Filter cartridge connector, filter cartridge assembly, and water purification apparatus

Abstract

The application relates to the technical field of water treatment equipment, in particular to a filter core joint, a filter core assembly and water purification equipment. The filter core joint comprises a joint main body, a first fixing structure and a cover. The joint main body is provided with a water channel and a mounting groove. The water channel is used for connecting a device interface of a device main body and a filter core water channel of a filter core main body. The first fixing structure is at least partially arranged in the mounting groove and is used for preventing the filter core water channel from being loosened from the device interface. The cover is arranged on a groove opening of the mounting groove and is used for limiting the first fixing structure in the mounting groove at least partially. The first fixing structure is arranged to keep the filter core water channel and the device interface in butt joint, and the first fixing structure is limited by the cover, so that the stability and reliability of butt joint of the filter core main body and the device main body can be improved.

Description

Technical Field

[0001] This application relates to the field of water treatment equipment technology, specifically to filter cartridge connectors, filter cartridge assemblies, and water purification equipment. Background Technology

[0002] With the advancement of technology, people have developed diverse needs for domestic water. Water purification equipment can filter the input water and then output the filtered water, providing users with water that meets their needs and greatly facilitating their lives. Water purification equipment generally consists of interconnected filter cartridges and a main body. The main body receives unfiltered water from the filter cartridges and then supplies the user with water that has been filtered by the filter cartridges. After a period of filtration, the filtration efficiency of the filter cartridges gradually decreases. To maintain stable water quality in the output water, the filter cartridges are usually configured as removable consumables. In actual use, the water input to the filter cartridges from the main body often has a certain water pressure, which tests the secure connection between the filter cartridges and the main body. Utility Model Content

[0003] In view of this, this application provides filter cartridge connectors, filter cartridge assemblies, and water purification equipment, which can improve the stability and reliability of the connection between the filter cartridge body and the equipment body.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a filter element connector, including a connector body, a first fixing structure, and a cover. The connector body is provided with a water channel and an installation groove. The water channel is used to connect the equipment interface of the equipment body and the filter element water channel of the filter element body. The first fixing structure is at least partially disposed in the installation groove to prevent the filter element water channel from becoming loose from the equipment interface. The cover is disposed on the opening of the installation groove to confine at least part of the first fixing structure within the installation groove.

[0005] In one specific embodiment, the first fixing structure includes an elastic member and a movable member. The elastic member is disposed in the mounting groove and one end abuts against the movable member, and the other end abuts against the inner wall of the mounting groove. The connector body is also provided with a telescopic hole communicating with the mounting groove. The movable member is disposed in the mounting groove and partially moves through the telescopic hole. The end of the movable member located outside the telescopic hole is used to cooperate with the device body, thereby fixing the connector body to the device body.

[0006] In one specific embodiment, the cover has a first limiting groove on the side facing the mounting groove, the first limiting groove is opened along the axial direction of the telescopic hole, and the elastic element is at least partially limited in the first limiting groove.

[0007] In one specific embodiment, the connector body is provided with a second limiting groove and a guide groove. The second limiting groove and the guide groove are located on the side wall of the mounting groove. The guide groove connects the opening of the second limiting groove and the mounting groove. The end of the elastic member away from the movable member is limited in the second limiting groove. The second limiting groove and the first limiting groove are arranged axially parallel to the telescopic hole.

[0008] In one specific embodiment, the movable part includes a snap-fit ​​part and a pressing part, and the telescopic hole includes a first through hole and a second through hole. The snap-fit ​​part is inserted into the first through hole, and the pressing part is inserted into the second through hole. The pressing part is used to be pressed to compress or stretch the elastic member, thereby retracting the snap-fit ​​part into the first through hole and unlocking the connector body from the device body.

[0009] In one specific embodiment, the movable member has a limiting protrusion at one end located in the mounting groove, the limiting protrusion being used to abut against the inner wall of the mounting groove on the periphery of the telescopic hole; and / or, the movable member has a third limiting groove at one end located in the mounting groove, and one end of the elastic member is limited to the third limiting groove.

[0010] In one specific embodiment, the surface of the connector body with the cap is a first side surface, and the first side surface has a transverse groove for engaging the device body; the filter element connector further includes a filter element socket, which is connected to the end of the connector body opposite to the first side surface and is used to insert the filter element body; the end of the filter element socket connected to the connector body forms a second side surface, and the height difference between the first side surface and the second side surface is greater than or equal to 10 mm; and / or, the width of the connector body is greater than or equal to 66 mm.

