Reverse osmosis filtering device

Abstract

The invention relates to the technical field of reverse osmosis, and discloses a reverse osmosis filtering device which comprises a base, a first liquid storage barrel, a second liquid storage barrel and a filtering assembly, a first sealing ring is movably arranged in the barrel wall of the first liquid storage barrel; the second liquid storage barrel is located on one side of the opening of the first liquid storage barrel and is concentric with the first liquid storage barrel, a gap is formed between the second liquid storage barrel and the first liquid storage barrel, and a second sealing ring is movably arranged in the barrel wall of the second liquid storage barrel; the filtering assembly is selectively arranged in the gap, and the filtering assembly is used for communicating the internal space of the first liquid storage barrel and the internal space of the second liquid storage barrel and filtering the solution in the second liquid storage barrel. According to the present invention, the filtration assembly is arranged and is selectively arranged between the first liquid storage barrel and the second liquid storage barrel, such that when different reverse osmosis membranes are replaced, only the filtration assembly needs to be moved out of the gap, and the reverse osmosis membranes are taken out and replaced so as to achieve the simple and convenient operation.

Description

Technical Field

[0001] The present invention relates to the technical field of reverse osmosis, and more particularly to a reverse osmosis filtering device. Background Art

[0002] Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure difference as a driving force to separate solvents from solutions. When pressure is applied to the liquid on one side of the membrane, when the pressure exceeds its osmotic pressure, the solvent will reversely permeate in the opposite direction of natural osmosis. As a result, the permeated solvent, i.e., permeate, is obtained on the low-pressure side of the membrane; and the concentrated solution, i.e., concentrate, is obtained on the high-pressure side. If reverse osmosis is used to treat seawater, fresh water is obtained on the low-pressure side of the membrane, and brine is obtained on the high-pressure side. Because it is in the opposite direction of natural osmosis, it is called reverse osmosis. According to the different osmotic pressures of various materials, a reverse osmosis pressure greater than the osmotic pressure can be used, i.e., reverse osmosis method, to achieve the purpose of separation, extraction, purification and concentration.

[0003] Reverse osmosis technology is a common filtering method among the existing methods. However, when the existing reverse osmosis filtration is used to filter different substances, the filter screens with different filter holes must be replaced. However, since the reverse osmosis membrane is usually arranged inside the reverse osmosis device, the operating space is limited and the replacement is inconvenient. Summary of the invention

[0004] The present invention provides a reverse osmosis filtering device, which solves the technical problem in the related art that the reverse osmosis membrane is usually arranged inside the reverse osmosis device, the operation space is limited, and the replacement is inconvenient.

[0005] The present invention provides a reverse osmosis filtering device, comprising: a base; a first liquid storage barrel, the first liquid storage barrel is arranged on the base, the first liquid storage barrel is an internally hollow cylindrical structure and one end of which is an open structure, and a first sealing ring is movably arranged inside the barrel wall of the first liquid storage barrel; a second liquid storage barrel, the first liquid storage barrel is arranged on the base, the second liquid storage barrel is an internally hollow cylindrical structure and both ends of which are open structures, the second liquid storage barrel is located on one side of the opening of the first liquid storage barrel and is arranged concentrically with the first liquid storage barrel, a gap is arranged between the second liquid storage barrel and the first liquid storage barrel, and a second sealing ring is movably arranged inside the barrel wall of the second liquid storage barrel; a filtering component, the filtering component can be selectively arranged in the gap, the filtering component is used to connect the internal spaces of the first liquid storage barrel and the second liquid storage barrel, and filter the solution in the second liquid storage barrel, the filtering component comprises: an annular first clamping plate selectively sealingly matched with the first sealing ring, an annular second clamping plate selectively sealingly matched with the second sealing ring, and a reverse osmosis membrane, and the reverse osmosis membrane is arranged between the first clamping plate and the second clamping plate.

