A water purifier tank assembly

Abstract

This invention relates to the field of water purifier technology, specifically to a water purifier tank assembly, including a main frame and a cylindrical water purifier tank with an open top, mounted on the main frame for storing purified water. The cylindrical water purifier tank contains a piston ring mechanism; the area above the piston ring mechanism is a balancing chamber, and the area below is the purified water chamber. The piston ring mechanism includes a piston ring body, with a locking component on its periphery and a jetting component at its bottom. This invention changes the traditional method of balancing internal and external air pressure in cylindrical water purifier tanks by making the top of the tank open and incorporating a piston ring mechanism. This piston ring mechanism can adaptively move according to changes in the amount of purified water in the chamber, ensuring pressure balance while preventing contact between the purified water and air, thus eliminating secondary contamination of the purified water.

Description

Technical Field

[0001] This invention relates to the field of water purifier technology, specifically to a water purifier tank assembly for a water purifier. Background Technology

[0002] A water purifier, also called a water purification machine or water quality purifier, is a water treatment device that deeply filters and purifies water according to usage requirements. Its core technology is the RO reverse osmosis membrane in the filter cartridge. To ensure continuous water supply, a purified water tank is usually installed in the water purifier. The purified water tank is connected in series with the filter cartridge system and is used to pre-store the filtered water. To maintain internal and external air pressure balance, the purified water tank is usually equipped with an air vent or vent valve to connect to the outside. During the water discharge process, dust, microorganisms, and other contaminants carried in the air can easily enter the purified water tank, causing secondary pollution.

[0003] For example, patent CN214400071U discloses a water tank and a water purifier. The water tank has a water passage and a ventilation passage. An air filter is installed on the ventilation passage. The air filter includes a filter layer comprising a copper antibacterial layer, an outer ventilation support layer located outside the copper antibacterial layer, and an inner ventilation support layer located inside the copper antibacterial layer. It filters and sterilizes air through the air filter to reduce the impact of air on the purified water.

[0004] In the prior art of the aforementioned patent, in order to achieve air pressure balance inside and outside the water purifier tank, air still needs to enter the water purifier tank. Although the air is filtered and sterilized by the air filter, it is still not possible to completely eliminate impurities such as dust and microorganisms in the air. After the air enters the water purifier tank, it will still cause a certain degree of pollution to the purified water. Therefore, there is an urgent need for a water purifier tank component for water purifiers to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a water purification tank assembly for a water purifier to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water purification tank assembly for a water purifier, comprising a main frame and a cylindrical water purification tank with an open top, which is disposed on the main frame for storing purified water;

[0007] The cylindrical water purification tank is equipped with a piston ring mechanism. The area above the piston ring mechanism is a balance chamber, and the area below it is a water purification chamber. The piston ring mechanism includes a piston ring body, and the piston ring body is equipped with a locking component on its periphery and a jet component at its bottom.

[0008] The piston ring mechanism has two working states: water storage state and cleaning state. In the water storage state, clean water flows directly into the clean water tank, and the piston ring mechanism moves adaptively with the increase or decrease of water volume. In the cleaning state, clean water flows into the clean water tank through the piston ring mechanism. The locking component extends along the circumference of the piston ring body under the action of water pressure to lock the position of the piston ring body. The jet component extends under the action of water pressure to perform jet cleaning on the bottom of the inner side of the cylindrical clean water tank and the bottom of the piston ring body.

[0009] Preferably, the front end of the main frame is detachably equipped with a PPC composite filter element and an RO membrane filter element for filtering raw water, and the PPC composite filter element, the RO membrane filter element and the cylindrical water purification tank are connected in series.

[0010] Preferably, the cylindrical water tank is provided with an inlet and an outlet, and the inlet of the cylindrical water tank is provided with an inlet solenoid three-way valve, and the outlet is provided with a drain solenoid three-way valve.