[0011] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a filter element assembly, including a filter element body and a filter element connector as described in any of the above specific embodiments; the filter element body is provided with a filter element water passage, and the water passage of the filter element connector is used to connect the filter element water passage and the device interface of the device body.

[0012] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a water purification device, including a device body and a filter element assembly as described above; the filter element assembly includes a filter element body and a filter element connector, the device body is provided with a device interface and a second fixing structure, the device interface is connected to the filter element water passage in the filter element body through the water passage in the filter element connector, and the second fixing structure cooperates with the first fixing structure of the filter element connector to prevent the filter element water passage from becoming loose from the device interface.

[0013] In one specific embodiment, the second fixing structure includes a clamp, one end of which is movably connected to the main body of the device and is sleeved on the filter element connector; the first fixing structure includes an elastic element and a movable element, the elastic element is disposed in the mounting groove of the filter element connector, one end of the elastic element abuts against the movable element and the other end abuts against the inner wall of the mounting groove, the connector body is also provided with a telescopic hole communicating with the mounting groove, the movable element is disposed in the mounting groove and partially moves through the telescopic hole, and one end of the movable element outside the telescopic hole abuts against the clamp and limits the clamp.

[0014] The beneficial effects of this application include: by using a first fixing structure and an installation groove that cooperate with each other, and by using a cover to limit the first fixing structure, while using the first fixing structure to connect the filter element interface and the equipment interface, the cover further mechanically constrains the first fixing structure, which can significantly enhance the connection stability between the filter element interface and the equipment interface, reduce the probability of unstable installation of the first fixing structure, and improve the stability and reliability of the connection between the filter element body and the equipment body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the water purification equipment of this application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section AA;

[0018] Figure 3 yes Figure 2 A magnified structural diagram of region D in the middle;

[0019] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section BB;

[0020] Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section CC;

[0021] Figure 6 This is an exploded structural diagram of the filter element connector of this application;

[0022] Figure 7This is a schematic diagram of the assembly structure of another embodiment of the water purification equipment of this application;

[0023] Figure 8 This is a schematic diagram of the assembly structure of another embodiment of the water purification equipment of this application;

[0024] Figure 9 yes Figure 8 A schematic diagram of the cross-sectional structure shown in the middle section EE;

[0025] Figure 10 yes Figure 8 A schematic diagram of the cross-sectional structure shown in section FF;

[0026] Figure 11 yes Figure 8 A schematic diagram of the cross-sectional structure shown in the middle section GG;

[0027] Figure 12 yes Figure 8 A schematic diagram of the cross-sectional structure shown in section HH.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Filter cartridge connector; 2. Connector body; 21. Water inlet channel; 22. Purified water outlet channel; 23. Mounting groove; 24. Second limiting groove; 25. Guide groove; 26. Telescopic hole; 261. First through hole; 262. Second through hole; 27. Concentrate outlet channel; 28. Central tube; 291. First side; 3. First fixing structure; 31. Elastic element; 32. Movable element; 321. Snap-fit ​​part; 322. Button 323. Pressure section; 324. Limiting protrusion; 4. Third limiting groove; 4. Cover; 41. First limiting groove; 5. Filter element body; 51. Water inlet; 52. Clean water outlet; 53. Concentrate outlet; 54. Inner cover; 6. Equipment body; 61. Water inlet; 62. Clean water outlet; 63. Second fixing structure; 64. Concentrate outlet; 7. Filter element socket; 71. Second side; 8. Transverse groove. Detailed Implementation

[0030] In this application, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] With the advancement of technology, people have developed diverse needs for domestic water. Water purification equipment can filter the input water and then output the filtered water, providing users with water that meets their needs and greatly facilitating their lives. Water purification equipment generally consists of interconnected filter cartridges and a main body. The main body receives unfiltered water from the filter cartridges and then supplies the user with water that has been filtered by the filter cartridges. After a period of filtration, the filtration efficiency of the filter cartridges gradually decreases. To maintain stable water quality in the output water, the filter cartridges are usually configured as removable consumables. In actual use, the water input to the filter cartridges from the main body often has a certain water pressure, which tests the secure connection between the filter cartridges and the main body.

[0036] In order to improve or solve the above technical problems, the inventors of this application, after long-term research, have proposed at least the following embodiments.