[0006] As a further improvement of the present invention, the reverse osmosis filtration device further comprises: a first screw, a first annular moving groove is provided in the barrel wall of the first liquid storage barrel along its axial direction, the first moving groove is communicated with the end face of one end of the opening of the first liquid storage barrel, a first sealing ring is slidably connected in the first moving groove, a first driving block is arranged on the first sealing ring, a first mounting seat is arranged on the first liquid storage barrel, one end of the first screw is rotatably connected with the first driving block, the other end of the first screw passes through the first mounting seat and is fixedly connected with a first knob, and the first screw is threadedly connected with the first mounting seat; the reverse osmosis filtration device further comprises: a second screw, a second annular moving groove is provided in the barrel wall of the second liquid storage barrel along its axial direction, the second moving groove is communicated with the end face of one end of the second liquid storage barrel facing the first liquid storage barrel, a second sealing ring is slidably connected in the second moving groove, a second driving block is arranged on the second sealing ring, a second mounting seat is arranged on the second liquid storage barrel, one end of the second screw is rotatably connected with the second driving block, the other end of the second screw passes through the second mounting seat and is fixedly connected with a second knob, and the second screw is threadedly connected with the second mounting seat.

[0007] As a further improvement of the present invention, an annular groove is provided on the side of the first clamping plate facing the second clamping plate, and an annular protrusion is provided on the side of the second clamping plate facing the first clamping plate, and the annular protrusion presses the edge of the reverse osmosis membrane into the annular groove.

[0008] As a further improvement of the present invention, the reverse osmosis filtration device also includes: two fixed seats, a connecting shaft and a driving rod, the two fixed seats are arranged in parallel on the base, the two ends of the connecting shaft are respectively rotatably connected to the two fixed seats, one end of the driving rod is fixedly connected to the connecting shaft, and the other end of the driving rod is fixedly connected to the second clamping plate.

[0009] As a further improvement of the present invention, a limit plate is provided on the base, and the limit plate cooperates with the driving rod to limit the driving rod after the driving rod drives the filter assembly to reach the gap.

[0010] As a further improvement of the present invention, a sealing ring is provided on an end surface of the first sealing ring facing the first clamping plate, and a sealing ring is provided on an end surface of the second sealing ring facing the second clamping plate.

[0011] As a further improvement of the present invention, the filter assembly further includes: a countersunk bolt, a first threaded hole is formed on the first clamping plate, a second threaded hole is formed on the second clamping plate, and the countersunk bolt passes through the second threaded hole and is threadedly engaged with the first threaded hole.

[0012] As a further improvement of the present invention, a first clamping groove and a second clamping groove are provided on the base, and the reverse osmosis filtration device further comprises: a first fixing assembly and a second fixing assembly; the first fixing assembly comprises: a first double-headed screw, two first nut seats and two first fixing plates, one end of the first double-headed screw is rotatably connected to the inner wall of the first clamping groove, and the other end thereof passes through the base and is fixedly connected to a third knob, the axis of the first double-headed screw is perpendicular to the axis of the first liquid storage barrel, the two first nut seats are respectively arranged on both sides of the first double-headed screw, and the two first fixing plates are respectively fixed On the two first nut seats, the first liquid storage barrel is selectively clamped and fixed; the second fixing assembly includes: a second double-headed screw, two second nut seats and two second fixing plates, one end of the second double-headed screw is rotatably connected to the inner wall of the second clamping groove, and the other end thereof passes through the base and is fixedly connected to the fourth knob, the axis of the second double-headed screw is perpendicular to the axis of the second liquid storage barrel, the two second nut seats are respectively arranged on both sides of the second double-headed screw, and the two second fixing plates are respectively fixed on the two second nut seats to selectively clamp and fix the second liquid storage barrel.

[0013] As a further improvement of the present invention, in the axial direction of the first liquid storage barrel, the length of the first nut seat is the same as the length of the first clamping groove, and the length of the second nut seat is the same as the length of the second clamping groove.

[0014] As a further improvement of the present invention, the reverse osmosis filtration device also includes: a pressurizing component, used to pressurize the solution in the second liquid storage barrel, the pressurizing component includes: a support seat, a cylinder and a pressurizing plate, the support seat is arranged on the side of the base away from the first liquid storage barrel, the cylinder is arranged on the support seat, and the telescopic end of the cylinder is fixedly connected to the pressurizing plate to drive the pressurizing plate to move inside the second liquid storage barrel.

[0015] The beneficial effects of the present invention are: 1. The present invention sets a filter assembly, and the filter assembly can be selectively set between the first liquid storage barrel and the second liquid storage barrel. In this way, when it is necessary to replace a different reverse osmosis membrane, it is only necessary to move the filter assembly out from between the first liquid storage barrel and the second liquid storage barrel, and take out the reverse osmosis membrane for replacement, without having to operate inside the first liquid storage barrel or the second liquid storage barrel, and the operation is simpler and more convenient.

