Pharmaceutical water purification equipment

Abstract

The invention relates to the technical field of water purification, and particularly discloses pharmaceutical water purification equipment which comprises a multi-medium filtering module, the multi-medium filtering module comprises a tank body, a water inlet pipe, a flushing pipe and a water drainage pipe, and the multi-medium filtering module further comprises a mounting module, a filtering module, a pressing module and a driving module; the mounting module comprises a rotating seat rotating in the tank body around the vertical axis, and a bearing column rotating around the vertical axis is arranged on the inner side of the rotating seat. The device has the beneficial effects that in the process that the stirring rod can scatter a filter material and continuously stir the filter material, clean water flow falling from the upper part can pass through the filter box, impurities on the filter material in the filter box can be conveniently washed away, and the filter box can be overturned by 180 degrees to perform backwashing on the filter material in the filter box, so that continuous circulation is performed; the filter material is continuously stirred and backwashed, so that the washing effect on the filter material is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of water purification, and in particular to a water purification device for pharmaceutical use. Background Art

[0002] Water plays an important role in the pharmaceutical process, and the pharmaceutical industry has extremely strict requirements for water quality. The purity of water not only affects the efficacy of the drug, but is also the key to ensuring product quality. According to the requirements of the National Pharmacopoeia, pharmaceutical water must be purified water that has been processed through softening, disinfection, filtration, deionization, reverse osmosis, distillation and other procedures to ensure that the water quality is no longer polluted and microbial growth is not allowed.

[0003] The application document with the publication number CN116119889A discloses a pure water treatment device, including a filter cartridge and a reverse osmosis membrane tube, the reverse osmosis membrane tube is used to purify water, the filter cartridge includes an outer cartridge, an inner cartridge and a filter element group, the inner cartridge is arranged in the outer cartridge, the filter element group can be rotatably arranged in the inner cartridge, the filter element group includes N filter elements, wherein N≥2; the filter element group has a working state and a cleaning state, when in the working state, the filter elements are used to filter water; when in the cleaning state, the first filter element to the N-1th filter element move along the axis of the inner cartridge; a guide block is arranged on the surface of the filter element; N-1 wedge blocks are arranged on the inner cartridge; when in the cleaning state, the N-1 wedge blocks drive the first filter element to the N-1th filter element to move along the axis of the inner cartridge. By setting the filter element group, on the one hand, the normal operation of the treatment device is guaranteed, and on the other hand, the filter element group can be cleaned in time, thereby increasing the service life of the reverse osmosis membrane and reducing the purification cost.

[0004] In the process of treating pure water, the water flow needs to be initially filtered to remove tiny particles and organic matter in the water flow, and then a high-pressure water pump is used to apply a pressure greater than the osmotic pressure to the filtered water flow, so that the high-purity water flow flows out through the reverse osmosis membrane to complete the treatment of pure water. The multi-media filter tank in the pure water purification device is located at the front end of the purification device. It can intercept suspended matter, colloidal particles and macromolecular organic matter in the water through the filter material to reduce the turbidity of the water. After long-term use, the filter layer will accumulate too many impurities and cause blockage. At present, the filter layer is cleaned by flushing the filter layer. The cleaning effect of this method is not ideal. There will still be a lot of impurities remaining in the filter layer, which increases the frequency of maintenance. Summary of the invention

[0005] The present invention provides a water purification device for pharmaceutical use, aiming to solve the technical problems in the related art that the multi-media filter tank in the pure water purification treatment device is located at the front end of the purification device, which can intercept suspended solids, colloidal particles and macromolecular organic matters in water through the filter media, reduce the water turbidity, but after long-term use, excessive impurities will accumulate in the filter media layer, causing blockage. At present, when cleaning the filter media layer, it is achieved by flushing the filter media layer, and the cleaning effect of this method is not ideal, and more impurities will still remain in the filter media layer, increasing the maintenance frequency.

[0006] A water purification device for pharmaceutical use according to the present invention includes: a multi-media filtration module, the multi-media filtration module includes a tank body and a water inlet pipe, a flushing pipe and a drain pipe provided on the tank body, and the multi-media filtration module further includes an installation module, a filtration module, a pressing module and a driving module; the installation module includes a rotating seat rotatable around a vertical axis in the tank body, an inner side of the rotating seat is provided with a bearing column rotatable around the vertical axis, and a plurality of closing blocks are circumferentially arranged on the bearing column; the filtration module includes a plurality of filtration boxes evenly distributed along the circumference of the bearing column and filled with filter media inside, the filtration boxes are rotatably installed on the bearing column around a horizontal axis, and the closing blocks are located at the gaps between adjacent two filtration boxes; the pressing module includes a pressing member vertically sliding on the bearing column, when the pressing member abuts against the filtration box, it can limit its rotation around the horizontal axis; the driving module includes a plurality of rotating cylinders rotatable around a horizontal axis in the rotating seat and corresponding to the filtration boxes one by one, a driving shaft is horizontally rotatably installed on the filtration box, one end of the driving shaft is elastically rotatably connected to the rotating cylinder, the other end of the driving shaft is provided with a plurality of protrusions on the outer circumference, and an elastic block with an inclined end is elastically slidably installed at a position corresponding to the protrusions on the filtration box, and a stirring rod is also fixed on the driving shaft; during the rotation of the rotating seat, when the pressing member abuts against the filtration box, the driving shaft drives the stirring rod to rotate relative to the filtration box, and when the pressing member is lifted, the driving shaft can drive the filtration box to flip 180 degrees.