[0037] See Figure 1 , Figure 7 , Figure 8 , Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the water purification equipment of this application. Figure 7 This is a schematic diagram of the assembly structure of another embodiment of the water purification equipment of this application. Figure 8 This is a schematic diagram of the assembly structure of another embodiment of the water purification equipment of this application.

[0038] This application provides a filter cartridge connector 1 for connecting a filter cartridge body 5 to a water purification device body 6. The filter cartridge connector 1 includes a connector body 2, a first fixing structure 3, and a cover 4. The connector body 2 has a water passage and an installation groove 23. The water passage connects the device interface of the device body 6 and the filter cartridge water passage of the filter cartridge body 5. The first fixing structure 3 is at least partially disposed within the installation groove 23, and the first fixing structure 3 prevents the filter cartridge water passage from becoming detached from the device interface. The cover 4 covers the opening of the installation groove 23, and the cover 4 confines at least part of the first fixing structure 3 within the installation groove 23.

[0039] In the structure provided in this specific embodiment, the first fixing structure 3 and the mounting groove 23 cooperate with each other, and the cover 4 is used to limit the first fixing structure 3. While the first fixing structure 3 is used to connect the filter element interface and the equipment interface, the cover 4 is used to form a further mechanical constraint on the first fixing structure 3. This can significantly enhance the connection stability between the filter element interface and the equipment interface, reduce the probability of unstable installation of the first fixing structure 3, and improve the stability and reliability of the connection between the filter element body 5 and the equipment body 6.

[0040] Optionally, the cover 4 can be slightly lower than the top surface of the connector body 2, which can better protect the cover 4, reduce the impact of the external environment on the cover 4, reduce the probability of the cover 4 becoming loose or falling off, and improve the stability of the connection between the filter element and the equipment body 6.

[0041] Optionally, the cover 4 and the connector body 2 can be detachably connected to facilitate the maintenance and replacement of the first fixing structure 3. The cover 4 and the connector body 2 can also be fixedly connected by means of adhesive bonding, welding, etc., to prevent the first fixing structure 3 from failing due to the cover 4 loosening or falling off.

[0042] Specifically, the main body 6 may include a second fixing structure 63, which is connected to the main body 6 and is detachably connected to the first fixing structure 3 of the filter element connector 1. The first fixing structure 3 is used to detachably connect to the second fixing structure 63 of the main body 6, thereby fixing the connector body 2 to the main body 6.

[0043] Further reading Figure 2 , Figure 4 , Figure 5 , Figure 2 yes Figure 1A schematic diagram of the cross-sectional structure shown in section AA. Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section BB. Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section CC.

[0044] The equipment interface may include a water inlet interface 61 and a purified water outlet interface 62. One side of the water inlet interface 61 is connected to a water source, and the other side of the water inlet interface 61 is connected to the water inlet channel 21 of the filter element connector 1. One side of the purified water outlet interface 62 is used to output water, and the other side is connected to the purified water outlet channel 22 of the filter element connector 1.

[0045] The water passage can specifically include a water inlet channel 21 and a purified water outlet channel 22. One end of the water inlet channel 21 is connected to the water inlet interface 61 of the main body 6, and the other end of the water inlet channel 21 is connected to the water inlet end 51 of the filter element body 5. One end of the purified water outlet channel 22 is connected to the purified water outlet interface 62 of the main body 6, and the other end of the purified water outlet channel 22 is connected to the purified water outlet end 52 of the filter element body 5.

[0046] The filter element water circuit may include a water inlet end 51 and a purified water outlet end 52. The water inlet end 51 is connected to one end of the water inlet channel 21 of the filter element connector 1, and the water outlet end is connected to one end of the purified water outlet channel 22 of the filter element connector 1. The other end of the water inlet channel 21 is used to connect to the water inlet interface 61 of the device body 6, and the other end of the purified water outlet channel 22 is used to connect to the purified water outlet interface 62 of the device body 6.

[0047] Specifically, the filter element body 5 may include a central tube 28, which is inserted into the filter element body 5. One end of the central tube 28 is sealed, and the other end is connected to the purified water outlet channel 22. The side wall of the central tube 28 is provided with several through holes, and the purified water outlet channel 22 is connected to the purified water outlet end 52 of the filter element body 5 through the through holes and the tube body of the central tube 28.

[0048] See Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 9 yes Figure 8 A schematic diagram of the cross-sectional structure shown in the figure. Figure 10 yes Figure 8 A schematic diagram of the cross-sectional structure shown in section FF. Figure 11 yes Figure 8 A schematic diagram of the cross-sectional structure shown in the figure. Figure 12 yes Figure 8 A schematic diagram of the cross-sectional structure shown in section HH.

