Water purification tank assembly for water purifier

Abstract

The invention relates to the technical field of water purifiers, in particular to a water purification tank assembly for a water purifier, which comprises a main body rack, and further comprises a cylindrical water purification tank with an open top, and the cylindrical water purification tank is arranged on the main body rack and is used for storing purified water; a piston ring mechanism is arranged in the cylindrical water purification tank, the area above the piston ring mechanism is a balance bin, and the area below the piston ring mechanism is a water storage bin; the piston ring mechanism comprises a piston ring body, a locking assembly is arranged on the peripheral side of the piston ring body, and a jet assembly is arranged at the bottom. The form that air pressure inside and outside a conventional cylindrical water purification tank is balanced is changed, the top of the cylindrical water purification tank is set to be of an open structure, and the piston ring mechanism is arranged in the cylindrical water purification tank and can adaptively move according to increase and decrease of the amount of purified water in the water purification bin, so that balance of air pressure inside and outside the water purification bin is guaranteed, and the service life of the water purification bin is prolonged. Clean water is prevented from being in contact with air, so that secondary pollution of the clean water is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to a water purification tank assembly for a water purifier. Background Art

[0002] A water purifier, also known as a water purifier or water purifier, is a water treatment device that deeply filters and purifies water according to specific usage requirements. Its core technology lies in the RO reverse osmosis membrane within the filter element. To ensure consistent water use, a clean water tank is typically installed within the purifier. This tank is connected in series with the filter element system and serves as a pre-storage area for filtered water. To maintain pressure balance, the clean water tank typically features an air vent or vent valve that connects to the outside world. During the draining process, dust and microorganisms carried in the air can easily enter the clean water tank, causing secondary contamination of the purified water.

[0003] For example, patent publication number CN214400071U discloses a water tank and water purifier. The water tank has a water passage and a ventilation passage. The ventilation passage is provided with an air filter. The air filter comprises a filter layer comprising a copper antibacterial layer, an outer breathable support layer positioned outside the copper antibacterial layer, and an inner breathable support layer positioned inside the copper antibacterial layer. The air filter filters and sterilizes air, thereby reducing its impact on the purified water.

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

[0005] The purpose of the present invention is to provide a water purification tank assembly for a water purifier to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, 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 arranged on the main frame and is used to store purified water;

[0007] The cylindrical clean water tank is provided with a piston ring mechanism, the upper area of ​​the piston ring mechanism is a balance chamber, and the lower area is a water storage chamber; the piston ring mechanism includes a piston ring body, and a locking assembly is provided on the circumference of the piston ring body and a jet assembly is provided on the 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, and the locking component is extended along the circumference of the piston ring body by the action of water pressure to lock the position of the piston ring body, and the jet component is extended by the action of water pressure to jet clean the inner bottom of the cylindrical clean water tank and the bottom of the piston ring body.

[0009] Preferably, a PPC composite filter element and an RO membrane filter element are detachably mounted on the front end of the main frame 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, a water inlet and a water outlet are provided on the cylindrical water purification tank, and a water inlet electromagnetic three-way valve is provided on the water inlet of the cylindrical water purification tank, and a water discharge electromagnetic three-way valve is provided on the water outlet.

[0011] Preferably, a receiving inclined seat is provided at the lower part of the inner side of the cylindrical clean water tank for supporting the piston ring mechanism, and an inclined surface is provided at the contact position between the peripheral side of the piston ring body and the bottom, and the slope ratio of the receiving inclined seat is greater than the slope ratio of the inclined surface on the piston ring body.

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

[0013] Preferably, the locking assembly is located at an inclined position on the piston ring body, and the locking assembly includes an installation cylinder sleeve and a locking rod movably sleeved inside the installation cylinder sleeve. The front end of the locking rod can be moved to the outside of the piston ring body under the action of the water pressure inside the piston ring body and inserted into the locking groove.

[0014] Preferably, the locking assembly further comprises a reset spring movably sleeved on the outside of the locking rod, for driving the locking rod to reset after the water pressure inside the piston ring body disappears.

