Electrodialysis combined plate frame
By designing a combined plate and frame structure consisting of a connecting sleeve, a fixing seat, a screw, and a sealing mechanism, the problem of inconvenient assembly of electrodialysis plates and frames was solved, achieving convenient frame connection and efficient sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-04-03
AI Technical Summary
The existing electrodialysis plate and frame is inconvenient to assemble and disassemble during use, which affects the operating efficiency of the ion exchange membrane.
A combined plate and frame structure including a connecting sleeve, a fixed seat, a screw, and a sealing mechanism was designed. The screw and slider are threaded together, and the magnetic block and insert block design of the combined mechanism are used to achieve a stable connection and sealing of the frame.
It enables convenient assembly and disassembly between frames, improves the replacement efficiency of ion exchange membranes, and enhances sealing performance.
Smart Images

Figure CN224071664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrodialysis technology, specifically to a combined plate and frame electrodialysis system. Background Technology
[0002] Utility model patent CN218393121U discloses an electrodialysis plate frame, belonging to the field of electrodialysis technology. The electrodialysis plate frame includes a substrate, one side of which has multiple elastic sealing protrusions, and the other side is a smooth plane. The height of the elastic sealing protrusions is h, and the vertical distance between adjacent elastic sealing protrusions is d, where h / d = 1 / 501 / 5. This utility model's electrodialysis plate frame, by setting the ratio of the height of the elastic sealing protrusions to the vertical distance between adjacent elastic sealing protrusions, achieves superior sealing performance.
[0003] In the aforementioned prior art, the plates and frames are not easily combined during use, and the assembly and disassembly of the ion exchange membrane are not convenient or quick enough. Therefore, improvements are needed. Utility Model Content
[0004] The purpose of this invention is to provide a combined plate and frame electrodialysis system that solves the problem of inconvenient combination of plates and frames.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrodialysis combined plate and frame, comprising two symmetrically distributed frames in contact with each other, an ion exchange membrane fixedly installed between the two frames, two symmetrically distributed connecting sleeves slidingly fitted on the outer sides of the two frames, connecting seats fixedly connected to the top and bottom of each connecting sleeve, a fixing seat fixedly connected to the outer side of each connecting sleeve, a screw rotatably fitted inside the fixing seat via a bearing, a rotating rod fixedly connected to the outer side of the screw, the rotating rod and the fixing seat rotatably connected via a bearing, a combination mechanism provided on the connecting seat, and a sealing mechanism provided on the fixing seat.
[0006] Preferably, there are multiple connecting seats, which are evenly distributed on the connecting sleeve. By designing multiple connecting seats, the frame can be fixed at different locations.
[0007] Preferably, the assembly mechanism includes a pull rod, which is slidably sleeved inside the connecting seat. A magnetic block is fixedly connected to the inner side of the pull rod, and the magnetic block is slidably connected to the connecting seat. A fixing rod is slidably sleeved inside the magnetic block, and the fixing rod is fixedly connected to the connecting seat. A spring is provided on the outer side of the fixing rod. A magnet is fixedly connected inside the connecting seat, and an insert is fixedly connected to the outer side of the magnetic block. The insert is slidably connected to the connecting sleeve and the frame. This assembly mechanism facilitates the assembly and fixing of the frames.
[0008] Preferably, one end of the spring is fixedly connected to the magnetic block, and the other end of the spring is fixedly connected to the connecting seat. The spring is designed so that its force can act on the magnetic block.
[0009] Preferably, the frame has a slot inside, and a plug is slidably connected inside the slot. By designing the slot, the plug can slide inside the frame.
[0010] Preferably, the sealing mechanism includes a slider, with the slider threadedly connected to the outer side of the screw. One end of the slider is fixedly connected to a connecting rod, which is slidably connected to a fixed seat and a connecting sleeve. A bracket is fixedly connected to the outer side of the connecting rod, and a pulley is rotatably sleeved on the inner side of the bracket. The pulley is slidably connected to the connecting sleeve, and an inclined block contacts the outer side of the pulley. The inclined block is fixedly connected to the frame. The other end of the slider is fixedly connected to a guide rod, which is slidably connected to the fixed seat. By designing this sealing mechanism, the tightness of the connection between the frames can be improved.
[0011] Preferably, the fixing base has a guide groove inside, and a guide rod is slidably connected inside the guide groove. By designing the guide groove, the guide rod can slide along the fixing base.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through the design of the connecting sleeve and the frame, can limit the vertical direction of the two frames, and through the insertion of the plug and the frame, can limit the horizontal direction of the frame, thereby realizing the combined use of the two frames. The combination operation is convenient and quick, and it is also convenient to replace the ion exchange membrane.
