Filtering device for mineral water production

Abstract

The application belongs to the technical field of water filtering treatment, and particularly relates to a filtering device for mineral water production, which comprises two treatment chambers and a filtering chamber. The filtering chamber is arranged on the right side of the treatment chamber, a connecting hole is arranged between the filtering chamber and the treatment chamber, a water inlet pipe is arranged on the right side of the filtering chamber, a water outlet pipe is arranged on the left side of the treatment chamber, a filter plate is arranged in the connecting hole, and a first shielding cover is arranged on the right side of the filter plate. In the application, the filter plate is backwashed by the movable frame and the spray head, and the adhered impurities are quickly removed. During the cleaning process, the filter plate on the other side always maintains a normal filtering state, and the filter plate cleaning can be completed without suspending the whole filtering process. Therefore, the application can effectively avoid the decrease of filtering efficiency caused by the filter plate blockage, realize the online backwashing and cleaning of the filter plate, and improve the filtering efficiency and the equipment operation stability while ensuring the continuous filtering of the mineral water.

Description

Technical Field

[0001] This invention belongs to the field of water filtration technology, specifically a filtration device for mineral water production. Background Technology

[0002] Mineral water typically originates from naturally flowing or artificially exposed, uncontaminated mineral water deep underground. It naturally contains certain amounts of mineral salts, trace elements, and free carbon dioxide gas. However, excessive intake of mineral water with high concentrations of free carbon dioxide may affect gastric juice secretion, digestive function, and bile formation and secretion, thereby disrupting the body's acid-base balance. Therefore, during mineral water processing, filtration devices must be used to remove any suspended particulate matter, heavy metal ions, harmful microorganisms, and other organic or inorganic contaminants to ensure water purity and drinking safety.

[0003] In existing filtration devices, filter plates are commonly used to physically intercept impurities. However, after prolonged use, impurities easily accumulate on the surface of the filter plates, leading to clogging and significantly reducing filtration efficiency. To solve this problem, the filter plates usually need to be cleaned after the device is shut down, typically by backwashing. This method also severely impacts overall filtration efficiency and production continuity. Therefore, it is necessary to design a filtration device for mineral water production to address these issues. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a filtration device for mineral water production. This invention primarily addresses the problem that existing filtration devices require shutdown for cleaning the filter plates, thus affecting the filtration efficiency of mineral water.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a filtration device for mineral water production, comprising two treatment chambers and a filtration chamber; the filtration chamber is located on the right side of the treatment chamber, and a connection hole is provided between the filtration chamber and the treatment chamber; a water inlet pipe is connected to the right side of the filtration chamber, and a drain pipe is connected to the left side of the treatment chamber; a filter plate is provided in the connection hole; a first shield is provided on the right side of the filter plate, and a second shield is provided on the left side of the filter plate; two connecting devices are installed on each of the first and second shields; a movable plate is installed on the four connecting devices corresponding to one of the treatment chambers; an extension frame is installed on the side of the movable plate; a lead screw is internally threaded onto the extension frame; and a drive motor is installed at the bottom end of the lead screw. The machine has a drive motor installed outside the treatment room. An electric push rod is slidably connected inside the second shield and is mounted on a movable plate. A movable frame is installed at the bottom of the electric push rod. A nozzle is connected to the side of the movable frame. A middle pipe is connected to the movable frame. A connecting pump is connected to the end of the middle pipe. A suction pipe is connected to the side of the connecting pump and is located in another treatment room. A first guide rod is slidably connected inside the movable frame and is installed on the inner wall of the second shield. Two guide sleeves are installed outside both the first and second shields. A second guide rod is slidably connected inside the guide sleeves. A support plate is installed at the top of the second guide rod and is installed in the filtration room. The second guide rod is also installed in the filtration room.

[0006] As a further description of the above technical solution: a scraper is installed on the inner wall of the first shield, the scraper is attached to the surface of the filter plate, and both the first shield and the second shield cover the outer side of the filter plate.

[0007] As a further description of the above technical solution: the connecting device includes a connecting column, which is installed under the movable plate. A connecting cylinder is slidably connected to the outside of the connecting column. The connecting cylinder is installed on the first shield and the second shield. A first spring is installed on the bottom wall of the inner wall of the connecting cylinder, and the first spring is installed at the bottom end of the connecting column.

[0008] As a further description of the above technical solution: a drain hole is provided on the bottom wall of the filter chamber corresponding to the position of the first shield, a movable cavity is provided on the inner wall of the drain hole, a drain shield assembly is installed in the drain hole and the movable cavity, and a pressing rod is installed on the side of the extension frame corresponding to the position of the drain shield assembly. The pressing rod is used to press the drain shield assembly to open.

