A water purification device

Abstract

The present invention relates to the technical field of water treatment, and specifically discloses a water purification device, including a box body, a coarse filter and a reverse osmosis filter are arranged in the box body, and a position adjustment and flipping mechanism is arranged inside the box body; a working position and a flushing position are arranged in the box body, and the working position and the flushing position are both provided with a reverse osmosis filter, and the position adjustment and flipping mechanism is used to swap the positions of the reverse osmosis filters in the working position and the flushing position; a separation plate is arranged above and below the reverse osmosis filter, and a sealing cover for covering the upper and lower ends of the reverse osmosis filter is installed on the separation plate; the coarse filter is connected to the upper end of the reverse osmosis filter through the sealing cover of the working position, and the lower end of the reverse osmosis filter in the working position is connected to the upper end of the reverse osmosis filter in the flushing position through an intermediate water pipe, and a pump is arranged on the intermediate water pipe. The present invention reduces the replacement of the reverse osmosis filter by transferring the reverse osmosis filter to the flushing position for backwashing recovery after working in the working position.

Description

Technical Field

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

[0002] Deionized water needs to be added during the production of titanium metal. The preparation of deionized water requires multi-stage filtration. Multi-stage filtration is to remove impurities in the raw water first, and then use deionization technology to remove anions and cations in the water. In the process of removing impurities from the raw water, primary filtration and ultrafiltration are required to ensure that the filtration process can proceed smoothly and can be used for a longer time, reducing the frequency of replacement.

[0003] The Chinese patent document with the authorization announcement number CN205773809U discloses a deionized water treatment device, including a base, a box body is arranged on the top of the base, a water inlet pipe is connected to one side of the box body, one end of the water inlet pipe penetrates the box body and extends into the inside thereof, a controller is arranged on the other side of the box body, a coarse filter is arranged on the top of one side of the inside of the box body, and the coarse filter is close to one side of the inner wall of the box body and communicates with the end of the water inlet pipe extending into the box body, a water outlet pipe is connected to the bottom of the coarse filter, a high-pressure pump and a sterilization box are arranged in sequence at the bottom of the box body from left to right, one side of the high-pressure pump is communicated with one end of the water outlet pipe away from the coarse filter, a first water supply pipe is connected to the top of the high-pressure pump, a reverse osmosis filter is arranged on the first water supply pipe, and a reverse osmosis membrane is arranged inside the reverse osmosis filter. When in use, the coarse filter first filters the water entering the water inlet pipe, and then sends it to the reverse osmosis filter through the high-pressure pump, and the reverse osmosis filter and the coarse filter filter the impurities in the water.

[0004] However, after a long period of time, both the reverse osmosis filter and the coarse filter will be clogged due to impurities in the incoming raw water and need to be replaced to ensure the normal operation of the water treatment. Replacing the reverse osmosis filter may increase the cost of water treatment. Summary of the invention

[0005] The present invention provides a water purification device, aiming to solve the problem in the related art that a reverse osmosis filter needs to be replaced due to clogging after long-term use.

[0006] A water purification device of the present invention comprises a casing, in which a coarse filter and a reverse osmosis filter are arranged, and further comprises: a position adjustment and flipping mechanism, which is arranged inside the casing; a working position and a flushing position are arranged inside the casing, in which a reverse osmosis filter is arranged at each of the working position and the flushing position, and the position adjustment and flipping mechanism is used to swap the positions of the reverse osmosis filters at the working position and the flushing position and flip them up and down at the same time; a separation plate, in which one separation plate is arranged above and below the reverse osmosis filter, and a sealing cover for covering the upper and lower ends of the reverse osmosis filter is installed on the separation plate; the coarse filter is connected to the upper end of the reverse osmosis filter through the sealing cover at the working position, and the lower end of the reverse osmosis filter at the working position is connected to the upper end of the reverse osmosis filter at the flushing position through an intermediate water pipe, and a pump is arranged on the intermediate water pipe.

[0007] A reverse osmosis filter is provided on both the working position and the flushing position. The reverse osmosis filter of the working position is connected to the coarse filter through a sealing cover, and the reverse osmosis filter of the flushing position is connected to the lower end of the reverse osmosis filter of the working position through an intermediate water pipe, so that the water filtered by the working position is flushed to the reverse osmosis filter of the flushing position under the action of the pump, and then the reverse osmosis filter of the flushing position can be backwashed to restore the filtering function. When the reverse osmosis filter of the flushing position does not need to be backwashed, the pump stops working, and the reverse osmosis filter of the working position filters water normally. When backwashing is required after long-term use, the two reverse osmosis filters are first opened through the sealing cover, and then the positions of the two reverse osmosis filters are swapped through the position adjustment and flipping mechanism, and the reverse osmosis filter is flipped up and down at the same time, so that the reverse osmosis filter after long-term use can be backwashed, thereby restoring the function of the reverse osmosis filter and reducing the replacement of the reverse osmosis filter.