[0049] When the filter element body 5 includes an RO reverse osmosis filter element, the water channel may also include a concentrate outlet channel 27, the equipment interface may also include a concentrate outlet interface 64, the filter element water channel may also include a concentrate outlet end 53, and the concentrate outlet interface 64 is connected to the concentrate outlet end 53 of the filter element body 5 through the concentrate outlet channel 27.

[0050] Specifically, see Figure 12 The filter element body 5 may include an inner cover 54. The inner cover 54 is disposed over one end of the filter media inside the filter element body 5, and is sleeved and fixed to the connector body 2. A central tube 28 is inserted into the filter media and the inner cover 54, and one end of the central tube 28 that connects to the purified water outlet channel 22 is sleeved and fixed to the connector body 2. At least a partial water inlet channel 21 is formed on one side of the inner cover 54, and at least a partial concentrated water outlet channel 27 is formed on the other side of the inner cover 54.

[0051] See Figure 9 d1 is used to represent the diameter of the filter element body 5, and d1 is greater than or equal to 50mm and less than or equal to 130mm.

[0052] In one embodiment of this application, see reference Figure 5 R1 is the distance between the central axes of the two pipes forming the water inlet channel 21 and the purified water outlet channel 22. R1 is greater than or equal to 11 mm and less than or equal to 19 mm. Correspondingly, the distance between the central axes of the two pipes forming the water inlet interface 61 and the purified water outlet interface 62 is equal to R1.

[0053] See Figure 6 The outer contour dimensions of the two pipes forming the water inlet channel 21 and the purified water outlet channel 22 are all equal. R2 is the outer diameter of the sealing protrusion on the two pipes forming the water inlet channel 21 and the purified water outlet channel 22, and R2 is greater than or equal to 6.5 mm and less than or equal to 14.5 mm. R3 is the minimum outer diameter of the two pipes forming the water inlet channel 21 and the purified water outlet channel 22, and R3 is greater than or equal to 4.5 mm and less than or equal to 12.5 mm. R4 is the maximum outer diameter of the two pipes forming the water inlet channel 21 and the purified water outlet channel 22, and R4 is greater than or equal to 7.5 mm and less than or equal to 15.5 mm.

[0054] When the tube body is inserted into the equipment interface of the equipment body 6, the portions of the tube body with radial dimensions R2 and R3 are inserted into the equipment body 6, while the portion with radial dimension R4 can be exposed. The sealing protrusion on the tube body is used to cooperate with the sealing structure inside the equipment body 6 to seal the connection between the equipment interface and the filter element interface.

[0055] See Figure 4R5 is the inner diameter of the two pipes forming the water inlet interface 61 and the purified water outlet interface 62. R5 is greater than or equal to 7.5 mm and less than or equal to 15.5 mm. R6 is the inner diameter of the two pipes forming the water inlet channel 21 and the purified water outlet channel 22. R6 is greater than or equal to 2 mm and less than or equal to 8 mm.

[0056] Preferably, R1 can be 15mm. R2 can be 10.5mm. R3 can be 8.5mm. R4 can be 11.5mm. R5 can be 11.5mm. R6 can be 5mm.

[0057] Furthermore, in cases where the water channel includes a concentrated water outlet channel 27 and the equipment interface includes a concentrated water outlet interface 64, the pipe forming the concentrated water outlet channel 27 may also have the same outer contour dimensions as the two pipes forming the inlet channel 21 and the purified water outlet channel 22. The distance between the central axes of the pipe forming the concentrated water outlet interface 64 and the pipe forming the purified water outlet interface 62 is equal to R1. R5 can also represent the inner diameter of the pipe forming the concentrated water outlet interface 64.

[0058] In one embodiment, the three pipes forming the water inlet channel 21, the purified water outlet channel 22, and the concentrated water outlet channel 27 have the same inner diameter. The inner diameter of the three pipes forming the water inlet channel 21, the purified water outlet channel 22, and the concentrated water outlet channel 27 is greater than or equal to 2 mm and less than or equal to 8 mm, and / or, the distance between the central axis of the pipe forming the water inlet channel 21 and the central axis of the pipe forming the purified water outlet channel 22 is greater than or equal to 11 mm and less than or equal to 19 mm.