[0009] As a further description of the above technical solution: the drainage shielding assembly includes a first perforated plate installed in the drainage hole, a second perforated plate slidably connected to the movable cavity below the first perforated plate, the water holes of the first perforated plate and the water holes of the second perforated plate being offset, a crossbar installed on the side of the second perforated plate, the crossbar being slidably connected to the filter chamber, a contact block installed at the end of the crossbar outside the filter chamber, the upper surface of the contact block being an inclined surface, a pressing rod being used to press the inclined surface of the contact block, a second spring being sleeved on the crossbar, the two ends of the second spring being fixedly connected to the opposite surfaces of the filter chamber and the contact block, respectively.

[0010] As a further description of the above technical solution: the contact block is provided with a compression inflation device installed outside the filter chamber on the side near the filter chamber. The compression inflation device is connected to an air pipe. The opposite sides of the first shield and the second shield are provided with expansion airbags. The expansion airbags are U-shaped and are connected to the end of the air pipe. The lower surfaces of the first shield and the second shield are provided with sealing gaskets. The two sealing gaskets are respectively attached to the inner bottom wall of the treatment chamber and the filter chamber.

[0011] As a further description of the above technical solution: the extrusion inflation device includes an air storage frame installed outside the filter room, a piston plate slidably connected inside the air storage frame, a piston rod installed on the side of the piston plate, the piston rod slidably connected inside the air storage frame, a connecting frame installed at the end of the piston rod outside the air storage frame, the connecting frame fitting against the outside of the contact block, the air pipe communicating with the air storage frame, and a third spring installed on the side of the piston plate on the inner wall of the air storage frame.

[0012] As a further description of the above technical solution: the filter plate is vertically slidably connected to the inner wall of the connection hole, a movable rod is installed on the filter plate, the movable rod is slidably connected to the processing chamber, a bearing seat is installed at the top of the movable rod, the bearing seat is installed on the upper surface of the processing chamber, and a vibration motor is installed on the bearing seat.

[0013] As a further description of the above technical solution: two rubber strips are installed under the filter plate, and two guide strips are installed on the inner wall of the connecting hole. The two guide strips are respectively attached to the left and right sides of the filter plate. The upper surface of the guide strip is set as an inclined surface to guide the impurities that fall off the surface of the filter plate obliquely downward away from the filter plate. A sealing ring is provided on the outside of the filter plate to fit with the guide strips and the connecting hole.

[0014] As a further description of the above technical solution: the vertical movement height of the guide sleeve is greater than the height of the filter plate.

[0015] The beneficial effects of this invention are as follows: 1. In this invention, during mineral water filtration, the drive motor rotates the lead screw, causing the extension frame, moving plate, first shield, and second shield to move upwards synchronously. The filter plate is in normal filtration mode. The water to be treated enters the treatment chamber after being filtered by the filter plate, achieving continuous filtration. When a large amount of impurities accumulate on the surface of the filter plate, causing local blockage, the drive motor on the corresponding side drives the shield to move downwards, isolating that filter plate area from the main filtration channel and forming an independent cleaning space. Subsequently, a pump is connected to draw clean filtered water from the other side of the treatment chamber and sprays it onto the surface of the filter plate through the movable frame and nozzles to backwash the filter plate, quickly removing attached impurities. During the cleaning process, the filter plate on the other side remains in normal filtration mode, and the filter plate cleaning can be completed without pausing the entire filtration process. Therefore, this invention can effectively avoid the decrease in filtration efficiency caused by filter plate blockage, realize online backwashing cleaning of the filter plate, and improve filtration efficiency and equipment operation stability while ensuring continuous filtration of mineral water.

[0016] 2. When the filter plate needs cleaning, this invention uses a drive motor to rotate a lead screw, causing the extension frame and moving plate to move downwards. This, in turn, moves the connecting column, connecting cylinder, and the first and second shielding covers downwards until they are flush with the bottom walls of the filter chamber and treatment chamber, thus sealing off the area where the filter plate is located. After the shielding covers are closed, the extension frame continues to move downwards, pushing the contact block, crossbar, and second perforated plate laterally via a pressing rod. This aligns the water holes on the second perforated plate with the water holes on the first perforated plate, thereby opening the drain holes. Since the drain holes only open after the shielding covers are closed, the problem of premature discharge of impurities in the unisolated state is avoided, improving the reliability of the drainage process. Furthermore, the first and second perforated plates use a staggered sliding opening method, providing support for the water above before opening, ensuring structural stability. Therefore, this invention utilizes the coordinated operation of the shielding cover closure and the drain hole opening to achieve a process of isolation before drainage, ensuring that wastewater containing impurities can be smoothly discharged during the cleaning process, improving the filter plate cleaning efficiency and sewage discharge effect, and ensuring the stability of the device operation.