[0007] When the filter box is located outside the shielding part, the pressing piece abuts against the filter box, and the filter box cannot rotate. Due to the restriction of the elastic block on the driving shaft, when the rotating cylinder rotates, it will first drive the winding spring to rotate and store energy in the winding spring. When the winding spring is stored to the maximum value, the convex block on the driving shaft overcomes the blocking force of the elastic block, and the convex block will rotate over the elastic block. The rotating cylinder drives the driving shaft to rotate together, and the stirring rod on the driving shaft stirs the filter material in the filter box. When the filter box rotates to directly below the shielding part, the pressing piece rises. Since the rotating seat is in a stopped state at this time and the filter box can rotate around the axis of the connecting part, the winding spring will drive the driving shaft to rotate. The convex block and the elastic block are engaged with each other, and the driving shaft will drive the filter box to rotate together, causing the filter box to rotate 180 degrees and complete the turning over of the filter box. The stirring rod can disperse the filter material. During the continuous stirring of the filter material, the clean water flowing down from above can pass through the filter box, which is convenient for flushing away the impurities on the internal filter material. Moreover, the filter box can be turned over 180 degrees to backwash the filter material in the filter box, and this process is continuously cycled. Through the continuous stirring and backwashing of the filter material, the flushing effect on the filter material is effectively improved.

[0008] Preferably, a flow guide frame is further fixedly installed inside the tank body, and the flow guide frame is located above the mounting seat. The flow guide frame has a fixing part and a shielding part. The fixing part is of an annular structure and is coaxially arranged with the tank body. The fixing part has an opening, and the shielding part is located at the opening of the fixing part. The shielding part is composed of a sector panel and two side plates. The sector panel is horizontally arranged, and the two radius sides of the sector panel are perpendicular to each other. The axis where the center of the sector panel on the shielding part is located is coaxially arranged with the axis of the fixing part.

[0009] A spare filter box is formed below the shielding part. When the other three filter boxes are blocked, the filter box in the standby state can enable the water remaining above the filter box to quickly pass through for filtration, and can quickly filter the water remaining in the tank body, which is convenient for quickly carrying out the flushing work of the filter material and improving work efficiency.

[0010] Preferably, the filter box has an outer arc surface, an inner plane, and two identical side surfaces in the horizontal direction. A connecting part is fixedly arranged on the inner plane of the filter box. The connecting part is of a columnar structure, and the axis of the connecting part is horizontally arranged and perpendicular to the inner plane of the filter box. The connecting part is horizontally rotatably assembled on the bearing column.

[0011] Preferably, a support column is further fixedly installed on the flow guide frame. A guide groove is arranged on the outer side wall of the support column, and a convex part is arranged on the guide groove. The position of the convex part corresponds to that of the shielding part. A guide block is arranged on the pressing piece, and the guide block penetrates into the guide groove. When the guide block reaches the convex part, it can lift the pressing piece.

[0012] The guide block rotates along the guide groove and can lift the pressing piece when it reaches the convex part.

[0013] Preferably, a torsion spring is arranged inside the rotating cylinder. One end of the torsion spring is connected to the rotating cylinder, and the other end is connected to the driving shaft.

[0014] Preferably, the pressing member has a bottom plate and two side plates connected to both ends of the bottom plate. The bottom plate is slidably matched with the bearing column, and the two side plates are respectively slidably matched with two adjacent closing blocks.

[0015] While the pressing member can press the filter box, it can also seal the gaps between the filter box, the bearing column, and the closing blocks.

[0016] Preferably, a transmission gear is fixedly installed on the rotating cylinder. An avoidance cavity is arranged on the inner wall of the rotating cylinder. One end of the rotating cylinder penetrates into the avoidance cavity of the tank body. A transmission gear ring is fixedly installed on the top wall of the avoidance cavity, and the transmission gear ring meshes with the transmission gear.