[0016] 2. The present invention respectively arranges a first sealing ring and a second sealing ring in the first liquid storage barrel and the second liquid storage barrel, and the first sealing ring and the second sealing ring can clamp and seal the filter assembly, thereby improving the sealing between the first liquid storage barrel, the second liquid storage barrel and the filter assembly, so that the reverse osmosis work can be better performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a reverse osmosis filtration device from a first angle according to an embodiment of the present invention; Figure 2 is a second angle structural schematic diagram of a reverse osmosis filtration device according to an embodiment of the present invention; Figure 3 is a schematic diagram of a front cross-sectional structure of a reverse osmosis filtration device according to an embodiment of the present invention; Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 is a first side cross-sectional structural schematic diagram of a reverse osmosis filtration device according to an embodiment of the present invention; Figure 6 is a second side cross-sectional structural schematic diagram of a reverse osmosis filtration device according to an embodiment of the present invention; Figure 7 yes Figure 8 A schematic diagram of the enlarged structure at B in the middle; Figure 8 is a third side cross-sectional structural schematic diagram of a reverse osmosis filtration device according to an embodiment of the present invention; Fig. 9 is a schematic diagram of a top cross-sectional structure of a reverse osmosis filtration device according to an embodiment of the present invention; Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure at point C in the middle.

[0018] In the figure: 1, base; 101, first clamping groove; 102, second clamping groove; 2, first liquid storage barrel; 21, discharge port; 22, first sealing ring; 221, first drive block; 23, first movable groove; 24, first mounting seat; 3, second liquid storage barrel; 31, feed port; 32, second sealing ring; 321, second drive block; 33, second movable groove; 34, second mounting seat; 4, filter assembly; 41, first clamping plate; 411, annular groove; 412, first threaded hole; 42, second clamping plate; 421, annular protrusion; 422, second threaded hole; 43, reverse osmosis membrane ; 5. First screw; 6. First knob; 7. Second screw; 8. Second knob; 9. Connecting shaft; 10. Driving rod; 11. Limiting plate; 12. Sealing ring; 13. Countersunk bolt; 14. First fixing assembly; 141. First double-headed screw; 142. First nut seat; 143. First fixing plate; 144. Third knob; 15. Second fixing assembly; 151. Second double-headed screw; 152. Second nut seat; 153. Second fixing plate; 154. Fourth knob; 16. Pressurizing assembly; 161. Support seat; 162. Cylinder; 163. Pressurizing plate; 17. Fixing seat. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0020] like Figure 1-Figure 10 As shown, a reverse osmosis filtering device includes a base 1, a first liquid storage barrel 2, a second liquid storage barrel 3 and a filtering assembly 4.

[0021] The base 1 mainly plays the role of support and installation. The first liquid storage barrel 2 mainly plays the role of storing the solvent after reverse osmosis. The second liquid storage barrel 3 mainly plays the role of storing the solution before reverse osmosis. The filter component 4 mainly plays the role of filtering. When the solution inside the second liquid storage barrel 3 is pressurized, the solution in the second liquid storage barrel 3 will be filtered through the filter component 4, so that the solvent in the solution can be pressed into the first liquid storage barrel 2.

[0022] Specifically, Figure 1-Figure 4As shown, the first liquid storage barrel 2 is a cylindrical structure with a hollow interior and an open structure at one end. That is, one end of the first liquid storage barrel 2 is an open structure and the other end is a closed structure, so that the solvent can flow into the interior of the first liquid storage barrel 2 from its open end. In addition, a discharge port 21 is provided at the top of the first liquid storage barrel 2, and a first sealing cover is provided at the discharge port 21. During the reverse osmosis process, the discharge port 21 can be blocked by the first sealing cover. When the reverse osmosis operation is completed, the first sealing cover is taken out, so that the solvent in the first liquid storage barrel 2 can be taken out. The first sealing cover and the discharge port 21 can be threadedly connected.

[0023] In addition, a first sealing ring 22 is movably provided inside the barrel wall of the first liquid storage barrel 2 , that is, the first sealing ring 22 can move inside the barrel wall of the first liquid storage barrel 2 .

