Double membrane mutual washing type double water outlet reverse osmosis filter core

Abstract

The utility model discloses a kind of double-membrane mutual washing type double-water reverse osmosis filter element, it is related to reverse osmosis filter element field, including installation shell, the outside of installation shell is provided with installation cover, the both sides of installation shell and installation cover are provided with fixed component, the inside of installation shell is inserted with filter element body, the both sides of filter element body are all penetrated installation shell and installation cover. The utility model uses above-mentioned structure, by cooperation with fixed circular groove, insertion slot, with fixed edge firmly fixed together, and then the assembly of installation shell and installation cover is completed, the stable location of internal filter element body is realized, it uses the combination structure of rotating seat, fixed screw rod and fixed screw cylinder, simple and convenient to operate, staff only needs to adjust angle by screwing rotating seat, screwing fixed screw rod can complete installation and disassembly, without the aid of complex tool, greatly improve the efficiency of filter element body replacement, equipment maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of reverse osmosis filter cartridges, and specifically relates to a dual-membrane mutual flushing type dual-outlet reverse osmosis filter cartridge. Background Technology

[0002] The principle of reverse osmosis technology is based on the principle that, under pressure higher than the osmotic pressure of the solution, other substances cannot pass through a semi-permeable membrane, thus separating them from water. Reverse osmosis membranes have extremely small pore sizes, effectively removing dissolved salts, colloids, microorganisms, organic matter, and other substances from water. Reverse osmosis filter cartridges, manufactured using this technology, are widely used in water purifiers.

[0003] Chinese patent CN205019967U discloses a reverse osmosis filter element, comprising: a cylindrical shell, a long strip spring, a plug, an inlet end cap, an outlet end cap, a cylindrical central tube, a pure water guide net, a reverse osmosis membrane, and a concentrated water guide net. This utility model reverse osmosis filter element has a robust structure, is not easily loosened, has a large flow rate, a long service life, and can prevent the reverse osmosis membrane from breaking during backwashing.

[0004] As can be seen from the above structure, since the reverse osmosis filter element is installed in the membrane housing, the membrane housing cover needs to be removed first when replacing the filter element. The membrane housing cover is usually fixed by threads or screws, which is time-consuming to disassemble. Moreover, after the threads are tightened, they are often difficult to turn, resulting in laborious operation. After removing the membrane housing cover, the filter element is located deep in the membrane housing and may be adsorbed and stuck inside, making it difficult to remove. This affects the replacement efficiency of the reverse osmosis filter element and causes inconvenience. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a dual-membrane mutual flushing type dual-outlet reverse osmosis filter element to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A dual-membrane mutual flushing type dual-outlet reverse osmosis filter element includes a mounting shell, an mounting cover plate on the outer side of the mounting shell, fixing components on both sides of the mounting shell and the mounting cover plate, a filter element body inserted into the interior of the mounting shell, and the filter element body penetrating the mounting shell and the mounting cover plate on both sides. Each fixing component includes fixing edges on both sides of the mounting shell, a rotating seat rotatably connected inside the fixing edge, a fixing screw rotatably connected to the outer side of the rotating seat, and a fixing screw cylinder threaded onto the outer surface of the fixing screw. Extending edges are fixedly connected to both sides of the mounting cover plate, and a fixing groove is formed at the upper end of each extending edge, with an insertion groove formed inside the fixing groove.

[0008] As a preferred technical solution, sliding grooves are provided on both sides of the bottom of the mounting housing, and sliding blocks are slidably connected inside the sliding grooves, while push plates are fixedly connected to the outside of the sliding blocks.

[0009] As a preferred technical solution, the interior of the mounting housing is provided with a hidden groove, and two push-out springs are fixedly connected inside the hidden groove. The other end of the push-out springs is fixedly connected to the lower end of the push plate.

[0010] As a preferred technical solution, the upper end of the filter element body is fixedly connected to a tube head body, the outer surface of the tube head body is provided with a first external thread, the outer surface of the mounting cover plate is provided with a first threaded hole, and the first external thread is threadedly connected to the first threaded hole.

[0011] As a preferred technical solution, the lower end of the filter element body is fixedly connected to a tube tail body, the outer surface of the tube tail body is provided with a second external thread, the lower end of the mounting shell is provided with a second threaded hole, and the second external thread is threadedly connected to the second threaded hole.

