rotating parts, the clamping frame (2) can be rotated to open and form an angle with the base plate (1). After the external force is lost, the clamping frame (2) can be reset and re-covered on the base plate (1) under the action of the elastic force. The other side of the clamping frame (2) has an opening, and a removable sealing plate (7) is provided at the opening on the other side of the clamping frame (2).
2. The manual membrane preparation device according to claim 1, characterized in that: The elastic rotating component includes a fixed clamping plate (3), a movable clamping plate (4), a round shaft (5), and a rotating spring (6). The fixed clamping plate (3) is located on one side of the base plate (1), and the movable clamping plate (4) is located on one side of the clamping frame (2). The fixed clamping plate (3) is horizontally positioned relative to the base plate (1), and the movable clamping plate (4) forms a certain angle with the fixed clamping plate (3). The movable clamping plate (4) is rotatably connected to the fixed clamping plate (3) through the round shaft (5). The rotating spring (6) is located on the round shaft (5), and the two ends of the rotating spring (6) abut against the fixed clamping plate (3) and the movable clamping plate (4), respectively.
3. The manual membrane preparation device according to claim 2, characterized in that: Both sides of the base plate (1) are provided with a buckle seat (8) near the end of the sealing plate (7). Both ends of the sealing plate (7) are provided with buckle hooks (9) at positions corresponding to the buckle seat (8). The buckle seat (8) can be fitted and fastened to the buckle hook (9) to form a fastener.
4. The manual membrane preparation apparatus according to claim 3, characterized in that: A groove (10) is provided on the other side of the base plate (1) corresponding to the sealing plate (7). A plug (11) is provided on the side of the sealing plate (7) close to the base plate (1), and the plug (11) can be inserted into the groove (10).
5. A manual membrane preparation apparatus according to any one of claims 1-4, characterized in that: A roller brush (12) is placed inside the membrane frame (2).
6. The manual membrane preparation apparatus according to claim 5, characterized in that: The roller brush (12) also includes a sleeve (13) disposed outside it, the top of the sleeve (13) is provided with a handle (14), and the two ends of the sleeve (13) rest on the membrane frame (2).