[0059] For specific applications, please refer to Figure 10 The inner diameter of the three pipes forming the water inlet channel 21, the purified water outlet channel 22, and the concentrated water outlet channel 27 is denoted as d2. The distance between the central axis of the pipe forming the water inlet channel 21 and the central axis of the pipe forming the purified water outlet channel 22, and the distance between the central axis of the pipe forming the concentrated water outlet channel 27 and the central axis of the pipe forming the purified water outlet channel 22, are equal and denoted as l2. By setting the inner diameter of each pipe to be greater than or equal to 2mm and less than or equal to 8mm, the smooth flow of water within the pipes can be ensured without making the pipes too large and occupying too much space.

[0060] In a specific embodiment of this application, see [reference]. Figure 1 and Figure 6The surface of the connector body 2 with the cap 4 is designated as the first side surface 291. The filter element connector 1 also includes a filter element socket 7, which is connected to the end of the connector body 2 opposite to the first side surface 291. The filter element socket 7 is used to insert the filter element body 5, and the end of the connector body 2 connected to the filter element socket 7 forms the second side surface 71. W1 is the height difference between the first side surface 291 and the second side surface 71, and W1 is greater than or equal to 10 mm.

[0061] Optionally, W2 is the width dimension of the connector body 2, and W2 can be greater than or equal to 66mm.

[0062] Optionally, the first side 291 of the connector body 2 may be provided with a transverse groove 8 for engaging the device body 6. The second fixing structure 63 may specifically include an insert rod. In this case, the first side 291 of the connector body 2 may have a transverse groove 8 corresponding to the insert rod, and the insert rod is inserted into the transverse groove 8 to lock the connector body 2 and the device body 6 together. W3 is the distance from the edge of the transverse groove 8 on the connector body 2 to the farthest end of the pipe forming the water inlet channel 21 and the purified water outlet channel 22. W3 is greater than or equal to 15mm and less than or equal to 90mm. In specific applications, W3 can be 15mm, 30mm, 50mm, 70mm, 90mm, etc.

[0063] like Figure 1 , Figure 2 , Figure 3 , Figure 10 , Figure 11 As shown, Figure 3 yes Figure 2 An enlarged structural diagram of region D. In a specific embodiment of this application, the first fixing structure 3 includes an elastic member 31 and a movable member 32. The elastic member 31 is disposed within the mounting groove 23 and one end abuts against the movable member 32, while the other end of the elastic member 31 abuts against the inner wall of the mounting groove 23. The connector body 2 also has a telescopic hole 26 communicating with the mounting groove 23. The movable member 32 is disposed within the mounting groove 23 and partially moves through the telescopic hole 26. The end of the movable member 32 located outside the telescopic hole 26 is used to cooperate with the equipment body 6, thereby fixing the connector body 2 to the equipment body 6.

[0064] In the structure provided in this specific embodiment, one end of the elastic element 31 abuts against the movable element 32, and the other end abuts against the inner wall of the mounting groove 23, forming a closed force circuit. Under the action of the elastic element 31, the movable element 32 is mechanically interlocked with the device body 6. Even with external impact, the elastic element 31 can still continuously provide locking force. The structure is simple and reliable, and the manufacturing and assembly costs are low, effectively ensuring the reliability of the connection between the filter element body 5 and the device body 6. Moreover, the elastic element 31 and the movable element 32 are all built into the mounting groove 23 and the telescopic hole 26, with only the head of the movable element 32 exposed to cooperate with the device body 6. The overall size is small, making it suitable for water purification equipment with limited installation space.

[0065] Optionally, the elastic element 31 can be a spring.

[0066] See Figure 3 , Figure 6 , Figure 6 This is an exploded structural diagram of the filter element connector of this application. In a specific embodiment of this application, the cover 4 is provided with a first limiting groove 41 on the side facing the mounting groove 23. The first limiting groove 41 is opened along the axial direction of the telescopic hole 26, and the elastic member 31 is at least partially limited in the first limiting groove 41.

[0067] In the structure provided in this specific embodiment, the first limiting groove 41 is axially opened along the telescopic hole 26, providing a guide channel for the elastic member 31 that is completely aligned with the direction of movement. After the elastic member 31 is limited therein, radial sway or wobble can be significantly suppressed, ensuring the movement of the subsequent movable member 32 and reducing the risk of jamming of the movable member 32. Furthermore, since the elastic member 31 is pre-positioned in the first limiting groove 41 of the cover 4, during assembly, the positioning of the elastic member 31 can be completed simultaneously by pressing the cover 4 into the mounting groove 23 at once, without the need for additional calibration procedures, thus reducing assembly steps and human error.

