Filter element assembly facilitating element replacement

Abstract

The filter element assembly comprises a waterway plate and a filter element, the waterway plate is provided with a first water port, the filter element is provided with a second water port in butt joint communication with the first water port, and the filter element assembly further comprises a fixed disc fixedly connected with the waterway plate and provided with a first through cavity; the rotating disc is provided with a second through cavity coaxial with the first through cavity, the rotating disc is clamped between the fixed disc and the waterway plate, and the rotating disc rotates relative to the fixed disc so as to have a locking position for locking the filter element and an unlocking position for releasing the filter element; the filter element moves in the axial direction of the first through cavity so as to drive the rotary disc to be switched between the locking position and the unlocking position through the guide piece and the guide groove. When the filter element moves in the axial direction of the first through cavity, the guide piece is matched with the guide groove to drive the rotating disc to rotate, so that the rotating disc is switched between the locking position and the unlocking position, a driving piece used for driving the rotating disc to rotate is omitted, and miniaturization of the filter element assembly is facilitated.

Description

Technical Field

[0001] The present application belongs to the technical field of water purification equipment, and specifically relates to a filter element assembly that is convenient for element replacement. Background Art

[0002] As water pollution becomes more serious, the issue of water safety has gradually attracted people's attention. More and more families choose to use water purifiers to filter and purify water, making water purifiers one of the household appliances that can be seen everywhere in daily life. Water purifiers use filters to remove solid particles, bacteria, viruses, harmful chemicals and other impurities in water to make the water reach a certain degree of cleanliness. However, as the use time increases, impurities in the water will clog the filter element, so it is necessary to regularly disassemble and clean or replace the filter element to ensure the normal operation of the water purifier.

[0003] At present, common water purifiers usually include a base and a filter element. The base includes a waterway plate, a fixed disk and a turntable located between the waterway plate and the fixed disk. The turntable can rotate relative to the fixed disk to lock the filter element or unlock the filter element. The rotation of the turntable is driven by a pressing rod arranged on one side of the filter element and extending along the axial direction of the filter element. The turntable is driven to rotate by pressing the pressing rod to achieve locking or unlocking of the filter element, thereby achieving the fixing and separation of the filter element and the base, and achieving the replacement of the filter element. However, the convex design of the pressing rod increases the overall volume of the filter unit, which is not conducive to the miniaturization of the water purifier. Moreover, the entire core replacement operation includes at least two steps. First, the pressing rod needs to be manually pressed to unlock the filter element by the turntable, and secondly, the filter element needs to be pulled up after unlocking to remove the filter element. In order to facilitate the core replacement operation, it is often necessary to use both hands, one hand presses the pressing rod, and the other hand pulls the handle of the filter element to extract the filter element. Alternatively, you can first press the push rod with one hand, and when the filter element is unlocked, use the same hand to move to the handle position of the filter element to lift the filter element. The two-step operation reduces the efficiency of changing the filter element and also reduces the user experience. Utility Model Content

[0004] The present application provides a filter element assembly that is convenient for core replacement, so as to solve the technical problems of the prior art that core replacement has many operation steps and low core replacement efficiency.

[0005] The technical solution adopted in this application is:

[0006] 14. The filter element of claim 13, wherein the filter element is configured to have a first port, a second port, and a second port connected to the filter element to form a seal. The filter element is configured to have a first port, a second port, and a second port connected to the filter element to form a seal. The filter element is configured to have a first port, a second port, and a second port connected to the filter element to form a seal. The filter element is configured to have a first port, a second port, and a second port. The filter element is configured to have a first port, a second port, and a second port.

[0007] The filter element assembly for convenient core replacement of the present application also includes the following additional technical features:

[0008] One of the filter element and the turntable is provided with a plurality of the guide members at intervals along its own circumference, and the guide rail provided on the other of the two has inlets equal to the number of the guide members and a guide groove extending through along its own circumference; the inlet is an inlet for one of the two adjacent guide members to move into the guide groove, and an outlet for the other to move out of the guide groove, or the outlet is an outlet for one of the two adjacent guide members to move out of the guide groove, and an inlet for the other to move into.

[0009] The guide groove is provided with a first slide groove section and a second slide groove section which are connected to each other along the direction opposite to the rotation direction of the turntable, and a locking groove for locking the guide member is formed at the connecting position of the first slide groove section and the second slide groove section; the turntable rotates so that the guide member has an advancement stroke through the first slide groove section and an exit stroke through the second slide groove section.