[0008] At the same time, water flows through the two reverse osmosis filters from top to bottom, so the reverse osmosis filter at the working position can work stably, and water flows from top to bottom at the backwashing position, which can make impurities more easily separated and improve the flushing effect.

[0009] Preferably, the positioning and flipping mechanism includes a fixed shaft, a rotating frame and a horizontal rotating shaft, the fixed shaft is vertically fixed in the box, the rotating frame is rotatably set on the fixed shaft, the center line of the rotating frame coincides with the center line of the fixed shaft, two horizontal rotating shafts are provided and the center lines of the two horizontal rotating shafts are horizontal and on the same straight line, two reverse osmosis filters are fixed on the horizontal rotating shaft, a first bevel gear is coaxially fixed on the fixed shaft, a second bevel gear is coaxially fixed on the horizontal rotating shaft, and the first bevel gear is meshed with the second bevel gear.

[0010] The first bevel gear is fixed, and the second bevel gear is coaxially fixed on the horizontal rotating shaft. When the rotating frame rotates around the fixed shaft, the rotating frame drives the horizontal rotating shaft to rotate around the fixed shaft. At the same time, the horizontal rotating shaft rotates under the action of the second bevel gear and the first bevel gear, so that the reverse osmosis filter fixed on the horizontal rotating shaft can be exchanged and flipped up and down at the same time.

[0011] Preferably, a driving assembly is provided at the edge of the separation plate, and the driving assembly includes a driving motor and a driving screw. The driving motor is fixed in the box body, the driving screw is vertically arranged, and the threads at both ends of the driving screw are arranged in opposite directions. The two separation plates arranged upper and lower are respectively threadedly connected to the two ends of the driving screw, and the driving screw is driven by the driving motor.

[0012] When the driving motor drives the driving screw to rotate, the two separation plates on the driving screw move closer to or farther away from each other. When the two separation plates move away from each other, the sealing covers on the separation plates open the two reverse osmosis filters. When the two separation plates move closer to each other, the sealing covers connect the reverse osmosis filters, making the position exchange process of the two reverse osmosis filters more convenient.

[0013] Preferably, a transmission assembly is arranged between the driving screw and the rotating frame, and the transmission assembly includes a first transmission gear, a second transmission gear, a transmission toothed belt and a driving cone. The first transmission gear is connected to the rotating frame through a one-way bearing, the second transmission gear is rotationally connected to the driving screw, the driving cone is vertically slidingly connected to the driving screw and rotates synchronously with the driving screw, and a conical hole for cooperating with the driving cone is opened in the center of the second transmission gear. When the driving cone is connected in the conical hole, the second transmission gear drives the first transmission gear to rotate through the transmission toothed belt.

[0014] The driving cone is connected to the conical hole, so that the driving cone drives the second transmission gear through friction, and then the second transmission gear drives the first transmission gear to rotate through the transmission toothed belt, and the first transmission gear can drive the rotating frame to rotate through the one-way bearing, so that the driving screw drives the rotating frame to rotate through the transmission assembly; when the driving screw rotates in the opposite direction to drive the two separation plates to approach each other, the one-way bearing can loosen the first transmission gear and the rotating frame so that they can rotate separately, thereby preventing the rotating frame from driving the reverse osmosis filter back.

[0015] Preferably, a separation spring is provided above the driving cone, and a coupling spring is provided below the driving cone. The upper end of the separation spring abuts against the driving screw, and the lower end abuts against the driving cone. The separation spring is used to abut the driving cone to separate from the second transmission gear. One end of the coupling spring abuts against the driving cone, and the other end abuts against the separation plate.

[0016] One end of the coupling spring abuts against the separation plate, and the other end abuts against the driving cone. When the separation plate pushes the driving cone to move upward and connect with the second transmission gear, the separation plate continues to squeeze the coupling spring to ensure the effective connection between the driving cone and the second transmission gear, and can also adapt to the continued upward movement of the separation plate, while driving the rotating frame to rotate. When the separation plate moves away from the second transmission gear, the elastic force of the coupling spring gradually decreases, so that the separation spring can separate the driving cone from the second transmission gear, so that the action of rotating the reverse osmosis filter again lags behind the action of opening the sealing cover.

[0017] Preferably, the coarse filter includes an outer shell and a filter screen rotatably arranged in the outer shell, a partition component is arranged in the outer shell, a filter chamber and a flushing chamber are formed inside the outer shell through the partition component, one side of the filter screen is located in the filter screen, and the other side is located in the flushing chamber, and a first power part for driving the filter screen to rotate is fixedly arranged on the outer shell.

[0018] A filter chamber and a flushing chamber are formed inside the shell by a partition assembly. The filter screen can rotate in the shell under the action of the first power member, so that the parts of the filter screen located in the filter chamber and the flushing chamber are exchanged, thereby allowing the filter screen to recover in the flushing chamber.

