Reverse osmosis type water purifier

Abstract

The invention discloses a reverse osmosis type water purifier which comprises a machine room, a water supply area is arranged on the front side of the machine room, a connecting base is arranged at the bottom of the back side of the machine room, a water tank is detachably arranged on the connecting base, the upper end of the water tank is open, a handle is hinged to the inner side of the water tank, and a cover body used for covering the upper end of the water tank is further hinged to the machine room; the preparation cavity is formed in the connecting seat; and a switch valve assembly. By arranging the preparation cavity and the water outlet controlled by the switch valve assembly, in the water supplementing process of the water tank, the switch valve assembly controls the water outlet to be closed, the water tank can be smoothly filled with water, then when the water tank is installed on the connecting base, the water outlet corresponds to the preparation cavity, and the switch valve assembly is opened so that the water tank can communicate with the preparation cavity through the water outlet; when the handle is folded into the water tank, part of water in the water tank can be immediately supplemented into the preparation cavity, so that the water level height in the water tank is reduced, the handle cannot make contact with the water when being folded into the water tank subsequently, and the pollution phenomenon is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and particularly to a reverse osmosis water purifier. Background Art

[0002] A water purifier, also known as a water purification machine or water quality purifier, is a water treatment device that deeply filters and purifies water quality according to the usage requirements of water. The technical core is the filter membrane in the filter element device, and the main technologies come from three types: ultrafiltration membrane, RO reverse osmosis membrane, and nanofiltration membrane. Existing water purifiers can basically meet the daily usage requirements, but there are still some deficiencies that need to be improved.

[0003] Patent document CN107162240A was published on September 15, 2017, and discloses a self-relieving water purifier. The self-relieving water purifier includes a housing, and the housing is successively installed with a raw water tank, a self-priming booster pump, a composite filter element, an RO reverse osmosis membrane, a pure water tank, a water pump, a heating device, and a water vapor separation box connected by pipelines; a flushing valve is also installed between the raw water tank and the RO reverse osmosis membrane through a pipeline; a main control board is also installed on the housing, and the main control board is connected to the water pump, the heating device, and the display interface through wires; a power cord is also installed on the housing; a raw water tank cover and a reed switch are also installed on the housing, a magnet is installed on the raw water tank cover, and the reed switch is connected to the main control board. The structure of the present invention is simple, and it automatically relieves pressure after the raw water tank cover is opened, ensuring the convenient disassembly of the filter element. At the same time, the raw water tank cover can also be opened when not in use, so that the pipeline maintains normal pressure and ensures the normal service life of each component.

[0004] When replacing the water source of the water tank, the water tank needs to be removed, filled with water, and then reinstalled. During this process, the handle on the water tank facilitates the movement of the water tank. However, as in the above-mentioned prior art, after the water tank is installed on the water purifier, the handle needs to be folded and stored inside the water tank, thus coming into contact with the water in the filled water tank and easily causing pollution. Therefore, there is an urgent need for a reverse osmosis water purifier to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a reverse osmosis water purifier to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A reverse osmosis water purifier includes a machine compartment. The front side of the machine compartment is set as a water supply area. A connecting seat is provided at the bottom of the back side of the machine compartment. A water tank is detachably provided on the connecting seat. The upper end of the water tank is open and a handle is hinged inside. A cover body for covering the upper end of the water tank is also hinged on the machine compartment. It further includes: a water outlet provided at the bottom of the water tank; a preparation chamber provided in the connecting seat; a switch valve assembly provided on the water tank for controlling the opening and closing of the water outlet. When the water tank is installed on the connecting seat, it controls the opening of the water outlet to connect the water tank with the preparation chamber, and when the water tank is removed from the connecting seat, it controls the closing of the water outlet.

[0007] Preferably, the switch valve assembly includes a valve cover elastically hinged inside the water outlet and a push rod provided in the preparation chamber. A through port corresponding to the water outlet is provided at the upper end of the preparation chamber. The upper end of the push rod passes through the through port and is provided with a gap with the inner wall of the through port.