[0010] The first slide groove section includes a first straight section, a first bent section and a second bent section connected in sequence, the second slide groove section includes a third bent section, a fourth bent section and a second straight section connected in sequence, and the locking groove is formed at the connecting position of the second bent section and the third bent section; the turntable rotates in one direction so that the guide member passes through the first slide groove section and the second slide groove section in sequence along a preset direction, and the filter element reciprocates along the axial direction of the first through cavity to achieve locking and disengagement with the turntable.

[0011] The first bending section and the second bending section have a first inner inflection point and a first outer inflection point at the connection position, and the first outer inflection point is located at the downstream side of the propulsion stroke compared to the first inner inflection point, so that the first inner inflection point and the first outer inflection point are staggered, and the transverse dimension between the first inner inflection point and the first outer inflection point is greater than the radius of the guide member to form a first corner; the second bending section and the third bending section have a second inner inflection point and a second outer inflection point at the connection position, and the second inner inflection point is located at the downstream side of the propulsion stroke compared to the second outer inflection point side, so that the second inner turning point and the second outer turning point are staggered, and the lateral dimension between the second inner turning point and the second outer turning point is greater than the radius of the guide member to form a second corner; the third bending section and the fourth bending section have a third inner turning point and a third outer turning point at the connecting position, and the third inner turning point is located on the upstream side of the exit stroke compared to the third outer turning point, so that the third inner turning point and the third outer turning point are staggered, and the lateral dimension between the third inner turning point and the third outer turning point is greater than the radius of the guide member to form a third corner.

[0012] The waterway plate or the fixed plate is provided with a plate stabilizing unit, and the plate stabilizing unit is used to keep the rotating plate at the locking position or the unlocking position.

[0013] The disk stabilizing unit includes at least two sets of disk stabilizing components arranged opposite to each other outside the turntable, and the disk stabilizing components include rolling bodies that abut against the turntable to apply rotational resistance to the turntable, and a first elastic member that presses the rolling bodies against the outer surface of the turntable.

[0014] The guide rail is arranged on the turntable, the guide member is arranged on the filter element, the fixed plate is provided with a limiting groove opposite to the inlet and the outlet positions, the filter element is provided with a limiting rib, and the limiting rib is plugged into the limiting groove to limit the rotation of the filter element along the circumference of the first through cavity.

[0015] One of the waterway plate or the rotating disk is provided with a plurality of first balls along the circumferential direction, and the other of the two is provided with a first friction surface in contact with the first balls; and / or one of the fixed plate or the rotating disk is provided with a plurality of second balls along the circumferential direction, and the other of the two is provided with a second friction surface in contact with the second balls.

[0016] The waterway plate is provided with an ejection mechanism for driving the filter element to move along the axial direction of the first through cavity to achieve rebound, the ejection mechanism includes a second elastic member and a push rod linked to the second elastic member, and the filter element is provided with an abutment plane that can abut against the push rod.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0018] 1. The filter element assembly of the present application includes a waterway plate, a filter element, a fixed disk and a rotating disk. The fixed disk is fixedly connected to the waterway plate, and the filter element is connected or disconnected from the fixed disk via the rotating disk, thereby realizing the connection or disconnection of the filter element and the waterway plate. The filter element moves along the axial direction of the first through cavity to switch between the locked position and the unlocked position, that is, when the user removes or installs the filter element, the user only needs to drive the filter element to move along the axial direction of the first through cavity in a one-step operation to realize the fixing and disconnection of the filter element, without the need for screwing or other operations. The process of replacing the filter element is simple and convenient, and the efficiency of core replacement is high. Moreover, for large-flux filter elements, the outer diameter of large-flux filter elements is larger than that of small-flux filter elements, and the method of rotating the filter element to disassemble and assemble the filter element is not conducive to the user's one-handed operation of the filter element. The linear pushing method in the present application is convenient and easy, and can be achieved with one-handed operation, which improves the user's The convenience of the core replacement operation; in addition, since the filter element moves axially along the first through cavity, and the fixed disk with the first through cavity is coaxially arranged with the rotating disk with the second through cavity, the rotating disk and the fixed disk share the space in the direction of movement of the filter element. Compared with the pressing rod for connecting the filter element and the waterway plate provided on the side of the filter element in the traditional technology, the rotating disk in the present application will not occupy the side space of the filter element, and will not give the user a sense of independence and abruptness visually, so that the integrity of the filter element assembly is relatively strong, and the rotating disk is clamped between the fixed disk and the waterway plate, which can provide a good protection effect on the rotating disk and reduce the interference of the outside world on the rotating disk to a certain extent. When the filter element moves along the axial direction of the first through cavity, the rotating disk is driven to rotate by the cooperation of the guide member and the guide groove, so that the rotating disk switches between the locked position and the unlocked position, eliminating the need for a separate driving member for driving the rotating disk to rotate, optimizing the structural design of the filter element assembly, and contributing to the miniaturization of the filter element assembly.

