Pretreatment filter element and water purification system

Abstract

The utility model relates to the technical field of water purification equipment, in particular to a pretreatment filter element and a water purification system. The pretreatment filter element comprises a filter bottle, a filter layer, a lifting mechanism and a driving part, wherein the filter layer is arranged in the filter bottle; the lifting mechanism is arranged in the filter bottle and is connected with the filter layer; the driving part is arranged outside the filter bottle and is used for driving the lifting mechanism to lift. During self-cleaning, the filter layer is driven by the lifting mechanism to be switched back and forth between the bending state and the stretching state, pollutants attached and deposited on the surface of the filter layer can be removed, self-cleaning is more thorough, the anti-pollution performance of the pretreatment filter element is improved, the element replacement time of the pretreatment filter element is delayed, and the use cost of a user is reduced; and raw material resources for pretreating the filter element are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a pre-treatment filter element and a water purification system. Background Art

[0002] As people pay more attention to and pursue a healthy life, water purifiers have become a widely used household and commercial water treatment equipment. Water purifiers can effectively filter out impurities such as rust, bacteria, heavy metals, and absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in the water. The water purification system of the water purifier mainly includes pre-treatment filter elements and deep treatment filter elements. The pre-treatment filter element is used to filter out large particles of impurities, and the deep treatment filter element generally uses reverse osmosis membranes, nanofiltration membranes or ultrafiltration membranes to filter out smaller impurities, bacteria, etc.

[0003] The pretreatment filter element is prone to clogging during use, affecting the water flow rate. In the prior art, the method to improve the clogging of the pretreatment filter element and prevent the flow rate from decreasing mostly adopts frequent replacement of the pretreatment filter element, but this method greatly increases the user's usage cost and causes waste of raw materials of the pretreatment filter element. Utility Model Content

[0004] The utility model aims to provide a pre-treatment filter element and a water purification system, which reduces the use cost of users and saves the raw material resources of the pre-treatment filter element.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A pre-treatment filter element, comprising:

[0007] Filter bottle;

[0008] A filter layer is arranged in the filter bottle;

[0009] A lifting mechanism is disposed in the filter bottle and connected to the filter layer;

[0010] A driving member is arranged outside the filter bottle, and the driving member is used to drive the lifting mechanism to move up and down.

[0011] As a preferred technical solution for the pre-treatment filter element, the lifting mechanism includes:

[0012] A lifting cylinder is arranged in the filter bottle and connected to the lower end of the filter layer;

[0013] A cam is disposed in the lifting cylinder, the cam is drivingly connected to the driving member, and the driving member can drive the cam to rotate;

[0014] The outer wall of the cam is provided with a spiral groove that rises in a spiral direction, and the inner wall of the lifting cylinder is provided with a protrusion, which is arranged in the spiral groove and can move along the spiral groove; a guide structure is provided between the outer wall of the lifting cylinder and the inner wall of the filter bottle, and the guide structure is configured to limit the lifting cylinder to move only along the height direction of the filter bottle.

[0015] As an optimal technical solution for the pretreatment filter element, the guide structure includes a guide rail and a guide groove. The guide rail is provided on one of the inner wall of the filter bottle and the outer wall of the lifting cylinder, and the guide groove is provided on the other. The guide rail and the guide groove both extend along the height direction of the filter bottle, and the guide rail cooperates with the guide groove.

[0016] As a preferred technical solution for the pre-treatment filter element, the driving member is a motor.

[0017] As a preferred technical solution for the pre-treatment filter element, the filter bottle comprises a bottle body and a bottle cap, and the bottle cap is detachably connected to the bottle body.

[0018] As a preferred technical solution for the pre-treatment filter element, an upper support plate is provided at the upper end of the filter layer, and a lower support plate is provided at the lower end. The upper support plate is detachably connected to the bottle cap, and the lower support plate is connected to the lifting mechanism.

[0019] As an optimal technical solution for the pre-treatment filter element, a first connecting portion is convexly provided on the upper support plate, and a second connecting portion is convexly provided on the bottle cap, one of the first connecting portion and the second connecting portion is provided with an external thread, and the other is provided with an internal thread, and the first connecting portion and the second connecting portion are threadedly connected.

[0020] As a preferred technical solution for the pre-treatment filter element, the bottom end of the filter bottle has a receiving cavity, and the driving member is located in the receiving cavity.