[0008] Preferably, the push rod can be elastically lifted and lowered. A cushion block is provided on the inner bottom surface of the water tank. A delay component for restricting the rotation of the valve cover is provided on the cushion block. The delay component cancels the restriction on the rotation of the valve cover when the water tank is installed on the connecting seat until it is fully fitted.

[0009] Preferably, a sleeve is fixedly provided in the preparation chamber. The lower end of the push rod is movably connected inside the sleeve and is connected to a first elastic member provided in the sleeve.

[0010] Preferably, the delay component includes a movable groove opened on the side wall of the cushion block corresponding to the water outlet. A plug rod is movably connected in the movable groove. An insertion ring matching the plug rod is provided on the valve cover. A trigger rod is provided with a lifting and moving through the bottom of the water tank. The trigger rod is linked to the plug rod through a hinged connecting rod.

[0011] Preferably, a lever is movably connected to the cushion block. One end of the lever is hinged to the upper end of the trigger rod, and the other end is fixedly provided with a floating ball.

[0012] Preferably, a sliding groove is provided in the middle of the lever. A support is fixedly provided on the cushion block. A cylindrical pin that is movably connected to the sliding groove is provided at the upper end of the support.

[0013] Preferably, a connecting member that slidably penetrates the upper end of the cushion block is fixedly provided on the plug rod. The upper end of the connecting member is hinged to one end of the connecting rod.

[0014] Preferably, a filter cartridge is detachably connected to the upper end of the water outlet. A limiting block for limiting the filter cartridge is movably provided on the cushion block. The limiting block is linked to the connecting member. A concave ring matching the limiting block is provided on the outer wall of the lower end of the filter cartridge.

[0015] Preferably, a storage groove matching the limiting block is arranged on the cushion block, a second elastic member connecting the limiting block is arranged in the storage groove, and a through groove for the connecting member to pass through is arranged on the limiting block.

[0016] In the above technical solution, the beneficial effect of the present invention is: By providing a preparation chamber and a water outlet controlled by a switching valve assembly, during the water replenishment process of the water tank, the switching valve assembly controls the water outlet to be closed, and the water tank can be filled with water smoothly. After that, when the water tank is installed on the connecting seat, the water outlet corresponds to the preparation chamber, and the switching valve assembly is opened so that the water tank and the preparation chamber are communicated through the water outlet, and a part of the water in the water tank can be immediately replenished into the preparation chamber, thereby reducing the water level in the water tank to be lower than the height after the handle is folded. Then, when the handle is folded into the water tank later, it will not contact the water, avoiding the occurrence of pollution.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present disclosure.

[0018] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a complete disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the front cross-sectional structure provided by an embodiment of the present invention; Figure 3 Provided by an embodiment of the present invention Figure 2 The enlarged structural schematic diagram at A in Figure 4 It is a schematic diagram of the internal structure of the cushion block provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of the partial front cross-section after the water tank is removed provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the partial front cross-section after the water tank is removed and replenished with water provided by an embodiment of the present invention.

[0021] Description of the reference numerals: 1. Machine compartment; 2. Connecting seat; 3. Water tank; 4. Handle; 5. Cover body; 6. Water outlet; 7. Preparation cavity; 8. Valve cover; 9. Push rod; 10. Through port; 11. Pad; 12. Sleeve; 13. First elastic member; 14. Activity groove; 15. Insertion rod; 16. Insertion ring; 17. Trigger rod; 18. Link rod; 19. Lever; 20. Float ball; 21. Sliding groove; 22. Support; 23. Cylindrical pin; 24. Connecting member; 25. Filter cartridge; 26. Limit block; 27. Concave ring; 28. Storage groove; 29. Second elastic member; 30. Through groove; 31. Compartment; 32. Sealing soft sleeve. Detailed implementation manners

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0023] Please refer to Figures 1-6 , a reverse osmosis water purifier provided by an embodiment of the present invention includes a machine compartment 1. The front side of the machine compartment 1 is set as a water supply area. A connecting seat 2 is provided at the bottom of the back side of the machine compartment 1. A water tank 3 is detachably provided on the connecting seat 2. The upper end of the water tank 3 is open and a handle 4 is hinged inside. A cover body 5 for covering the upper end of the water tank 3 is also hinged on the machine compartment 1. It further includes: a water outlet 6 provided at the bottom of the water tank 3; a preparation cavity 7 provided in the connecting seat 2; a switch valve assembly provided on the water tank 3 for controlling the opening and closing of the water outlet 6. When the water tank 3 is installed on the connecting seat 2, it controls the opening of the water outlet 6 so that the water tank 3 communicates with the preparation cavity 7, and when the water tank 3 is removed from the connecting seat 2, it controls the closing of the water outlet 6.