[0019] 2. As a preferred embodiment of the present invention, by providing multiple guide members and guide grooves adapted thereto, the rotational force that drives the turntable to rotate when the filter element moves is evenly distributed to the multiple guide members and guide grooves, reducing the force on a single guide member and the guide groove, thereby reducing the possibility of stress concentration at the connection between the guide member and the guide groove; in addition, the entrance of each guide groove can also serve as the exit of the guide member adjacent to the guide member adapted thereto. Therefore, during the installation of the filter element, the user does not need to pay special attention to accurately align the positions of the guide member and the entrance. Multiple entrances can all serve as entrances to the guide member, greatly reducing the difficulty of the user in installing the filter element and optimizing the user experience; moreover, since each entrance can serve as a guide member exit for the guide member to escape and the guide grooves are interconnected, continuous pressing and rebounding of the filter element can drive continuous rotation of the turntable, thereby improving the continuity and smoothness of the installation and separation of the filter element.

[0020] 3. As a preferred embodiment of the utility model, the guide groove is provided with a first chute section and a second chute section that are interconnected along the opposite direction of the rotation direction of the turntable, and a lock groove for locking the guide member is formed at the connection position of the first chute section and the second chute section; the turntable rotates so that the guide member has a push stroke passing through the first chute section and a withdrawal stroke passing through the second chute section. Along the opposite direction of the rotation of the turntable, the guide groove is divided into a first chute section and a second chute section, and a lock groove for locking the guide member is formed at the connection position of the first chute section and the second chute section. The design of the first chute section, the second chute section and the lock groove can realize the rapid and accurate movement of the guide member and the precise locking at the locking position, thereby ensuring the rapid and reliable connection between the filter bottle and the waterway plate. Moreover, the push stroke is used for installation, and the withdrawal stroke is used for disassembly. Through the guide member with a push stroke and a withdrawal stroke, the user can quickly and conveniently replace the filter element assembly, thereby improving the convenience of the core replacement operation, helping the user to more easily perform regular maintenance and replace the filter element to ensure the long-term effectiveness of the water purifier.

[0021] Furthermore, the multi-section design of the first slide section and the second slide section enables the user to only push the filter bottle in a straight line direction during the installation and disassembly of the filter element assembly, and the filter element assembly can move according to a preset trajectory, that is, the guide member slides along the multi-section structure of the first slide section and the second slide section to drive the filter bottle to be fed in a straight line direction, making the operation more convenient, and the requirements for the operating space of the entire operation process are relatively low, which can reduce the requirements of the filter element assembly and the water purifier in this application for the external use environment.

[0022] 4. As a preferred embodiment of the utility model, the first inner inflection point and the first outer inflection point are staggered at the connection position of the first bending section and the second bending section to form a first corner whose lateral dimension is greater than the radius of the guide member, the second inner inflection point and the second outer inflection point are staggered at the connection position of the second bending section and the third bending section to form a second corner whose lateral dimension is greater than the radius of the guide member, and the third inner inflection point and the third outer inflection point are staggered at the connection position of the third bending section and the fourth bending section to form a third corner whose lateral dimension is greater than the radius of the guide member, so that the guide member can move unidirectionally along the first corner, the second corner and the third corner respectively under the pushing action of the pushing mechanism, thereby avoiding the guide member retreating after letting go and affecting the smooth installation of the filter element. This embodiment can guide the unidirectional movement of the guide member by means of the special structural design of the first guide groove without adding other additional components. The structure is simple and reliable, and the manufacturing cost is low, thereby reducing the production cost.

[0023] 5. As a preferred embodiment of the present invention, by providing a stabilizing unit, when the turntable is in the locked position or the unlocked position, the stabilizing unit can stabilize the turntable to prevent the turntable from rotating, so that the guide member and the guide rail maintain the same relative position, thereby ensuring that the filter element can be firmly installed on the waterway plate and smoothly removed from the waterway plate. In particular, when the turntable is in the unlocked position, the presence of the stabilizing unit can stabilize the turntable in the unlocked position, so that when the filter element to be replaced is inserted along the axial direction of the first through cavity, the filter element can be smoothly inserted to drive the turntable to rotate from the unlocked position to the locked position, instead of the filter element being blocked by the locking groove on the turntable when being inserted, thereby ensuring the smooth operation of the core replacement.