[0021] As a preferred technical solution for the pre-treatment filter element, the driving member is connected to the filter bottle via screws; and the output shaft of the driving member is engaged with a slot on the cam.

[0022] A water purification system, comprising:

[0023] A water purification component, comprising a first pipeline and a pre-treatment filter element, a water inlet valve, a booster pump, a deep treatment filter element and a water outlet structure as described in any of the above schemes, which are arranged on the first pipeline and arranged in sequence along the flow direction of the fluid in the first pipeline;

[0024] A flushing assembly, comprising a second pipeline and a flushing valve arranged on the second pipeline, wherein one end of the second pipeline is connected to the pre-treatment filter element, and the other end is a drainage end;

[0025] Acquire cleaning information, and control the opening and closing of the water inlet valve, the booster pump and the flushing valve according to the cleaning information.

[0026] Beneficial effects of the utility model:

[0027] The utility model provides a pre-treatment filter element, including a filter bottle, a filter layer, a lifting mechanism and a driving member, wherein the driving member can drive the lifting mechanism to lift, and the lifting mechanism can drive the filter layer to switch back and forth between a bent state and an extended state. The pre-treatment filter element is applied to a water purification system and can realize self-cleaning. When the pre-treatment filter element is self-cleaning, the filter layer is driven to switch back and forth between a bent state and an extended state by the lifting mechanism, and pollutants attached to and deposited on the surface of the filter layer can be removed. The self-cleaning is more thorough, the anti-pollution performance of the pre-treatment filter element is improved, the replacement time of the pre-treatment filter element is delayed, the user's use cost is reduced, and the raw material resources of the pre-treatment filter element are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the principle of the water purification system provided by the embodiment of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the pre-treatment filter element involved in the embodiment of the utility model;

[0030] Figure 3 It is a cross-sectional view of the pre-treatment filter element involved in the embodiment of the utility model when the lifting mechanism does not drive the filter layer to rise;

[0031] Figure 4 It is a cross-sectional view of the pre-treatment filter element involved in the embodiment of the utility model after the lifting mechanism drives the filter layer to rise;

[0032] Figure 5 It is a structural schematic diagram of the pre-treatment filter element involved in the embodiment of the utility model after the filter bottle is hidden and the lifting mechanism does not drive the filter layer to rise;

[0033] Figure 6 It is a structural schematic diagram of the pre-treatment filter element involved in the embodiment of the utility model after the filter bottle is hidden and the lifting mechanism drives the filter layer to rise;

[0034] Figure 7 This is a schematic diagram of the structure of the bottle body involved in the embodiment of the utility model Figure 1 ;

[0035] Figure 8 This is a schematic diagram of the structure of the bottle body involved in the embodiment of the utility model Figure 2 ;

[0036] Fig. 9 It is a structural schematic diagram of the lifting cylinder involved in the embodiment of the utility model;

[0037] Fig.10 It is a structural schematic diagram of the cam involved in the embodiment of the utility model;

[0038] Fig.11 It is a flow chart of a control method of a water purification system provided in an embodiment of the utility model.

[0039] In the figure:

[0040] 11. First pipeline; 12. Pretreatment filter element; 13. Water inlet valve; 14. Booster pump; 15. Deep treatment filter element; 16. Water outlet structure; 161. One-way high-pressure switch; 162. Mechanical faucet; 21. Second pipeline; 22. Flush valve; 31. Third pipeline; 32. Wastewater valve; 41. Pressure sensor; 42. Flow meter; 50. Turbidity sensor;

[0041] 121, filter bottle; 1211, bottle body; 1211a, guide rail; 1211b, accommodating chamber; 1212, bottle cap; 1212a, first water inlet; 1212b, first water outlet; 1212c, flushing port; 1212d, second connecting portion; 122, filter layer; 123, upper support plate; 1231, first connecting portion; 124, lower support plate; 125, driving member; 126, lifting mechanism; 1261, lifting cylinder; 1261a, protrusion; 1261b, guide groove; 1262, cam; 1262a, spiral groove. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] like Figures 1 to 10 As shown, an embodiment of the utility model provides a water purification system, including a water purification component, a flushing component, a waste water component, a first detection component and a second detection component.