[0017] 3. In this invention, during the downward movement of the first and second shielding covers to seal the filter plate area, the extension frame continues to drive the extrusion rod to move the contact block. The contact block then drives the piston rod and piston plate to move through the connecting frame, causing the piston plate to compress the gas in the gas storage frame and deliver the gas to the inside of the expansion bladder. As the gas continues to enter, the expansion bladders located between the first shielding cover and the filter chamber, and between the second shielding cover and the treatment chamber, gradually expand and tightly fit against the corresponding side walls, thereby sealing and compensating for the gaps between the first and second shielding covers and the housing, improving the sealing performance of the sealed area. Therefore, this invention utilizes the coordinated movement of the shielding cover downward and the expansion of the bladder to automatically form a better-sealed isolation space before the filter plate is cleaned, effectively avoiding water leakage or crossflow during backwashing, improving the isolation effect between the filter plate and the external filtration area, thus ensuring that the backwashing action is concentrated on the surface of the filter plate, improving the cleaning effect and efficiency of the filter plate. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the filter chamber in this invention; Figure 3 This is the present invention. Figure 2 Enlarged structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the front cross-sectional structure of the processing chamber of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged structural diagram of section B; Figure 6 This is a three-dimensional structural schematic diagram of the first shield in this invention; Figure 7 This is a three-dimensional structural diagram of the first shield in this invention, viewed from below. Figure 8 This is a schematic diagram of the three-dimensional cross-section of the first shield and the second shield in this invention; Figure 9 In this invention Figure 8 Enlarged structural diagram of section C; Figure 10 In this invention Figure 8 Enlarged structural diagram of section D in the middle; Figure 11 This is a side-view three-dimensional structural schematic diagram of the first shield in this invention; Figure 12 This is a three-dimensional structural diagram of the filter plate in this invention; Figure 13 This is a schematic diagram of the three-dimensional cross-sectional structure of the drainage shielding component in this invention; Figure 14 This is the present invention. Figure 13 Enlarged structural diagram of section E in the middle.

[0020] In the diagram: 1. Treatment chamber; 2. Filtration chamber; 3. Inlet pipe; 4. Drain pipe; 5. Connection hole; 6. Filter plate; 7. First shield; 8. Second shield; 9. Connecting device; 91. Connecting column; 92. Connecting cylinder; 93. First spring; 10. Moving plate; 11. Extension frame; 12. Lead screw; 13. Drive motor; 14. Electric push rod; 15. Movable frame; 16. Nozzle; 17. Intermediate pipe; 18. Connecting pump; 19. Suction pipe; 20. Scraper; 21. First guide rod; 22. Second guide rod; 23. Guide sleeve; 24. 25. Support plate; 26. Drainage hole; 27. Movable cavity; 28. Drainage shielding assembly; 291. First perforated plate; 202. Second perforated plate; 213. Crossbar; 24. Contact block; 25. Second spring; 26. Extrusion rod; 277. Extrusion inflation device; 28. Air storage frame; 292. Piston plate; 293. Piston rod; 294. Connecting frame; 295. Third spring; 30. Air pipe; 31. Inflatable airbag; 32. Rubber strip; 33. Guide strip; 34. Sealing ring; 35. Movable rod; 36. Bearing seat; 37. Vibration motor. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: like Figures 1 to 14As shown, a filtration device for mineral water production includes two processing chambers 1 and a filtration chamber 2. The filtration chamber 2 is located on the right side of the processing chamber 1, and a connection hole 5 is provided between the filtration chamber 2 and the processing chamber 1. A water inlet pipe 3 is connected to the right side of the filtration chamber 2, and a drain pipe 4 is connected to the left side of the processing chamber 1. A filter plate 6 is provided inside the connection hole 5. A first shield 7 is provided on the right side of the filter plate 6, and a second shield 8 is provided on the left side of the filter plate 6. Two connecting devices 9 are installed on both the first shield 7 and the second shield 8. A movable plate 10 is installed on the four connecting devices 9 corresponding to one of the processing chambers 1. An extension frame 11 is installed on the side of the movable plate 10. A lead screw 12 is internally threaded into the extension frame 11, and a drive motor 13 is installed at the bottom end of the lead screw 12. The drive motor 13 is installed in the processing chamber 1. Outside, an electric push rod 14 is slidably connected inside the second shield 8. The electric push rod 14 is mounted on the movable plate 10. A movable frame 15 is mounted at the bottom of the electric push rod 14. A nozzle 16 is connected to the side of the movable frame 15. An intermediate pipe 17 is connected to the movable frame 15. A connecting pump 18 is connected to the end of the intermediate pipe 17. A suction pipe 19 is connected to the side of the connecting pump 18. The suction pipe 19 is located in another processing chamber 1. A first guide rod 21 is slidably connected inside the movable frame 15. The first guide rod 21 is mounted on the inner wall of the second shield 8. Two guide sleeves 23 are installed on the outside of both the first shield 7 and the second shield 8. A second guide rod 22 is slidably connected inside the guide sleeve 23. A support plate 24 is mounted at the top of the second guide rod 22. The support plate 24 is installed in the filter chamber 2. The second guide rod 22 is installed in the filter chamber 2.