[0024] Specifically, the reverse osmosis filtration device also includes a first screw 5, a first annular moving groove 23 is provided in the barrel wall of the first liquid storage barrel 2 along its axial direction, the first moving groove 23 is connected to the end face of the opening end of the first liquid storage barrel 2, a first sealing ring 22 is slidably connected in the first moving groove 23, the first sealing ring 22 is an annular structure, a first driving block 221 is fixedly connected to the outer peripheral wall of the first sealing ring 22, a first mounting seat 24 is fixedly connected to the outer peripheral wall of the first liquid storage barrel 2, one end of the first screw 5 is rotatably connected to the first driving block 221, the other end of the first screw 5 passes through the first mounting seat 24 and is fixedly connected to the first knob 6, and the first screw 5 is threadedly connected to the first mounting seat 24. It should be noted that the first driving block 221 and the first mounting seat 24 can be arranged on the side of the first liquid storage barrel 2 facing the base 1, so that the interference with other components and operators can be reduced, and it is more convenient to use. Moreover, a through hole is provided at the bottom of the first moving groove 23 along the axial direction of the first liquid storage barrel 2, and the first driving block 221 can move along the through hole.

[0025] During use, when the first sealing ring 22 needs to move, the first knob 6 is rotated, and the rotation of the first knob 6 can drive the first screw 5 to rotate, and the first screw 5 will move in the first mounting seat 24, and drive the first driving block 221 to move along the axial direction of the first liquid storage barrel 2 in the through hole, and the movement of the first driving block 221 can further drive the first sealing ring 22 to move in the first moving groove 23. By changing the rotation direction of the first knob 6, the moving direction of the first sealing ring 22 can be changed.

[0026] In addition, the second liquid storage barrel 3 is also a cylindrical structure with a hollow interior and both ends thereof are open structures. That is to say, both ends of the second liquid storage barrel 3 are open structure designs, and the second liquid storage barrel 3 is located on one side of the opening of the first liquid storage barrel 2 and is arranged concentrically with the first liquid storage barrel 2. In this way, the solution in the second liquid storage barrel 3 can be pressurized by the opening of one end of the second liquid storage barrel 3 away from the first liquid storage barrel 2, and then the solvent can enter the first liquid storage barrel 2 from the opening of one end of the second liquid storage barrel 3 close to the first liquid storage barrel 2. A feed port 31 is provided on the second liquid storage barrel 3, and a second sealing cover is provided at the feed port 31. Before the reverse osmosis operation, the second sealing cover is taken out, and the solution is poured into the interior of the second liquid storage barrel 3 from the feed port 31, and then the feed port 31 is blocked by the second sealing cover for reverse osmosis operation. After the reverse osmosis process, the second sealing cover can be taken out to pour out the remaining solution and solute in the second liquid storage barrel 3. The second sealing cover and the feed port 31 can be threaded.

[0027] In addition, a second sealing ring 32 is movably provided inside the barrel wall of the second liquid storage barrel 3 , that is, the second sealing ring 32 can move inside the barrel wall of the first liquid storage barrel 2 .

[0028] Specifically, the reverse osmosis filtration device further includes a second screw 7, a second annular movable groove 33 is provided in the barrel wall of the second liquid storage barrel 3 along its axial direction, the second movable groove 33 is connected to the end face of the second liquid storage barrel 3 facing the first liquid storage barrel 2, a second sealing ring 32 is slidably connected in the second movable groove 33, the second sealing ring 32 is an annular structure, a second driving block 321 is fixedly connected to the outer peripheral wall of the second sealing ring 32, a second mounting seat 34 is fixedly connected to the outer peripheral wall of the second liquid storage barrel 3, one end of the second screw 7 is rotatably connected to the second driving block 321, the other end of the second screw 7 passes through the second mounting seat 34 and is fixedly connected to the second knob 8, and the second screw 7 is threadedly connected to the second mounting seat 34. It should be noted that the second driving block 321 and the second mounting seat 34 can be arranged on the side of the second liquid storage barrel 3 facing the base 1, which can reduce interference with other components and operators and is more convenient to use. Furthermore, a through hole is also formed at the bottom of the second movable groove 33 along the axial direction of the second liquid storage barrel 3 , and the second driving block 321 can move along the through hole.

[0029] During use, when the second sealing ring 32 needs to move, the second knob 8 is rotated, and the rotation of the second knob 8 can drive the second screw 7 to rotate, and the second screw 7 will move in the first mounting seat 24, and drive the second driving block 321 to move along the axial direction of the second liquid storage barrel 3 in the through hole, and the movement of the second driving block 321 can drive the second sealing ring 32 to move in the second moving groove 33. By changing the rotation direction of the second knob 8, the moving direction of the second sealing ring 32 can be changed.