[0068] See Figure 3 , Figure 6 In one specific embodiment of this application, the connector body 2 is provided with a second limiting groove 24 and a guide groove 25, which are located on the side wall of the mounting groove 23. The guide groove 25 connects the second limiting groove 24 and the opening of the mounting groove 23, and the end of the elastic member 31 away from the movable member 32 is confined within the second limiting groove 24. The second limiting groove 24 and the first limiting groove 41 are arranged axially parallel to the telescopic hole 26.

[0069] In the structure provided in this specific embodiment, the elastic element 31 is constrained within the first limiting groove 41 on the cover 4 and the second limiting groove 24 of the connector body 2. A sliding assembly from the groove opening to the second limiting groove 24 is achieved using the guide groove 25. This allows the elastic element 31 to be limited axially and radially by the first limiting groove 41 and the second limiting groove 24, respectively, forming a guide channel running through the entire elastic element 31. This effectively restricts the radial movement and torsion of the elastic element 31, ensuring that the axis of the telescopic hole 26 coincides with the deformation path of the elastic element 31, making the movement path of the movable part 32 more stable, and ensuring smooth locking / unlocking without jamming. Furthermore, due to the presence of the guide groove 25, during assembly, it is only necessary to first slide the elastic element 31 into the second limiting groove 24 along the guide groove 25, and then fasten the cover 4 to engage the first limiting groove 41 with the elastic element 31, reducing the need for manual positioning tooling and lowering assembly costs.

[0070] See Figure 3 , Figure 5 , Figure 6 , Figure 10 , Figure 11 In one specific embodiment of this application, the movable member 32 includes a snap-fit ​​portion 321 and a pressing portion 322, and the telescopic hole 26 includes a first through hole 261 and a second through hole 262. The snap-fit ​​portion 321 is inserted into the first through hole 261, and the pressing portion 322 is inserted into the second through hole 262. The pressing portion 322 is used to be pressed to compress or stretch the elastic member 31, causing the snap-fit ​​portion 321 to retract into the first through hole 261, thereby unlocking the connector body 2 from the device body 6.

[0071] In the structure provided in this specific embodiment, the movable member 32 is divided into two parts: a snap-fit ​​part 321 and a pressing part 322. A first through hole 261 and a second through hole 262 are correspondingly provided, forming a coaxial but functionally separate movable member 32 structure. Simply pressing the exposed pressing part 322 allows the snap-fit ​​part 32 to be directly retracted into the mounting groove 23 via the same movable member 32, making operation simple and convenient. Furthermore, the snap-fit ​​part 321 and the pressing part 322 precisely cooperate with their respective through holes, forming a double coaxial guide, making the movement path of the movable member 32 more stable and improving the smoothness of the locking / unlocking action.

[0072] like Figure 6 As shown in a specific embodiment of this application, the movable part 32 is provided with a limiting protrusion 323 at one end located in the mounting groove 23. The limiting protrusion 323 is used to abut against the inner wall of the mounting groove 23 on the periphery of the telescopic hole 26.

[0073] In the structure provided in this specific embodiment, when the movable member 32 extends outward under the push of the elastic member 31, the limiting protrusion 323 can be locked onto the inner wall of the periphery of the telescopic hole 26, preventing the movable member 32 from sliding out of the first through hole 261 as a whole, and avoiding the first fixing structure 3 from falling apart through the telescopic hole 26 and causing failure. At the same time, the limiting protrusion 323 is limited in the radial direction of the elastic member 31 by the inner wall of the mounting groove 23, which can reduce the radial sway of the movable member 32 and the elastic member 31 during the extension and retraction process, so that the locking part 321 always remains coaxial with the first through hole 261, reducing the risk of jamming.

[0074] See Figure 3In one specific embodiment of this application, the movable member 32 has a third limiting groove 324 at one end located within the mounting groove 23, and one end of the elastic member 31 is limited within the third limiting groove 324. In the structure provided in this specific embodiment, the end of the elastic member 31 is limited by the third limiting groove 324 of the movable member 32. The third limiting groove 324 cooperates with the first limiting groove 41 and the second limiting groove 24 to ensure that the axis of the elastic member 31 coincides with the axis of the telescopic hole 26, eliminating radial offset. Furthermore, the end of the elastic member 31 is embedded inside the movable member 32, eliminating the need for additional fixing structures. The overall axial length of the first fixing structure 3 is shortened, resulting in a more compact structure. At the same time, during assembly, the elastic member 31 can be positioned by first inserting it into the third limiting groove 324, and then the whole assembly can be installed into the mounting groove 23, which can reduce assembly costs.