[0015] Preferably, the jet assembly includes a second mounting cylinder liner and a jet nozzle movably mounted inside the second mounting cylinder liner. The front end of the jet nozzle can be moved to the outside of the piston ring body under the action of the water pressure inside the piston ring body. A jet hole inclined upward or downward is opened below the peripheral side of the jet nozzle.

[0016] Preferably, the top end of the jet nozzle is fixedly connected to a driving turbine, and the circumference of the driving turbine is tangent to the second inner wall of the mounting cylinder sleeve.

[0017] Preferably, the jet assembly further comprises a second reset spring movably mounted on the outside of the jet nozzle, for driving the jet nozzle to reset after the water pressure inside the piston ring body disappears, and the rigidity coefficient of the second reset spring is greater than the rigidity coefficient of the first reset spring.

[0018] In the above technical scheme, the beneficial effects of the present invention are: changing the previous form of internal and external air pressure balance of the cylindrical water clean tank, setting the top of the cylindrical water clean tank to an open structure, and setting a piston ring mechanism in the cylindrical water clean tank, the piston ring mechanism can be adaptively moved according to the increase or decrease of the clean water amount in the clean water tank, ensuring the internal and external air pressure balance in the clean water tank while avoiding contact between the clean water and the air, thereby eliminating secondary pollution of the clean water; in addition, water is supplied to the clean water tank along the top of the piston ring mechanism, the locking assembly is extended by the water pressure to lock the position of the piston ring body, the jet assembly is extended by the water pressure, and the clean water can be sprayed out in a jet-like manner through the jet assembly, thereby realizing effective cleaning of the biofilm on the inner bottom of the cylindrical water clean tank and the bottom of the piston ring body.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention after overall assembly;

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

[0024] Figure 3 This is a schematic structural diagram of the main frame of the present invention from a side view;

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

[0026] Figure 5 This is a structural diagram of the card connector of the present invention;

[0027] Figure 6 It 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 A schematic diagram of the structure enlarged at point A;

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

[0030] Figure 9 It is a schematic structural diagram of a cross section of the locking assembly of the present invention;

[0031] Figure 10 It is a structural schematic diagram of the cross section of the jet component of the present invention.

[0032] Description of reference numerals:

[0033] In the figure: 1. Main frame; 2. PPC composite filter element; 3. RO membrane filter element; 4. Computer board; 5. Mounting bracket; 6. Connector; 7. Cylindrical water purification tank;

[0034] 8. Piston ring mechanism; 81. Piston ring body; 82. Locking assembly; 821. Installing cylinder sleeve (1); 822. Locking rod; 823. Return spring (1); 824. Stop ring (1); 83. Fluidic assembly; 831. Installing cylinder sleeve (2); 832. Fluidic nozzle; 833. Fluidic hole; 834. Return spring (2); 835. Driving turbine; 836. Stop ring (2); 84. Anti-leakage valve;

[0035] 9. Attaching inclined seat; 10. Locking groove; 11. Water inlet electromagnetic three-way valve; 12. Drain electromagnetic three-way valve; 13. Pipe connection chamber; 14. Front cover; 15. Rear cover; 16. Upper cover; 17. UV germicidal lamp; 18. Proximity switch; 19. Partition connector. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0037] See also Figure 1-10 The embodiment of the present invention provides a technical solution: a water purification tank assembly for a water purifier, comprising a main frame 1, and a cylindrical water purification tank 7 with an open top, which is arranged on the main frame 1 and is used to store purified water;