[0024] Specifically, the machine compartment 1 is equipped with a PPC filter element and an RO filter element, which are specifically arranged on the exposed side of the machine compartment 1 after the water tank 3 is removed; the PPC filter element conducts primary filtration, effectively intercepting solid impurities such as rust, sediment, and suspended matter in the raw water, adsorbing disinfection by-products such as residual chlorine, and removing the color, odor, etc. in the water, with a replacement cycle of 3 - 6 months; the RO filter element effectively intercepts heavy metals such as Escherichia coli, lead, arsenic, cadmium, and chromium in the water, with a replacement cycle of 6 - 12 months; the upper end of the water supply area is set as a display panel, the lower side of the display panel is set as a water outlet, and a water receiving tray is arranged at the position directly opposite to the lower side of the water outlet. The connecting seat 2 is provided with a convex part, and the bottom of the water tank 3 is correspondingly provided with a concave part. The settings of the convex part and the concave part facilitate the positioning of the water tank 3 on the connecting seat 2; the handle 4 can be erected by rotation to extend out of the upper end of the water tank 3 for convenient taking, or can be folded to the horizontal position to be completely stored in the water tank 3. The folding of the handle 4 facilitates the complete covering of the water tank 3 by the cover body 5; preferably, the cover body 5 is elastically hinged to the machine compartment 1, the cover body 5 is provided with a buckle, and the water tank 3 is provided with a convex part matching the buckle. When the water tank 3 is installed, the side where the convex part is set faces outward, and the cover body 5 is snap-connected under the convex part through the buckle to keep the water tank 3 blocked. When the buckle and the convex part are disengaged, the cover body 5 automatically opens to a suitable position under the elastic force, facilitating the removal of the water tank 3; the water outlet 6 enables the water in the water tank 3 to be discharged outward through the bottom of the water tank 3; the capacity of the reserve cavity 7 is such that when the water tank 3 is filled to the brim, after a part of the water is filled into the reserve cavity 7, the water level height in the water tank 3 drops to a height lower than the height where the handle 4 is located after folding. In the actual use of this technical solution, during the water replenishment process of the water tank 3, the switching valve assembly controls the water outlet 6 to close, and the water tank 3 can be filled with water smoothly. After that, when the water tank 3 is installed on the connecting seat 2, the water outlet 6 corresponds to the reserve cavity 7, and the switching valve assembly is opened to enable the water tank 3 and the reserve cavity 7 to communicate with each other through the water outlet 6. A part of the water in the water tank 3 can be immediately filled into the reserve cavity 7, thereby reducing the water level height in the water tank 3 to a height lower than the height where the handle 4 is located after folding. Then, when the handle 4 is folded into the water tank 3 later, it will not come into contact with the water, avoiding the occurrence of pollution.

[0025] Compared with the prior art, an anti - osmosis type water purifier proposed in an embodiment of the present invention, by setting the reserve cavity 7 and the water outlet 6 controlled by the switching valve assembly, during the water replenishment process of the water tank 3, the switching valve assembly controls the water outlet 6 to close, and the water tank 3 can be filled with water smoothly. After that, when the water tank 3 is installed on the connecting seat 2, the water outlet 6 corresponds to the reserve cavity 7, and the switching valve assembly is opened to enable the water tank 3 and the reserve cavity 7 to communicate with each other through the water outlet 6. A part of the water in the water tank 3 can be immediately filled into the reserve cavity 7, thereby reducing the water level height in the water tank 3 to a height lower than the height where the handle 4 is located after folding. Then, when the handle 4 is folded into the water tank 3 later, it will not come into contact with the water, avoiding the occurrence of pollution.