[0075] This application provides a filter element assembly, including a filter element body 5 and a filter element connector 1 as described in any of the above embodiments. The filter element body 5 has a filter element water passage, and the water passage of the filter element connector 1 is used to connect the filter element water passage and the device interface of the device body 6.

[0076] In the structure provided in this specific embodiment, the first fixing structure 3 and the mounting groove 23 cooperate with each other, and the cover 4 is used to limit the first fixing structure 3. While the first fixing structure 3 is used to connect the filter element interface and the equipment interface, the cover 4 is used to form a further mechanical constraint on the first fixing structure 3. This can significantly enhance the connection stability between the filter element interface and the equipment interface, reduce the probability of unstable installation of the first fixing structure 3, and improve the stability and reliability of the connection between the filter element body 5 and the equipment body 6.

[0077] This application provides a water purification device, including a device body 6 and a filter element assembly as described above. The filter element assembly includes a filter element body 5 and a filter element connector 1. The device body 6 is provided with a device interface and a second fixing structure 63. The device interface is connected to the filter element water passage in the filter element body 5 through a water passage in the filter element connector 1. The second fixing structure 63 cooperates with the first fixing structure 3 of the filter element connector 1 to prevent the filter element water passage from becoming loose from the device interface.

[0078] In the structure provided in this specific embodiment, the first fixing structure 3 and the mounting groove 23 cooperate with each other, and the cover 4 is used to limit the first fixing structure 3. While the first fixing structure 3 is used to connect the filter element interface and the equipment interface, the cover 4 is used to form a further mechanical constraint on the first fixing structure 3. This can significantly enhance the connection stability between the filter element interface and the equipment interface, reduce the probability of unstable installation of the first fixing structure 3, and improve the stability and reliability of the connection between the filter element body 5 and the equipment body 6.

[0079] like Figure 7 , Figure 8 As shown, Figure 7 This is a schematic diagram of the assembly structure of another embodiment of the water purification equipment of this application. Figure 8 This is a schematic diagram of the assembly structure of another embodiment of the water purification equipment of this application. In a specific embodiment of this application, the second fixing structure 63 includes a clamp, one end of which is movably connected to the main body 6 of the equipment, and the clamp is sleeved on the filter element connector 1. The first fixing structure 3 includes an elastic member 31 and a movable member 32. The elastic member 31 is disposed in the mounting groove 23 of the filter element connector 1, and one end of the elastic member 31 abuts against the movable member 32, while the other end of the elastic member 31 abuts against the inner wall of the mounting groove 23. The connector body 2 is also provided with a telescopic hole 26 communicating with the mounting groove 23. The movable member 32 is disposed in the mounting groove 23 and partially moves through the telescopic hole 26. The end of the movable member 32 located outside the telescopic hole 26 abuts against the clamp, thereby limiting the clamp.

[0080] In the structure provided in this specific embodiment, the elastic member 31 pushes the movable member 32 out of the telescopic hole 26. The movable member 32 abuts against the clamp, thereby limiting the clamp sleeved on the filter element connector 1. The clamp connected to the equipment body 6 and surrounding the filter element connector 1 locks the filter element connector 1 and the equipment body 6 together. This structure is simple and reliable. The movable member 32 and the elastic member 31 are almost entirely hidden in the mounting groove 23 and the telescopic hole 26. The clamp surrounds the outer wall of the filter element connector 1, occupying less space. It can effectively ensure the reliability of the connection between the filter element body 5 and the equipment body 6, and is suitable for water purification equipment with limited installation space.

[0081] In this application, the terms "embodiment" and "implementation" mean that a specific feature, part, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, parts, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A filter element connector, characterized in that, include: The connector body (2) is provided with a water channel and an installation groove (23). The water channel is used to connect the equipment interface of the equipment body (6) and the filter water channel of the filter body (5). The first fixing structure (3) is at least partially disposed in the mounting groove (23) to prevent the filter element water circuit from becoming loose from the equipment interface; A cover (4) is provided on the opening of the mounting groove (23) to at least partially confine the first fixing structure (3) within the mounting groove (23).

