Miniature electrodialysis experiment machine

Abstract

The utility model relates to the technical field of electrodialysis, and discloses a miniature electrodialysis experiment machine which comprises a shell, a sampling valve and an external connecting pipe, a top cover is arranged at the top of the shell, a sealing strip is arranged on the edge of the top cover, a water tank is arranged on the inner wall of the shell, and a water outlet is formed in the water tank. According to the miniature electrodialysis experiment machine, a rotating plate can drive an arc-shaped groove to abut against a sliding rod when rotating, so that the sliding rod drives a sliding block to slide in a sliding groove, when the sliding block slides in the sliding groove, a guide rod can slide along a guide groove, then the guide rod pulls a clamping block, and the clamping block is clamped in the sliding groove; according to the water pump, the sliding block is arranged on the guide rod, so that the clamping block is driven by the sliding block and pulled by the guide rod at the same time, the clamping block can further clamp a flange of an external connecting pipe while clamping the external connecting pipe, and the situation that the external connecting pipe externally connected with a backflow pipe, a liquid inlet pipe or a liquid discharging pipe falls off due to vibration generated when the water pump is started is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodialysis, in particular to a micro electrodialysis experimental machine. Background Technique

[0002] An electrodialysis test machine is an experimental device used for researching and testing the electrodialysis process. Electrodialysis is a technology that separates ions in a solution by using the action of an electric field. It places ion exchange membranes between two electrodes, enabling the ions in the solution to selectively pass through the membranes under the drive of the electric field, thereby achieving the separation and concentration of ions. The electrodialysis test machine is a very important experimental device, which can help researchers and engineers better understand the electrodialysis process, develop new applications, and improve the performance and efficiency of electrodialysis technology.

[0003] According to an announced small electrodialysis experimental machine (publication number: CN220478544U), in the above application, the body cover door opens from the rear, and liquid leakage may occur during the experiment. Moreover, when adding external materials, during the connection of the external material addition pipeline, the vibration generated by the startup of the internal water pump may cause the pipeline to fall off, thus affecting the experiment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a micro electrodialysis experimental machine to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A micro electrodialysis experimental machine, including a housing, a sampling valve, and an external connection pipe. A top cover is provided at the top of the housing, a sealing strip is provided at the edge of the top cover, a water tank is provided on the inner wall of the housing. There are three compartments in the water tank, namely a feed liquid chamber, a polar water chamber, and a concentrated water chamber. A DC power supply is provided on the surface of the housing, a water pump is fixedly connected to the inner wall of the housing, the number of water pumps is three, a water pump switch is provided on the surface of the housing, and a connection part for stable connection of the pipeline is provided on the surface of the housing. The connection part includes:

[0006] A return pipe, the return pipe penetrates and is fixedly connected to the housing, and the number of return pipes is three. The three return pipes respectively penetrate the feed liquid chamber, the polar water chamber, and the concentrated water chamber in the water tank. An inlet pipe and a drain pipe also penetrate and are fixedly connected to the surface of the housing. The inlet pipe is respectively connected to the three water pumps. Connection hoses penetrate and are fixedly connected to the bottoms of the three compartments in the water tank. One end of the connection hose away from the water tank is fixedly connected to the water pump. The drain pipe penetrates and is fixedly connected to the bottom of the water tank, the number of drain pipes is three, and the three drain pipes respectively penetrate the feed liquid chamber, the polar water chamber, and the concentrated water chamber in the water tank.

[0007] Preferably, one end of the reflux pipe, the liquid inlet pipe and the liquid discharge pipe located outside the housing penetrates and is fixedly connected with a connecting plate. During the electrodialysis experiment, the water pump is turned on through the water pump switch, and the containers of the corresponding feed liquid, electrode water and concentrated water are connected to the connecting plate through an external connecting pipe. Align the connecting plate and insert the external connecting pipe into the connecting plate. A through groove is formed on the side surface of the connecting plate, a fixing plate is fixedly connected to the inner wall of the connecting plate, and a rotating plate is rotatably connected to the inner wall of the connecting plate.

[0008] Preferably, an arc-shaped groove is formed on the surface of the rotating plate, a sliding groove is formed on the surface of the fixing plate, and a limiting groove and a guiding groove are formed inside the sliding groove.

[0009] Preferably, a slider penetrates and is slidably connected inside the sliding groove, and a guiding rod penetrates and is slidably connected inside the slider. When the rotating plate rotates, it will drive the arc-shaped groove to abut against the sliding rod, so that the sliding rod drives the slider to slide in the sliding groove.