[0017] During the rotation of the rotating seat, the rotating cylinder can be made to rotate around the horizontal axis.

[0018] Preferably, a driving gear ring is fixedly installed on the rotating seat, and a driving gear meshing with the driving gear ring is rotatably installed on the tank body.

[0019] Preferably, an annular mounting seat is installed inside the tank body, and the mounting seat is coaxially arranged with the tank body. The mounting seat has an annular mounting groove, and the rotating seat is rotatably assembled in the mounting groove.

[0020] Preferably, the cross-section of the bearing column is an octagonal structure.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are as follows: When the filter box is located outside the shielding part, the pressing member abuts against the filter box, and the filter box cannot rotate. Due to the restriction of the elastic block on the driving shaft, when the rotating cylinder rotates, it will first drive the torsion spring to rotate and store energy in the torsion spring. When the torsion spring is fully wound, the convex block on the driving shaft overcomes the blocking force of the elastic block, and the convex block will rotate over the elastic block. The rotating cylinder drives the driving shaft to rotate together, and the stirring rod on the driving shaft stirs the filter material in the filter box. When the filter box rotates to directly below the shielding part, the pressing member rises. Since the rotating seat is in a stopped state at this time and the filter box can rotate around the axis of the connecting part, the torsion spring will drive the driving shaft to rotate. The convex block and the elastic block are engaged with each other, and the driving shaft will drive the filter box to rotate together, so that the filter box rotates 180 degrees to complete the turning over of the filter box. The stirring rod can disperse the filter material. During the continuous stirring of the filter material, the clean water flowing down from above can pass through the filter box, which is convenient for washing away the impurities on the internal filter material. Moreover, the filter box can be turned over 180 degrees to backwash the filter material in the filter box, and this process is continuously cycled. By continuously stirring and backwashing the filter material, the washing effect on the filter material is effectively improved.

[0022] When the other three filter cartridges are blocked, the driving gear drives the turntable to rotate 90 degrees, so that the filter cartridge in the standby state below the shielding part rotates to the outside, enabling the residual water source above the filter cartridge to quickly pass through the filter cartridge for filtration, quickly filtering out the residual water in the tank body, facilitating the rapid flushing of the filter media, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a cross-sectional view of the present invention.

[0025] Figure 3 It is an axonometric cross-sectional view of the tank body of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the turntable of the present invention.

[0027] Figure 5 It is an exploded schematic diagram of the diversion frame, filter cartridge and turntable of the present invention.

[0028] Figure 6 It is a top view of the turntable of the present invention.

[0029] Figure 7 It is a cross-sectional view of the turntable of the present invention.

[0030] Figure 8 It is a top view of the diversion frame of the present invention.

[0031] Figure 9 It is a schematic diagram of the structure of the bearing column of the present invention.

[0032] Figure 10 It is a cross-sectional view of the filter cartridge of the present invention.

[0033] Figure 11 It is a schematic diagram of the structure of the drive shaft of the present invention.

[0034] Figure 12 It is a schematic diagram of the structure of the guide groove of the present invention.

[0035] Figure 13 It is a schematic diagram of the structure of the pressing member of the present invention.

[0036] Reference Signs: 10. Tank body; 11. Water inlet pipe; 12. Drain pipe; 13. Flushing pipe; 14. Mounting seat; 15. Mounting groove; 16. Avoidance cavity; 20. Activated carbon filter tank; 21. Water storage tank; 22. Reverse osmosis device; 30. Flow guide frame; 31. Fixed part; 32. Shielding part; 33. Support column; 34. Guide groove; 35. Protrusion; 40. Rotating seat; 41. Driving gear ring; 42. Driving gear; 43. Driving box; 50. Bearing column; 51. Mounting hole; 52. Sealing block; 60. Filter box; 61. Connecting part; 70. Rotating cylinder; 71. Transmission gear; 72. Transmission gear ring; 80. Driving shaft; 81. Torsion spring; 82. Protrusion block; 83. Elastic block; 84. Return spring; 85. Stirring rod; 90. Pressing part; 91. Guide block. Detailed implementation manners

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0038] As Figures 1 to 13 shown, a specific embodiment of a pharmaceutical water purification device of the present invention includes a multi-media filtration module, an activated carbon filter tank 20, a water storage tank 21, and a reverse osmosis device 22.

[0039] Both the multi-media filtration module and the activated carbon filter tank 20 can preliminarily filter the water flow, filter out the suspended substances, colloidal particles and macromolecular organic matters in the water flow. The water after preliminary purification enters the water storage tank 21, and then the water in the water storage tank 21 is pressurized by a pump body and pumped into the reverse osmosis device 22. After further filtration by the reverse osmosis device 22, pure water is obtained, and this pure water can be used for pharmaceutical purposes.