[0038] A piston ring mechanism 8 is provided in the cylindrical clean water tank 7. The area above the piston ring mechanism 8 is a balance chamber, and the area below is a water storage chamber. The piston ring mechanism 8 includes a piston ring body 81, and a locking assembly 82 is provided on the circumference of the piston ring body 81, and a jet assembly 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, and the locking component 82 is extended along the side of the piston ring body 81 by the water pressure to lock the position of the piston ring body 81, and the jet component 83 is extended by the water pressure to perform jet cleaning on the inner bottom 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 set to an open structure, and a piston ring mechanism 8 is movably mounted inside the cylindrical water purification tank 7; in the water storage state, the purified clean water enters the clean water tank along the water inlet of the cylindrical water purification tank 7, and as the amount of clean water in the clean water tank increases, the piston ring mechanism 8 moves up adaptively, and when the use end is open, the clean water in the clean water tank is discharged along the water outlet, and as the amount of clean water in the clean water tank decreases, the piston ring mechanism 8 moves down adaptively, ensuring the balance of air pressure inside and outside the clean water tank while avoiding contact between the clean water in the clean water tank and the air, thereby preventing secondary pollution of the clean water; in the cleaning state, the piston ring mechanism 8 Located at the bottom of the formation, the clean water enters the piston ring body 81 along the top of the piston ring mechanism 8, and 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 is extended in advance to lock the position of the piston ring body 81, and the distance between the jet component 83 and the inner bottom of the cylindrical clean water tank 7 is limited. After the locking component 82 is extended into place, the jet component 83 is extended under the action of water pressure, and the clean water in the piston ring body 81 is sprayed out along the jet component 83 in the form of a jet, cleaning the inner bottom of the cylindrical clean water tank 7 and the bottom of the piston ring body 81.

[0041] Compared with the prior art, the embodiment of the present invention proposes a water purification tank assembly for a water purifier, which changes the previous form of internal and external air pressure balance of the cylindrical water purification tank 7, sets the top of the cylindrical water purification tank 7 as an open structure, and sets a piston ring mechanism 8 in the cylindrical water purification tank 7. The piston ring mechanism 8 can be adaptively moved according to the increase or decrease of the amount of clean water in the clean water tank, ensuring the internal and external air pressure balance in the clean water tank while avoiding contact between the clean water and the air, thereby eliminating secondary contamination of the clean water; in addition, water is supplied to the clean water tank along the top of the piston ring mechanism 8, and the locking assembly 82 is extended by the water pressure to lock the position of the piston ring body 81, and the jet assembly 83 is extended by the water pressure, and the clean water can be sprayed out in a jet-like manner through the jet assembly 83, thereby effectively cleaning the biofilm on the inner bottom of the cylindrical water purification tank 7 and the bottom of the piston ring body 81.

[0042] The present invention relates to a water purification tank assembly for a water purifier, which also includes a PPC composite filter element 2 and an RO membrane filter element 3, which are detachably mounted on the front end of a main frame 1; a mounting bracket 5, which is fixedly mounted on the rear end of the main frame 1, and a pipe connection chamber 13 is formed inside the mounting bracket 5. The components arranged in the pipe connection chamber 13 include but are not limited to a water inlet valve, a booster pump, a check valve, and a high-pressure switch; a partition joint 19, which is arranged at the rear end of the main frame 1, and is provided with a water inlet pipe quick plug joint, a clean water outlet pipe quick plug joint, a concentrated water outlet pipe quick plug joint, and an electrical connection plug; a computer board 4, which is fixedly mounted on one side of the top of the mounting bracket 5 near the PPC composite filter element 2; the components in the pipe connection chamber 13 are connected to the PPC composite filter element 2, the RO membrane filter element 3, the cylindrical clean water tank 7, the partition joint 19, and the like. The connection method between the board connector 19 and the computer board 4 is the existing technology and will not be elaborated here; the top of the main frame 1 is clamped with an upper cover 16, and the upper cover 16 is provided with a touch panel electrically connected to the computer board 4; the front of the main frame 1 is clamped with a front cover 14, and the rear is clamped with a rear cover 15, which are used to protect the internal components of the water purifier; the top of the mounting bracket 5 is fixedly installed with a clamping seat 6, which is used to clamp the cylindrical water purification tank 7; the bottom end of the cylindrical water purification tank 7 is inlaid with a UV sterilization lamp 17, which is controlled by the computer board 4 to disinfect and sterilize the clean water in the clean water tank; the bottom and top of the cylindrical water purification tank 7 are fixedly installed with a proximity switch 18, which is controlled by the computer board 4 to detect the position of the piston ring mechanism 8, so as to realize the detection of the clean water volume inside the cylindrical water purification tank 7.