[0050] Reference Figure 1The water purification component includes a first pipeline 11, a pre-treatment filter element 12, a water inlet valve 13, a booster pump 14, a deep treatment filter element 15 and a water outlet structure 16. The pre-treatment filter element 12, the water inlet valve 13, the booster pump 14, the deep treatment filter element 15 and the water outlet structure 16 are all arranged in the first pipeline 11, and are sequentially distributed along the flow direction of the fluid in the first pipeline 11. The pre-treatment filter element 12 has a first water inlet 1212a, a first water outlet 1212b and a flushing port 1212c. The first water inlet 1212a and the first water outlet 1212b of the pre-treatment filter element 12 are connected to the first pipeline 11. The deep treatment filter element 15 has a second water inlet, a second water outlet and a wastewater port. The second water inlet and the second water outlet of the deep treatment filter element 15 are connected to the first pipeline 11. The flushing component includes a second pipeline 21 and a flushing valve 22, and the flushing valve 22 is arranged in the second pipeline 21. One end of the second pipeline 21 is connected to the flushing port 1212c of the pre-treatment filter element 12, and the other end is a drainage end. The wastewater component includes a third pipeline 31 and a wastewater valve 32. The wastewater valve 32 is arranged in the third pipeline 31. One end of the third pipeline 31 is connected to the wastewater port of the deep treatment filter element 15, and the other end is a drainage end. Preferably, the drainage end of the second pipeline 21 and the drainage end of the third pipeline 31 are connected to the drainage pipeline after merging. This embodiment can control the water purification component, the flushing component and the wastewater component according to the cleaning information. It should be noted that the cleaning information can be the blockage condition of the pre-treatment filter element 12 or the turbidity of the water in the system. The cleaning information includes the opening condition for reaching self-cleaning and the closing condition for reaching self-cleaning.

[0051] The start condition of self-cleaning is obtained through the first detection component, which is used to detect the blockage degree of the pretreatment filter element 12 during the water production process. The first detection component is connected to the water inlet valve 13, the booster pump 14 and the flushing valve 22. The first detection component includes a pressure sensor 41, which is arranged in the first pipeline 11 and located upstream of the pretreatment filter element 12. The pressure sensor 41 is used to detect the pressure of the water in front of the pretreatment filter element 12. And / or, the first detection component includes a flow meter 42, which is arranged in the first pipeline 11 and located downstream of the pretreatment filter element 12. The flow meter 42 is used to detect the flow of water after the pretreatment filter element 12. That is, the first detection component includes the pressure sensor 41 or the flow meter 42, or the first detection component includes the pressure sensor 41 and the flow meter 42. The pressure sensor 41 detects that the pressure increase before the pre-treatment filter element 12 reaches a set value, for example, 15%; and / or the flow meter 42 detects that the flow decrease after the pre-treatment filter element 12 reaches a set value, for example, 5%, then it is determined that the blockage degree of the pre-treatment filter element 12 reaches the start condition of self-cleaning.

[0052] The closing condition of self-cleaning is obtained by the second detection element, which is used to detect the turbidity of water in the pre-treatment filter element 12 when the pre-treatment filter element 12 is self-cleaning. The second detection element is connected to the water inlet valve 13, the booster pump 14 and the flushing valve 22. In this embodiment, the second detection element is a turbidity sensor 50.

[0053] The water outlet structure 16 includes a one-way high-pressure switch 161 and a mechanical faucet 162 arranged along the flow direction. The one-way high-pressure switch 161 is connected to the water inlet valve 13 in communication. When pure water is not needed, the mechanical faucet 162 is closed. The one-way high-pressure switch 161 can sense the pressure of pure water, and then control the water inlet valve 13 to close, thereby stopping the input of raw water. In addition, the one-way high-pressure switch 161 also serves as a one-way valve, which can prevent the reverse flow of pure water in the first pipeline 11 and ensure that the mechanical faucet 162 can normally discharge pure water. The one-way high-pressure switch 161 and the mechanical faucet 162 cooperate with each other to ensure that the water outlet structure 16 is well sealed and does not leak. The one-way high-pressure switch 161 realizes the opening and closing of the water inlet valve 13 through the control module. Its control principle is the existing technology in this field, and this embodiment will not be repeated here.