[0011] Preferably, a support inclined seat is provided on the lower inner side of the cylindrical water tank to support the piston ring mechanism. An inclined surface is provided at the contact position between the circumference of the piston ring body and the bottom. The slope ratio of the support inclined seat is greater than the slope ratio of the inclined surface on the piston ring body.

[0012] Preferably, the lower edge of the receiving inclined seat is provided with a locking groove, which is used to cooperate with the locking assembly to lock the position of the piston ring body.

[0013] Preferably, the locking assembly is located on the inclined surface of the piston ring body. The locking assembly includes a cylinder liner and a locking rod that is movably fitted inside the cylinder liner. The front end of the locking rod can be moved to the outside of the piston ring body by the water pressure inside the piston ring body and inserted into the locking groove.

[0014] Preferably, the locking assembly further includes a return spring movably fitted outside the locking rod, used to drive the locking rod to reset after the water pressure inside the piston ring body disappears.

[0015] Preferably, the jet assembly includes a second cylinder liner and a jet nozzle that is movably fitted inside the second cylinder liner. The front end of the jet nozzle can move to the outside of the piston ring body under the action of water pressure inside the piston ring body. An upward or downward inclined jet hole is opened on the lower side of the jet nozzle.

[0016] Preferably, a drive turbine is fixedly connected to the top of the jet nozzle, and the periphery of the drive turbine is tangent to the inner wall of the mounting cylinder liner.

[0017] Preferably, the jet assembly further includes a second reset spring movably fitted outside the jet nozzle, used to drive the jet nozzle to reset after the water pressure inside the piston ring body disappears. The stiffness coefficient of the second reset spring is greater than that of the first reset spring.

[0018] In the above technical solution, the beneficial effects of the present invention are as follows: It changes the previous form of pressure balance inside and outside the cylindrical water purification tank by setting the top of the cylindrical water purification tank as an open structure and setting a piston ring mechanism inside the cylindrical water purification tank. The piston ring mechanism can adaptively move according to the increase or decrease of the amount of purified water in the purification tank, ensuring pressure balance inside and outside the purification tank while preventing purified water from contacting air, thereby eliminating secondary pollution of the purified water. In addition, water is supplied to the purification tank along the top of the piston ring mechanism. The locking component extends under water pressure to lock the position of the piston ring body, and the jet component extends under water pressure, allowing purified water to be sprayed out in a jet-like manner through the jet component, effectively cleaning the biofilm on the inner bottom of the cylindrical water purification tank and the bottom of the piston ring body.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall assembled structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention;

[0024] Figure 3 This is a side view of the main frame of the present invention.

[0025] Figure 4 This is a schematic diagram of the installation position of the cylindrical water purification tank of the present invention;

[0026] Figure 5 This is a schematic diagram of the card holder structure of the present invention;

[0027] Figure 6 This is a structural schematic diagram of the cross-section of the cylindrical water purification tank of the present invention;

[0028] Figure 7 For the present invention Figure 6 An enlarged structural diagram at point A;

[0029] Figure 8 This is a schematic diagram of the bottom structure of the piston ring body of the present invention;

[0030] Figure 9 This is a schematic diagram of the cross-section of the locking component of the present invention;

[0031] Figure 10 This is a schematic diagram of the cross-sectional structure of the jet assembly of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] In the diagram: 1. Main frame; 2. PPC composite filter element; 3. RO membrane filter element; 4. Computer board; 5. Mounting bracket; 6. Snap-fit ​​connector; 7. Cylindrical water purification tank;

[0034] 8. Piston ring mechanism; 81. Piston ring body; 82. Locking assembly; 821. Cylinder liner mounting; 822. Locking rod; 823. Return spring; 824. Limiting ring; 83. Jet assembly; 831. Cylinder liner mounting; 832. Jet nozzle; 833. Jet orifice; 834. Return spring; 835. Drive turbine; 836. Limiting ring; 84. Leakage prevention valve;

[0035] 9. Receiver seat; 10. Locking groove; 11. Inlet solenoid three-way valve; 12. Drain solenoid three-way valve; 13. Pipeline connection chamber; 14. Front cover; 15. Rear cover; 16. Top cover plate; 17. UV germicidal lamp; 18. Proximity switch; 19. Partition joint. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0037] Please see Figure 1-10 The present invention provides a technical solution: a water purification tank assembly for a water purifier, including a main frame 1 and a cylindrical water purification tank 7 with an open top, which is disposed on the main frame 1 for storing purified water.