[0023] When this device is needed for filtration, the controller controls the drive motor 13 to operate, which in turn drives the lead screw 12 to rotate. This causes the lead screw 12 to move the extension frame 11 and the moving plate 10 upwards. Simultaneously, the moving plate 10 moves upwards, driving the first shield 7 and the second shield 8 upwards via the connecting device 9, until the first shield 7 and the second shield 8 are positioned above the filter plate 6. At this point, the controller stops the drive motor 13, and water is directly introduced into the filter chamber 2 through the inlet pipe 3. The water in the filter chamber 2 passes through the filter plate 6 to filter impurities before entering the treatment chamber 1. After prolonged use, a large amount of impurities accumulates on the right side of the front filter plate 6, causing partial blockage and reduced efficiency. In this case, the controller controls the front drive motor 13 to operate, causing the drive motor 13 to rotate the lead screw 12, thereby... The lead screw 12 drives the extension frame 11 and the moving plate 10 to move downwards. At this time, the connecting column 91 and the connecting cylinder 92 drive the first shield 7 and the second shield 8 to move downwards until the first shield 7 and the second shield 8 are attached to the bottom wall of the filter chamber 2 and the treatment chamber 1. The controller controls the electric push rod 14 and the connecting pump 18 on the left side to work. While the connecting pump 18 is working, it draws the filtered water in the rear treatment chamber 1 through the suction pipe 19 and passes the water into the movable frame 15 through the middle pipe 17. This allows the water in the movable frame 15 to be sprayed onto the left side of the filter plate 6 through the nozzle 16, achieving backwashing and cleaning of the filter plate 6. At least one filter plate 6 is always in the working state of filtration, thus ensuring that the cleaning process of the filter plate 6 does not need to be interrupted. While ensuring the filtration efficiency of mineral water, the cleaning process of the filter plate 6 can be completed efficiently. Furthermore, the filter plate 6 is in a state of being separated and covered by the first shield 7 and the second shield 8. The water flow in the first shield 7 and the second shield 8 is extracted, and then the nozzle 16 is controlled to spray water to achieve backwash cleaning of the filter plate 6. The filter plate 6 is in a state of being isolated from the main filter channel, which can prevent the turbulent water flow from hindering the backwash water flow and ensure the backwash cleaning effect of the filter plate 6.

[0024] like Figures 1 to 3 and Figures 8 to 9 As shown, a scraper 20 is installed on the inner wall of the first shield 7, and the scraper 20 is attached to the surface of the filter plate 6. The first shield 7 and the second shield 8 both cover the outer side of the filter plate 6.

[0025] When the drive motor 13 drives the lead screw 12 to rotate, it controls the first shield 7 to move downward. As the first shield 7 moves downward, it drives the scraper 20 to move. The scraper 20 scrapes away the impurities on the surface of the filter plate 6, thereby cleaning the impurities and dirt accumulated on the right side of the filter plate 6. Combined with the backwashing effect of the water flow on the inside of the mesh of the filter plate 6, the cleaning effect of the filter plate 6 is even better.

[0026] like Figures 2 to 3 As shown, the connecting device 9 includes a connecting post 91, which is installed under the movable plate 10. A connecting cylinder 92 is slidably connected to the outside of the connecting post 91. The connecting cylinder 92 is installed on the first shield 7 and the second shield 8. A first spring 93 is installed on the inner bottom wall of the connecting cylinder 92. The first spring 93 is installed at the bottom end of the connecting post 91.

[0027] When the filter plate 6 needs to be cleaned, the drive motor 13 is controlled by the controller to run. The drive motor 13 drives the lead screw 12 to rotate, which in turn causes the lead screw 12 to move the extension frame 11 and the moving plate 10 downward. This causes the moving plate 10 to move the connecting column 91 and the first spring 93 downward. At this time, the connecting column 91 and the connecting cylinder 92 move the first shield 7 and the second shield 8 downward. When the first shield 7 and the second shield 8 are in contact with the bottom wall of the filter chamber 2 and the treatment chamber 1, the moving plate 10 can continue to move downward by a certain amount. Furthermore, the elastic force of the first spring 93 is applied to the first shield 7 and the second shield 8, ensuring that the pressure is not excessive during the downward movement, while ensuring that the first shield 7 and the second shield 8 are tightly fitted to the bottom wall of the filter chamber 2 and the treatment chamber 1, ensuring the sealing effect between the first shield 7 and the second shield 8 and the bottom wall of the filter chamber 2 and the treatment chamber 1. The first spring 93 provides buffer protection while continuously applying pre-tightening force to the shields; thus ensuring that during the subsequent cleaning process after the filter screen is separated, the water between the first shield 7 and the second shield 8 will not flow with the water between the filter chamber 2 and the treatment chamber 1.