[0010] Preferably, a clamping block penetrates and is slidably connected inside the slider. The guiding rod slides along the guiding groove, and then the guiding rod pulls the clamping block, so that the clamping block is driven by the slider and also pulled by the guiding rod. The clamping block is penetrated and fixedly connected by the guiding rod, the guiding rod penetrates the guiding groove, a sliding rod is fixedly connected to the surface of the slider, and the sliding rod penetrates the arc-shaped groove.

[0011] Preferably, a dial rod and a ratchet tooth are fixedly connected to the surface of the rotating plate. When the rotating plate rotates, it will drive the ratchet tooth to abut against the limiting tooth, so that the limiting tooth is contracted by the inclined surface of the ratchet tooth. The dial rod penetrates the through groove.

[0012] Preferably, a U-shaped frame is fixedly connected to the surface of the connecting plate. A pull rod penetrates and is slidably connected inside the U-shaped frame. A limiting tooth is fixedly connected to one end of the pull rod close to the ratchet tooth, and a spring is fixedly connected between the limiting tooth and the inner side of the U-shaped frame.

[0013] Compared with the prior art, the present utility model provides a micro electrodialysis experiment machine, which has the following

[0014] Beneficial effects:

[0015] 1. In this micro electrodialysis experiment machine, when the rotating plate rotates, it will drive the arc-shaped groove to abut against the sliding rod, so that the sliding rod drives the slider to slide in the sliding groove. When the slider slides in the sliding groove, the guiding rod will slide along the guiding groove, and then the guiding rod pulls the clamping block, so that the clamping block is driven by the slider and also pulled by the guiding rod. Thus, while the clamping block clamps the external connecting pipe, it can also clamp the flange of the external connecting pipe, avoiding the external connecting pipes of the reflux pipe, the liquid inlet pipe or the liquid discharge pipe from falling off due to the vibration generated when the water pump starts.

[0016] 2. The micro electrodialysis experimental machine is sealed through the flip-top cover at the top and the sealing strip. During the experiment, not only its sealing performance is ensured, but it is more convenient and stable compared with the side-opening door. All external connections adopt quick-install connectors, which are convenient for installation and disassembly, ensuring aesthetics and facilitating maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the interior of the housing of the present utility model;

[0019] Figure 3 is a sectional structural schematic diagram of the housing and the water tank of the present utility model;

[0020] Figure 4 is a structural schematic diagram of the connection plate of the present utility model;

[0021] Figure 5 is an unfolded structural schematic diagram of the connection plate of the present utility model;

[0022] Figure 6 is a sectional structural schematic diagram of the fixing plate of the present utility model;

[0023] Figure 7 is an enlarged structural schematic diagram of the U-shaped frame of the present utility model.

[0024] In the figure: 1. Housing; 2. Connection part; 21. Return pipe; 23. Connection plate; 24. Through groove; 25. Fixing plate; 26. Rotating plate; 27. Arc groove; 28. Sliding groove; 29. Limiting groove; 210. Guide groove; 211. Slide block; 212. Guide rod; 213. Clamping block; 214. Slide rod; 215. Lever; 216. Ratchet tooth; 217. U-shaped frame; 218. Pull rod; 219. Limiting tooth; 220. Spring; 221. Liquid inlet pipe; 222. Connection hose; 223. Drain pipe; 3. Top cover; 4. Sealing strip; 5. Water tank; 6. DC power supply; 7. Water pump; 8. Water pump switch; 9. Sampling valve; 10. External connection pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As Figures 1-7As shown in the figure, the present utility model provides a technical solution: a micro electrodialysis experiment machine, which includes a housing 1, a sampling valve 9 and an external connecting pipe 10. A top cover 3 is provided at the top of the housing 1, a sealing strip 4 is provided at the edge of the top cover 3, a water tank 5 is provided on the inner wall of the housing 1, and three compartments are provided in the water tank 5, namely a feed liquid chamber, an electrode water chamber and a concentrated water chamber. A DC power supply 6 is provided on the surface of the housing 1, a water pump 7 is fixedly connected to the inner wall of the housing 1, and the number of water pumps 7 is three. A water pump switch 8 is provided on the surface of the housing 1, and a connecting part 2 for stable connection of pipes is provided on the surface of the housing 1. The connecting part 2 includes: a return pipe 21, a connecting disc 23, a through groove 24, a fixing plate 25, a rotating plate 26, an arc groove 27, a sliding groove 28, a limiting groove 29, a guiding groove 210, a sliding block 211, a guiding rod 212, a clamping block 213, a sliding rod 214, a dial rod 215, a ratchet tooth 216, a U-shaped frame 217, a pull rod 218, a limiting tooth 219, a spring 220, a liquid inlet pipe 221, a connecting hose 222 and a liquid discharge pipe 223.