[0040] In this embodiment, the multi-media filtration module, the activated carbon filter tank 20, the water storage tank 21, and the reverse osmosis device 22 are arranged in sequence from left to right.

[0041] The multi-media filtration module includes a bearing module, a flow guide module, a mounting module, a filtration module, a pressing module, and a driving module.

[0042] As Figure 1 , Figure 2 and Figure 3 shown, the bearing module includes a tank body 10, a water inlet pipe 11, a drain pipe 12, a flushing pipe 13, and a mounting seat 14.

[0043] On the outer side wall of the tank body 10, a water inlet pipe 11 is installed at a position near the upper part on the left side, and the water inlet pipe 11 is communicated with the inside of the tank body 10, so that the water inlet pipe 11 can convey water source into the tank body 10. The tank body 10 is communicated with the activated carbon filter tank 20, the activated carbon filter tank 20 is communicated with the water storage tank 21, and the water storage tank 21 is communicated with the reverse osmosis device 22 through pipelines, and water pumps are connected to the pipelines, so as to realize that the water preliminarily purified in the tank body 10 passes through the activated carbon filter tank 20, the water storage tank 21 and finally reaches the reverse osmosis device 22 in sequence.

[0044] A flushing pipe 13 is installed at the central position of the top of the tank body 10. One end of the flushing pipe 13 is communicated with the inside of the tank body 10, and the other end is communicated with the water storage tank 21. When the filtering module needs to be flushed, the device stops working first, and the relatively clean water in the water storage tank 21 is conveyed into the tank body 10 through the flushing pipe 13, so that the water flow flushes the filtering module. A drain pipe 12 is installed at the bottom of the tank body 10, and the drain pipe 12 is used to discharge the waste water for flushing the filtering module out of the tank body 10.

[0045] An annular mounting seat 14 is installed inside the tank body 10. The mounting seat 14 is fixedly installed on the inner wall of the tank body 10, and the mounting seat 14 is coaxially arranged with the tank body 10. The mounting seat 14 has an annular mounting groove 15 for carrying the mounting module, and the left part of the mounting groove 15 is provided with an opening, and the opening faces the inside of the mounting seat 14 (as Figure 3 shown). An avoidance cavity 16 is also formed on the side wall of the tank body 10. The avoidance cavity 16 is of an annular structure and is coaxially arranged with the tank body 10. The avoidance cavity 16 is located above the mounting seat 14.

[0046] As Figure 2 、 Figure 4 、 Figure 8 and Figure 12 shown, the diversion module includes a diversion frame 30, a fixing part 31, a shielding part 32 and a support column 33.

[0047] The diversion frame 30 is fixedly installed inside the tank body 10, and the diversion frame 30 is located above the mounting seat 14 and the avoidance cavity 16. The diversion frame 30 has a fixing part 31 and a shielding part 32. The fixing part 31 is of an annular structure and is coaxially arranged with the tank body 10. The left side of the fixing part 31 has an opening, and the position of the opening corresponds to the water inlet pipe 11 vertically.

[0048] The shielding part 32 is located at the opening of the fixing part 31. The shielding part 32 is composed of a sector panel and two side plates. The sector panel is horizontally arranged, and the two radius sides of the sector panel are perpendicular to each other. The two side plates are vertically arranged, and the upper ends of the two side plates respectively abut against the two radius sides of the sector panel, and the lower ends of the two side plates respectively abut against the two ends of the opening of the fixing part 31 (as Figure 4As shown). That is, the two side plates are also perpendicular to each other, and a cavity is formed inside the shielding portion 32. It should be specifically noted that the axis where the center of the fan-shaped panel on the shielding portion 32 is located is coaxially arranged with the axis of the fixing portion 31.

[0049] That is, in the circular area formed inside the fixing portion 31, one-fourth is occupied by the shielding portion 32. Since the shielding portion 32 corresponds to the upper water inlet pipe 11, the water entering the tank body 10 from the water inlet pipe 11 can only fall from the other three-fourths of the area inside the fixing portion 31 except the shielding portion 32.

[0050] A support column 33 is also fixedly installed on the shielding portion 32, and the support column 33 is coaxially arranged with the fixing portion 31.

[0051] As Figure 2 、 Figure 3 and Figure 4 shown, the installation module includes a rotating base 40, a driving gear ring 41, a driving gear 42, a driving box 43, a bearing column 50, and a closing block 52.