[0028] like Figures 2 to 5 and Figure 13 As shown, a drain hole 25 is provided on the bottom wall of the filter chamber 2 at the position corresponding to the first shield 7. A movable cavity 26 is provided on the inner wall of the drain hole 25. A drain shield assembly 27 is installed in the drain hole 25 and the movable cavity 26. A pressing rod 28 is installed on the side of the extension frame 11 at the position corresponding to the drain shield assembly 27. The pressing rod 28 is used to press the drain shield assembly 27 to open.

[0029] When the filter plate 6 needs cleaning, the controller controls the drive motor 13 to run. The drive motor 13 drives the lead screw 12 to rotate, which in turn causes the lead screw 12 to move the extension frame 11 and the moving plate 10 downward. This causes the moving plate 10 to move the connecting column 91 and the first spring 93 downward. At this time, the connecting column 91 and the connecting cylinder 92 move the first shield 7 and the second shield 8 downward. When the first shield 7 and the second shield 8 are in contact with the bottom wall of the filter chamber 2 and the treatment chamber 1, the moving plate 10 can continue to move downward to a certain extent. At the same time, the first spring 93 is compressed, and the squeezing rod 28 squeezes the drainage shield assembly 27 to open. At this time, the water between the first shield 7 and the second shield 8 is automatically discharged through the drainage hole 25. At the same time, the impurities adhering to the mesh and surface of the filter plate 6 are cleaned off and automatically discharged downward through the drainage hole 25. The process of removing impurities is efficient and simple, which can save the time of manual cleaning of impurities and ensure that the filtration device can maintain a high filtration efficiency.

[0030] like Figure 13 As shown, the drainage shielding assembly 27 includes a first perforated plate 271 installed in the drainage hole 25, and a second perforated plate 272 slidably connected to the movable cavity 26 below the first perforated plate 271. The water holes of the first perforated plate 271 and the water holes of the second perforated plate 272 are misaligned. A crossbar 273 is installed on the side of the second perforated plate 272. The crossbar 273 is slidably connected in the filter chamber 2. A contact block 274 is installed at one end of the crossbar 273 outside the filter chamber 2. The upper surface of the contact block 274 is set as an inclined surface. The pressing rod 28 is used to press the inclined surface of the contact block 274. A second spring 275 is sleeved on the crossbar 273. The two ends of the second spring 275 are fixedly connected to the filter chamber 2 and the opposite surface of the contact block 274, respectively.

[0031] When the filter plate 6 needs cleaning, the controller controls the drive motor 13 to run. The drive motor 13 drives the lead screw 12 to rotate, which in turn causes the lead screw 12 to move the extension frame 11 and the moving plate 10 downwards. This causes the moving plate 10 to move the connecting column 91 and the first spring 93 downwards. At this time, the connecting column 91 and the connecting cylinder 92 move the first shield 7 and the second shield 8 downwards. When the first shield 7 and the second shield 8 are in contact with the bottom wall of the filter chamber 2 and the treatment chamber 1, the moving plate 10 can continue to move downwards by a certain amount. The extension frame 11 drives the extrusion rod 28 to press the contact block 274 to move, thereby causing the contact block 274 to drive the crossbar 273 and the second perforated plate 272 to move, thereby making the water holes between the second perforated plate 272 and the first perforated plate 271 correspond, thus realizing the connection of the drain hole 25. By using the lateral sliding of the first perforated plate 271 and the second perforated plate 272, a considerable support effect is provided for the water on the upper side. Moreover, the drain hole 25 can be opened after the first shield 7 and the second shield 8 close the filter plate 6, making the process of draining water containing impurities smoother.

[0032] Example 2: like Figure 7 and Figures 13 to 14 As shown, a compression inflation device 29 is installed outside the filter chamber 2 on the side of the contact block 274 near the filter chamber 2. An air pipe 30 is connected to the compression inflation device 29. An expansion air bladder 31 is provided on the opposite side of the first shield 7 and the second shield 8. The expansion air bladder 31 is U-shaped and is connected to the end of the air pipe 30. A sealing gasket is provided on the lower surface of the first shield 7 and the second shield 8. The two sealing gaskets are respectively attached to the inner bottom wall of the treatment chamber 1 and the filter chamber 2.