[0030] Further, a gap is provided between the second liquid storage barrel 3 and the first liquid storage barrel 2, and the filter assembly 4 can be selectively provided in the gap. The filter assembly 4 is used to connect the internal spaces of the first liquid storage barrel 2 and the second liquid storage barrel 3, and filter the solution that penetrates into the first liquid storage barrel 2 from the second liquid storage barrel 3. The filter assembly 4 includes: an annular first clamping plate 41 selectively sealed with the first sealing ring 22, an annular second clamping plate 42 selectively sealed with the second sealing ring 32, and a reverse osmosis membrane 43, and the reverse osmosis membrane 43 is provided between the first clamping plate 41 and the second clamping plate 42.

[0031] That is to say, the filter assembly 4 can be arranged in the gap or not. When the solution needs to be subjected to reverse osmosis operation, the filter assembly 4 needs to be arranged in the gap to filter the solution in the second liquid storage barrel 3. When the reverse osmosis operation is not required and the reverse osmosis membrane 43 needs to be replaced, the filter assembly 4 can be moved out of the gap, which is more convenient for operation.

[0032] Specifically, when reverse osmosis operation is required, the filter assembly 4 is first placed in the gap, and the axis of the filter assembly 4 is in the final positioning position when it is colinear with the axis of the first liquid storage barrel 2 and the second liquid storage barrel 3. At this time, the first knob 6 and the second knob 8 are rotated separately or simultaneously, and the first knob 6 and the second knob 8 respectively drive the first sealing ring 22 and the second sealing ring 32 to move until the first sealing ring 22 clamps the first clamping plate 41 and the second sealing ring 32 clamps the second clamping plate 42, so that the filter assembly 4 can be fixed, so that the filter assembly 4 can perform the filtering operation better.

[0033] When the reverse osmosis membrane 43 needs to be replaced, the first knob 6 and the second knob 8 are rotated in opposite directions. The first knob 6 and the second knob 8 respectively drive the first sealing ring 22 and the second sealing ring 32 to move, and the first sealing ring 22 and the second sealing ring 32 begin to separate from the first clamping plate 41 and the second clamping plate 42 respectively, so that the filter assembly 4 can be taken out, and then the reverse osmosis membrane 43 can be replaced, which is more convenient to use.

[0034] As an optional embodiment, Figure 4 and Fig.10As shown, the first clamping plate 41 is provided with an annular groove 411 on one side facing the second clamping plate 42, and the second clamping plate 42 is provided with an annular protrusion 421 on one side facing the first clamping plate 41, and the annular protrusion 421 presses the edge of the reverse osmosis membrane 43 inside the annular groove 411. The annular protrusion 421 is used to press the edge of the reverse osmosis membrane 43 inside the annular groove 411, so that the reverse osmosis membrane 43 can be set more firmly and stably, so that the reverse osmosis membrane 43 can perform filtering work better. Moreover, through the cooperation between the annular protrusion 421 and the annular groove 411, the sealing between the first clamping plate 41 and the second clamping plate 42 can be improved, so that the outflow of the solution during the reverse osmosis process can be reduced.

[0035] As an optional embodiment, Figure 4 and Figure 8 As shown, a sealing ring 12 is provided on one end surface of the first sealing ring 22 facing the first clamping plate 41, and on one end surface of the second sealing ring 32 facing the second clamping plate 42. The provision of the sealing ring 12 can improve the sealing between the first sealing ring 22 and the first clamping plate 41, and between the second sealing ring 32 and the second clamping plate 42, thereby reducing the outflow of the solution during the reverse osmosis process.

[0036] As an optional embodiment, Figure 4 As shown, the filter assembly 4 further includes: a countersunk bolt 13, a first threaded hole 412 is formed on the first clamping plate 41, a second threaded hole 422 is formed on the second clamping plate 42, and the countersunk bolt 13 passes through the second threaded hole 422 and is threadedly engaged with the first threaded hole 412. The first clamping plate 41 and the second clamping plate 42 are fixedly connected by the countersunk bolt 13, so that the loading and unloading is faster and more convenient, and the reverse osmosis membrane 43 is easy to replace, and the countersunk bolt 13 can reduce the interference between the second clamping plate 42 and the second sealing ring 32.

[0037] As an optional embodiment, the reverse osmosis filtration device also includes: two fixed seats 17, a connecting shaft 9 and a driving rod 10, the two fixed seats 17 are arranged in parallel on the base 1, the two ends of the connecting shaft 9 are respectively rotatably connected to the two fixed seats 17, one end of the driving rod 10 is fixedly connected to the connecting shaft 9, and the other end of the driving rod 10 is fixedly connected to the second clamping plate 42.