[0019] Preferably, the partition assembly includes a fixed plate and a telescopic plate, the fixed plate is fixed at the center position of the bottom wall in the shell, a slide groove is opened inside the fixed plate, the telescopic plate is slidably connected in the slide groove, and the telescopic plate slides in the slide groove along the radial direction of the shell, a rubber pad is fixedly provided on one side of the telescopic plate facing the inner wall of the filter screen, a cam is provided at the center of the fixed plate, the cam is connected to the second power member, and the cam drives the telescopic plate to move to the outside of the slide groove through the second power member.

[0020] The telescopic plate is slidably connected in the slide groove, so that the cam abuts against the inner wall of the filter screen under the action of the second power member to separate the filter chamber and the flushing chamber. When the filter screen is rotated, the second power member first loosens the telescopic plate to make the filter screen easy to rotate, while reducing the partition component to scrape off the debris in the filter screen in advance.

[0021] Preferably, the outer shell is connected with a raw water inlet pipe, a raw water outlet pipe, a flushing inlet pipe and a flushing outlet pipe, the raw water inlet pipe and the raw water outlet pipe are connected to the filter cavity, the flushing inlet pipe and the flushing outlet pipe are connected to the flushing cavity, the raw water inlet pipe and the flushing outlet pipe are connected to the inner side of the filter net, and the raw water outlet pipe and the flushing outlet pipe are connected to the outer side of the filter net.

[0022] The raw water is filtered through the inner side of the filter screen, so that the impurities are on the inner wall of the filter screen, and then after being rotated to the flushing cavity, the flushed impurities can flow out from the inner side of the filter screen through the flushing outlet pipe.

[0023] Preferably, the flushing water inlet pipe is connected to the lower end of the reverse osmosis filter at the flushing position, and the reverse osmosis filter and the coarse filter are backwashed simultaneously.

[0024] The flushing water inlet pipe is connected with the lower end of the reverse osmosis filter at the flushing position, so that the backwashing process of the reverse osmosis filter and the coarse filter is carried out simultaneously, saving backwashing water.

[0025] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0026] The present invention flushes the reverse osmosis filter at the flushing position with water filtered at the working position under the action of a pump, so that the reverse osmosis filter at the flushing position recovers its filtering function after reverse flushing. When the reverse osmosis filter at the flushing position does not need to be backwashed, the pump stops working, and the reverse osmosis filter at the working position filters water normally. When backwashing is required after long-term use, the two reverse osmosis filters are first opened through a sealing cover, and then the positions of the two reverse osmosis filters are swapped through a position adjustment and flipping mechanism, and the reverse osmosis filters are flipped up and down at the same time, so that the reverse osmosis filter after long-term use can be backwashed, thereby recovering the function of the reverse osmosis filter and reducing the replacement of the reverse osmosis filter. The separation plate continues to squeeze the coupling spring to ensure the effective connection between the driving cone and the second transmission gear, and can also adapt to the continued upward movement of the separation plate, and drive the rotating frame to rotate at the same time. When the separation plate is away from the second transmission gear, the elastic force of the coupling spring gradually decreases, so that the separation spring can separate the driving cone from the second transmission gear, so that the action of rotating the reverse osmosis filter again lags behind the action of opening the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a diagram showing the internal structure of a water purification device in an embodiment of the present invention with a box body cut away;

[0028] Figure 2 is a schematic diagram of the position of the reverse osmosis filter in an embodiment of the present invention;

[0029] Figure 3 is a structural diagram of a coarse filter with its housing cut away in an embodiment of the present invention;

[0030] Figure 4 is a cross-sectional view perpendicular to the axis of the coarse filter in an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of the connection structure between the driving assembly and the transmission assembly in an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of a cutaway position adjustment and flipping mechanism in an embodiment of the present invention;

[0033] Figure 7 yes Figure 6 Sectional view in the AA direction;

[0034] Figure 8 yes Figure 7 A magnified schematic diagram of area B in the middle.

[0035] Reference numerals:

[0036] 1. Box body; 11. Partition plate; 12. Working position; 13. Flushing position; 14. Separation plate; 15. Sealing cover; 16. Sliding sleeve; 2. Coarse filter; 21. Housing; 22. Filter screen; 23. Partition assembly; 231. Fixed plate; 232. Telescopic plate; 233. Slide; 234. Rubber pad; 24. Filter chamber; 25. Flushing chamber; 26. First power member; 27. Cam; 28. Second power member; 29. ​​Push rod; 3. Reverse osmosis filter; 41. Raw water inlet pipe; 42. Raw water outlet pipe; 43. Flushing inlet pipe; 44. Flushing outlet pipe; 51. Upper inlet pipe; 52. Lower water outlet pipe; 53, middle water pipe; 54, pump parts; 55, flushing pipe; 6, position adjustment and flipping mechanism; 61, fixed shaft; 62, rotating frame; 63, horizontal rotating shaft; 64, first bevel gear; 65, second bevel gear; 7, driving assembly; 71, driving motor; 72, driving screw; 73, synchronous gear; 74, synchronous belt; 8, transmission assembly; 81, first transmission gear; 82, rotating seat; 83, one-way bearing; 84, second transmission gear; 85, transmission belt; 86, driving cone; 87, tapered hole; 88, separation spring; 89, combining spring; 9, fixed plate; 91, spring pin. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] Combine the following Figures 1 to 8 A water purification device according to the present invention is described.