[0038] A piston ring mechanism 8 is provided in the cylindrical water purification tank 7. The upper area of ​​the piston ring mechanism 8 is the balance chamber, and the lower area is the water purification chamber. The piston ring mechanism 8 includes a piston ring body 81, and a locking component 82 is provided on the periphery of the piston ring body 81 and a jet component 83 is provided at the bottom.

[0039] The piston ring mechanism 8 has two working states: water storage state and cleaning state. In the water storage state, clean water flows directly into the clean water tank, and the piston ring mechanism 8 moves adaptively with the increase or decrease of water volume. In the cleaning state, clean water flows into the clean water tank through the piston ring mechanism 8, the locking component 82 extends along the periphery of the piston ring body 81 under the action of water pressure, and locks the position of the piston ring body 81. The jet component 83 extends under the action of water pressure and performs jet cleaning on the bottom of the inner side of the cylindrical clean water tank 7 and the bottom of the piston ring body 81.

[0040] Specifically, the top of the cylindrical water purification tank 7 is designed to be open, and a piston ring mechanism 8 is movably mounted inside the cylindrical water purification tank 7. In the water storage state, purified water enters the purification chamber through the inlet of the cylindrical water purification tank 7. As the amount of purified water in the purification chamber increases, the piston ring mechanism 8 adaptively moves upward. When the end is open, the purified water in the purification chamber is discharged through the outlet. As the amount of purified water in the purification chamber decreases, the piston ring mechanism 8 adaptively moves downward, ensuring pressure balance inside and outside the purification chamber while preventing the purified water in the purification chamber from contacting air, thus eliminating secondary pollution of the purified water. In the cleaning state, the piston ring mechanism 8... Located at the bottom, purified water enters the piston ring body 81 along the top of the piston ring mechanism 8. The extension pressure of the locking component 82 is less than the extension pressure of the jet component 83. Under the action of the water pressure inside the piston ring body 81, the locking component 82 extends in advance to lock the position of the piston ring body 81, limiting the distance between the jet component 83 and the bottom of the inner side of the cylindrical water tank 7. After the locking component 82 extends into place, the jet component 83 extends under the action of water pressure, and the purified water in the piston ring body 81 is sprayed out along the jet component 83 in a jet shape to clean the bottom of the inner side of the cylindrical water tank 7 and the bottom of the piston ring body 81.

[0041] Compared with the prior art, the water purification tank assembly for a water purifier proposed in this embodiment of the invention changes the previous form of pressure balance inside and outside the cylindrical water purification tank 7. The top of the cylindrical water purification tank 7 is set as an open structure, and a piston ring mechanism 8 is set in the cylindrical water purification tank 7. The piston ring mechanism 8 can adaptively move according to the increase or decrease of the amount of purified water in the purification tank, ensuring the pressure balance inside and outside the purification tank while avoiding contact between purified water and air, thereby eliminating secondary pollution of purified water. In addition, water is supplied to the purification tank along the top of the piston ring mechanism 8. The locking component 82 extends under the action of water pressure to lock the position of the piston ring body 81. The jet component 83 extends under the action of water pressure, and purified water can be sprayed out in a jet shape through the jet component 83 to achieve effective cleaning of the biofilm on the bottom inside the cylindrical water purification tank 7 and the bottom of the piston ring body 81.