[0033] The extension frame 11 drives the extrusion rod 28 to extrude the contact block 274, which in turn drives the extrusion inflation device 29. The gas in the extrusion inflation device 29 enters the expansion airbag 31, causing the expansion airbag 31 to expand and fit between the treatment chamber 1 and the second shield 8. Another expansion airbag 31 fits between the filter chamber 2 and the first shield 7, thereby ensuring a better sealing effect of the first shield 7 and the second shield 8 on the filter plate 6. This allows the backwashing of the filter plate 6 to be carried out in a separate space, ensuring the cleaning effect of the filter plate 6.

[0034] like Figures 11 to 14 As shown, the compression inflation device 29 includes an air storage frame 291 installed outside the filter chamber 2. A piston plate 292 is slidably connected inside the air storage frame 291. A piston rod 293 is installed on the side of the piston plate 292. The piston rod 293 is slidably connected inside the air storage frame 291. A connecting frame 294 is installed at the end of the piston rod 293 located outside the air storage frame 291. The connecting frame 294 is attached to the outside of the contact block 274. An air pipe 30 is connected to the air storage frame 291. A third spring 295 is installed on the side of the piston plate 292 and located on the inner wall of the air storage frame 291.

[0035] When the extension frame 11 drives the compression rod 28 to compress the contact block 274, the contact block 274 is compressed and moved, which in turn pushes the connecting frame 294 to move. The connecting frame 294 drives the piston rod 293 and the piston plate 292 to move, which in turn causes the piston plate 292 to compress the gas flow in the gas storage frame 291. Then the gas enters the expansion airbag 31 through the air pipe 30, which causes the expansion airbag 31 to expand, making the expansion and contraction of the expansion airbag 31 controllable.

[0036] Example 3: like Figures 8 to 10 and Figure 12 As shown, the filter plate 6 is vertically slidably connected to the inner wall of the connection hole 5. A movable rod 35 is installed on the filter plate 6. The movable rod 35 is slidably connected to the treatment chamber 1. A bearing seat 36 is installed at the top of the movable rod 35. The bearing seat 36 is installed on the upper surface of the treatment chamber 1. A vibration motor 37 is installed on the bearing seat 36.

[0037] When the first shield 7 and the second shield 8 move downwards to fit against the bottom wall of the filter chamber 2 and the treatment chamber 1, the controller controls the vibration motor 37 to run. When the vibration motor 37 is working, the vibration is transmitted to the filter plate 6 through the bearing seat 36 and the movable rod 35. The filter plate 6 is then washed by the backwash water while vibrating, so that the dirt on the surface of the filter plate 6 can be washed off more easily and the cleaning effect is more thorough.

[0038] like Figure 12 As shown, two rubber strips 32 are installed under the filter plate 6, and two guide strips 33 are installed on the inner wall of the connecting hole 5. The two guide strips 33 are respectively attached to the left and right sides of the filter plate 6. The upper surface of the guide strips 33 is set as an inclined surface to guide the impurities that fall off the surface of the filter plate 6 obliquely downward away from the filter plate 6. The filter plate 6 is provided with a sealing ring 34 that fits with the guide strips 33 and the connecting hole 5.

[0039] When the filter plate 6 is slightly vibrated by the vibration motor 37, the filter plate 6 will move slightly in the vertical direction. The rubber strip 32 is used to seal the bottom of the filter plate 6 and the connection hole 5, and ensures that the filter plate 6 can move vertically while maintaining the connection with the connection hole 5. The inclined surface of the guide strip 33 guides the impurities that fall on the surface of the filter plate 6 to the drain hole 25, which facilitates the cleaning and centralized discharge of the debris.

[0040] like Figures 1 to 6 As shown, the vertical movement height of the guide sleeve 23 is greater than the height of the filter plate 6.