[0026] As a preferred technical solution of this embodiment, the on-off valve assembly includes a valve cover 8 elastically hinged inside the water outlet 6 and a push rod 9 disposed inside the reserve chamber 7. A through port 10 corresponding to the water outlet 6 is provided at the upper end of the reserve chamber 7. The upper end of the push rod 9 passes through the through port 10 and is provided with a gap with the inner wall of the through port 10. Specifically, a groove for hinging the valve cover 8 is provided on the inner wall of the water outlet 6. The valve cover 8 is frustum-shaped. The middle part of the water outlet 6 is funnel-shaped. A sealing ring is provided at the part where the valve cover 8 contacts the water outlet 6 after being closed. The elastic hinging function of the valve cover 8 ensures that it remains separated in the middle part of the water outlet 6 without being affected by external forces, and the sealing is ensured by the wedge-shaped extrusion between the outer shape and the inner wall of the water outlet 6. Further, after the water tank 3 is filled with water, the water pressure can maintain the closure of the valve cover 8. The outer diameter of the push rod 9 is smaller than the inner diameter of the through port 10. The push rod 9 extends out of the through port 10 by a certain height. When the water tank 3 is installed on the connecting seat 2, the length of the push rod 9 extending out of the through port 10 can satisfy the requirement of lifting the valve cover 8, thereby opening the water outlet 6.

[0027] In the above embodiment, the process of the push rod 9 lifting the valve cover 8 corresponds to the process of the water tank 3 being placed on the connecting seat 2. It may cause that when the water tank 3 is not in contact with the connecting seat 2, the push rod 9 has gradually pushed open the valve cover 8, resulting in water leakage at the bottom of the water tank 3. To solve this problem, the following embodiment is proposed.

[0028] In another embodiment proposed by the present invention, the push rod 9 can be elastically lifted and lowered. A cushion block 11 is provided on the inner bottom surface of the water tank 3. A delay component for restricting the rotation of the valve cover 8 is provided on the cushion block 11. The delay component cancels the restriction on the rotation of the valve cover 8 when the water tank 3 is installed on the connecting seat 2 until it is completely in contact. Specifically, when the delay component restricts the valve cover 8, the valve cover 8 remains in the closed state. During the installation process of the water tank 3, the push rod 9 cannot push open the valve cover 8 and is elastically moved downward passively to store elastic potential energy. When the water tank 3 is installed on the connecting seat 2 until it is completely in contact, the delay component cancels the restriction on the rotation of the valve cover 8. Thus, under the action of the release of the elastic potential energy, the push rod 9 pops up upward and smoothly pushes open the valve cover 8, opening the water outlet 6, and the water tank 3 is smoothly communicated with the reserve chamber 7, thereby avoiding the water leakage problem at the bottom during the installation process of the water tank 3.

[0029] As a preferred technical solution of this embodiment, a sleeve 12 is fixedly provided inside the reserve chamber 7. The lower end of the push rod 9 is movably connected inside the sleeve 12 and is connected to a first elastic member 13 provided inside the sleeve 12. Specifically, the lower end of the sleeve 12 is fixedly connected inside the reserve chamber 7. The outer diameter of the sleeve 12 is smaller than the inner diameter of the through port 10. The first elastic member 13 can preferably be a spring, which keeps pushing the push rod 9 upward, that is, the push rod 9 remains upwardly extended at the highest position without being affected by external forces.

[0030] As a preferred technical solution of this embodiment, the delay component includes a movable groove 14 opened in the cushion block 11 corresponding to the side wall of the water outlet 6, a plug rod 15 is movably connected in the movable groove 14, a plug ring 16 matching the plug rod 15 is arranged on the valve cover 8, a trigger rod 17 is arranged through the bottom of the water tank 3 for lifting and lowering, and the trigger rod 17 is linked to the plug rod 15 through a hinged connecting rod 18. Specifically, the guiding direction of the plug rod 15 by the movable groove 14 is radially arranged along one side of the water outlet 6; when the valve cover 8 remains in a closed state, the horizontal height and direction of the plug ring 16 driven by it correspond to the guiding height and direction of the movable groove 14 for the plug rod 15; the lower end of the trigger rod 17 can extend out of the water tank 3 At the bottom, at this time, a recessed portion is provided at the bottom of the water tank 3, which can prevent the trigger rod 17 from being lifted up by the outside when the water tank 3 is placed on a supporting plane such as a desktop, thereby maintaining the restriction of the plug rod 15 on the valve cover 8, and when the water tank 3 is placed on the connecting seat 2, the protrusion on the connecting seat 2 just corresponds to the recessed portion at the bottom of the water tank 3, and thus the trigger rod 17 can be lifted up, and the linkage plug rod 15 can be moved to cancel the restriction on the valve cover 8; when the lower end of the trigger rod 17 extends toward the bottom of the water tank 3 and stretches, the plug rod 15 is linked to move toward the water outlet 6 through the connecting rod 18, and when the trigger rod 17 is lifted up, the plug rod 15 is linked to move away from the water outlet 6 through the connecting rod 18.