[0043] In one embodiment provided by 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 the PPC composite filter element 2 and the RO membrane filter element 3 filter the raw water, the purified water can be introduced into the cylindrical water purification tank 7 for storage to ensure the continuity of water use when the water purifier is used subsequently.

[0044] In one embodiment of the present invention, a water inlet and a water outlet are provided on the cylindrical water purification tank 7, and a water inlet electromagnetic three-way valve 11 is provided on the water inlet of the cylindrical water purification tank 7, and a drainage electromagnetic three-way valve 12 is provided on the water outlet. Specifically, the water inlet of the water inlet electromagnetic three-way valve 11 is connected to the water outlet of the RO membrane filter element 3, and one group of water outlets of the water inlet electromagnetic three-way valve 11 is connected to the water inlet of the cylindrical water purification tank 7, and the other group of water outlets is connected to the piston ring body 81. The water inlet electromagnetic three-way valve 11 is controlled by the computer board 4 to control the flow of purified water into the purified water. The internal structure of the tank is adjusted in an adjustable manner, thereby realizing the adjustment of the working state of the piston ring mechanism 8; the water inlet of the drainage electromagnetic three-way valve 12 is connected with the water outlet of the cylindrical clean water tank 7, and one group of water outlets of the drainage electromagnetic three-way valve 12 is connected with the clean water outlet pipe, and the other group of water outlets is connected with the concentrated water outlet pipe. When the piston ring mechanism 8 is in the water storage state, the clean water in the clean water tank can be discharged through the clean water outlet pipe through the drainage electromagnetic three-way valve 12. When the piston ring mechanism 8 is in the cleaning state, the clean water in the clean water tank can be discharged through the concentrated water outlet pipe through the drainage electromagnetic three-way valve 12.

[0045] In the prior art, the filtered clean water still contains a small amount of microorganisms, which are attached to the inner wall of the cylindrical clean water tank 7. With the increase of the amount of attachment and the reproduction of microorganisms over a long period of time, a biofilm is easily formed inside the cylindrical clean water tank 7, which will affect the water quality of the clean water. The biofilm also covers the UV sterilization lamp 17, affecting the sterilization effect and causing a vicious cycle. Therefore, the following embodiments are proposed to solve the above problems.

[0046] In one embodiment provided by the present invention, a receiving inclined seat 9 is provided at the lower part of the inner side of the cylindrical clean water tank 7 for supporting the piston ring mechanism 8, and an inclined surface is provided at the contact position between the peripheral side and the bottom of the piston ring body 81, and 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, the piston ring mechanism 8 is supported by the receiving inclined seat 9, and the maximum downward stroke of the piston ring mechanism 8 is limited, thereby forming a cleaning area for the jet component 83 to work between the bottom of the piston ring body 81 and the bottom of the inner side of the clean water 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 component 83 can enter the interval, thereby realizing the cleaning of the biofilm on the receiving inclined seat 9 and the piston ring body 81.

[0047] In one embodiment provided by 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 assembly 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 clean water tank 7, and can simultaneously clean the side walls of the cylindrical clean water tank 7. Therefore, the biofilm will only grow on the bottom of the piston ring body 81, the inner bottom of the cylindrical clean water tank 7, and the side walls of the cleaning area formed by the piston ring body 81 and the inner bottom of the cylindrical clean water tank 7; it should also be noted that in order to ensure the cleaning effect of the jet assembly 83 on the bottom of the clean water tank, the piston ring mechanism 8 needs to be pushed against the bottom of the inner side of the cylindrical clean water tank 7 when in the cleaning state. Therefore, in the cleaning state, the locking assembly 82 is extended by the water pressure inside the piston ring body 81 and inserted into the locking groove 10, which can realize the locking of the position of the piston ring body 81 and limit the distance between the jet assembly 83 and the inner bottom of the cylindrical clean water tank 7.