[0052] The rotating base 40 is of an annular structure, and the lower end of the rotating base 40 is rotationally fitted in the installation groove 15 on the installation base 14. A driving gear ring 41 is fixedly installed at a position near the upper end of the rotating base 40. A driving gear 42 meshing with the driving gear ring 41 is rotationally installed on the inner side wall of the tank body 10, and a driving box 43 is arranged outside the tank body 10. A motor (not shown in the figure) is installed inside the driving box 43, and the output end of the motor is connected to the driving gear 42. Thus, when the motor drives the driving gear 42 to rotate, the driving gear 42 can drive the driving gear ring 41 and the rotating base 40 to rotate. The upper surface of the rotating base 40 is slidably fitted with the bottom of the fixing portion 31 on the diversion frame 30.

[0053] As Figure 9 shown, the bearing column 50 is rotationally installed at the bottom of the support column 33. In this embodiment, the cross-section of the bearing column 50 is an octagonal structure. Among the eight surfaces on the outer side wall of the bearing column 50, there are four equal wide surfaces and four equal narrow surfaces, and the wide surfaces and the narrow surfaces are arranged alternately. That is, the two opposite surfaces on the bearing column 50 are the same. Circular installation holes 51 are opened at the central positions on the four wide surfaces of the bearing column 50, and the installation holes 51 are arranged in pairs opposite to each other. Closing blocks 52 are fixedly installed on the four narrow surfaces of the bearing column 50. The closing blocks 52 are horizontally arranged and are located at positions near the upper ends of the narrow surfaces. The closing block 52 is of a rectangular structure. The width of the closing block 52 is the same as the width of the narrow surface, and the long side of the closing block 52 is perpendicular to the narrow surface. In this embodiment, the closing block 52 is made of a flexible material, such as rubber, etc.

[0054] As Figure 6 、 Figure 7 、 Figure 9 and Figure 10As shown, the filtering module includes a filtering box 60 and a connecting part 61.

[0055] There are four filtering boxes 60, which are respectively rotatably installed on the mounting holes 51 on the four wide faces of the bearing column 50. The filtering box 60 has a hollow mesh structure inside, and filter media are loaded inside the filtering box 60. The water entering the tank body 10 from the water inlet pipe 11 can pass through the four filtering boxes 60 respectively, and the filter media in the filtering box 60 can filter the water flow.

[0056] In this embodiment, the filtering box 60 has an outer arc surface, an inner plane and two identical side surfaces in the horizontal direction, and two identical filtering surfaces in the vertical direction. A connecting part 61 is fixedly arranged on the inner plane of the filtering box 60. The connecting part 61 is a columnar structure, and the axis of the connecting part 61 is horizontally arranged and perpendicular to the inner plane of the filtering box 60.

[0057] The connecting part 61 of the filtering box 60 is rotatably installed in the mounting hole 51, and the connecting part 61 and the mounting hole 51 are coaxially arranged. The inner plane of the filtering box 60 abuts against the wide face of the bearing column 50, and the width of the inner plane of the filtering box 60 is the same as that of the wide face of the bearing column 50. That is to say, the four filtering boxes 60 are evenly arranged along the circumferential direction of the bearing column 50, and two are symmetrically arranged in the front-back direction and the left-right direction. The filtering box 60 on the left is just located below the shielding part 32 on the diversion frame 30, and the shielding part 32 completely shields the filtering box 60 on the left.

[0058] It should be particularly noted that the upper surface of the filtering box 60 is flush with the bottom surface of the closing block 52, and the upper edge of the side surface on the filtering box 60 abuts against the length side of the bottom of the closing block 52. That is to say, there is a line contact between the filtering box 60 and the closing block 52 (as Figure 9 shown). There is a gap between two adjacent filtering boxes 60, and the width of the gap is the width of the narrow face on the bearing column 50. Both length sides at the bottom of each bearing column 50 abut against two adjacent filtering boxes 60, so as to be able to shield the gap between two adjacent filtering boxes 60 and prevent the water flow from falling from the gap between two adjacent filtering boxes 60.

[0059] It should be emphasized that there is a certain gap between the outer arc surface of the filtering box 60 and the inner wall of the swivel base 40 (as Figure 6As shown, it can ensure the normal rotation of the filter box 60. The outer diameter of the fixing part 31 is the same as the inner diameter of the tank body 10, that is, the outer peripheral wall of the fixing part 31 abuts against the inner wall of the tank body 10, and the inner diameter of the fixing part 31 is smaller than the diameter of the circular surface formed by the outer arc surfaces of the four filter boxes 60. That is, the fixing part 31 can block the gap between the outer arc surface of the filter box 60 and the inner wall of the rotating seat 40. Thus, the water entering the tank body 10 from the water inlet pipe 11 can directly fall onto the filter box 60 after passing through the fixing part 31, avoiding leakage from the gap.

[0060] As Figure 6 , Figure 9 , Figure 12 and Figure 13 shown, the pressing module includes a pressing member 90 and a guiding block 91.