[0031] As a preferred technical solution of this embodiment, a lever 19 is movably connected to the cushion block 11, one end of the lever 19 is hinged to the upper end of the trigger rod 17, and a float 20 is fixedly arranged on the other end. Specifically, when the water tank 3 is installed on the connecting seat 2, the trigger rod 17 is lifted up by the protrusion on the connecting seat 2 and triggered to rise; when the trigger rod 17 is lowered, due to the arrangement of the lever 19 and the float 20, after the water in the water tank 3 is used up, the float 20 is not subject to buoyancy, and when the water tank 3 is disassembled, the trigger rod 17 still remains in the above raised position, and the valve cover 8 is reset under its elastic rotation function to keep the water outlet closed due to its separation from the top rod 9. The valve cover 8 is connected to the water outlet 6 by the plug ring 16, so that the valve cover 8 drives the plug ring 16 to correspond horizontally with the plug rod 15. Then, when water is poured into the water tank 3, the float 20 begins to rise due to the buoyancy, and then presses the trigger rod 17 down through the lever 19. The trigger rod 17 then moves toward the water outlet 6 through the connecting rod 18 to link the plug rod 15, so that it is smoothly inserted into the plug ring 16, thereby limiting the rotation of the valve cover 8 again, and the descent of the trigger rod 17 causes its lower end to extend out of the bottom of the water tank 3 again, so that it can be triggered when the water tank 3 is subsequently installed on the connecting seat 2 again. In this way, the passive resetting of the rotation limit of the valve cover 8 is realized, which is automatically performed only when the water tank 3 is replenished with water, without manual operation.

[0032] As a further preferred technical solution of this embodiment, a sliding groove 21 is provided in the middle of the lever 19, a support 22 is fixedly provided on the cushion block 11, and a cylindrical pin 23 that is movably connected to the sliding groove 21 is provided at the upper end of the support 22. Specifically, the arrangement of the sliding groove 21 and the cylindrical pin 23 avoids the lifting interference between the swing of the lever 19 and the trigger rod 17, and meets the functional requirement that the lifting of one end of the lever 19 connected to the floating ball 20 is opposite to the lifting of one end connected to the trigger rod 17.

[0033] As a further preferred technical solution of this embodiment, a connecting member 24 that slidably penetrates the upper end of the cushion block 11 is fixedly provided on the insertion rod 15, and the upper end of the connecting member 24 is hinged to one end of the connecting rod 18. Specifically, the connecting member 24 moves horizontally with the insertion rod 15, and both ends of the connecting rod 18 are hinged to the trigger rod 17 and the connecting member 24 respectively. When the trigger rod 17 rises, it pulls one end of the connecting rod 18 to rise, and the other end of the connecting rod 18 moves horizontally closer to the trigger rod 17, and then drives the insertion rod 15 to move away from the water outlet 6 through the connecting member 24. When the trigger rod 17 descends, it drives one end of the connecting rod 18 to descend, and the other end of the connecting rod 18 moves horizontally away from the trigger rod 17, and then drives the insertion rod 15 to move closer to the water outlet 6 through the connecting member 24.

[0034] To ensure that large particle impurities are filtered out of the water in the water tank 3 before entering the interior of the water purifier, a filter cartridge 25 made of corrosion-resistant materials such as stainless steel is connected to the water outlet 6. The filter cartridge 25 needs to be frequently disassembled and cleaned. In the prior art, since the filter cartridge 25 is located deep in the water tank 3, it is inconvenient to disassemble and install.