[0048] In another embodiment provided by the present invention, the locking assembly 82 is located at an inclined position on the piston ring body 81. The locking assembly 82 includes a mounting cylinder sleeve 821 and a locking rod 822 movably sleeved inside the mounting cylinder sleeve 821. The front end of the locking rod 822 can be moved to the outside of the piston ring body 81 by the water pressure inside the piston ring body 81 and 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 mounting cylinder sleeve 821. It moves to the outside of the piston ring body 81 and is inserted into the locking groove 10 to lock the position of the piston ring body 81, thereby preventing the jet ejected by the jet assembly 83 from causing the piston ring body 81 to move upward due to the reaction force. In the cleaning state, the water pressure inside the piston ring body 81 always exists, 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 provided by the present invention, the locking assembly 82 also includes a return spring 823 movably mounted on the outside of 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 sleeve 821 is threadedly connected to the inside of the piston ring body 81, and the top of the mounting cylinder sleeve 821 is threadedly connected to a limiting stop ring 824, which is used to limit the position of the locking rod 822 when it is reset; when the cleaning is completed, the piston ring body 81 stops taking in 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 sleeve 821 under 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 in the water storage state can move up and down inside the cylindrical water purification tank 7.

[0050] In another embodiment provided by the present invention, the jet assembly 83 includes a second mounting cylinder sleeve 831 and a jet nozzle 832 movably mounted inside the second 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 inside the piston ring body 81. A jet hole 833 inclined upward or downward is provided at the lower side of the jet nozzle 832. Specifically, the second mounting cylinder sleeve 831 is threadedly connected to the bottom of the inner side of the piston ring body 81, and the top of the second mounting cylinder sleeve 831 is threadedly connected to the second limiting stop ring 836 for limiting the position of the jet nozzle 832 when it is reset; the jet nozzle 832 is affected by the water pressure, overcomes the elastic force of the second reset spring 834, and moves downward, and extends along the bottom of the piston ring body 81, so that the jet hole 833 is opened. 3 is exposed to the outside of the piston ring body 81. The clean water inside the piston ring body 81 passes through the installation cylinder sleeve 831 and enters the jet nozzle 832, and is finally ejected in a jet shape along the jet hole 833. The jet ejected from the upward-inclined jet hole 833 can clean the bottom of the piston ring body 81, the receiving seat 9, the locking groove 10 and the surrounding side of the cleaning area, and the jet ejected from the downward-inclined jet hole 833 can clean the bottom of the inner side of the cylindrical clean water tank 7; a vertical jet hole 833 is opened in the middle of the bottom end of the jet nozzle 832, and the jet ejected from it can also clean the bottom of the inner side of the cylindrical clean 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 provided by the present invention, the top end of the jet nozzle 832 is fixedly connected to a driving turbine 835, and the circumference of the driving turbine 835 is tangent to the inner wall of the mounting cylinder sleeve 831. It should be noted that the angle of the jet ejected along the jet hole 833 is fixed, and it is impossible to achieve comprehensive cleaning of the bottom of the piston ring body 81, the inner bottom of the cylindrical clean water tank 7, the receiving inclined seat 9, the locking groove 10 position and the circumference of the cleaning area. By setting the driving turbine 835, when the clean water enters the jet nozzle 832 along the mounting cylinder sleeve 831, the water flow can push the driving turbine 835 to drive the jet nozzle 832 to rotate, thereby increasing the coverage area of ​​the jet ejected from the jet hole 833 and improving the cleaning effect of each position.

[0052] In another embodiment provided by the present invention, the jet assembly 83 further includes a second return spring 834 movably mounted on the outside of the jet nozzle 832, which is used to drive the jet nozzle 832 to reset after the water pressure inside the piston ring body 81 disappears. The rigidity coefficient of the second return spring 834 is greater than the rigidity coefficient of the first return spring 823. Specifically, when the internal pressure of the piston ring body 81 disappears, the second return spring 834 can drive the jet nozzle 832 to reset; the rigidity coefficients of the second return spring 834 and the first return spring 823 are limited so that the elastic force exerted on the locking rod 822 is less than the elastic force exerted 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 ejected by the jet nozzle 832 from extending in advance, causing the position of the piston ring body 81 to change, resulting in the locking rod 822 being unable to correspond to the position of 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, and a cross-shaped slit is provided on the leak-proof valve 84. When the jet nozzle 832 retracts to the inside of the mounting cylinder sleeve 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, thereby preventing the clean water in the clean water tank from mixing with the water in the piston ring body 81.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various 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 scope of protection of the claims.