[0024] 6. As a preferred embodiment of the present invention, by arranging limiting grooves opposite to the inlet and outlet positions on the fixed disk and arranging limiting ribs on the filter element, on the one hand, the filter element can be guided to move axially along the first through cavity through the cooperation of the limiting ribs and the limiting grooves, thereby preventing the filter element from moving poorly due to the force applied by the operator during installation or disassembly; on the other hand, since the turntable is clamped between the fixed disk and the waterway plate, the fixed disk is bound to block the turntable to a certain extent. When installing the filter element, the user can position the filter element by aligning the limiting ribs with the limiting grooves, thereby eliminating the inconvenience of the user observing the inlet and outlet positions on the turntable under the cover of the fixed disk, reducing the difficulty of the user installing the filter element, and improving the user's experience.

[0025] 7. As a preferred embodiment of the present invention, the ejection mechanism can play an auxiliary role in the installation or removal process of the filter element. When installing the filter element, the user presses the filter element axially along the first through cavity. After loosening the filter element, the filter element can be driven to move by the ejector rod under the elastic force of the second elastic member, so that the turntable reaches the locked position under the cooperation of the guide member and the guide groove; when removing the filter element, the user presses the filter element axially along the first through cavity. After loosening the filter element, the filter element can be driven to move by the ejector rod under the elastic force of the second elastic member, so that the turntable reaches the unlocked position under the cooperation of the guide member and the guide groove; that is, by setting the ejection mechanism, the user only needs to apply force to the filter element in one direction to achieve the installation and unlocking of the filter element without changing the force application direction during the installation and removal of the filter element, so that the assembly and disassembly process of the filter element is further simplified, which greatly improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 This is an exploded view of a filter element assembly according to one embodiment of the present application;

[0028] Figure 2 for Figure 1 A magnified view of part A;

[0029] Figure 3 This is a schematic diagram of the structure of a filter element assembly in one embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of the structure of a turntable in one implementation mode of the present application;

[0031] Figure 5 A cross-sectional view of a turntable according to an embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the structure of a fixed disk in one implementation mode of the present application;

[0033] Figure 7 This is a structural schematic diagram of a waterway plate in one embodiment of the present application;

[0034] Figure 8 An exploded view of the structure of a filter element assembly according to one embodiment of the present application.

[0035] List of reference numerals:

[0036] 1 waterway plate, 11 first ball bearing, 12 guide rib, 13 first convex edge;

[0037] 2 filter element, 21 limiting convex rib;

[0038] 3 fixed plate, 31 limiting groove, 32 guide groove, 33 second convex edge;

[0039] 4 rotating disk, 41 first friction surface, 42 second friction surface, 43 upper rotating groove, 44 lower rotating groove;

[0040] 5. Guide piece;

[0041] 6 guide rail, 61 entrance, 62 exit, 63 guide groove, 631 first slide groove section, 6311 first straight segment, 6312 first bending segment, 6313 second bending segment, 632 second slide groove section, 6321 second straight segment, 6322 third bending segment, 6323 fourth bending segment, 633 locking groove, 634 first inner turning point, 635 first outer turning point, 636 second inner turning point, 637 second outer turning point, 638 third inner turning point, 639 third outer turning point;

[0042] 7 a plate stabilizing assembly, 71 a rolling element, 72 a first elastic member;

[0043] 8 ejection mechanism, 81 second elastic member, 82 ejector rod. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0046] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] like Figures 1 to 8As shown, a filter element 2 assembly for convenient core replacement includes a waterway plate 1 and a filter element 2, wherein the waterway plate 1 is provided with a first water inlet, and the filter element 2 is provided with a second water inlet connected to the first water inlet, and further includes: a fixed disk 3, the fixed disk 3 is fixedly connected to the waterway plate 1, the fixed disk 3 is provided with a first through cavity; a rotating disk 4, the rotating disk 4 is provided with a second through cavity coaxial with the first through cavity, the rotating disk 4 is clamped between the fixed disk 3 and the waterway plate 1, and the rotating disk 4 rotates relative to the fixed disk 3 to have a lock to lock the filter element 2 The filter element 2 and the turntable 4 are respectively provided with a guide member 5 and a guide rail 6 adapted to the guide member 5, wherein the guide rail 6 has an inlet 61 for the guide member 5 to move in, an outlet 62 for the guide member 5 to move out, and a guide groove 63 extending between the inlet 61 and the outlet 62. The filter element 2 moves along the axial direction of the first through cavity to drive the turntable 4 to switch between the locked position and the unlocked position through the guide member 5 and the guide groove 63.