[0012] As a preferred technical solution, the upper end of the mounting shell and the lower end of the mounting cover are interlocked. A sealing ring is fixedly connected to the upper end of the mounting shell, and a sealing groove is provided at the lower end of the mounting cover. The sealing groove and the sealing ring are interlocked.

[0013] As a preferred technical solution, the upper ends of the filter element body are provided with operating grooves on both sides, and anti-slip pads are fixedly connected inside the operating grooves.

[0014] In summary, the present invention has the following main advantages:

[0015] First, during installation, the mounting shell and mounting cover are fitted together. The rotating seat is turned so that the fixing screw is aligned with the fixing groove. Then, the fixing screw is inserted into the fixing groove, and the fixing cylinder is turned further. Since the fixing screw and fixing cylinder are threaded, as the fixing cylinder rotates, it will gradually move towards the extension side until it is tightly pressed against the surface of the extension side. At this time, the fixing screw and fixing cylinder work together, and through the cooperation of the fixing groove and the insertion groove, the extension side and the fixed side are firmly fixed together, thus completing the assembly of the mounting shell and mounting cover, and achieving stable positioning of the internal filter element body. It adopts a combination structure of rotating seat, fixing screw and fixing cylinder, which is simple and convenient to operate. The operator only needs to adjust the angle by turning the rotating seat and turn the fixing screw to complete the installation and disassembly, without the need for complicated tools, which greatly improves the efficiency of filter element body replacement and equipment maintenance.

[0016] Secondly, when the filter element needs to be replaced or removed, the staff first releases the constraint of the fixing component on the mounting cover and removes the cover. At this time, the pressure of the filter element on the push plate disappears, and the push spring, which is in a contracted state, will quickly release its elastic potential energy and push the push plate fixed to it upward. Under the pushing force of the push spring, the push plate drives the sliding block to slide upward along the sliding groove. At the same time, the upper end of the push plate will directly act on the bottom of the filter element body, lifting the filter element upward, so that the upper part of the filter element is exposed from the inside of the mounting shell. This makes it convenient for the staff to directly grab the filter element and complete the removal operation. With the help of the elastic pushing force of the push spring, the staff does not need to pry or pry the filter element. After the fixing is released, the filter element can automatically pop up part of its height under the action of the push plate, which greatly reduces the difficulty of removing the filter element. Especially for filter elements that are large or tightly installed, it effectively saves disassembly and assembly time and improves maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a side view structural diagram of the present invention;

[0020] Figure 4 This is a cross-sectional structural diagram of the mounting shell of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the mounting shell of this utility model.

[0022] Reference numerals: 1. Mounting housing; 2. Mounting cover; 3. Filter element body; 4. Fixing assembly; 41. Fixing edge; 42. Rotating seat; 43. Fixing screw; 44. Fixing screw barrel; 45. Extension edge; 46. Fixing circular groove; 47. Insertion groove; 5. Tube head body; 6. First external thread; 7. First threaded hole; 8. Tube tail body; 9. Second external thread; 10. Second threaded hole; 11. Operating groove; 12. Sliding groove; 13. Sliding block; 14. Push plate; 15. Concealed groove; 16. Push spring; 17. Sealing ring; 18. Sealing circular groove. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 5This embodiment of a dual-membrane mutual flushing type dual-outlet reverse osmosis filter element includes a mounting shell 1, a mounting cover plate 2 is provided on the outer side of the mounting shell 1, and fixing components 4 are provided on both sides of the mounting shell 1 and the mounting cover plate 2. A filter element body 3 is inserted into the inside of the mounting shell 1, and both sides of the filter element body 3 penetrate the mounting shell 1 and the mounting cover plate 2. The fixing components 4 include fixing edges 41 provided on both sides of the mounting shell 1, a rotating seat 42 is rotatably connected inside the fixing edge 41, a fixing screw 43 is rotatably connected to the outer side of the rotating seat 42, and a fixing screw cylinder 44 is threadedly connected to the outer surface of the fixing screw 43. An extension edge 45 is fixedly connected to both sides of the mounting cover plate 2, and a fixing circular groove 46 is opened at the upper end of the extension edge 45. An insertion groove 47 is opened inside the fixing circular groove 46.