Claims

1. A water purification tank assembly for a water purifier, comprising a main frame (1), characterized in that: It also includes a cylindrical clean water tank (7) with an open top, which is arranged on the main frame (1) and is used to store clean water; A piston ring mechanism (8) is provided in the cylindrical clean water tank (7); the upper area of ​​the piston ring mechanism (8) is a balance chamber, and the lower area is a water storage chamber; the piston ring mechanism (8) comprises a piston ring body (81), and a locking assembly (82) is provided on the circumference of the piston ring body (81), and a jet assembly (83) is provided on the bottom; The piston ring mechanism (8) has two working states: a water storage state and a 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 the water volume; in the cleaning state, clean water flows into the clean water tank through the piston ring mechanism (8), and the locking component (82) is extended along the circumference of the piston ring body (81) by the action of water pressure to lock the position of the piston ring body (81), and the jet component (83) is extended by the action of water pressure to perform jet cleaning on the inner bottom of the cylindrical clean water tank (7) and the bottom of the piston ring body (81).

2. A water purification tank assembly for a water purifier according to claim 1, characterized in that: A PPC composite filter element (2) and an RO membrane filter element (3) are detachably mounted on 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.

3. A water purification tank assembly for a water purifier according to claim 1, characterized in that: The cylindrical water purification tank (7) is provided with a water inlet and a water outlet, and the water inlet of the cylindrical water purification tank (7) is provided with a water inlet electromagnetic three-way valve (11), and the water outlet is provided with a water discharge electromagnetic three-way valve (12).

4. A water purification tank assembly for a water purifier according to claim 1, characterized in that: A receiving inclined seat (9) is provided at the lower portion of the inner side of the cylindrical clean water tank (7) for supporting the piston ring mechanism (8). A slope is provided at the contact position between the circumference of the piston ring body (81) and the bottom. The slope ratio of the receiving inclined seat (9) is greater than the slope ratio of the upper slope of the piston ring body (81).

5. A water purification tank assembly for a water purifier according to claim 4, characterized in that: A locking groove (10) is provided on the lower edge of the receiving inclined seat (9) for cooperating with the locking assembly (82) to lock the position of the piston ring body (81).

6. A water purification tank assembly for a water purifier according to claim 5, characterized in that: The locking assembly (82) is located at an inclined surface on the piston ring body (81). The locking assembly (82) includes a mounting cylinder sleeve (821) and a locking rod (822) movably mounted inside the mounting cylinder sleeve (821). The front end of the locking rod (822) can be moved to the outside of the piston ring body (81) under the action of the internal water pressure of the piston ring body (81) and inserted into the locking groove (10).

7. A water purification tank assembly for a water purifier according to claim 6, characterized in that: The locking assembly (82) further includes a return spring (823) movably mounted on the outside of the locking rod (822) and used to drive the locking rod (822) to return to its original position after the internal water pressure of the piston ring body (81) disappears.

8. A water purification tank assembly for a water purifier according to claim 7, characterized in that: The jet assembly (83) includes a second mounting cylinder sleeve (831) and a jet nozzle (832) movably mounted inside the second 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 internal water pressure of the piston ring body (81). A jet hole (833) inclined upward or downward is opened below the peripheral side of the jet nozzle (832).

9. A water purification tank assembly for a water purifier according to claim 8, characterized in that: The top end of the jet nozzle (832) is fixedly connected to a driving turbine (835), and the circumferential side of the driving turbine (835) is tangent to the inner wall of the second mounting cylinder sleeve (831).

10. The water purification tank assembly for a water purifier according to claim 8, characterized in that: The jet assembly (83) further includes a second return spring (834) movably mounted on the outside of the jet nozzle (832), which is used to drive the jet nozzle (832) to return after the internal water pressure of the piston ring body (81) disappears. The rigidity coefficient of the second return spring (834) is greater than the rigidity coefficient of the first return spring (823).

Images