[0061] A pressing member 90 is correspondingly arranged on each filter box 60. The pressing member 90 is made of rubber. The pressing member 90 has a bottom plate and two side plates connected to both ends of the bottom plate. The pressing member 90 can move up and down. When the pressing member 90 is in the lowered position, the pressing member 90 can block the gap between the inner plane of the filter box 60 and its two side surfaces. At the same time, abutting against the filter box 60 can limit its rotation. That is, the bottom plate of the pressing member 90 is at the gap between the inner plane of the filter box 60 and the bearing column 50, and the two side plates of the pressing member 90 are respectively at the gaps between the two side surfaces of the filter box 60 and the closing block 52. Thus, it can prevent water flow from flowing down through the gaps between the filter box 60, the bearing column 50, and the closing block 52. When the pressing member 90 is in the raised position, the pressing member 90 can release the restriction on the filter box 60, so that the filter box 60 can rotate.

[0062] A guiding groove 34 is provided on the outer side wall of the support column 33. The guiding groove 34 has a protruding portion 35, and the protruding portion 35 is located on the left side, that is, the protruding portion 35 is on one side of the shielding portion 32. A guiding block 91 is provided on the pressing member 90, and the guiding block 91 penetrates into the guiding groove 34. When the bearing column 50 and the four filter boxes 60 rotate together, the guiding block 91 will rotate in the guiding groove 34. When the filter box 60 rotates to the left side, that is, when it is located below the shielding portion 32, the guiding block 91 reaches the protruding portion 35 of the guiding groove 34, thereby forcing the pressing member 90 to rise, releasing the restriction on the filter box 60, and the filter box 60 can be flipped around the axis of the connecting portion 61.

[0063] As Figure 3 , Figure 4 , Figure 7 , Figure 9 , Figure 10 and Figure 11As shown in the figure, the driving module includes a rotating cylinder 70, a transmission gear 71, a driving shaft 80, a winding spring 81, a bump 82, a spring block 83, a return spring 84, and a stirring rod 85.

[0064] A driving shaft 80 is horizontally and rotatably installed in each filter box 60. The connecting portion 61 has an accommodation cavity inside. One end of the driving shaft 80 passes through the inner plane of the filter box 60 and penetrates into the accommodation cavity of the connecting portion 61, and the driving shaft 80 is coaxially arranged with the connecting portion 61.

[0065] A plurality of bumps 82 are circumferentially arranged at intervals on the outer side wall of one end of the driving shaft 80 located in the connecting portion 61. A plurality of spring blocks 83 are slidably installed on the wall of the accommodation cavity of the connecting portion 61 along its radial direction. A return spring 84 is arranged on the spring block 83, and the other end of the return spring 84 is connected to the connecting portion 61. When the spring block 83 extends into the accommodation cavity, it is located between two adjacent bumps 82, and the two side surfaces of the spring block 83 are in contact with the bumps 82. It should be emphasized that the surfaces of the spring block 83 in contact with the bumps 82 are both inclined surfaces. Thus, when the driving shaft 80 rotates and the thrust on the spring block 83 is large enough, the bump 82 can push the spring block 83 to contract into the connecting portion 61, and the return spring 84 will be compressed.

[0066] Four rotating cylinders 70 are rotatably installed on the outer peripheral wall of the rotating base 40. The axis of the rotating cylinder 70 is arranged along the radial direction of the rotating base 40. The inside of the rotating cylinder 70 is a hollow structure with one side open, and one end of the rotating cylinder 70 facing the inner side of the rotating base 40 is an open structure.

[0067] One end of the driving shaft 80 away from the connecting portion 61 passes through the outer arc surface of the filter box 60 and penetrates into one of the rotating cylinders 70. The driving shaft 80 is coaxially arranged with the rotating cylinder 70 and is in rotational fit. A winding spring 81 is arranged in the rotating cylinder 70. One end of the winding spring 81 is connected to the driving shaft 80, and the other end is connected to the rotating cylinder 70.

[0068] A transmission gear 71 is fixedly installed at one end of the rotating cylinder 70 located outside the rotating base 40. One end of the rotating cylinder 70 penetrates into the avoidance cavity 16 of the tank body 10. The avoidance cavity 16 is used to ensure the rotation of the rotating cylinder 70. A transmission gear ring 72 is fixedly installed on the top wall of the avoidance cavity 16, and the transmission gear ring 72 is meshed with the transmission gear 71. Thus, when the rotating base 40 rotates, the rotating cylinder 70, the filter box 60, and the bearing column 50 can be driven to rotate together.

[0069] A plurality of rows of stirring rods 85 are arranged along the circumferential direction of the part of the driving shaft 80 located inside the filter box 60. The stirring rods 85 are in the filter material. When the driving shaft 80 drives the stirring rods 85 to rotate, the filter material in the filter box 60 can be stirred to break up the filter material.