[0042] This invention discloses a water purification tank assembly for a water purifier, further comprising a PPC composite filter element 2 and an RO membrane filter element 3, which are detachably installed at the front end of the main frame 1; a mounting bracket 5, which is fixedly installed at the rear end of the main frame 1, and the interior of the mounting bracket 5 forms a pipeline connection chamber 13, wherein the components disposed in the pipeline connection chamber 13 include, but are not limited to, an inlet valve, a booster pump, a check valve, and a high-pressure switch; a partition joint 19, which is disposed at the rear end of the main frame 1, and the partition joint 19 is provided with a quick-connect fitting for the inlet water pipe, a quick-connect fitting for the purified water pipe, a quick-connect fitting for the concentrated water pipe, and an electrical connection plug; a computer board 4, which is fixedly installed on the top of the mounting bracket 5 near the PPC composite filter element 2; the components in the pipeline connection chamber 13 are connected to the PPC composite filter element 2, the RO membrane filter element 3, the cylindrical water purification tank 7, and the partition... The connection method between the board connector 19 and the computer board 4 is existing technology and will not be described in detail here; the top of the main frame 1 is snapped with the top cover plate 16, and the top cover plate 16 is provided with a touch panel electrically connected to the computer board 4; the front cover 14 is snapped with the front of the main frame 1 and the rear cover 15 is snapped with the rear, which is used to protect the internal components of the water purifier; the top of the mounting bracket 5 is fixedly installed with a snap-fit ​​seat 6, which is used to snap the cylindrical water purification tank 7; the bottom of the cylindrical water purification tank 7 is embedded with a UV sterilization lamp 17, which is controlled by the computer board 4 to disinfect and sterilize the purified water in the water purification tank; the bottom and top of the cylindrical water purification tank 7 are both fixedly installed with proximity switches 18, which are controlled by the computer board 4 to detect the position of the piston ring mechanism 8, so as to detect the amount of purified water inside the cylindrical water purification tank 7.

[0043] In one embodiment of the present invention, a PPC composite filter element 2 and an RO membrane filter element 3 are detachably installed at the front end of the main frame 1 for filtering raw water. The PPC composite filter element 2, the RO membrane filter element 3 and the cylindrical water purification tank 7 are connected in series. Specifically, after filtering the raw water, the PPC composite filter element 2 and the RO membrane filter element 3 can introduce the purified water into the cylindrical water purification tank 7 for storage to ensure the continuity of water use when the water purifier is used in the future.

[0044] In one embodiment of the present invention, a cylindrical water purification tank 7 is provided with an inlet and an outlet. An inlet solenoid three-way valve 11 is installed at the inlet of the cylindrical water purification tank 7, and a drain solenoid three-way valve 12 is installed at the outlet. Specifically, the inlet of the inlet solenoid three-way valve 11 is connected to the outlet of the RO membrane filter element 3, one set of outlets of the inlet solenoid three-way valve 11 is connected to the inlet of the cylindrical water purification tank 7, and the other set of outlets is connected to the piston ring body 81. The inlet solenoid three-way valve 11 is controlled by a computer board 4 to allow purified water to enter the purified water system. The working state of the piston ring mechanism 8 can be adjusted by adjusting the internal mechanism of the chamber. The inlet of the drain solenoid three-way valve 12 is connected to the outlet of the cylindrical water tank 7. One set of outlets of the drain solenoid three-way valve 12 is connected to the clean water outlet pipe, and the other set of outlets is connected to the concentrated water outlet pipe. When the piston ring mechanism 8 is in the water storage state, the clean water in the water tank can be discharged through the drain solenoid three-way valve 12 through the clean water outlet pipe. When the piston ring mechanism 8 is in the cleaning state, the cleaning water in the water tank can be discharged through the drain solenoid three-way valve 12 through the concentrated water outlet pipe.

[0045] In the prior art, the filtered water still contains a small amount of microorganisms. These microorganisms adhere to the inner wall of the cylindrical water purification tank 7. With prolonged use, the amount of adhering microorganisms increases and they multiply, easily forming a biofilm inside the cylindrical water purification tank 7. This can affect the water quality of the purified water. Furthermore, the biofilm covers the UV sterilization lamp 17, affecting the sterilization effect and creating a vicious cycle. Therefore, the following embodiments are proposed to solve the above problems.