[0041] When this device is in operation and filtration is required, the controller controls the drive motor 13 to operate. The drive motor 13 drives the lead screw 12 to rotate, thereby causing the lead screw 12 to move the extension frame 11 and the moving plate 10 upward. Simultaneously, the moving plate 10 moves upward, pulling the connecting cylinder 92 upward via the connecting column 91 and the first spring 93. This causes the connecting cylinder 92 to move the first shield 7 and the second shield 8 upward until they reach the upper side of the filter plate 6. The controller then stops the drive motor 13. Water is then directly introduced into the filter chamber 2 through the inlet pipe 3. After impurities are filtered through the filter plate 6, the water in the filter chamber 2 enters the treatment chamber 1. After long-term use, a large amount of water accumulates on the right side of the front filter plate 6. Impurities cause partial blockage and reduced efficiency of the filter plate 6. In this case, the controller operates the front drive motor 13, which in turn rotates the lead screw 12. The lead screw 12 then moves the extension frame 11 and the moving plate 10 downwards. Simultaneously, the connecting column 91 and connecting cylinder 92 move the first shield 7 and the second shield 8 downwards. As the second shield 8 moves downwards, the scraper 20 adheres to the surface of the filter plate 6 and moves downwards, scraping away impurities on the right side of the filter plate 6. This continues until the first shield 7 and the second shield 8 adhere to the bottom wall of the filter chamber 2 and the processing chamber 1. At this point, the first shield 7 and the second shield 8 cover the filter plate 6, separating the processing chamber 1 and the filter chamber 2 from the filter plate 6. As the extension frame... 11 continues to move downwards, the extrusion rod 28 extrudes the contact block 274, causing it to move. This causes the contact block 274 to move the crossbar 273 and the second perforated plate 272, thus aligning the water holes between the second perforated plate 272 and the first perforated plate 271, thereby connecting the drain hole 25. Subsequently, the water between the first shield 7 and the second shield 8 is discharged downwards through the drain hole 25. As the contact block 274 is extruded and moved, it pushes the connecting frame 294, piston rod 293, and piston plate 292 to move, causing the piston plate 292 to compress the gas flow in the gas storage frame 291. The gas enters the expansion bladder 31 through the air pipe 30, causing the expansion bladder 31 to expand and adhere to the space between the processing chamber 1 and the second shield 8. Another expansion bladder 31 adheres to the space between the processing chamber 1 and the second shield 8. Between the filter chamber 2 and the first shield 7, the controller then stops the drive motor 13 and simultaneously controls the electric push rod 14 and the connecting pump 18 on the left side to operate. While the connecting pump 18 is operating, it draws filtered water from the rear treatment chamber 1 through the suction pipe 19 and directs the water through the intermediate pipe 17 into the movable frame 15. This causes the water in the movable frame 15 to be sprayed onto the left side of the filter plate 6 through the nozzle 16, achieving backwashing and cleaning of the filter plate 6. Impurities falling out of the filter holes in the filter plate 6 are discharged directly downwards through the drain hole 25. Then, the controller stops the connecting pump 18 and the electric push rod 14. At this point, the rear filter plate 6 is not blocked and can still maintain water filtration. After cleaning the filter plate 6,The controller controls the drive motor 13 to operate, which in turn drives the lead screw 12 to rotate. This leads to the lead screw 12 moving the extension frame 11 and the moving plate 10 upwards. Simultaneously, the moving plate 10, through the connecting column 91 and the first spring 93, pulls the connecting cylinder 92 upwards. This, in turn, causes the connecting cylinder 92 to move the first shield 7 and the second shield 8 upwards until they reach the top of the filter plate 6. At this point, the controller stops the drive motor 13. When a filter plate 6 becomes clogged, the controller activates the corresponding drive motor 13, and the process is repeated to clean the filter plate 6, ensuring that at least one filter plate 6 is always in operation.

[0042] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A filtration device for mineral water production, comprising two treatment chambers (1) and a filtration chamber (2); characterized in that: The filter chamber (2) is located on the right side of the treatment chamber (1). A connection hole (5) is provided between the filter chamber (2) and the treatment chamber (1). A water inlet pipe (3) is connected to the right side of the filter chamber (2), and a drain pipe (4) is connected to the left side of the treatment chamber (1). A filter plate (6) is provided in the connection hole (5). A first shield (7) is provided on the right side of the filter plate (6), and a second shield (8) is provided on the left side of the filter plate (6). Two connecting devices (9) are installed on both the first shield (7) and the second shield (8). A movable plate (10) is installed on the four connecting devices (9) corresponding to one of the treatment chambers (1). An extension frame (11) is installed on the side of the movable plate (10). A screw rod (12) is threaded into the extension frame (11). A drive motor (13) is installed at the bottom end of the screw rod (12). The drive motor (13) is installed outside the treatment chamber (1). An electric motor is slidably connected inside the second shield (8). A push rod (14) is mounted on a movable plate (10). A movable frame (15) is mounted at the bottom of the electric push rod (14). A nozzle (16) is connected to the side of the movable frame (15). An intermediate pipe (17) is connected to the movable frame (15). A connecting pump (18) is connected to the end of the intermediate pipe (17). A suction pipe (19) is connected to the side of the connecting pump (18). The suction pipe (19) is located in another processing chamber (1). The movable frame (15) is slidably connected to a first guide rod (21), which is installed on the inner wall of the second shield (8). Two guide sleeves (23) are installed on the outside of the first shield (7) and the second shield (8). A second guide rod (22) is slidably connected inside the guide sleeve (23). A support plate (24) is installed at the top of the second guide rod (22). The support plate (24) is installed inside the filter chamber (2). The second guide rod (22) is installed inside the filter chamber (2).