[0054] Reference Figures 2 to 10 The pretreatment filter element 12 includes a filter bottle 121, a filter layer 122, a lifting mechanism 126 and a driving member 125. The filter layer 122 is arranged in the filter bottle 121. The first water inlet 1212a, the first water outlet 1212b and the flushing port 1212c are all arranged in the filter bottle 121. The first water inlet 1212a and the flushing port 1212c are both connected to the area outside the filter layer 122 in the filter bottle 121, and the first water outlet 1212b is connected to the area inside the filter layer 122 in the filter bottle 121. The driving member 125 is used to drive the lifting mechanism 126, and the lifting mechanism 126 can drive the filter layer 122 to switch between a bent state and an extended state. The detection end of the second detection member is located in the area outside the filter layer 122 in the filter bottle 121. The filter layer 122 adopts a fiber filter layer 122, and the fiber filter layer 122 is elastic and can undergo a certain deformation. The fiber filter layer 122 can be bent or stretched under the drive of the lifting mechanism 126. When the pre-treatment filter element 12 performs self-cleaning, the driving member 125 drives the lifting mechanism 126 to drive the filter layer 122 to switch back and forth between the bent state and the stretched state, so that the pollutants attached to the filter layer 122 can be shaken off.

[0055] The lifting mechanism 126 includes a lifting cylinder 1261 and a cam 1262. The lifting cylinder 1261 is arranged in the filter bottle 121 and is connected to the lower end of the filter layer 122. The cam 1262 is arranged in the lifting cylinder 1261. The cam 1262 is drivingly connected to the driving member 125. The driving member 125 can drive the cam 1262 to rotate. The outer peripheral wall of the cam 1262 is provided with a spiral groove 1262a that rises in a spiral. The inner wall of the lifting cylinder 1261 is provided with a protrusion 1261a. The protrusion 1261a is arranged in the spiral groove 1262a and can move along the spiral groove 1262a. A guide structure is provided between the outer wall of the lifting cylinder 1261 and the inner wall of the filter bottle 121. The guide structure is configured to limit the lifting cylinder 1261 to move only along the height direction of the filter bottle 121. The driving member 125 can drive the cam 1262 to rotate. When the cam 1262 rotates, the lifting cylinder 1261 is lifted and lowered through the cooperation of the spiral groove 1262a and the protrusion 1261a and the limitation of the guide structure, and then the lifting cylinder 1261 drives the filter layer 122 to switch back and forth between the bending state and the extension state. In this embodiment, the driving member 125 is a motor, and the driving member 125 is located on the outside of the filter bottle 121. Preferably, the bottom end of the filter bottle 121 has a accommodating chamber 1211b, and the driving member 125 is located in the accommodating chamber 1211b to protect the driving member 125. The fixing between the driving member 125 and the filter bottle 121 can be fixed by screws or by buckles. In this embodiment, screws are used.

[0056] The guide structure includes a guide rail 1211a and a guide groove 1261b. The guide rail 1211a is provided on one of the inner wall of the filter bottle 121 and the outer wall of the lifting cylinder 1261, and the guide groove 1261b is provided on the other. The guide rail 1211a and the guide groove 1261b both extend along the height direction of the filter bottle 121. The guide rail 1211a and the guide groove 1261b are guided and matched. Under the restriction of the guide rail 1211a and the guide groove 1261b, the lifting cylinder 1261 can only move up and down along the height direction of the filter bottle 121.

[0057] In this embodiment, the filter bottle 121 includes a bottle body 1211 and a bottle cap 1212, the bottle cap 1212 is detachably connected to the bottle body 1211, and the first water inlet 1212a, the first water outlet 1212b and the flushing port 1212c are all arranged on the bottle cap 1212. By setting the filter bottle 121 as a detachably connected bottle body 1211 and bottle cap 1212, it is convenient to assemble and repair the filter layer 122 and the lifting mechanism 126. In addition, an upper support plate 123 is arranged at the upper end of the filter layer 122, and a lower support plate 124 is arranged at the lower end. The filter layer 122 is located between the upper support plate 123 and the lower support plate 124, and the filter layer 122 and the upper support plate 123 and the filter layer 122 and the lower support plate 124 can be connected by bonding. The upper support plate 123 and the bottle cap 1212 are detachably connected, and the lower support plate 124 is connected to the lifting cylinder 1261. A first connection portion 1231 is convexly provided on the upper support plate 123, and a second connection portion 1212d is convexly provided on the bottle cap 1212. One of the first connection portion 1231 and the second connection portion 1212d is provided with an external thread, and the other is provided with an internal thread. The first connection portion 1231 and the second connection portion 1212d are threadedly connected through the external thread and the internal thread. When assembling the pre-treatment filter element 12, the bottle cap 1212 can be connected to the upper support plate 123 first, and the lower support plate 124 can be connected to the lifting cylinder 1261, so that the bottle cap 1212, the upper support plate 123, the filter layer 122, the lower support plate 124, the lifting cylinder 1261 and the cam 1262 form an integral module and then assembled with the bottle body 1211, which makes assembly easier. Preferably, a slot is provided on the cam 1262, and the output shaft of the driving member 125 can be engaged with the slot. After the above-mentioned overall module is assembled with the bottle body 1211, the output shaft of the driving member 125 is engaged with the cam 1262 to complete the overall assembly of the pre-treatment filter element 12.