[0046] In one embodiment of the present invention, a receiving inclined seat 9 is provided on the lower inner side of the cylindrical water purification tank 7 to support the piston ring mechanism 8. An inclined surface is provided at the contact position between the periphery and the bottom of the piston ring body 81. The slope ratio of the receiving inclined seat 9 is greater than the slope ratio of the inclined surface on the piston ring body 81. Specifically, by supporting the piston ring mechanism 8 through the receiving inclined seat 9, the maximum downward stroke of the piston ring mechanism 8 is limited, thereby forming a cleaning area for the jet assembly 83 to work between the bottom of the piston ring body 81 and the bottom of the inner side of the water purification tank. The inclination angle of the receiving inclined seat 9 and the inclined surface on the piston ring body 81 is limited, so that there is a gap between the receiving inclined seat 9 and the inclined surface on the piston ring body 81, so that the jet ejected by the jet assembly 83 can enter the gap, thereby cleaning the biofilm on the receiving inclined seat 9 and the piston ring body 81.

[0047] In one embodiment of the present invention, a locking groove 10 is provided on the lower edge of the receiving inclined seat 9, which is used to cooperate with the locking component 82 to lock the position of the piston ring body 81. Specifically, it should be noted that the piston ring mechanism 8 slides up and down inside the cylindrical water purification tank 7, and can simultaneously clean the side wall of the cylindrical water purification tank 7. Therefore, the biofilm will only grow on the bottom of the piston ring body 81, the inner bottom of the cylindrical water purification tank 7, and the side wall of the cleaning area formed by the piston ring body 81 and the inner bottom of the cylindrical water purification tank 7. It should also be noted that in order to ensure the cleaning effect of the jet component 83 on the bottom of the water purification tank, the piston ring mechanism 8 needs to be pressed against the inner bottom of the cylindrical water purification tank 7 when cleaning. Therefore, when cleaning, the locking component 82 extends under the action of the water pressure inside the piston ring body 81 and is inserted into the locking groove 10, which can lock the position of the piston ring body 81 and limit the distance between the jet component 83 and the inner bottom of the cylindrical water purification tank 7.

[0048] In another embodiment of the present invention, the locking component 82 is located on the inclined surface of the piston ring body 81. The locking component 82 includes a cylinder liner 821 and a locking rod 822 movably fitted inside the cylinder liner 821. The locking rod 822 can move to the outside of the piston ring body 81 under the action of water pressure inside the piston ring body 81 and is inserted into the locking groove 10. Specifically, in the cleaning state, clean water enters the piston ring body 81. Under the action of water pressure, the locking rod 822 overcomes the elastic force of the return spring 823 and moves in the cylinder liner 821, and moves to the outside of the piston ring body 81 and is inserted into the locking groove 10, thereby locking the position of the piston ring body 81 and preventing the piston ring body 81 from being moved upward by the reaction force caused by the jet ejected by the jet assembly 83. In the cleaning state, the water pressure inside the piston ring body 81 is always present, and the locking rod 822 can always be inserted into the locking groove 10 under the action of water pressure to lock the position of the piston ring body 81.

[0049] In another embodiment of the present invention, the locking assembly 82 further includes a return spring 823 movably fitted outside the locking rod 822, which is used to drive the locking rod 822 to reset after the water pressure inside the piston ring body 81 disappears. Specifically, the mounting cylinder liner 821 is threadedly connected to the inside of the piston ring body 81, and the top end of the mounting cylinder liner 821 is threadedly connected to a limit stop ring 824, which is used to limit the position of the locking rod 822 when it resets. When the cleaning is completed, the piston ring body 81 stops receiving water, the water pressure inside the piston ring body 81 disappears, and the locking rod 822 can be reset and retracted into the mounting cylinder liner 821 by the elastic force of the return spring 823, thereby releasing the lock on the position of the piston ring body 81, so that the piston ring mechanism 8 can move up and down inside the cylindrical water tank 7 in the water storage state.