[0035] In another embodiment proposed by the present invention, a filter cartridge 25 is detachably connected to the upper end of the water outlet 6. A limiting block 26 for limiting the filter cartridge 25 is movably arranged on the cushion block 11. The limiting block 26 is linked with the connecting piece 24. An annular recess 27 matching the limiting block 26 is arranged on the outer wall of the lower end of the filter cartridge 25. Specifically, the upper end of the water outlet 6 protrudes from the cushion block 11 by a certain height, and the lower end of the filter cartridge 25 can be sleeved on the upper end of the water outlet 6. A receiving groove 28 matching the limiting block 26 is arranged on the cushion block 11. A second elastic member 29 connecting the limiting block 26 is arranged in the receiving groove 28. A through groove 30 for the connecting piece 24 to pass through is arranged on the limiting block 26. The second elastic member 29 can also be preferably a spring, which keeps pushing the limiting block 26 to move towards the water outlet 6. When the filter cartridge 25 is completely sleeved on the water outlet 6 downward, the annular recess 27 facilitates the horizontal alignment of the limiting block 26. One end of the limiting block 26 close to the water outlet 6 is set as a shovel shape, and the upper side is an inclined surface. Through the arrangement of the through groove 30, the limiting block 26 is sleeved on the outer side of the connecting piece 24. During the movement range of the trigger rod 17 during the installation process of the upper water tank 3 and the water replenishment and reset process, the connecting piece 24 moves relatively in the through groove 30 at the same time, and the trigger rod 17 can further rise, that is, the connecting piece 24 is driven to move further away from the water outlet 6. During this process, the moving connecting piece 24 can push the inner wall of the through groove 30, so that the limiting block 26 moves away from the water outlet 6 against the elastic force of the second elastic member 29. In actual use, when the filter cartridge 25 is installed, force is applied downward to sleeve it on the upper end of the water outlet 6. Then the lower end of the filter cartridge 25 first presses the limiting block 26 to move into the receiving groove 28. At the same time, the limiting block 26 presses the second elastic member 29, and the second elastic member 29 deforms and stores elastic potential energy. After the limiting block 26 corresponds to the annular recess 27, the elastic potential energy of the second elastic member 29 is released, so that the limiting block 26 approaches the water outlet 6 again, that is, the end of the limiting block 26 is embedded in the annular recess 27 to limit the filter cartridge 25. When the filter cartridge 25 is disassembled, the water tank 3 has drained the water and is removed from the connecting seat 2. Then only need to further press down the float ball 20. The float ball 20 drives the trigger rod 17 to move further upward through the lever 19. The trigger rod 17 drives the connecting piece 24 to move further away from the water outlet 6 through the connecting rod 18. During this process, the moving connecting piece 24 can push the inner wall of the through groove 30, so that the limiting block 26 moves away from the water outlet 6 against the elastic force of the second elastic member 29, that is, the limiting block 26 leaves the annular recess 27 to cancel the limit on the filter cartridge 25, and the filter cartridge 25 can be easily disassembled and removed from the water outlet 6.

[0036] Furthermore, to prevent the above structure from being exposed to water, which may affect water quality or cause abnormal operation due to scale formation, a partition chamber 31 surrounding the spacer block 11 is provided on the inner bottom surface of the water tank 3. The trigger rod 17 is disposed within the partition chamber 31, and the space allows for the lifting movement of the trigger rod 17. An installation hole for inserting the filter cartridge 25 is formed at the upper end of the partition chamber 31, and the filter cartridge 25 is just inserted into the installation hole in a sealed manner. After the filter cartridge 25 is installed, mesh holes are provided only on the part that protrudes above the partition chamber 31. In addition, the lever 19 extends through one side of the partition chamber 31, and a sealing soft sleeve 32 is provided at the penetrating position. The sealing soft sleeve 32 ensures the sealing of the position where the lever 19 penetrates the partition chamber 31 and does not affect the movement of the lever 19. The provision of the partition chamber 31 isolates the above linkage structure from water, thus preventing further contamination of the raw water.