[0014] 2. This utility model designs a threaded fit between the screw and the slider. When the rotating rod drives the screw to rotate, the slider can move in a threaded motion, which in turn enables the pulley to move horizontally. The pulley can slide along the inclined surface of the inclined block and squeeze and push the inclined block, which can press the two frames together and improve the tightness of the frame connection to achieve a better sealing effect. Attached Figure Description
[0015] Figure 1 This is a perspective view of the overall structure of this utility model;
[0016] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;
[0017] Figure 3 This utility model Figure 2 Front sectional view of the connector;
[0018] Figure 4 This utility model Figure 2 Enlarged view of point A.
[0019] In the diagram: 1. Frame; 2. Ion exchange membrane; 3. Connecting sleeve; 4. Connecting seat; 5. Fixing seat; 6. Screw; 7. Rotary rod; 8. Combination mechanism; 9. Sealing mechanism; 81. Pull rod; 82. Magnetic block; 83. Fixing rod; 84. Spring; 85. Magnet; 86. Insert block; 87. Slot; 91. Slider; 92. Connecting rod; 93. Bracket; 94. Pulley; 95. Inclined block; 96. Guide rod; 97. Guide groove. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 , Figure 2 An electrodialysis combined plate and frame includes two symmetrically distributed frames 1, which are in contact with each other. An ion exchange membrane 2 is fixedly installed between the two frames 1. Two symmetrically distributed connecting sleeves 3 are slidably sleeved on the outer sides of the two frames 1. Connecting seats 4 are fixedly connected to the top and bottom of the connecting sleeves 3. There are multiple connecting seats 4, which are evenly distributed on the connecting sleeves 3. By designing multiple connecting seats 4, the frames 1 can be fixed at different positions. A fixing seat 5 is fixedly connected to the outer side of the connecting sleeve 3. A screw 6 is rotatably sleeved inside the fixing seat 5 through a bearing. A rotating rod 7 is fixedly connected to the outer side of the screw 6. The rotating rod 7 is rotatably connected to the fixing seat 5 through a bearing. A combination mechanism 8 is provided on the connecting seat 4, and a sealing mechanism 9 is provided on the fixing seat 5.
[0022] Please see Figure 1 , Figure 2 , Figure 3The assembly mechanism 8 includes a pull rod 81, which is slidably sleeved inside the connecting seat 4. A magnetic block 82 is fixedly connected to the inner side of the pull rod 81 and is slidably connected to the connecting seat 4. A fixing rod 83 is slidably sleeved inside the magnetic block 82 and is fixedly connected to the connecting seat 4. A spring 84 is provided on the outer side of the fixing rod 83. One end of the spring 84 is fixedly connected to the magnetic block 82, and the other end of the spring 84 is fixedly connected to the connecting seat 4. By designing the spring 84, the force of the spring 84 can act on the magnetic block 82. A magnet 85 is fixedly connected inside the connecting seat 4, and an insert 86 is fixedly connected to the outer side of the magnetic block 82. The insert 86 is slidably connected to the connecting sleeve 3 and the frame 1 respectively. A slot 87 is provided inside the frame 1, and the insert 86 is slidably connected inside the slot 87. By designing the slot 87, the insert 86 can slide inside the frame 1. By designing the assembly mechanism 8, it is convenient to assemble and fix the frames 1 together.
[0023] Please see Figure 1 , Figure 2 , Figure 4 The sealing mechanism 9 includes a slider 91. The outer side of the screw 6 is connected to the slider 91 by a thread. One end of the slider 91 is fixedly connected to a connecting rod 92. The connecting rod 92 is slidably connected to the fixed seat 5 and the connecting sleeve 3 respectively. The outer side of the connecting rod 92 is fixedly connected to a bracket 93. The inner side of the bracket 93 is rotatably sleeved with a pulley 94. The pulley 94 is slidably connected to the connecting sleeve 3. The outer side of the pulley 94 contacts an inclined block 95. The inclined block 95 is fixedly connected to the frame 1. The other end of the slider 91 is fixedly connected to a guide rod 96. The guide rod 96 is slidably connected to the fixed seat 5. The fixed seat 5 has a guide groove 97 inside. The guide rod 96 is slidably connected inside the guide groove 97. By designing the guide groove 97, the guide rod 96 can slide along the fixed seat 5. By designing the sealing mechanism 9, the tightness of the connection between the frames 1 can be improved.