[0039] Embodiment 1:

[0040] This embodiment discloses a water purification device, such as Figure 1 and Figure 2As shown, it includes a box body 1, in which a coarse filter 2 and a reverse osmosis filter 3 are arranged. In this embodiment, a horizontal partition plate 11 is also arranged in the box body 1, so that the coarse filter 2 is fixed on the upper surface of the partition plate 11, and the reverse osmosis filter 3 is arranged below the partition plate 11. A raw water inlet pipe 41 is arranged on the coarse filter 2, and raw water enters the coarse filter 2 through the raw water inlet pipe 41. Then, after the coarse filter 2 is filtered once, it is sent to the reverse osmosis filter 3 for secondary filtration. The water after the secondary filtration can be used after deionization.

[0041] refer to Figure 1 and Figure 2 , two reverse osmosis filters 3 are provided, and the positions of the two reverse osmosis filters 3 are respectively the working position 12 and the flushing position 13. The reverse osmosis filter 3 of the working position 12 is used to communicate with the coarse filter 2, so that the water filtered by the coarse filter 2 enters the reverse osmosis filter 3 of the working position 12. The working position 12 and the flushing position 13 are both provided with an upper water inlet pipe 51 and a lower water outlet pipe 52, and the upper water inlet pipe 51 and the lower water outlet pipe 52 are both vertically arranged. The reverse osmosis filters 3 of the working position 12 and the flushing position 13 both work in a way of water inlet from the top and water outlet from the bottom. The reverse osmosis filters 3 of the working position 12 and the flushing position 13 are flipped up and down, so that the reverse osmosis filter 3 of the working position 12 performs normal filtration in the process of water inlet from the top and water outlet from the bottom, while the reverse osmosis filter 3 of the flushing position 13 performs backwashing in the process of water inlet from the top and water outlet from the bottom. The housing 1 is provided with a position adjustment and flipping mechanism 6, which is used to move the positions of the two reverse osmosis filters 3, and flip them up and down during the adjustment between the working position 12 and the flushing position 13. The way of feeding water from top to bottom to the reverse osmosis filter 3 in the working position 12 can make the water filtration in the reverse osmosis filter 3 more stable, and continuously filter the impurities in the water. At the same time, the way of feeding water from top to bottom to the reverse osmosis filter 3 in the flushing position 13 can make the impurities in the reverse osmosis filter 3 automatically fall after flushing, thereby improving the flushing effect. By flipping the reverse osmosis filters 3 in the working position 12 and the flushing position 13 up and down, the reverse osmosis filter 3 can filter more stably and flush more conveniently.

[0042] The lower outlet pipe 52 of the working position 12 is connected with an intermediate water pipe 53, and one end of the intermediate water pipe 53 away from the lower outlet pipe 52 of the working position 12 is connected to the upper inlet pipe 51 of the flushing position 13, and a pump 54 is installed on the intermediate water pipe 53. The pump 54 is used to send the water filtered by the reverse osmosis filter 3 of the working position 12 into the reverse osmosis filter 3 of the flushing position 13, so that the reverse osmosis filter 3 of the flushing position 13 can enter the backwashing to restore the filtering function of the reverse osmosis filter 3. When the pump 54 stops working, the pump 54 can prevent the upper inlet pipe 51 from connecting the two reverse osmosis filters 3, so that the filtered water of the reverse osmosis filter 3 of the working position 12 flows out normally from the lower outlet pipe 52. At the same time, a flushing pipe 55 is fixedly connected to the lower outlet pipe 52 of the flushing position 13, and the flushing pipe 55 is used to connect the coarse filter 2, so that the flushing pipe 55 backwashes the coarse filter 2, so that the coarse filter 2 can restore the filtering function. Since the water used for backwashing the reverse osmosis filter 3 can be used for backwashing the coarse filter 2, the reverse osmosis filter 3 and the coarse filter 2 can be backwashed at the same time, thus saving cleaning time and water resources.