[0038] When in use, since the filter assembly 4 is clamped between the first liquid storage barrel 2 and the second liquid storage barrel 3, it is inconvenient to take, the filter assembly 4 can be moved by manually operating the driving rod 10 without directly operating the filter assembly 4. This makes it more convenient to use and it is easy to control the position of the filter assembly 4.

[0039] As an optional embodiment, Figure 8As shown, a limit plate 11 is provided on the base 1, and the limit plate 11 cooperates with the driving rod 10 to limit the driving rod 10 after the driving rod 10 drives the filter assembly 4 to reach the gap. It should be noted that the top of the limit plate 11 is an inclined structure. When the driving rod 10 is manually operated to adjust the position of the filter assembly 4, when the filter assembly 4 is completely placed in the gap, the top of the limit plate 11 just contacts the driving rod 10, thereby limiting the driving rod 10 from continuing to move, thereby making the position of the filter assembly 4 more accurate, and adjusting the position of the filter assembly 4 faster.

[0040] In addition, a first clamping groove 101 and a second clamping groove 102 are formed on the base 1 , and the reverse osmosis filtering device further includes: a first fixing component 14 and a second fixing component 15 .

[0041] Specifically, Figure 2 and Figure 3 As shown, the first fixing assembly 14 includes: a first double-headed screw 141, two first nut seats 142 and two first fixing plates 143. It should be noted that the first double-headed screw 141 has threads in opposite directions on both sides. One end of the first double-headed screw 141 is rotatably connected to the inner wall of the first clamping groove 101, and the other end thereof passes through the base 1 and is fixedly connected to the third knob 144. The axis of the first double-headed screw 141 is perpendicular to the axis of the first liquid storage barrel 2. The two first nut seats 142 are respectively threadedly connected to the two sides of the first double-headed screw 141, and the two first fixing plates 143 are respectively fixed on the two first nut seats 142 to selectively clamp and fix the first liquid storage barrel 2.

[0042] During use, when the first liquid storage barrel 2 needs to be fixed, the first liquid storage barrel 2 is first manually placed between the two first fixing plates 143, and then the third knob 144 is turned, and the third knob 144 can drive the first double-headed screw 141 to rotate, and the rotation of the first double-headed screw 141 will drive the two first nut seats 142 to approach each other, and the approach of the two first nut seats 142 will drive the two first fixing plates 143 to approach each other, so that the first liquid storage barrel 2 can be fixed. When the first liquid storage barrel 2 needs to be released, the third knob 144 can be turned in the opposite direction.

[0043] Similarly, the second fixing assembly 15 includes: a second double-headed screw 151, two second nut seats 152 and two second fixing plates 153. It should be noted that the second double-headed screw 151 has threads in opposite directions on both sides. One end of the second double-headed screw 151 is rotatably connected to the inner wall of the second clamping groove 102, and the other end thereof passes through the base 1 and is fixedly connected to the fourth knob 154. The axis of the second double-headed screw 151 is perpendicular to the axis of the second liquid storage barrel 3. The two second nut seats 152 are respectively threadedly connected to the two sides of the second double-headed screw 151, and the two second fixing plates 153 are respectively fixed on the two second nut seats 152 to selectively clamp and fix the second liquid storage barrel 3.

[0044] During use, when the second liquid storage barrel 3 needs to be fixed, first manually place the second liquid storage barrel 3 between the two second fixing plates 153, and then turn the fourth knob 154, the fourth knob 154 can drive the second double-headed screw 151 to rotate, the rotation of the second double-headed screw 151 will drive the two second nut seats 152 to approach each other, and the two second nut seats 152 will approach each other, so that the second liquid storage barrel 3 can be fixed. When the second liquid storage barrel 3 needs to be released, the fourth knob 154 can be turned in the opposite direction. It should be noted that the models and sizes of the components in the first fixing assembly 14 and the second fixing assembly 15 can be set to be the same.

[0045] As an optional embodiment, in the axial direction of the first liquid storage barrel 2, the length of the first nut seat 142 is the same as the length of the first clamping groove 101, and the length of the second nut seat 152 is the same as the length of the second clamping groove 102. In this way, when the first nut seat 142 moves along the axial direction of the first double-headed screw 141, the first clamping groove 101 can limit the first nut seat 142 to prevent the first nut seat 142 from turning over, thereby making the movement of the first fixed plate 143 more stable. Similarly, when the second nut seat 152 moves along the axial direction of the second double-headed screw 151, the second clamping groove 102 can limit the second nut seat 152 to prevent the second nut seat 152 from turning over, thereby making the movement of the second fixed plate 153 more stable. In this way, the first liquid storage barrel 2 and the second liquid storage barrel 3 can be better fixed.