[0026] The return pipe 21 penetrates through the housing 1 and is fixedly connected, and the number of the return pipes 21 is three. The three return pipes 21 respectively penetrate through the feed liquid chamber, the electrode water chamber and the concentrated water chamber in the water tank 5. The liquid inlet pipe 221 and the liquid discharge pipe 223 also penetrate through and are fixedly connected to the surface of the housing 1. The liquid inlet pipe 221 is respectively connected to the three water pumps 7. The bottoms of the three compartments in the water tank 5 are all penetrated through and fixedly connected with connecting hoses 222. One end of the connecting hose 222 away from the water tank 5 is fixedly connected to the water pump 7. The liquid discharge pipe 223 penetrates through the bottom of the water tank 5 and is fixedly connected, and the number of the liquid discharge pipes 223 is three. The three liquid discharge pipes 223 respectively penetrate through the feed liquid chamber, the electrode water chamber and the concentrated water chamber in the water tank 5. One ends of the return pipe 21, the liquid inlet pipe 221 and the liquid discharge pipe 223 located outside the housing 1 penetrate through and are fixedly connected with a connecting disc 23. When conducting an electrodialysis experiment, the water pump 7 is turned on through the water pump switch 8, and the corresponding feed liquid, electrode water and concentrated water containers are connected to the connecting disc 23 through the external connecting pipe 10. Align the connecting disc 23 and insert the external connecting pipe 10 into the connecting disc 23. A through groove 24 is opened on the side surface of the connecting disc 23, a fixing plate 25 is fixedly connected to the inner wall of the connecting disc 23, and a rotating plate 26 is rotatably connected to the inner wall of the connecting disc 23. An arc groove 27 is opened on the surface of the rotating plate 26, a sliding groove 28 is opened on the surface of the fixing plate 25, and a limiting groove 29 and a guiding groove 210 are opened inside the sliding groove 28. A sliding block 211 penetrates through and is slidably connected to the inside of the sliding groove 28, a guiding rod 212 penetrates through and is slidably connected to the inside of the sliding block 211. When the rotating plate 26 rotates, it will drive the arc groove 27 to abut against the sliding rod 214, so that the sliding rod 214 drives the sliding block 211 to slide in the sliding groove 28. When the sliding block 211 slides in the sliding groove 28, the guiding rod 212 will slide along the guiding groove 210.

[0027] A clamping block 213 penetrates and is slidably connected to the inner side of the slider 211. The guide rod 212 slides along the guide groove 210, so that the guide rod 212 pulls the clamping block 213, so that the clamping block 213 is pulled by the guide rod 212 while being driven by the slider 211, so that the clamping block 213 can clamp the flange of the external connecting pipe 10 while clamping the external connecting pipe 10. The clamping block 213 is penetrated and fixedly connected by the guide rod 212, and the guide rod 212 penetrates the guide groove 210. A sliding rod 214 is fixedly connected to the surface of the slider 211, and the sliding rod 214 penetrates the arc groove 27. The surface of the rotating plate 26 is fixedly connected with a lever 215 and a ratchet 216. The lever 215 is moved to drive the rotating plate 26 to rotate. When the rotating plate 26 rotates, the ratchet 216 is driven to contact the limit tooth 219, so that the limit tooth 219 is contacted and contracted by the inclined surface of the ratchet 216. When the ratchet 216 exceeds the limit tooth 219, the spring 220 pushes the limit tooth 219 to clamp the ratchet 216 to prevent it from resetting. The lever 215 passes through the through slot 24. A U-shaped frame 217 is fixedly connected to the surface of the connecting plate 23. A pull rod 218 is passed through and slidably connected to the inner side of the U-shaped frame 217. The end of the pull rod 218 close to the ratchet 216 is fixedly connected to the limit tooth 219. A spring 220 is fixedly connected between the limit tooth 219 and the inner side of the U-shaped frame 217.

[0028] Based on the above embodiment, when conducting an electrodialysis experiment, the water pump 7 is turned on by the water pump switch 8, and the corresponding containers of feed liquid, polar water and concentrated water are connected to the connecting disk 23 through the external connecting tube 10, the connecting disk 23 is aligned and the external connecting tube 10 is inserted into the connecting disk 23, and then the lever 215 is moved to make the lever 215 drive the rotating plate 26 to rotate. When the rotating plate 26 rotates, it will drive the ratchet 216 to contact the limiting tooth 219, so that the limiting tooth 219 is contracted by the inclined surface of the ratchet 216, and when the ratchet 216 exceeds the limiting tooth 219, the spring 220 will push the limiting tooth 219 to clamp the ratchet 216 to prevent it from resetting, and the rotating plate 26 is rotating. When the slider 211 slides in the slide groove 28, the guide rod 212 will slide along the guide groove 210, thereby causing the guide rod 212 to pull the clamping block 213, so that the clamping block 213 will be pulled by the guide rod 212 while being driven by the slider 211, thereby causing the clamping block 213 to clamp the external connecting pipe 10 while also clamping the flange of the external connecting pipe 10, thereby preventing the water pump 7 from vibrating when starting and causing the external connecting pipe 10 of the external connecting reflux pipe 21, the liquid inlet pipe 221 or the liquid discharge pipe 223 to fall off.