[0037] Only some exemplary embodiments of the present invention have been described above by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A reverse osmosis water purifier, comprising a machine chamber (1), wherein the front side of the machine chamber (1) is arranged as a water supply area, a connecting seat (2) is arranged at the bottom of the back side of the machine chamber (1), a water tank (3) is detachably arranged on the connecting seat (2), the upper end of the water tank (3) is open and a handle (4) is hingedly connected to the inner side, and a cover (5) for covering the upper end of the water tank (3) is also hingedly connected to the machine chamber (1), characterized in that: Also includes: A water outlet (6) is arranged at the bottom of the water tank (3); A preparation cavity (7) disposed in the connecting seat (2); A switch valve assembly is arranged on the water tank (3) and is used to control the switch of the water outlet (6). When the water tank (3) is installed on the connecting seat (2), the water outlet (6) is controlled to be opened so that the water tank (3) is connected to the preparation chamber (7). When the water tank (3) is removed from the connecting seat (2), the water outlet (6) is controlled to be closed.

2. The reverse osmosis water purifier according to claim 1, characterized in that: The switch valve assembly comprises a valve cover (8) elastically hinged in the water outlet (6) and a push rod (9) arranged in the preparatory cavity (7); a through opening (10) corresponding to the water outlet (6) is arranged at the upper end of the preparatory cavity (7); the upper end of the push rod (9) passes through the through opening (10) and is arranged with a gap between the push rod (9) and the inner wall of the through opening (10).

3. The reverse osmosis water purifier according to claim 2, characterized in that: The push rod (9) can be elastically raised and lowered, a cushion block (11) is provided on the inner bottom surface of the water tank (3), and a delay component for limiting the rotation of the valve cover (8) is provided on the cushion block (11). When the water tank (3) is installed on the connecting seat (2) until they are completely fitted, the delay component cancels the restriction on the rotation of the valve cover (8).

4. The reverse osmosis water purifier according to claim 3, characterized in that: A sleeve (12) is fixedly disposed in the preparatory cavity (7), and the lower end of the push rod (9) is movably connected in the sleeve (12) and connected to a first elastic member (13) disposed in the sleeve (12).

5. The reverse osmosis water purifier according to claim 3, characterized in that: The time delay assembly comprises a movable groove (14) formed in the cushion block (11) corresponding to the side wall of the water outlet (6), a plug rod (15) being movably connected in the movable groove (14), a plug ring (16) matching the plug rod (15) being provided on the valve cover (8), a trigger rod (17) being provided through the bottom of the water tank (3) for lifting and lowering movement, and the trigger rod (17) being linkedly connected to the plug rod (15) via a hinged connecting rod (18).

6. The reverse osmosis water purifier according to claim 5, characterized in that: The cushion block (11) is movably connected to a lever (19), one end of the lever (19) is hinged to the upper end of the trigger rod (17), and the other end is fixedly provided with a floating ball (20).

7. The reverse osmosis water purifier according to claim 6, characterized in that: A sliding groove (21) is arranged in the middle of the lever (19), a support (22) is fixedly arranged on the cushion block (11), and a cylindrical pin (23) movably connected to the sliding groove (21) is arranged at the upper end of the support (22).

8. The reverse osmosis water purifier according to claim 5, characterized in that: A connecting piece (24) is fixedly provided on the insertion rod (15) and slides through the upper end of the cushion block (11). The upper end of the connecting piece (24) is hinged to one end of the connecting rod (18).

9. The reverse osmosis water purifier according to claim 8, characterized in that: The upper end of the water outlet (6) is detachably connected to a filter cartridge (25), a limiting block (26) for limiting the position of the filter cartridge (25) is movably provided on the cushion block (11), the limiting block (26) is linked to the connecting piece (24), and a concave ring (27) matching the limiting block (26) is provided on the outer wall of the lower end of the filter cartridge (25).

10. The reverse osmosis water purifier according to claim 9, characterized in that: The cushion block (11) is provided with a receiving groove (28) matching the limiting block (26), a second elastic member (29) connected to the limiting block (26) is provided in the receiving groove (28), and the limiting block (26) is provided with a through groove (30) for the connecting member (24) to pass through.

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