[0050] The filter element 2 assembly of the present application includes a waterway plate 1, a filter element 2, a fixed disk 3 and a rotating disk 4. The fixed disk 3 is fixedly connected to the waterway plate 1, and the filter element 2 is connected or disconnected from the fixed disk 3 through the rotating disk 4, thereby realizing the connection or disconnection of the filter element 2 and the waterway plate 1. Among them, the filter element 2 moves along the axial direction of the first through cavity to switch between the locked position and the unlocked position, that is, when the user removes or installs the filter element 2, it is only necessary to drive the filter element 2 to move along the axial direction of the first through cavity in a one-step operation to realize the fixing and disconnection of the filter element 2, without screwing or performing other operations. The process of replacing the filter element 2 is simple and convenient, and the core replacement efficiency is high; moreover, for the large-flux filter element 2, the outer diameter of the large-flux filter element 2 is larger than the diameter of the small-flux filter element 2, and the method of rotating the filter element 2 to disassemble and assemble the filter element 2 is not conducive to the user's one-handed operation of the filter element 2, while the linear push-up method in the present application is convenient and easy, and can be achieved with one-handed operation, which improves the user's core replacement operation. convenience; in addition, since the filter element 2 moves axially along the first through cavity, and the fixed disk 3 with the first through cavity is coaxially arranged with the rotating disk 4 with the second through cavity, the rotating disk 4 and the fixed disk 3 share the space in the movement direction of the filter element 2. Compared with the conventional technology in which a pressing rod for connecting the filter element 2 and the waterway plate 1 is arranged on the side of the filter element 2, the rotating disk 4 in the present application does not occupy the side space of the filter element 2, and visually does not give the user a sense of independence and abruptness, so that the integrity of the filter element 2 assembly is relatively strong, and the rotating disk 4 is sandwiched between the fixed disk 3 and the waterway plate 1, which can better protect the rotating disk 4 and reduce external interference to the rotating disk 4 to a certain extent. When the filter element 2 moves along the axial direction of the first through cavity, the turntable 4 is driven to rotate through the cooperation of the guide member 5 and the guide groove 63, so that the turntable 4 can be switched between the locked position and the unlocked position, eliminating the need for a separate driving member for driving the turntable 4 to rotate, thereby optimizing the structural design of the filter element 2 assembly and contributing to the miniaturization of the filter element 2 assembly.

[0051] The present application does not limit the structural form of the guide groove 63, and it can adopt any one of the following embodiments:

[0052] Embodiment 1: One of the filter element 2 and the turntable 4 is provided with a plurality of guide members 5 at intervals along its own circumference, and the guide rail 6 provided on the other of the two has an inlet 61 and an outlet 62 equal in number to the guide members 5, and a guide groove 63 located between the inlet 61 and connecting the inlet 61 and the outlet 62, and the plurality of guide grooves 63 are not connected to each other.

[0053] Implementation method 2: Figure 2 , Figure 3As shown, one of the filter element 2 and the turntable 4 is provided with a plurality of guide members 5 at intervals along its own circumference, and the guide rail 6 provided on the other of the two has inlets 61 equal to the number of the guide members 5 and guide grooves 63 extending through along its own circumference; the inlet 61 is an inlet 61 for one of the two adjacent guide members 5 to move into the guide groove 63, and an outlet 62 for the other to move out of the guide groove 63, or the outlet 62 is an outlet 62 for one of the two adjacent guide members 5 to move out of the guide groove 63, and an inlet 61 for the other to move into.

[0054] By providing a plurality of guide members 5 and guide grooves 63 adapted thereto, the rotational force of the turntable 4 driven by the movement of the filter element 2 is evenly distributed to the plurality of guide members 5 and guide grooves 63, thereby reducing the force on a single guide member 5 and the guide groove 63, thereby reducing the possibility of stress concentration at the connection between the guide member 5 and the guide groove 63; moreover, compared with the installation method in the first embodiment in which the user needs to insert the guide member 5 from the inlet 61 into the guide groove 63 each time the filter element 2 is installed, the inlet 61 of each guide groove 63 in this embodiment can also serve as the outlet 62 of the guide member 5 adjacent to the adapted guide member 5, so that During the installation of the filter element 2, the user does not need to pay special attention to accurately align the positions of the guide member 5 and the inlet 61. The guide member 5 can be inserted into the guide groove 63 from any inlet 61. Multiple inlets 61 can be used as the entry ports 61 of the guide member 5, which greatly reduces the difficulty of the user in installing the filter element 2 and optimizes the user's experience. Moreover, since each inlet 61 can be used as the outlet 62 of the guide member 5 for the guide member 5 to escape and the guide grooves 63 are interconnected, the continuous pressing and rebounding of the filter element 2 can drive the continuous rotation of the turntable 4, thereby improving the continuity and smoothness of the installation and separation of the filter element 2.

[0055] As a preferred implementation of the present application, Figure 4 As shown, the guide groove 63 is provided with a first slide groove section 631 and a second slide groove section 632 which are interconnected along the opposite direction of the rotation direction of the turntable 4, and a locking groove 633 for locking the guide member 5 is formed at the connecting position of the first slide groove section 631 and the second slide groove section 632; the turntable 4 rotates so that the guide member 5 has a thrust stroke through the first slide groove section 631 and a withdrawal stroke through the second slide groove section 632.