2. The filtration device for mineral water production according to claim 1, characterized in that: The inner wall of the first shield (7) is equipped with a scraper (20), which is attached to the surface of the filter plate (6). The first shield (7) and the second shield (8) are both covered on the outside of the filter plate (6).

3. A filtration device for mineral water production according to claim 2, characterized in that: The connecting device (9) includes a connecting column (91), which is installed under the movable plate (10). A connecting cylinder (92) is slidably connected to the outside of the connecting column (91). The connecting cylinder (92) is installed on the first shield (7) and the second shield (8). A first spring (93) is installed on the bottom wall of the inner wall of the connecting cylinder (92). The first spring (93) is installed at the bottom end of the connecting column (91).

4. A filtration device for mineral water production according to claim 3, characterized in that: The bottom wall of the filter chamber (2) is provided with a drain hole (25) at the position corresponding to the first shield (7). The inner wall of the drain hole (25) is provided with a movable cavity (26). A drain shield assembly (27) is installed in the drain hole (25) and the movable cavity (26). A squeeze rod (28) is installed on the side of the extension frame (11) at the position corresponding to the drain shield assembly (27). The squeeze rod (28) is used to press the drain shield assembly (27) to open.

5. A filtration device for mineral water production according to claim 4, characterized in that: The drainage shielding assembly (27) includes a first perforated plate (271) installed in the drainage hole (25), and a second perforated plate (272) slidably connected in the movable cavity (26) below the first perforated plate (271). The water holes of the first perforated plate (271) and the water holes of the second perforated plate (272) are misaligned. A crossbar (273) is installed on the side of the second perforated plate (272). The crossbar (273) is slidably connected in the filter chamber (2). A contact block (274) is installed at one end of the crossbar (273) outside the filter chamber (2). The upper surface of the contact block (274) is set as an inclined surface. A pressing rod (28) is used to press the inclined surface of the contact block (274). A second spring (275) is sleeved on the crossbar (273). The two ends of the second spring (275) are fixedly connected to the opposite surfaces of the filter chamber (2) and the contact block (274), respectively.

6. A filtration device for mineral water production according to claim 5, characterized in that: The contact block (274) is provided with a compression inflation device (29) installed outside the filter chamber (2) on the side near the filter chamber (2). The compression inflation device (29) is connected to an air pipe (30). The opposite sides of the first shield (7) and the second shield (8) are provided with an expansion airbag (31). The expansion airbag (31) is U-shaped and is connected to the end of the air pipe (30). The lower surfaces of the first shield (7) and the second shield (8) are provided with sealing gaskets. The two sealing gaskets are respectively attached to the inner bottom wall of the processing chamber (1) and the filter chamber (2).

7. A filtration device for mineral water production according to claim 6, characterized in that: The extrusion inflation device (29) includes an air storage frame (291) installed outside the filter chamber (2). A piston plate (292) is slidably connected inside the air storage frame (291). A piston rod (293) is installed on the side of the piston plate (292). The piston rod (293) is slidably connected inside the air storage frame (291). A connecting frame (294) is installed at the end of the piston rod (293) located outside the air storage frame (291). The connecting frame (294) is attached to the outside of the contact block (274). The air pipe (30) is connected to the air storage frame (291). A third spring (295) is installed on the side of the piston plate (292) on the inner wall of the air storage frame (291).

8. A filtration device for mineral water production according to claim 7, characterized in that: The filter plate (6) is vertically slidably connected to the inner wall of the connection hole (5). A movable rod (35) is installed on the filter plate (6). The movable rod (35) is slidably connected in the processing chamber (1). A bearing seat (36) is installed at the top of the movable rod (35). The bearing seat (36) is installed on the upper surface of the processing chamber (1). A vibration motor (37) is installed on the bearing seat (36).

9. A filtration device for mineral water production according to claim 8, characterized in that: Two rubber strips (32) are installed under the filter plate (6), and two guide strips (33) are installed on the inner wall of the connecting hole (5). The two guide strips (33) are respectively attached to the left and right sides of the filter plate (6). The upper surface of the guide strips (33) is set as an inclined surface to guide the impurities that fall off the surface of the filter plate (6) obliquely downward away from the filter plate (6). The filter plate (6) is provided with a sealing ring (34) that fits with the guide strips (33) and the connecting hole (5).

10. A filtration device for mineral water production according to claim 9, characterized in that: The vertical movement height of the guide sleeve (23) is greater than the height of the filter plate (6).

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