[0058] like Fig.11 As shown, the embodiment of the utility model also provides a control method of a water purification system, comprising:

[0059] It is detected that the water outlet structure 16 is opened.

[0060] The water inlet valve 13 is controlled to open, the booster pump 14 is started, the flushing valve 22 and the wastewater valve 32 are closed, and the water production process begins. The raw water flows out of the water outlet structure 16 through the pre-treatment filter element 12, the water inlet valve 13 and the deep treatment filter element 15.

[0061] Acquiring cleaning information to achieve self-cleaning start conditions. Self-cleaning start conditions include: the pressure sensor 41 detects that the pressure increase before the pre-treatment filter element 12 reaches a first set value, such as 15%; and / or the flow meter 42 detects that the flow reduction after the pre-treatment filter element 12 reaches a second set value, such as 5%.

[0062] The water inlet valve 13 is controlled to be closed, the booster pump 14 is stopped, the flushing valve 22 is opened, and the wastewater valve 32 remains closed. At the same time, the driving member 125 of the pre-treatment filter element 12 is controlled to drive the lifting mechanism 126 to drive the filter layer 122 to repeatedly switch between the bending state and the extension state, and the self-cleaning process of the pre-treatment filter element 12 is started. The raw water enters the pre-treatment filter element 12 through the first water inlet 1212a of the pre-treatment filter element 12, and then is discharged through the flushing port 1212c of the pre-treatment filter element 12 and the flushing valve 22 together with the pollutants shaken off the filter layer 122 driven by the lifting mechanism 126, thereby realizing the self-cleaning of the pre-treatment filter element 12.

[0063] The cleaning information is obtained to meet the self-cleaning shutdown condition. The self-cleaning shutdown condition includes: the second detection element detects that the turbidity in the pre-treatment filter element 12 is less than a preset value. The turbidity value in the pre-treatment filter element 12 is detected by the second detection element. In this embodiment, the preset value is 0.5NTU.

[0064] The flushing valve 22 is controlled to be closed, the water inlet valve 13 is opened, the booster pump 14 is started, the wastewater valve 32 remains closed, and the water production process is resumed.

[0065] Through the above-mentioned control method, automatic cleaning of the pretreatment filter element 12 is achieved, and there is no need to frequently replace the pretreatment filter element 12, which reduces the user's usage cost and avoids the waste of raw materials of the pretreatment filter element 12; in addition, through the structural setting of the pretreatment filter element 12, when the pretreatment filter element 12 is self-cleaning, its lifting mechanism 126 can drive the filter layer 122 to switch back and forth between the bending state and the extension state to remove the pollutants attached to and deposited on the surface of the filter layer 122, so that the self-cleaning is more thorough, the anti-pollution performance of the pretreatment filter element 12 is improved, the replacement time of the pretreatment filter element 12 is delayed, the user's usage cost is further reduced, and the raw material resources of the pretreatment filter element 12 are saved.