[0043] refer to Figure 3 and Figure 4 The coarse filter 2 includes a cylindrical housing 21 and a filter screen 22 disposed in the housing 21. The filter screen 22 is also arranged in a cylindrical shape, and the center line of the filter screen 22 coincides with the center line of the housing 21. The filter screen 22 is arranged to rotate in the housing 21, and the axis of the filter screen 22 is arranged vertically. The top of the filter screen 22 adopts a sealing structure, and the side wall of the filter screen 22 performs coarse filtering on the raw water. The lower end of the filter screen 22 is an open structure and abuts against the bottom wall of the housing 21. A partition component 23 is arranged in the middle position inside the housing 21, and the partition component 23 is used to divide the cavity inside the housing 21 into an independent filter chamber 24 and a flushing chamber 25. The raw water inlet pipe 41 is connected to the bottom wall of the housing 21, and the raw water inlet pipe 41 is connected to the filter chamber 24, so that the water entering the raw water inlet pipe 41 is filtered from the inside of the filter screen 22 to the outside. A raw water outlet pipe 42 is connected to the side wall of the housing 21, and the raw water outlet pipe 42 is connected to the filter chamber 24, so that the raw water filtered by the filter 22 flows out of the coarse filter 2 through the raw water outlet pipe 42, and the raw water outlet pipe 42 is connected to the upper water inlet pipe 51 of the working position 12. A flushing water inlet pipe 43 is connected to the side wall of the housing 21, and the flushing water inlet pipe 43 is connected to the lower water outlet pipe 52 of the flushing position 13, so that the water flowing out of the reverse osmosis filter 3 of the flushing position 13 reaches the flushing chamber 25 inside the housing 21 through the lower water outlet pipe 52 and the flushing water inlet pipe 43, and flushes from the outside of the side wall of the filter 22 to the inside. A flushing water outlet pipe 44 for communicating with the filter chamber 24 is connected to the bottom wall of the housing 21, so that the water for flushing the filter 22 flows out through the flushing water outlet pipe 44.

[0044] A first power member 26 for driving the filter screen 22 to rotate is fixedly arranged on the top wall of the housing 21. The first power member 26 can be a stepper motor or a servo motor. The output shaft of the first power member 26 is coaxially fixedly connected with the filter screen 22. When the filter screen 22 needs to be backwashed, the filter screen 22 is horizontally rotated 180 degrees by the first power member 26, so that the part on the side wall of the filter screen 22 that needs to be washed is rotated into the washing chamber 25. At the same time, the part on the side wall of the filter screen 22 that has been washed is rotated to the filter chamber 24 for filtering the raw water.

[0045] The partition assembly 23 includes a fixed plate 231 and a telescopic plate 232. The fixed plate 231 is fixed to the inner side of the bottom wall of the housing 21, and the two sides of the fixed plate 231 face the filter chamber 24 and the flushing chamber 25 respectively. A slide groove 233 is provided inside the fixed plate 231. The telescopic plate 232 is slidably connected in the slide groove 233, and the telescopic plate 232 is arranged parallel to the fixed plate 231. The sliding direction of the telescopic plate 232 in the slide groove 233 is arranged along the radial direction of the housing 21, so that the telescopic plate 232 can be moved out of the slide groove 233 and abut against the inner wall of the filter screen 22, which is used to separate the filter chamber 24 and the flushing chamber 25. At the same time, a rubber pad 234 is fixedly provided on the side wall of the telescopic plate 232 extending out of the slide groove 233. The rubber pad 234 is used to be pressed on the inner wall of the filter screen 22 to improve the sealing effect of the filter chamber 24 and the flushing chamber 25. The cam 27 is provided at the center of the fixed plate 231, and the cam 27 is used to push the two telescopic plates 232 to slide to the outside of the slide groove 233. The cam 27 is connected to the second power member 28. The second power member 28 can adopt a stepping motor or a servo motor. When the cam 27 rotates 90 degrees under the action of the second power member 28, the cam 27 extends the two telescopic plates 232, and the telescopic plates 232 are pulled into the slide groove 233 by the spring connected to the telescopic plates 232, so that the rubber pad 234 on the telescopic plates 232 is separated from the inner wall of the filter screen 22, thereby facilitating the first power member 26 to rotate the filter screen 22, and the first power member 26 drives the filter screen 22 to rotate. In the process of reducing the scraping of impurities on the filter screen 22 by the partition assembly 23, until the filter screen 22 rotates 180 degrees, the cam 27 is rotated another 90 degrees by the second power member 28, so that the two telescopic plates 232 are again against the inner wall of the filter screen 22. In this embodiment, in order to facilitate the arrangement of the telescopic plate 232 in the fixed plate 231, a push rod 29 is fixedly arranged on the telescopic plate 232. The push rod 29 is arranged along the radial direction of the outer shell 21. One end of the push rod 29 passes through the interior of the fixed plate 231 and abuts against the cam 27, so that the cam 27 pushes the telescopic plate 232 through the push rod 29.