[0056] Along the opposite direction of the rotation of the turntable 4, the guide groove 63 is divided into a first slide groove section 631 and a second slide groove section 632. A locking groove 633 for locking the guide member 5 is formed at the connection position of the first slide groove section 631 and the second slide groove section 632. The design of the first slide groove section 631, the second slide groove section 632 and the locking groove 633 can realize the rapid and accurate movement of the guide member 5 and the precise locking at the locked position, thereby ensuring a rapid and reliable connection between the filter bottle and the waterway plate 1. Moreover, the push stroke is used for installation, and the withdrawal stroke is used for disassembly. Through the guide member 5 with the push stroke and the withdrawal stroke, the user can quickly and conveniently replace the filter element 2 component, thereby improving the convenience of the core replacement operation, helping the user to more easily perform regular maintenance and replace the filter element 2 to ensure the long-term effectiveness of the water purifier.

[0057] As a preferred embodiment of this implementation, Figure 4 , Figure 5 As shown, the first slide groove section 631 includes a first straight segment 6311, a first bent segment 6312 and a second bent segment 6313 connected in sequence, the second slide groove section 632 includes a third bent segment 6322, a fourth bent segment 6323 and a second straight segment 6321 connected in sequence, and the locking groove 633 is formed at the connecting position of the second bent segment 6313 and the third bent segment 6322; the turntable 4 rotates unidirectionally so that the guide member 5 passes through the first slide groove section 631 and the second slide groove section 632 in sequence along a preset direction, and the filter element 2 reciprocates along the axial direction of the first through cavity to achieve locking and disengagement with the turntable 4. The multi-section design of the first slide groove section 631 and the second slide groove section 632 allows the user to only push the filter bottle in a straight line during the installation and disassembly of the filter element 2 assembly, and the filter element 2 assembly can move according to a preset trajectory, that is, the guide member 5 slides along the multi-section structure of the first slide groove section 631 and the second slide groove section 632 to drive the filter bottle to be fed in a straight line, making the operation more convenient, and the entire operation process has relatively low requirements for the operating space, which can reduce the requirements of the filter element 2 assembly and the water purifier in this application for the external use environment.

[0058] As a preferred example under this embodiment, Figure 5As shown, the connection position of the first bending section 6312 and the second bending section 6313 has a first inner inflection point 634 and a first outer inflection point 635, and the first outer inflection point 635 is located at the downstream side of the propulsion stroke compared to the first inner inflection point 634, so that the first inner inflection point 634 and the first outer inflection point 635 are staggered, and the lateral dimension between the first inner inflection point 634 and the first outer inflection point 635 is greater than the radius of the guide member 5 to form a first corner; the connection position of the second bending section 6313 and the third bending section 6322 has a second inner inflection point 636 and a second outer inflection point 637, and the second inner inflection point 636 is located at the downstream side of the propulsion stroke compared to the second outer inflection point 637 The downstream side of the stroke is arranged so that the second inner turning point 636 and the second outer turning point 637 are staggered, and the lateral dimension between the second inner turning point 636 and the second outer turning point 637 is greater than the radius of the guide member 5 to form a second corner; the third bending section 6322 and the fourth bending section 6323 have a third inner turning point 638 and a third outer turning point 639 at the connecting position, and the third inner turning point 638 is located on the upstream side of the exit stroke compared to the third outer turning point 639, so that the third inner turning point 638 and the third outer turning point 639 are staggered, and the lateral dimension between the third inner turning point 638 and the third outer turning point 639 is greater than the radius of the guide member 5 to form a third corner.

[0059] By staggering the first inner turning point 634 and the first outer turning point 635 at the connection position of the first bending section 6312 and the second bending section 6313 to form a first corner with a lateral dimension greater than the radius of the guide member 5, staggering the second inner turning point 636 and the second outer turning point 637 at the connection position of the second bending section 6313 and the third bending section 6322 to form a second corner with a lateral dimension greater than the radius of the guide member 5, and staggering the third inner turning point 638 and the third outer turning point 639 at the connection position of the third bending section 6322 and the fourth bending section 6323 to form a third corner with a lateral dimension greater than the radius of the guide member 5, the guide member 5 can move unidirectionally along the first corner, the second corner and the third corner respectively under the pushing action of the pushing mechanism, thereby preventing the guide member 5 from moving backward after letting go and affecting the smooth installation of the filter element 2. This embodiment can guide the unidirectional movement of the guide member 5 by means of the special structural design of the first guide groove 63 without adding other additional components. The structure is simple and reliable, and the manufacturing cost is low, thereby reducing the production cost.