[0070] During the process of the swivel base 40 driving the rotary drum 70 to rotate, the transmission gear 71 on the rotary drum 70 meshes with the transmission gear ring 72, and the rotary drum 70 can rotate around its own axis.

[0071] When the pressing member 90 presses on the filter cartridge 60, the filter cartridge 60 cannot rotate. Due to the restriction of the elastic block 83 on the drive shaft 80, when the rotary drum 70 rotates, it will first drive the winding spring 81 to rotate and store energy in the winding spring 81. When the winding spring 81 is charged to the maximum value, the driving force on the drive shaft 80 also increases at this time, so that the convex block 82 on the drive shaft 80 overcomes the blocking force of the elastic block 83 and pushes the elastic block 83 outward. The return spring 84 is compressed, and the convex block 82 will rotate over the elastic block 83. That is, the rotary drum 70 drives the drive shaft 80 to rotate together, and the stirring rod 85 on the drive shaft 80 stirs the filter material in the filter cartridge 60.

[0072] When the filter cartridge 60 reaches below the shielding portion 32, the pressing member 90 rises to release the pressing on the filter cartridge 60, and the swivel base 40 temporarily stops rotating. At this time, the filter cartridge 60 can rotate around the axis of the connecting portion 61. That is, the winding spring 81 in the energy storage state can release elastic force. When the rotary drum 70 stops rotating, the winding spring 81 will drive the drive shaft 80 to rotate. Since the filter cartridge 60 is in a rotatable state and the convex block 82 and the elastic block 83 are engaged with each other, the drive shaft 80 will drive the filter cartridge 60 to rotate together. In this embodiment, the elastic force released by the winding spring 81 can just ensure that the filter cartridge 60 rotates 180 degrees.

[0073] During operation, the filter cartridge 60 located below the shielding portion 32 does not perform the filtering work and is a spare filtering component, and the other three filter cartridges 60 perform the filtering work. When the other three filter cartridges 60 are blocked, the filtering speed decreases, and then the water inlet of the water inlet pipe 11 is stopped. The drive gear 42 drives the swivel base 40 to rotate 90 degrees, so that the spare filter cartridge 60 in the standby state below the shielding portion 32 rotates to the outside, enabling the residual water source above the filter cartridge 60 to quickly pass through the filter cartridge 60 for filtering. After the residual water source is filtered clean, the device stops and no longer performs the filtering work, and starts to clean the filter material.

[0074] Then, the clean water in the water storage tank 21 is pumped out and sent into the tank body 10 through the flushing pipe 13, and the water flow can fall onto the filter box 60 to flush the filter media inside. At the same time, the driving gear 42 drives the turntable 40 to start rotating, and the turntable 40 rotates step by step, that is, the turntable 40 rotates 90 degrees each time. When the filter box 60 is located outside the shielding portion 32, at this time, the guiding block 91 is located in the guiding groove 34, and the pressing member 90 presses on the filter box 60, and the filter box 60 cannot rotate. Due to the restriction of the elastic block 83 on the driving shaft 80, when the rotating cylinder 70 rotates, it will first drive the winding spring 81 to rotate and store energy in the winding spring 81. When the winding spring 81 is stored with the maximum energy, at this time, the driving force on the driving shaft 80 also increases, so that the convex block 82 on the driving shaft 80 overcomes the blocking force of the elastic block 83 and pushes the elastic block 83 outward, and the return spring 84 is compressed, and the convex block 82 will cross the elastic block 83 to achieve rotation. That is, the rotating cylinder 70 drives the driving shaft 80 to rotate together, and the stirring rod 85 on the driving shaft 80 stirs the filter media in the filter box 60. The stirring rod 85 can disperse the filter media. At the same time, the clean water falling from above can pass through the filter box 60, which is convenient for flushing the impurities on the internal filter media.

[0075] As the turntable 40 rotates, when the filter box 60 rotates to directly below the shielding portion 32, the guiding block 91 is located at the protruding portion 35 of the guiding groove 34, and the pressing member 90 rises to release the pressing on the filter box 60. Since the turntable 40 is in a stopped state at this time, and the filter box 60 can rotate around the axis of the connecting portion 61, the winding spring 81 will drive the driving shaft 80 to rotate. Since the filter box 60 is in a rotatable state, and at the same time, the convex block 82 and the elastic block 83 are engaged with each other, the driving shaft 80 will drive the filter box 60 to rotate together. Until the winding spring 81 completely releases the elastic force, it can just ensure that the filter box 60 rotates 180 degrees to complete the turning over of the filter box 60. Then, as the turntable 40 continues to rotate, when the filter box 60 that has been turned over 180 degrees reaches the outside of the shielding portion 32, the clean water above continues to flush the filter media, and this process is continuously cycled until the flushing of the filter media is completed.