[0046] In addition, if Figure 1 and Figure 2As shown, the reverse osmosis filtration device also includes a pressurizing component 16 for pressurizing the liquid in the second liquid storage barrel 3, and the pressurizing component 16 includes: a support seat 161, a cylinder 162 and a pressurizing plate 163. It should be noted that the pressurizing plate 163 is a cylindrical structure, and the diameter of the pressurizing plate 163 is the same as the inner diameter of the second liquid storage barrel 3. The support seat 161 is fixedly connected to the side of the base 1 away from the first liquid storage barrel 2, the cylinder 162 is fixedly connected to the support seat 161, and the telescopic end of the cylinder 162 is fixedly connected to the pressurizing plate 163 to drive the pressurizing plate 163 to move inside the second liquid storage barrel 3.

[0047] When reverse osmosis work is required, the first fixing component 14 and the second fixing component 15 are first used to fix the first liquid storage barrel 2 and the second liquid storage barrel 3 respectively, and then the filter component 4 is fixed in the gap, and then the cylinder 162 is driven to extend the pressure plate 163 to the end of the second liquid storage barrel 3 away from the first liquid storage barrel 2, and then the solution is poured into the second liquid storage barrel 3 through the feed port 31, and the feed port 31 and the discharge port 21 are sealed, and finally the cylinder 162 continues to drive the pressure plate 163 to move into the second liquid storage barrel 3 to squeeze the solution, so that the solvent can pass through the reverse osmosis membrane 43 into the first liquid storage barrel 2.

[0048] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A reverse osmosis filtration device, characterized in that: include: Base (1); A first liquid storage barrel (2), the first liquid storage barrel (2) being arranged on the base (1), the first liquid storage barrel (2) being an internally hollow cylindrical structure and having an open structure at one end, and a first sealing ring (22) being movably arranged inside the barrel wall of the first liquid storage barrel (2); A second liquid storage barrel (3), wherein the first liquid storage barrel (2) is arranged on the base (1), the second liquid storage barrel (3) is a cylindrical structure with a hollow interior and both ends of the second liquid storage barrel (3) are open structures, the second liquid storage barrel (3) is located on one side of the opening of the first liquid storage barrel (2) and is arranged concentrically with the first liquid storage barrel (2), a gap is arranged between the second liquid storage barrel (3) and the first liquid storage barrel (2), and a second sealing ring (32) is movably arranged inside the barrel wall of the second liquid storage barrel (3); A filter assembly (4), wherein the filter assembly (4) can be selectively arranged in the gap, and the filter assembly (4) is used to connect the internal spaces of the first liquid storage barrel (2) and the second liquid storage barrel (3), and filter the solution in the second liquid storage barrel (3), and the filter assembly (4) comprises: an annular first clamping plate (41) selectively sealingly matched with the first sealing ring (22), an annular second clamping plate (42) selectively sealingly matched with the second sealing ring (32), and a reverse osmosis membrane (43), and the reverse osmosis membrane (43) is arranged between the first clamping plate (41) and the second clamping plate (42).

2. A reverse osmosis filtration device according to claim 1, characterized in that: The reverse osmosis filtration device further comprises: a first screw (5); a first annular movable groove (23) is provided in the barrel wall of the first liquid storage barrel (2) along its axial direction; the first movable groove (23) is communicated with the end surface of an open end of the first liquid storage barrel (2); a first sealing ring (22) is slidably connected in the first movable groove (23); a first driving block (221) is provided on the first sealing ring (22); a first mounting seat (24) is provided on the first liquid storage barrel (2); one end of the first screw (5) is rotatably connected to the first driving block (221); the other end of the first screw (5) passes through the first mounting seat (24) and is fixedly connected to a first knob (6); the first screw (5) is threadedly connected to the first mounting seat (24); The reverse osmosis filtration device further comprises: a second screw (7); a second annular movable groove (33) is provided in the barrel wall of the second liquid storage barrel (3) along its axial direction; the second movable groove (33) is communicated with the end surface of the second liquid storage barrel (3) facing the first liquid storage barrel (2); a second sealing ring (32) is slidably connected in the second movable groove (33); a second driving block (321) is provided on the second sealing ring (32); a second mounting seat (34) is provided on the second liquid storage barrel (3); one end of the second screw (7) is rotatably connected to the second driving block (321); the other end of the second screw (7) passes through the second mounting seat (34) and is fixedly connected to the second knob (8); the second screw (7) is threadedly connected to the second mounting seat (34).