[0060] As a preferred embodiment of the present application, the waterway plate 1 or the fixed plate 3 is provided with a stabilizing unit, and the stabilizing unit is used to keep the turntable 4 in the locked position or the unlocked position. By providing the stabilizing unit, when the turntable 4 is in the locked position or the unlocked position, the stabilizing unit can stabilize the turntable 4 to prevent the turntable 4 from rotating, so that the guide 5 and the guide rail 6 maintain the same relative position, thereby ensuring that the filter element 2 can be firmly installed on the waterway plate 1 and smoothly removed from the waterway plate 1. In particular, when the turntable 4 is in the unlocked position, the presence of the stabilizing unit can stabilize the turntable 4 in the unlocked position, so that when the filter element 2 to be replaced is inserted along the axial direction of the first through cavity, the filter element 2 can be smoothly inserted to drive the turntable 4 to rotate from the unlocked position to the locked position, instead of the filter element 2 being unable to be inserted due to the blocking effect of the lock groove 633 on the turntable 4 when the filter element 2 is inserted, thereby ensuring the smooth operation of the core replacement.

[0061] As a preferred embodiment of this embodiment, the stabilizing unit includes at least two sets of stabilizing assemblies 7 arranged opposite to each other and located outside the rotating disk 4. The stabilizing assemblies 7 include rolling bodies 71 that abut against the rotating disk 4 to apply rotation resistance to the rotating disk 4, and first elastic members 72 that press the rolling bodies 71 against the outer surface of the rotating disk 4. Specifically, Figure 8 As shown, the disk stabilizing assembly 7 includes a placement groove for placing a rolling body 71, and the rolling body 71 is preferably set to a spherical structure. The first elastic member 72 may preferably include a spring and a fixing member for pressing the spring. The rolling body 71 abuts against the turntable 4. The spring abuts against the rolling body 71 under the pressing action of the fixing member and gives the rolling body 71 an elastic force toward the turntable 4. The turntable 4 is stabilized in a locked position or an unlocked position under the action of the elastic force transmitted by the rolling body 71.

[0062] The present application does not limit the arrangement positions of the guide rail 6 and the guide member 5, and any of the following embodiments may be adopted:

[0063] Embodiment 1: the guide rail 6 is arranged on the filter element 2 , and the guide member 5 is arranged on the turntable 4 .

[0064] Implementation method 2: Figure 2 , Figure 3As shown, the guide rail 6 is arranged on the turntable 4, the guide member 5 is arranged on the filter element 2, the fixed plate 3 is provided with a limiting groove 31 opposite to the inlet 61 and the outlet 62, and the filter element 2 is provided with a limiting rib 21, and the limiting rib 21 is plugged into the limiting groove 31 to limit the rotation of the filter element 2 along the circumference of the first through cavity. By providing a limiting groove 31 on the fixed disk 3 which is opposite to the inlet 61 and the outlet 62 and providing a limiting rib 21 on the filter element 2, on the one hand, the filter element 2 can be guided to move axially along the first through cavity through the cooperation of the limiting rib 21 and the limiting groove 31, thereby preventing the filter element 2 from moving poorly due to the force applied by the operator during installation or removal; on the other hand, since the turntable 4 is clamped between the fixed disk 3 and the waterway plate 1, the fixed disk 3 is bound to block the turntable 4 to a certain extent. When installing the filter element 2, the user can position the filter element 2 by aligning the limiting rib 21 with the limiting groove 31, thereby eliminating the inconvenience of the user observing the positions of the inlet 61 and the outlet 62 on the turntable 4 under the cover of the fixed disk 3, reducing the difficulty of the user in installing the filter element 2, and improving the user's experience.

[0065] Preferably, if Figure 3 , Figure 6 As shown, one of the fixing plate 3 and the waterway plate 1 is provided with a guide groove 32, and the other is provided with a guide rib 12, and the guide rib 12 is inserted into the guide groove 32 to guide the fixing plate 3 to be fixed to the waterway plate 1. By providing the guide groove 32 and the guide rib 12, the fixing plate 3 must ensure that the guide rib 12 can be inserted into the guide groove 32 during the installation process of the fixing plate 3 and the waterway plate 1, that is, the guide groove 32 and the guide rib 12 limit the installation position of the fixing plate 3, so as to ensure that when the filter element 2 is installed, the limiting rib 21 is inserted into the limiting groove 31 to ensure that the guide member 5 can enter the inlet 61, and avoid the occurrence of the phenomenon that the guide member 5 and the inlet 61 are misaligned and cannot be inserted after the limiting rib 21 is inserted into the limiting groove 31 due to the offset of the installation position of the rotating plate 4.