[0076] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A pharmaceutical water purification device, comprising: The multi-media filter module includes a tank body and a water inlet pipe, a flushing pipe and a drain pipe arranged on the tank body, and is characterized in that the multi-media filter module also includes a mounting module, a filter module, a pressing module and a driving module; The mounting module comprises a rotating seat rotating inside the tank body around a vertical axis, a bearing column rotating around a vertical axis is provided on the inner side of the rotating seat, and a plurality of closing blocks are provided circumferentially on the bearing column; the filtering module comprises a plurality of filter boxes evenly distributed along the circumference of the bearing column and filled with filter material, the filter box is rotatably mounted on the bearing column around a horizontal axis, and the closing block is located at the gap between two adjacent filter boxes; the pressing module comprises a pressing piece vertically sliding on the bearing column, and when the pressing piece abuts against the filter box, it can limit its rotation around the horizontal axis; the driving module comprises a plurality of rotating drums rotating on the rotating seat around a horizontal axis and corresponding to the filter boxes one by one, a driving shaft is horizontally rotatably mounted on the filter box, one end of the driving shaft is elastically rotatably connected to the rotating drum, and a plurality of protrusions are provided on the outer periphery of the other end, and a spring block with an inclined end is elastically slidably mounted at a position corresponding to the protrusion on the filter box, and a stirring rod is also fixed on the driving shaft; During the rotation of the swivel seat, when the pressing piece abuts against the filter box, the driving shaft drives the stirring rod to rotate relative to the filter box. When the pressing piece is lifted, the driving shaft can drive the filter box to flip 180 degrees.

2. A pharmaceutical water purification device according to claim 1, characterized in that: A guide frame is also fixedly installed inside the tank body, and the guide frame is located above the mounting seat. The guide frame has a fixing portion and a shielding portion. The fixing portion is an annular structure, and the fixing portion is coaxially arranged with the tank body. The fixing portion has an opening, and the shielding portion is located at the opening of the fixing portion. The shielding portion is composed of a fan-shaped panel and two side panels. The fan-shaped panel is horizontally arranged, and the two radial edges of the fan-shaped panel are perpendicular to each other. The axis at which the center of the fan-shaped panel on the shielding portion is located is coaxially arranged with the axis of the fixing portion.

3. A pharmaceutical water purification device according to claim 2, characterized in that: The filter box has an outer arc surface, an inner plane and two identical side surfaces in the horizontal direction. A connecting part is fixedly arranged on the inner plane of the filter box. The connecting part is a columnar structure, and the axis of the connecting part is horizontally arranged and perpendicular to the inner plane of the filter box. The connecting part is horizontally rotatably assembled on the supporting column.

4. A pharmaceutical water purification device according to claim 2, characterized in that: A support column is also fixedly installed on the guide frame, and a guide groove is arranged on the outer wall of the support column. The guide groove has a protrusion, and the position of the protrusion corresponds to the position of the shielding portion. A guide block is arranged on the pressing piece, and the guide block penetrates into the guide groove. When the guide block reaches the protrusion, the pressing piece can be lifted.

5. A pharmaceutical water purification device according to any one of claims 1 to 4, characterized in that: A coil spring is arranged in the rotating drum, one end of the coil spring is connected to the rotating drum, and the other end is connected to the driving shaft.

6. A pharmaceutical water purification device according to claim 5, characterized in that: The pressing piece comprises a bottom plate and two side plates connected to both ends of the bottom plate. The bottom plate is slidably matched with the bearing column, and the two side plates are slidably matched with two adjacent closing blocks respectively.

7. A pharmaceutical water purification device according to claim 6, characterized in that: A transmission gear is fixedly installed on the rotating drum, an avoidance cavity is arranged on the inner wall of the rotating drum, one end of the rotating drum penetrates into the avoidance cavity of the tank body, a transmission gear ring is fixedly installed on the top wall of the avoidance cavity, and the transmission gear ring is meshed with the transmission gear.

8. A pharmaceutical water purification device according to claim 7, characterized in that: A driving gear ring is fixedly mounted on the rotating seat, and a driving gear meshing with the driving gear ring is rotatably mounted on the tank body.

9. The pharmaceutical water purification equipment according to claim 1, characterized in that: An annular mounting seat is installed inside the tank body, and the mounting seat is coaxially arranged with the tank body. The mounting seat is provided with an annular mounting groove, and the rotating seat is rotatably assembled in the mounting groove.

10. The pharmaceutical water purification equipment according to claim 1, characterized in that: The cross section of the bearing column is an octagonal structure.

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