[0046] refer to Figure 5 and Figure 6A separation plate 14 is provided at the upper end and the lower end of the reverse osmosis filter 3, respectively. Two sealing covers 15 are fixedly provided on the two separation plates 14. The sealing covers 15 are used to cover the reverse osmosis filter 3. A sliding sleeve 16 is installed on the sealing cover 15. One end of the sliding sleeve 16 is fixedly connected with the sealing cover 15, and the other end is used to be sleeved on the upper water inlet pipe 51 or the lower water outlet pipe 52, so that the sealing cover 15 is connected with the upper water inlet pipe 51 and the lower water outlet pipe 52 through the sliding sleeve 16, and the sliding sleeve 16 slides on the upper water inlet pipe 51 and the lower water outlet pipe 52 along the vertical direction. The sliding sleeve 16 is sealed with the upper water inlet pipe 51 or the lower water outlet pipe 52. The separation plate 14 located above the reverse osmosis filter 3 moves upward, so that the two upper sealing covers 15 can be separated from the reverse osmosis filter 3, and the separation plate 14 located below the reverse osmosis filter 3 moves downward, so that the two lower sealing covers 15 can be separated from the reverse osmosis filter 3, so that the position adjustment and flipping mechanism 6 can exchange the positions of the two reverse osmosis filters 3.

[0047] The positioning and flipping mechanism 6 includes a fixed shaft 61, a rotating frame 62 and a horizontal rotating shaft 63. The fixed shaft 61 is vertically arranged, and two reverse osmosis filters 3 are arranged around the fixed shaft 61 at an interval of 180 degrees. The fixed shaft 61 is fixedly connected to the box body 1. The rotating frame 62 is rotatably arranged on the fixed shaft 61, and the rotation axis of the rotating frame 62 on the fixed shaft 61 coincides with the center line of the fixed shaft 61. There are two horizontal rotating shafts 63 and both are rotatably connected to the rotating frame 62. The horizontal rotating shaft 63 is horizontally arranged compared to the rotation axis of the rotating frame 62. The height of the center line of the horizontal rotating shaft 63 is the same as the height of the middle position of the reverse osmosis filter 3, so that when the horizontal rotating shaft 63 rotates 180 degrees around the center line of the horizontal rotating shaft 63, the reverse osmosis filter 3 flips up and down and the height of the reverse osmosis filter 3 remains unchanged. A first bevel gear 64 is coaxially fixed on the fixed shaft 61, and a second bevel gear 65 is coaxially fixed on the two horizontal rotating shafts 63. The first bevel gear 64 meshes with the second bevel gear 65, and the first bevel gear 64 and the second bevel gear 65 use gears with the same module and number of teeth. When in use, the rotating frame 62 is rotated, and the rotating frame 62 drives the horizontal rotating shaft 63 to rotate at the same time. Due to the meshing of the first bevel gear 64 and the second bevel gear 65, the second bevel gear 65 rolls on the first bevel gear 64, so that while rotating circumferentially around the fixed shaft 61, the second bevel gear 65 rotates at the same time, and the two reverse osmosis filters 3 are fixed to the two horizontal rotating shafts 63 one by one, respectively, so that the two reverse osmosis filters 3 are flipped up and down while the positions are exchanged.

[0048] A driving assembly 7 is arranged at the edge of the two separation plates 14. The driving assembly 7 is used to drive the two separation plates 14 to move up and down. The driving assembly 7 includes a driving motor 71 and a driving screw 72. The driving motor 71 can be a servo motor or a stepping motor. The driving motor 71 is fixed to the bottom wall of the box body 1. The driving motor 71 is arranged vertically. The driving screw 72 is coaxially fixed to the output shaft of the driving motor 71, and the upper end of the driving screw 72 is rotatably connected to the partition plate 11. The threads at both ends of the driving screw 72 are arranged in opposite directions, and the two separation plates 14 are respectively threadedly connected to the two ends of the driving screw 72. When the driving motor 71 drives the driving screw 72 to rotate, the two separation plates 14 can move closer to or farther away from each other under the action of the driving screw 72. In this embodiment, two driving screws 72 are provided, and three or four driving screws 72 may also be provided in other embodiments. Synchronous gears 73 are coaxially fixedly provided on the two driving screws 72, and a synchronous toothed belt 74 is provided between the synchronous gears 73. The synchronous toothed belt 74 is used to drive and connect the two synchronous gears 73, so that the driving motor 71 drives the two driving screws 72 to rotate at the same time through the synchronous toothed belt 74, so that the up and down movement of the separation plate 14 is more stable. When the two separation plates 14 are close to each other, the sealing cover 15 can be connected to the two reverse osmosis filters 3 through the separation plates 14, so that the two reverse osmosis filters 3 can be conveniently connected.