[0024] The specific implementation process of this utility model is as follows: When it is necessary to combine the frame 1 and the ion exchange membrane 2, first place the ion exchange membrane 2 between the two frames 1, then slide the connecting sleeve 3 on the outside of the frame 1, and then move the pull rod 81 towards the frame 1. The pull rod 81 will drive the magnetic block 82 to move, and the magnetic block 82 will separate from the magnet 85. At this time, under the elastic action of the compressed spring 84, a counter-pushing force will be given to the magnetic block 82, which will push the magnetic block 82 and the insertion block 86 to move, so that the insertion block 86 can slide into the interior of the frame 1. At this time, the connection and fixation between the frame 1 and the connecting sleeve 3 can be realized, and the combination and fixation between the two frames 1 and the ion exchange membrane 2 can be completed. The combination operation is convenient and quick, and it is also convenient to replace and use the ion exchange membrane 2.
[0025] Once assembled, rotate the rotary rod 7, which in turn drives the screw 6 to rotate, causing the slider 91 to perform a threaded motion. The slider 91 then drives the connecting rod 92 to move, which in turn drives the bracket 93 and pulley 94 to move. The pulley 94 slides along the inclined surface of the inclined block 95, which in turn presses against the inclined block 95, thereby pressing against the frame 1. This can tighten the two frames 1 together, improving the tightness of the connection and achieving a better sealing effect.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electrodialysis combined plate-frame comprising two frames (1) symmetrically distributed, characterized in that: Two frame bodies (1) are in contact with each other, and an ion exchange membrane (2) is fixedly installed between the two frame bodies (1), the outer sides of the two frame bodies (1) are jointly sleeved with two connecting sleeves (3) which are symmetrically distributed, the top and bottom of each connecting sleeve (3) is fixedly connected with a connecting seat (4), the outer side of each connecting sleeve (3) is fixedly connected with a fixing seat (5), the inner side of each fixing seat (5) is rotatably sleeved with a screw rod (6) through a bearing, the outer side of each screw rod (6) is fixedly connected with a rotating rod (7), the rotating rod (7) is rotatably connected with the fixing seat (5) through a bearing, the connecting seat (4) is provided with a combination mechanism (8), and the fixing seat (5) is provided with a sealing mechanism (9).
2. A combined plate and frame for electrodialysis according to claim 1, characterized in that: The number of the connecting seat (4) is multiple, and the multiple connecting seats (4) are evenly distributed on the connecting sleeve (3).
3. A combined plate and frame for electrodialysis according to claim 1, characterized in that: The combination mechanism (8) comprises a pull rod (81), the inner side of the connecting seat (4) is slidably sleeved with the pull rod (81), the inner side of the pull rod (81) is fixedly connected with a magnetic block (82), the magnetic block (82) is slidably connected with the connecting seat (4), the inner side of the magnetic block (82) is slidably sleeved with a fixing rod (83), the fixing rod (83) is fixedly connected with the connecting seat (4), the outer side of the fixing rod (83) is provided with a spring (84), the inner side of the connecting seat (4) is fixedly connected with a magnet (85), the outer side of the magnetic block (82) is fixedly connected with an insertion block (86), and the insertion block (86) is slidably connected with the connecting sleeve (3) and the frame body (1) respectively.
4. A combined plate and frame for electrodialysis according to claim 3, characterized in that: One end of the spring (84) is fixedly connected with the magnetic block (82), and the other end of the spring (84) is fixedly connected with the connecting seat (4).
5. A combined plate and frame for electrodialysis according to claim 1, characterized in that: The inner side of the frame body (1) is provided with an insertion slot (87), and the inner side of the insertion slot (87) is slidably connected with the insertion block (86).
6. A combined plate and frame for electrodialysis according to claim 3, characterized in that: The sealing mechanism (9) comprises a sliding block (91), the outer side of the screw rod (6) is threadedly connected with the sliding block (91), one end of the sliding block (91) is fixedly connected with a connecting rod (92), the connecting rod (92) is slidably connected with the fixing seat (5) and the connecting sleeve (3) respectively, the outer side of the connecting rod (92) is fixedly connected with a support (93), the inner side of the support (93) is rotatably sleeved with a pulley (94), the pulley (94) is slidably connected with the connecting sleeve (3), the outer side of the pulley (94) is in contact with an inclined block (95), the inclined block (95) is fixedly connected with the frame body (1), the other end of the sliding block (91) is fixedly connected with a guide rod (96), and the guide rod (96) is slidably connected with the fixing seat (5).
7. A combined plate and frame for electrodialysis according to claim 1, characterized in that: The inner side of the fixing seat (5) is provided with a guide groove (97), and the inner side of the guide groove (97) is slidably connected with the guide rod (96).
Citation Information
Patent Citations
Electrodialysis plate frame
CN218393121U