3. A reverse osmosis filtration device according to claim 1, characterized in that: An annular groove (411) is provided on one side of the first clamping plate (41) facing the second clamping plate (42), and an annular protrusion (421) is provided on one side of the second clamping plate (42) facing the first clamping plate (41), wherein the annular protrusion (421) presses the edge of the reverse osmosis membrane (43) into the annular groove (411).

4. A reverse osmosis filtration device according to claim 1, characterized in that: The reverse osmosis filtration device further comprises: two fixing seats (17), a connecting shaft (9) and a driving rod (10); the two fixing seats (17) are arranged in parallel on the base (1); the two ends of the connecting shaft (9) are rotatably connected to the two fixing seats (17) respectively; one end of the driving rod (10) is fixedly connected to the connecting shaft (9); and the other end of the driving rod (10) is fixedly connected to the second clamping plate (42).

5. A reverse osmosis filtration device according to claim 4, characterized in that: A limit plate (11) is provided on the base (1), and the limit plate (11) cooperates with the drive rod (10) to limit the drive rod (10) after the drive rod (10) drives the filter assembly (4) to reach the gap.

6. A reverse osmosis filtration device according to claim 1, characterized in that: A sealing ring (12) is provided on one end surface of the first sealing ring (22) facing the first clamping plate (41), and on one end surface of the second sealing ring (32) facing the second clamping plate (42).

7. A reverse osmosis filtration device according to claim 1, characterized in that: The filter assembly (4) further comprises: a countersunk bolt (13); a first threaded hole (412) is formed on the first clamping plate (41); a second threaded hole (422) is formed on the second clamping plate (42); the countersunk bolt (13) passes through the second threaded hole (422) and is threadably engaged with the first threaded hole (412).

8. A reverse osmosis filtration device according to claim 1, characterized in that: The base (1) is provided with a first clamping groove (101) and a second clamping groove (102), and the reverse osmosis filtration device further comprises: a first fixing component (14) and a second fixing component (15); The first fixing assembly (14) comprises: a first double-headed screw (141), two first nut seats (142) and two first fixing plates (143); one end of the first double-headed screw (141) is rotatably connected to the inner wall of the first clamping groove (101); the other end thereof passes through the base (1) and is fixedly connected to a third knob (144); the axis of the first double-headed screw (141) is perpendicular to the axis of the first liquid storage barrel (2); the two first nut seats (142) are respectively arranged on both sides of the first double-headed screw (141); and the two first fixing plates (143) are respectively fixed on the two first nut seats (142) to selectively clamp and fix the first liquid storage barrel (2); The second fixing assembly (15) comprises: a second double-headed screw (151), two second nut seats (152) and two second fixing plates (153); one end of the second double-headed screw (151) is rotatably connected to the inner wall of the second clamping groove (102); the other end thereof passes through the base (1) and is fixedly connected to a fourth knob (154); the axis of the second double-headed screw (151) is perpendicular to the axis of the second liquid storage barrel (3); the two second nut seats (152) are respectively arranged on both sides of the second double-headed screw (151); and the two second fixing plates (153) are respectively fixed on the two second nut seats (152) to selectively clamp and fix the second liquid storage barrel (3).

9. A reverse osmosis filtration device according to claim 8, characterized in that: In the axial direction of the first liquid storage barrel (2), the length of the first nut seat (142) is the same as the length of the first clamping groove (101), and the length of the second nut seat (152) is the same as the length of the second clamping groove (102).

10. A reverse osmosis filtration device according to claim 1, characterized in that: The reverse osmosis filtration device further comprises: a pressurizing component (16) for pressurizing the solution in the second liquid storage barrel (3); the pressurizing component (16) comprises: a support seat (161), a cylinder (162) and a pressurizing plate (163); the support seat (161) is arranged on a side of the base (1) away from the first liquid storage barrel (2); the cylinder (162) is arranged on the support seat (161), and the telescopic end of the cylinder (162) is fixedly connected to the pressurizing plate (163) to drive the pressurizing plate (163) to move inside the second liquid storage barrel (3).

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