2. The filter element connector according to claim 1, characterized in that, The first fixing structure (3) includes an elastic element (31) and a movable element (32). The elastic element (31) is disposed in the mounting groove (23) and one end abuts against the movable element (32) and the other end abuts against the inner wall of the mounting groove (23). The connector body (2) is also provided with a telescopic hole (26) communicating with the mounting groove (23). The movable element (32) is disposed in the mounting groove (23) and partially moves through the telescopic hole (26). The end of the movable element (32) located outside the telescopic hole (26) is used to cooperate with the equipment body (6) to fix the connector body (2) and the equipment body (6).

3. The filter element connector according to claim 2, characterized in that, The cover (4) has a first limiting groove (41) on the side facing the mounting groove (23). The first limiting groove (41) is opened along the axial direction of the telescopic hole (26). The elastic element (31) is at least partially limited in the first limiting groove (41).

4. The filter element connector according to claim 3, characterized in that, The connector body (2) is provided with a second limiting groove (24) and a guide groove (25). The second limiting groove (24) and the guide groove (25) are located on the side wall of the mounting groove (23). The guide groove (25) connects the second limiting groove (24) and the groove of the mounting groove (23). The end of the elastic member (31) away from the movable member (32) is limited in the second limiting groove (24). The second limiting groove (24) and the first limiting groove (41) are arranged axially parallel to the telescopic hole (26).

5. The filter element connector according to claim 2, characterized in that, The movable part (32) includes a snap-fit ​​part (321) and a pressing part (322). The telescopic hole (26) includes a first through hole (261) and a second through hole (262). The snap-fit ​​part (321) is inserted into the first through hole (261), and the pressing part (322) is inserted into the second through hole (262). The pressing part (322) is used to be pressed to compress or stretch the elastic member (31), and to retract the snap-fit ​​part (321) into the first through hole (261) to unlock the connector body (2) from the device body (6).

6. The filter element connector according to claim 2, characterized in that, The movable part (32) has a limiting protrusion (323) at one end located in the mounting groove (23), the limiting protrusion (323) being used to abut against the inner wall of the mounting groove (23) around the telescopic hole (26); and / or, The movable part (32) is provided with a third limiting groove (324) at one end located in the mounting groove (23), and one end of the elastic part (31) is limited to the third limiting groove (324).

7. The filter element connector according to any one of claims 1 to 6, characterized in that, The connector body (2) has a first side surface (291) on one side where the cover (4) is provided. The first side surface (291) is provided with a transverse groove (8), which is used to snap the device body (6). The filter element connector (1) further includes a filter element socket (7), which is connected to the end of the connector body (2) opposite to the first side surface (291). The filter element socket (7) is used to insert the filter element body (5). The end of the filter element socket (7) connected to the connector body (2) forms a second side surface (71). The height difference between the first side surface (291) and the second side surface (71) is greater than or equal to 10 mm; and / or, The width of the connector body (2) is greater than or equal to 66 mm.

8. A filter element assembly, characterized in that, It includes a filter element body (5) and a filter element connector (1) as described in any one of claims 1 to 7; The filter element body (5) is provided with a filter element water passage, and the water passage of the filter element connector (1) is used to connect the filter element water passage and the equipment interface of the equipment body (6).

9. A water purification device, characterized in that, Includes the main body of the device (6) and the filter element assembly as described in claim 8; The filter element assembly includes a filter element body (5) and a filter element connector (1). The device body (6) is provided with a device interface and a second fixing structure (63). The device interface is connected to the filter element water passage in the filter element body (5) through the water passage in the filter element connector (1). The second fixing structure (63) cooperates with the first fixing structure (3) of the filter element connector (1) to prevent the filter element water passage from becoming loose from the device interface.

10. The water purification equipment according to claim 9, characterized in that, The second fixing structure (63) includes a clamp, one end of which is movably connected to the main body of the equipment, and the clamp is sleeved on the filter element connector (1); The first fixing structure (3) includes an elastic element (31) and a movable element (32). The elastic element (31) is disposed in the mounting groove (23) of the filter element connector (1), and one end of the elastic element (31) abuts against the movable element (32) and the other end abuts against the inner wall of the mounting groove (23). The connector body (2) is also provided with a telescopic hole (26) communicating with the mounting groove (23). The movable element (32) is disposed in the mounting groove (23) and partially moves through the telescopic hole (26). One end of the movable element (32) located outside the telescopic hole (26) abuts against the clamp and limits the clamp.

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