[0025] refer to Figure 4 The bottom of the mounting housing 1 has sliding grooves 12 on both sides. Sliding blocks 13 are slidably connected inside the sliding grooves 12. Push plates 14 are fixedly connected to the outside of the sliding blocks 13. The mounting housing 1 has a hidden groove 15 inside. Two push springs 16 are fixedly connected inside the hidden groove 15. The other end of the push springs 16 is fixedly connected to the lower end of the push plate 14. When the filter element needs to be replaced or removed, the operator first releases the constraint of the fixing component 4 on the mounting cover plate 2 and removes the cover plate. At this time, the pressure of the filter element on the push plate 14 disappears. The push springs 16, which are in a contracted state, will quickly release their elastic potential energy and push the push plate 14 fixed to them upward. Under the pushing force of the push springs 16, the push plate 14 drives the sliding block 13 to slide upward along the sliding groove 12. At the same time, the upper end of the push plate 14 will directly act on the bottom of the filter element body 3, lifting the filter element upward and exposing the upper part of the filter element from inside the mounting housing 1, making it convenient for the operator to directly grab the filter element and complete the removal operation.

[0026] refer to Figure 1 , Figure 2 and Figure 5 The upper end of the filter element body 3 is fixedly connected to the tube head body 5. The outer surface of the tube head body 5 is provided with a first external thread 6. The outer surface of the mounting cover plate 2 is provided with a first threaded hole 7. The first external thread 6 is threadedly connected to the first threaded hole 7. The lower end of the filter element body 3 is fixedly connected to the tube tail body 8. The outer surface of the tube tail body 8 is provided with a second external thread 9. The lower end of the mounting shell 1 is provided with a second threaded hole 10. The second external thread 9 is threadedly connected to the second threaded hole 10. The tube head body 5 can be easily installed through the first external thread 6 and the first threaded hole 7, while the tube tail body 8 can be easily installed through the second external thread 9 and the second threaded hole.

[0027] refer to Figure 2 and Figure 3The upper end of the mounting housing 1 is inserted into the lower end of the mounting cover 2. A sealing ring 17 is fixedly connected to the upper end of the mounting housing 1, and a sealing groove 18 is provided at the lower end of the mounting cover 2. The sealing groove 18 and the sealing ring 17 are inserted into each other. Since the sealing ring 17 and the sealing groove 18 are dimensionally matched, they form a tight mating surface after being inserted, which can effectively fill the gap between the mounting housing 1 and the mounting cover 2. At the same time, when the mounting housing 1 and the mounting cover 2 are fixed by the fixing component 4, the clamping force generated by the fixing component 4 will further press the mating surface of the sealing ring 17 and the sealing groove 18 together, enhancing the sealing effect and preventing external dust, water vapor and other impurities from entering the internal filter element body 3 through the connection between the housing and the cover during equipment operation. It can also prevent the fluid to be filtered or filtered inside the mounting housing 1 from leaking out of the gap, ensuring the filtration efficiency of the equipment and the cleanliness of the operating environment.

[0028] refer to Figure 1 The filter body 3 has operation grooves 11 on both sides of its upper end, and anti-slip pads are fixedly connected inside the operation grooves 11. When it is necessary to install or remove the filter body 3, the user's hand can be directly inserted into the operation grooves 11 on both sides of the upper end of the filter body 3. The concave structure of the operation grooves 11 can accurately guide the hand posture, allowing the fingers to naturally fit the inner wall of the groove and form a stable grip. This avoids the situation where the hand has nowhere to exert force due to the smooth surface of the filter body or the lack of a gripping area, and greatly reduces the difficulty of gripping.