[0049] Continue to refer Figure 5 and Figure 6 A transmission assembly 8 is provided on a driving screw 72, and the transmission assembly 8 is used for transmission connection between the driving screw 72 and the rotating frame 62, so that the driving screw 72 drives the rotating frame 62 to rotate. The transmission assembly 8 includes a first transmission gear 81, and the first transmission gear 81 is arranged above the rotating frame 62. A rotating seat 82 is arranged on the inner side of the first transmission gear 81, and the rotating seat 82 is rotatably connected to the fixed shaft 61. At the same time, a one-way bearing 83 is arranged between the outer side of the rotating seat 82 and the first transmission gear 81. The one-way bearing 83 is used to make the first transmission gear 81 unidirectionally drive the rotating seat 82 to rotate on the fixed shaft 61. When the first transmission gear 81 rotates in the opposite direction, the one-way bearing 83 allows the first transmission gear 81 and the rotating seat 82 to rotate freely. A fixed disk 9 is disposed at the lower part of the rotating frame 62, and a spring pin 91 facing the rotating frame 62 is disposed on the upper surface of the fixed disk 9. The spring pin 91 is disposed vertically, and the upper end of the spring pin 91 is hemispherical. A hemispherical hole for matching the spring pin 91 is provided at the lower part of the rotating frame 62. In this embodiment, two spring pins 91 are arranged and are evenly arranged around the circumference of the fixed disk 9. The center of the fixed disk 9 coincides with the center of the fixed shaft 61. When the rotating frame 62 rotates half a circle each time, the spring pin 91 can be inserted into the hemispherical hole, so that the rotating frame 62 can be positioned by the spring pin 91, so that when the first transmission gear 81 rotates in the opposite direction, the rotating frame 62 does not rotate with the first transmission gear 81.

[0050] refer to Figure 7 and Figure 8 The transmission assembly 8 further includes a second transmission gear 84, a transmission toothed belt 85 and a driving cone 86. The second transmission gear 84 is rotatably arranged on the driving screw 72. The second transmission gear 84 can rotate relative to the driving screw 72. The axis of the second transmission gear 84 coincides with the axis of the driving screw 72. At the same time, the driving cone 86 is sleeved on the driving screw 72, and a vertical embedded groove is provided on the side wall of the driving screw 72 so that the driving cone 86 is slidably connected with the driving screw 72 through the embedded groove. The driving cone 86 rotates synchronously with the driving screw 72. The driving cone 86 can slide along the axis direction of the driving screw 72, and the center line of the driving cone 86 coincides with the center line of the driving screw 72. A tapered hole 87 is provided in the center of the second transmission gear 84. The tapered hole 87 is used to match the driving cone 86. In this embodiment, the upper end diameter of the tapered hole 87 is smaller than the lower end diameter of the tapered hole 87. The transmission toothed belt 85 is used to transmit and connect the first transmission gear 81 and the second transmission gear 84. Meanwhile, a separation spring 88 is arranged above the driving cone 86, and a coupling spring 89 is arranged below the driving cone 86. Both the separation spring 88 and the coupling spring 89 are sleeved on the driving screw 72. The upper end of the separation spring 88 abuts against the driving screw 72, and the lower end abuts against the upper end of the driving cone 86; the upper end of the coupling spring 89 abuts against the lower end of the driving cone 86, and the lower end abuts against the upper surface of the separation plate 14. When in use, the driving screw 72 first moves the two separation plates 14 away from each other, so that the sealing cover 15 is separated from the reverse osmosis filter 3, and at the same time drives the driving cone 86 to move upward, so that the driving cone 86 gradually fits into the tapered hole 87, and then drives the second transmission gear 84 through the friction between the driving cone 86 and the second transmission gear 84, so that the rotating frame 62 rotates around the fixed shaft 61; when the two reverse osmosis filters 3 are exchanged, the driving screw 72 is rotated in the opposite direction, and the second transmission gear 84 cannot rotate the rotating frame 62 in the opposite direction through the first transmission gear 81, so that the two separation plates 14 are close to each other. When the distance between the two separation plates 14 gradually increases, the elastic force of the spring 89 is reduced, and the separation spring 88 moves the driving cone 86 downward, so that the driving cone 86 is separated from the second transmission gear 84, so that the next time the driving cone 86 moves upward, the rotating frame 62 drives the rotation of the reverse osmosis filter 3 to lag behind the opening of the sealing cover 15, thereby ensuring the accuracy of the movement sequence.