[0029] And it is sealed by the flip-top cover 3 at the top and the sealing strip 4. During the experiment, not only its sealing performance is ensured, but it is also more convenient and stable compared with the side-opening door. All external parts adopt quick-install joints, which are convenient for installation and disassembly, and facilitate inspection and maintenance while ensuring the aesthetics.

[0030] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements that do not depart from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A micro electrodialysis experimental machine, comprising a housing (1), a sampling valve (9) and an external connecting pipe (10), wherein a top cover (3) is arranged at the top of the housing (1), a sealing strip (4) is arranged at the edge of the top cover (3), a water tank (5) is arranged on the inner wall of the housing (1), three compartments, namely a feed liquid chamber, a polar water chamber and a concentrated water chamber, are arranged in the water tank (5), a DC power supply (6) is arranged on the surface of the housing (1), and it is characterized in that: The inner wall of the housing (1) is fixedly connected with water pumps (7), and the number of the water pumps (7) is three groups. A water pump switch (8) is arranged on the surface of the housing (1). A connecting part (2) for stable connection of pipelines is arranged on the surface of the housing (1). The connecting part (2) includes: a return pipe (21), the return pipe (21) penetrates through the housing (1) and is fixedly connected, and the number of the return pipes (21) is three groups. The three groups of return pipes (21) respectively penetrate through the liquid chamber, the polar water chamber and the concentrated water chamber in the water tank (5). The surface of the housing (1) also penetrates through and is fixedly connected with a liquid inlet pipe (221) and a liquid discharge pipe (223). The liquid inlet pipe (221) is respectively connected with the three groups of water pumps (7). The bottoms of the three compartments in the water tank (5) all penetrate through and are fixedly connected with connecting hoses (222). One end of the connecting hose (222) far away from the water tank (5) is fixedly connected with the water pump (7). The liquid discharge pipe (223) penetrates through the bottom of the water tank (5) and is fixedly connected. The number of the liquid discharge pipes (223) is three groups, and the three groups of liquid discharge pipes (223) respectively penetrate through the liquid chamber, the polar water chamber and the concentrated water chamber in the water tank (5).

2. The micro electrodialysis experiment machine according to claim 1, characterized in that: One ends of the return pipe (21), the liquid inlet pipe (221) and the liquid discharge pipe (223) located outside the housing (1) penetrate through and are fixedly connected with a connecting disc (23). A through groove (24) is formed in the side surface of the connecting disc (23). A fixing plate (25) is fixedly connected to the inner wall of the connecting disc (23). A rotating plate (26) is rotatably connected to the inner wall of the connecting disc (23).

3. A micro electrodialysis experimental machine according to claim 2, characterized in that: An arc-shaped groove (27) is formed in the surface of the rotating plate (26). A sliding groove (28) is formed in the surface of the fixing plate (25). A limiting groove (29) and a guiding groove (210) are formed in the inner side of the sliding groove (28).

4. A micro electrodialysis experiment machine according to claim 3, characterized in that: A sliding block (211) penetrates through and is slidably connected to the inner side of the sliding groove (28). A guiding rod (212) penetrates through and is slidably connected to the inner side of the sliding block (211).

5. A micro-electrodialysis experimental machine according to claim 4, characterized in that: A clamping block (213) penetrates through and is slidably connected to the inner side of the sliding block (211). The clamping block (213) is penetrated by the guiding rod (212) and fixedly connected. The guiding rod (212) penetrates through the guiding groove (210). A sliding rod (214) is fixedly connected to the surface of the sliding block (211). The sliding rod (214) penetrates through the arc-shaped groove (27).

6. The micro-electrodialysis experimental machine according to claim 2, characterized in that: A dial rod (215) and a ratchet tooth (216) are fixedly connected to the surface of the rotating plate (26). The dial rod (215) penetrates through the through groove (24).

7. A micro-electrodialysis experimental machine according to claim 6, characterized in that: A U-shaped frame (217) is fixedly connected to the surface of the connecting disc (23). A pull rod (218) penetrates through and is slidably connected to the inner side of the U-shaped frame (217). A limiting tooth (219) is fixedly connected to one end of the pull rod (218) close to the ratchet tooth (216). A spring (220) is fixedly connected between the limiting tooth (219) and the inner side of the U-shaped frame (217).

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