[0029] Operating principle and advantages: During use, the filter element body 3 is inserted into the mounting housing 1, with both ends passing through the mounting housing 1 and the mounting cover plate 2. The operator first attaches the mounting cover plate 2 to the outside of the mounting housing 1, ensuring that the extended edges 45 on both sides of the mounting cover plate 2 correspond to the fixed edges 41 on both sides of the mounting housing 1. Then, the rotating seat 42 is turned so that the fixing screw 43 is aligned with the fixing groove 46. The fixing screw 43 is then inserted into the fixing groove 46, and the fixing screw cylinder 44 is further turned. Since the fixing screw 43 and the fixing screw cylinder 44 are threaded, as the fixing screw cylinder 44 rotates, it gradually moves towards the extended edge 45 until it tightly presses against the surface of the extended edge 45. At this point, the fixing screw 43 and the fixing screw cylinder 44 work together, cooperating with the fixing groove 46 and the insertion groove 47, to firmly fix the extended edge 45 and the fixed edge 41 together, thus completing the assembly of the mounting housing 1 and the mounting cover plate 2, and realizing the assembly of the internal filter element body. The filter element body 3 is stable and limited. When it is necessary to disassemble the filter element body 3, the staff first releases the constraint of the fixing component 4 on the mounting cover plate 2 and removes the cover plate. At this time, the pressure of the filter element on the push plate 14 disappears, and the push spring 16, which is in a contracted state, will quickly release its elastic potential energy and push the push plate 14 fixed to it upward. Under the pushing force of the push spring 16, the push plate 14 drives the sliding block 13 to slide upward along the sliding groove 12. At the same time, the upper end of the push plate 14 will directly act on the bottom of the filter element body 3, lifting the filter element upward and exposing the upper part of the filter element from the inside of the mounting shell 1, making it convenient for the staff to directly grab the filter element and complete the removal operation. When disassembling, the user's hand can directly reach into the preset operation grooves 11 on both sides of the upper end of the filter element body 3. The concave structure of the operation groove 11 can accurately guide the hand posture, allowing the fingers to naturally fit the inner wall of the groove and form a stable grip, avoiding the situation where the hand has nowhere to exert force due to the smooth surface of the filter element or no force, greatly reducing the difficulty of grasping.

Claims

1. A double membrane cross flushing type double water outlet reverse osmosis filter element, characterized in that: The device includes a mounting housing (1), an mounting cover plate (2) on the outside of the mounting housing (1), and fixing components (4) on both sides of the mounting housing (1) and the mounting cover plate (2). A filter element body (3) is inserted into the inside of the mounting housing (1), and both sides of the filter element body (3) penetrate the mounting housing (1) and the mounting cover plate (2). The fixing components (4) include fixing edges (41) on both sides of the mounting housing (1), a rotating seat (42) is rotatably connected inside the fixing edge (41), a fixing screw (43) is rotatably connected to the outside of the rotating seat (42), a fixing screw (44) is threaded to the outer surface of the fixing screw (43), and an extension edge (45) is fixedly connected to both sides of the mounting cover plate (2). A fixing groove (46) is opened at the upper end of the extension edge (45), and an insertion groove (47) is opened inside the fixing groove (46).

2. The double-membrane mutual-flushing type double-water-outlet reverse osmosis filter element according to claim 1, characterized in that: The mounting housing (1) has sliding grooves (12) on both sides of its bottom. A sliding block (13) is slidably connected inside the sliding groove (12), and a push plate (14) is fixedly connected to the outside of the sliding block (13).

3. The double-membrane mutual-flushing type double-water-outlet reverse osmosis filter element according to claim 2, characterized in that: The mounting housing (1) has a hidden groove (15) inside, and two push springs (16) are fixedly connected inside the hidden groove (15). The other end of the push spring (16) is fixedly connected to the lower end of the push plate (14).

4. The dual-membrane mutual flushing type dual-outlet reverse osmosis filter element according to claim 1, characterized in that: The upper end of the filter body (3) is fixedly connected to the tube head body (5). The outer surface of the tube head body (5) is provided with a first external thread (6). The outer surface of the mounting cover plate (2) is provided with a first threaded hole (7). The first external thread (6) is threadedly connected to the first threaded hole (7).

5. The double membrane cross washing type double water outlet reverse osmosis filter element according to claim 1, characterized in that: The lower end of the filter element body (3) is fixedly connected to the tube tail body (8). The outer surface of the tube tail body (8) is provided with a second external thread (9). The lower end of the mounting shell (1) is provided with a second threaded hole (10). The second external thread (9) is threadedly connected to the second threaded hole (10).

6. The double membrane cross washing type double water outlet reverse osmosis filter element according to claim 1, characterized in that: The upper end of the mounting housing (1) is inserted into the lower end of the mounting cover plate (2). A sealing ring (17) is fixedly connected to the upper end of the mounting housing (1). A sealing groove (18) is opened at the lower end of the mounting cover plate (2). The sealing groove (18) and the sealing ring (17) are inserted into each other.

7. The double membrane cross washing type double water outlet reverse osmosis filter element according to claim 1, characterized in that: The filter element body (3) has operation grooves (11) on both sides of its upper end, and anti-slip pads are fixedly connected inside the operation grooves (11).

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