[0050] In another embodiment of the present invention, the jet assembly 83 includes a mounting cylinder liner 831 and a jet nozzle 832 movably fitted inside the mounting cylinder liner 831. The jet nozzle 832, under the pressure of water inside the piston ring body 81, can move its front end to the outside of the piston ring body 81. An upwardly or downwardly inclined jet hole 833 is provided on the lower part of the periphery of the jet nozzle 832. Specifically, the mounting cylinder liner 831 is threaded to the bottom of the inner side of the piston ring body 81, and the top end of the mounting cylinder liner 831 is threaded to a limit ring 836, used to limit the position of the jet nozzle 832 during reset. Under the pressure of water, the jet nozzle 832 overcomes the elastic force of the reset spring 834 and moves downward, extending along the bottom of the piston ring body 81, thus extending the jet hole 832. 3. The piston ring body 81 is exposed to the outside. The clean water inside the piston ring body 81 passes through the cylinder liner 831 and enters the jet nozzle 832. Finally, it is sprayed out in a jet shape along the jet hole 833. The jet sprayed from the upwardly inclined jet hole 833 can clean the bottom of the piston ring body 81, the position of the bottom bearing seat 9, the locking groove 10, and the periphery of the cleaning area. The jet sprayed from the downwardly inclined jet hole 833 can clean the bottom of the inner side of the cylindrical water tank 7. A vertical jet hole 833 is opened in the middle of the bottom end of the jet nozzle 832. The jet sprayed from it can also clean the bottom of the inner side of the cylindrical water tank 7. It should be noted that in the prior art, the front end of the RO membrane filter element 3 is connected to a booster pump, and the water pressure inside the piston ring body 81 is generated by the booster pump.

[0051] In another embodiment of the present invention, a drive turbine 835 is fixedly connected to the top of the jet nozzle 832, and the periphery of the drive turbine 835 is tangent to the inner wall of the mounting cylinder liner 831. It should be noted that the jet angle sprayed along the jet hole 833 is fixed, which cannot achieve comprehensive cleaning of the bottom of the piston ring body 81, the bottom of the inner side of the cylindrical water tank 7, the receiving inclined seat 9, the locking groove 10, and the periphery of the cleaning area. By setting the drive turbine 835, when clean water enters the jet nozzle 832 along the mounting cylinder liner 831, the water flow can drive the drive turbine 835 to rotate the jet nozzle 832, thereby increasing the coverage area of ​​the jet sprayed from the jet hole 833 and improving the cleaning effect on each position.

[0052] In another embodiment of the present invention, the jet assembly 83 further includes a second return spring 834 movably fitted outside the jet nozzle 832, used to drive the jet nozzle 832 to reset after the water pressure inside the piston ring body 81 disappears. The stiffness coefficient of the second return spring 834 is greater than that of the first return spring 823. Specifically, when the pressure inside the piston ring body 81 disappears, the second return spring 834 can drive the jet nozzle 832 to reset. The stiffness coefficients of the second return spring 834 and the first return spring 823 are limited so that the elastic force on the locking rod 822 is less than the elastic force on the jet nozzle 832, thereby making the same... Under pressure, the locking rod 822 first extends to the outside of the piston ring body 81 to prevent the jet nozzle 832 from extending out before the jet is ejected, which would cause the position of the piston ring body 81 to change and prevent the locking rod 822 from corresponding to the locking groove 10. The bottom of the piston ring body 81 is glued with a leak-proof valve 84 that cooperates with the jet nozzle 832. The leak-proof valve 84 has a cross-shaped slit. When the jet nozzle 832 retracts into the cylinder liner 831, the leak-proof valve 84 can close the hole at the bottom of the piston ring body 81 that cooperates with the jet nozzle 832, preventing the clean water in the clean water tank from mixing with the water inside the piston ring body 81.