[0066] In addition, in the present embodiment, the deep treatment filter element 15 adopts an RO membrane reverse osmosis filter element. Organic protective agents such as glycerin and surfactants will be added to the RO membrane reverse osmosis filter element before leaving the factory to enable long-term storage, and these organic substances will have an adverse effect on human health, so when the water purification system is powered on for the first time, it is necessary to rinse the organic substances in the RO membrane reverse osmosis filter element. Therefore, the control method also includes: when the power is turned on for the first time, the water inlet valve 13 is controlled to open, the booster pump 14 is started, the wastewater valve 32 is opened, and the flushing valve 22 is closed. After the raw water is filtered by the pretreatment filter element 12, the surface of the deep treatment filter element 15 is rinsed, and the wastewater after rinsing is discharged through the wastewater valve 32. After the flushing is completed, the water inlet valve 13, the booster pump 14 and the wastewater valve 32 are all controlled to be closed, and the flushing valve 22 remains closed.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A pre-treatment filter element, characterized in that: include: Filter bottle (121); A filter layer (122) is disposed in the filter bottle (121); A lifting mechanism (126) is disposed in the filter bottle (121) and connected to the filter layer (122); A driving member (125) is arranged outside the filter bottle (121), and the driving member (125) is used to drive the lifting mechanism (126) to move up and down.

2. The pre-treatment filter element according to claim 1, characterized in that: The lifting mechanism (126) comprises: A lifting cylinder (1261) is disposed in the filter bottle (121), and the lifting cylinder (1261) is connected to the lower end of the filter layer (122); A cam (1262) is disposed in the lifting cylinder (1261), the cam (1262) is drivingly connected to the driving member (125), and the driving member (125) can drive the cam (1262) to rotate; The outer wall of the cam (1262) is provided with a spirally ascending spiral groove (1262a), and the inner wall of the lifting cylinder (1261) is provided with a protrusion (1261a), and the protrusion (1261a) is arranged in the spiral groove (1262a) and can move along the spiral groove (1262a); a guide structure is provided between the outer wall of the lifting cylinder (1261) and the inner wall of the filter bottle (121), and the guide structure is configured to limit the lifting cylinder (1261) to move only along the height direction of the filter bottle (121).

3. The pre-treatment filter element according to claim 2, characterized in that: The guide structure comprises a guide rail (1211a) and a guide groove (1261b); the guide rail (1211a) is provided on one of the inner wall of the filter bottle (121) and the outer wall of the lifting cylinder (1261), and the guide groove (1261b) is provided on the other; the guide rail (1211a) and the guide groove (1261b) both extend along the height direction of the filter bottle (121), and the guide rail (1211a) and the guide groove (1261b) are guided and matched.

4. The pre-treatment filter element according to claim 1, characterized in that: The driving member (125) is a motor.

5. The pre-treatment filter element according to claim 1, characterized in that: The filter bottle (121) comprises a bottle body (1211) and a bottle cap (1212), and the bottle cap (1212) is detachably connected to the bottle body (1211).

6. The pre-treatment filter element according to claim 5, characterized in that: An upper support plate (123) is provided at the upper end of the filter layer (122), and a lower support plate (124) is provided at the lower end; the upper support plate (123) is detachably connected to the bottle cap (1212), and the lower support plate (124) is connected to the lifting mechanism (126).

7. The pre-treatment filter element according to claim 6, characterized in that: A first connecting portion (1231) is protrudingly provided on the upper support plate (123), and a second connecting portion (1212d) is protrudingly provided on the bottle cap (1212). One of the first connecting portion (1231) and the second connecting portion (1212d) is provided with an external thread, and the other is provided with an internal thread. The first connecting portion (1231) and the second connecting portion (1212d) are threadedly connected.

8. The pre-treatment filter element according to claim 1, characterized in that: The bottom end of the filter bottle (121) is provided with a receiving cavity (1211b), and the driving member (125) is located in the receiving cavity (1211b).

9. The pre-treatment filter element according to claim 2, characterized in that: The driving member (125) is connected to the filter bottle (121) via screws; and the output shaft of the driving member (125) is engaged with a slot on the cam (1262).

10. A water purification system, characterized in that: include: A water purification component, comprising a first pipeline (11), and a pre-treatment filter element (12) as claimed in any one of claims 1 to 9, a water inlet valve (13), a booster pump (14), a deep treatment filter element (15), and a water outlet structure (16) arranged on the first pipeline (11) and arranged in sequence along the flow direction of the fluid in the first pipeline (11); A flushing assembly, comprising a second pipeline (21) and a flushing valve (22) arranged on the second pipeline (21), wherein one end of the second pipeline (21) is connected to the pre-treatment filter element (12), and the other end is a drainage end; Cleaning information is obtained, and the opening and closing of the water inlet valve (13), the booster pump (14) and the flushing valve (22) are controlled according to the cleaning information.

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