[0051] The working process of this embodiment:

[0052] After being used for a period of time, the driving motor 71 first drives the driving screw 72 to rotate, and under the action of the driving screw 72, the two separation plates 14 are moved away from each other, and the sealing cover 15 is opened at the same time, and then the driving cone 86 rotates the rotating frame 62 through the second transmission gear 84 and the first transmission gear 81, and then the positions of the two reverse osmosis filters 3 are exchanged, and then the driving screw 72 is rotated in the opposite direction to make the two separation plates 14 approach each other, so that the sealing cover 15 connects the two reverse osmosis filters 3, and the reverse osmosis filters 3 in the working position 12 and the flushing position 13 are alternately positioned, so that the reverse osmosis filter 3 can be automatically restored through the backwashing process in the flushing position 13 after use, thereby reducing the replacement of the reverse osmosis filter 3.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A water purification device, comprising a housing, in which a coarse filter and a reverse osmosis filter are arranged, characterized in that: Also includes: A position adjustment and flipping mechanism, wherein the position adjustment and flipping mechanism is arranged inside the box; a working position and a flushing position are arranged inside the box, and each of the working position and the flushing position is provided with a reverse osmosis filter, and the position adjustment and flipping mechanism is used to swap the positions of the reverse osmosis filters at the working position and the flushing position and flip them up and down at the same time; A separation plate, wherein one separation plate is provided above and one separation plate is provided below the reverse osmosis filter, and a sealing cover for covering the upper end and the lower end of the reverse osmosis filter is installed on the separation plate; The coarse filter is connected to the upper end of the reverse osmosis filter through the sealing cover of the working position, the lower end of the reverse osmosis filter of the working position is connected to the upper end of the reverse osmosis filter of the flushing position through the intermediate water pipe, and a pump is arranged on the intermediate water pipe; The positioning and flipping mechanism includes a fixed shaft, a rotating frame and a horizontal rotating shaft. The fixed shaft is vertically fixed in the box body. The rotating frame is rotatably set on the fixed shaft. The center line of the rotating frame coincides with the center line of the fixed shaft. Two horizontal rotating shafts are provided and the center lines of the two horizontal rotating shafts are horizontal and on the same straight line. Two reverse osmosis filters are fixed on the horizontal rotating shaft. A first bevel gear is coaxially fixed on the fixed shaft, and a second bevel gear is coaxially fixed on the horizontal rotating shaft. The first bevel gear is meshed with the second bevel gear.

2. A water purification device according to claim 1, characterized in that: A driving assembly is provided at the edge of the separation plate, and the driving assembly includes a driving motor and a driving screw. The driving motor is fixed in the box body, the driving screw is vertically arranged, and the threads at both ends of the driving screw are arranged in opposite directions. The two separation plates arranged upper and lower are respectively threadedly connected to the two ends of the driving screw, and the driving screw is driven by the driving motor.

3. A water purification device according to claim 2, characterized in that: A transmission assembly is arranged between the driving screw and the rotating frame, and the transmission assembly includes a first transmission gear, a second transmission gear, a transmission toothed belt and a driving cone. The first transmission gear is connected to the rotating frame through a one-way bearing, the second transmission gear is rotationally connected to the driving screw, the driving cone is vertically slidingly connected to the driving screw and rotates synchronously with the driving screw, and a conical hole for matching with the driving cone is opened at the center of the second transmission gear. When the driving cone is connected in the conical hole, the second transmission gear drives the first transmission gear to rotate through the transmission toothed belt.

4. A water purification device according to claim 3, characterized in that: A separation spring is arranged above the driving cone, and a coupling spring is arranged below the driving cone. The upper end of the separation spring abuts against the driving screw, and the lower end abuts against the driving cone. The separation spring is used to abut the driving cone and separate the second transmission gear. One end of the coupling spring abuts against the driving cone, and the other end abuts against the separation plate.

5. A water purification device according to any one of claims 1 to 4, characterized in that: The coarse filter comprises a shell and a filter screen rotatably arranged in the shell, a partition assembly is arranged in the shell, a filter cavity and a flushing cavity are formed inside the shell by the partition assembly, and a first power member for driving the filter screen to rotate is fixedly arranged on the shell.

6. A water purification device according to claim 5, characterized in that: The partition assembly includes a fixed plate and a telescopic plate, the fixed plate is fixed at the center position of the bottom wall in the shell, a slide groove is opened inside the fixed plate, the telescopic plate is slidably connected in the slide groove, and the telescopic plate slides in the slide groove along the radial direction of the shell, a rubber pad is fixedly provided on one side of the telescopic plate facing the inner wall of the filter screen, a cam is provided at the center of the fixed plate, the cam is connected to the second power member, and the cam drives the telescopic plate to move to the outside of the slide groove through the second power member.

7. A water purification device according to claim 6, characterized in that: The outer shell is connected with a raw water inlet pipe, a raw water outlet pipe, a flushing inlet pipe and a flushing outlet pipe, the raw water inlet pipe and the raw water outlet pipe are connected to the filter cavity, the flushing inlet pipe and the flushing outlet pipe are connected to the flushing cavity, the raw water inlet pipe and the flushing outlet pipe are connected to the inner side of the filter net, and the raw water outlet pipe and the flushing outlet pipe are connected to the outer side of the filter net.

8. A water purification device according to claim 7, characterized in that: The flushing water inlet pipe is communicated with the lower end of the reverse osmosis filter at the flushing position, and the reverse osmosis filter and the coarse filter are backwashed simultaneously.

Images