[0053] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water purification tank assembly for a water purification machine comprising a main body frame (1) characterized in that, Also include the top open cylinder water tank (7), it is arranged on the mainframe (1), is used for storing water; The piston ring mechanism (8) is arranged in the cylinder water tank (7), the upper area of the piston ring mechanism (8) is the balance bin, and the lower area is the water bin;The piston ring mechanism (8) includes a piston ring body (81), and the periphery of the piston ring body (81) is provided with a locking assembly (82), and the bottom is provided with a jet assembly (83); The piston ring mechanism (8) has two working states: water storage state and cleaning state;When the water storage state, the water directly flows into the water bin, and the piston ring mechanism (8) moves adaptively with the increase or decrease of water volume;When the cleaning state, the water flows into the water bin through the piston ring mechanism (8), the locking assembly (82) is stretched along the periphery of the piston ring body (81) under the action of water pressure, the position of the piston ring body (81) is locked, and the jet assembly (83) is stretched under the action of water pressure, and the inside bottom of the cylinder water tank (7) and the bottom of the piston ring body (81) are jet cleaned; The lower side of the cylinder water tank (7) is provided with a receiving inclined seat (9) for supporting the piston ring mechanism (8), the contact position of the periphery and the bottom of the piston ring body (81) is provided with an inclined surface, and the slope ratio of the receiving inclined seat (9) is greater than that of the inclined surface on the piston ring body (81);The lower edge of the receiving inclined seat (9) is provided with a locking groove (10) for cooperating with the locking assembly (82) to lock the position of the piston ring body (81);The locking assembly (82) is located on the inclined surface of the piston ring body (81), and the locking assembly (82) includes a mounting cylinder sleeve (821) and a locking plug (822) movably sleeved in the mounting cylinder sleeve (821), the front end of the locking plug (822) can be moved to the outside of the piston ring body (81) under the action of the water pressure in the piston ring body (81), and the locking plug (822) is inserted into the locking groove (10);The locking assembly (82) further includes a reset spring (823) movably sleeved on the outside of the locking plug (822), which is used to drive the locking plug (822) to reset after the water pressure in the piston ring body (81) disappears;The jet assembly (83) includes a mounting cylinder sleeve (831) and a jet nozzle (832) movably sleeved in the mounting cylinder sleeve (831), the front end of the jet nozzle (832) can be moved to the outside of the piston ring body (81) under the action of the water pressure in the piston ring body (81), and the jet nozzle (832) is provided with a jet hole (833) inclined upward or downward on the lower side of the periphery.

2. The water purifying tank assembly for a water purifier according to claim 1, wherein The front end of the mainframe (1) is detachably provided with a PPC composite filter element (2) and an RO membrane filter element (3), which is used for filtering raw water, and the PPC composite filter element (2), the RO membrane filter element (3) and the cylinder water tank (7) are connected in series.

3. The water purification tank assembly for a water purification machine of claim 1, wherein, The cylinder water tank (7) is provided with a water inlet and a water outlet, and the water inlet of the cylinder water tank (7) is provided with a water inlet electromagnetic three-way valve (11), and the water outlet is provided with a drainage electromagnetic three-way valve (12).

4. The water purification tank assembly for a water purification machine of claim 1, wherein, The top end of the jet nozzle (832) is fixedly connected with a driving turbine (835), and the peripheral side of the driving turbine (835) is tangent to the inner wall of the second installation cylinder sleeve (831).

5. The water purification tank assembly for a water purification machine of claim 1, wherein, The jet assembly (83) further comprises a reset spring two (834) movably sleeved outside the jet nozzle (832), used for driving the jet nozzle (832) to reset after the water pressure in the piston ring main body (81) disappears, and the rigidity coefficient of the reset spring two (834) is greater than that of the reset spring one (823).

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