[0066] The present application does not limit the relative movement between the rotating disk 4, the waterway plate 1 and the fixed disk 3, and any one of the following embodiments may be adopted:

[0067] Embodiment 1: One of the waterway plate 1 or the rotating disk 4 is provided with a plurality of first balls 11 along the circumferential direction, and the other one is provided with a first friction surface 41 in contact with the first balls 11 .

[0068] Embodiment 2: One of the fixed disk 3 or the rotating disk 4 is provided with a plurality of second balls (not shown in the figure) along the circumferential direction, and the other one is provided with a second friction surface 42 in contact with the second balls.

[0069] Implementation method three: Figure 7 , Figure 8As shown, one of the waterway plate 1 or the turntable 4 is provided with a plurality of first balls 11 along the circumferential direction, and the other of the two is provided with a first friction surface 41 in contact with the first balls 11; one of the fixed plate 3 or the turntable 4 is provided with a plurality of second balls (not shown in the figure) along the circumferential direction, and the other of the two is provided with a second friction surface 42 in contact with the second balls. Through the rolling cooperation between the first balls 11 and the first friction surface 41 and the rolling cooperation between the second balls and the second friction surface 42, the friction between the waterway plate 1 and the turntable 4, and between the fixed plate 3 and the turntable 4 is rolling friction. Compared with other force modes such as sliding friction, the rolling friction makes the friction force of the turntable 4 smaller when it rotates relative to the waterway plate 1 or the fixed plate 3. The user only needs to apply a small force to drive the turntable 4 to rotate, thereby more easily driving the turntable 4 to switch between the locked position and the unlocked position. Preferably, as Figure 8 As shown, an upper rotating groove 43 is circumferentially arranged on the top of the rotating disk 4, a lower rotating groove 44 is circumferentially arranged on the bottom of the rotating disk 4, a first convex edge 13 adapted to the lower rotating groove 44 is circumferentially arranged on the top of the waterway plate 1, a second convex edge 33 adapted to the upper rotating groove 43 is circumferentially arranged on the bottom of the fixed disk 3, a plurality of first balls 11 are arranged between the lower rotating groove 44 and the first convex edge 13, and a plurality of second balls are arranged between the upper rotating groove 43 and the second convex edge 33. The upper rotating groove 43 and the lower rotating groove 44 can cooperate with the first convex edge 13 and the second convex edge 33 to guide the rotating disk 4 to rotate along a preset track, prevent the rotating disk 4 from being offset during the movement, thereby causing poor core replacement, and provide a placement position for the first ball 11 and the second ball, further integrate the functions, and optimize the structural design of the filter element 2 assembly.

[0070] Embodiment 4: The first ball bearings 11 described in Embodiment 1 are not provided between the rotating disk 4 and the waterway plate 1; the second ball bearings described in Embodiment 2 are not provided between the rotating disk 4 and the fixed disk 3. In this embodiment 4, sliding friction occurs between the rotating disk 4 and the waterway plate 1, and between the rotating disk 4 and the fixed disk 3 when relative rotation occurs.

[0071] As a preferred implementation of the present application, Figure 7As shown, the waterway plate 1 is provided with an ejection mechanism 8 for driving the filter element 2 to move along the axial direction of the first through cavity to achieve rebound. The ejection mechanism 8 includes a second elastic member 81 and a push rod 82 linked to the second elastic member 81. The filter element 2 is provided with an abutment plane that can abut against the push rod 82. The ejection mechanism 8 can play an auxiliary role in the installation or removal process of the filter element 2. When installing the filter element 2, the user presses the filter element 2 axially along the first through cavity. After the filter element 2 is released, the filter element 2 can be driven to move by the ejector rod 82 under the elastic force of the second elastic member 81, so that the turntable 4 reaches the locked position under the cooperation of the guide member 5 and the guide groove 63; when removing the filter element 2, the user presses the filter element 2 axially along the first through cavity. After the filter element 2 is released, the filter element 2 can be driven to move by the ejector rod 82 under the elastic force of the second elastic member 81, so that the turntable 4 reaches the unlocked position under the cooperation of the guide member 5 and the guide groove 63; that is, by setting the ejection mechanism 8, the user only needs to apply force to the filter element 2 in one direction to achieve the installation and unlocking of the filter element 2 without changing the force application direction during the installation and removal of the filter element 2, so that the disassembly and assembly process of the filter element 2 is further simplified, greatly improving the user experience. Preferably, the second elastic member 81 can be set as a spring.

[0072] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0073] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0074] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A filter element assembly for convenient core replacement, comprising a waterway plate and a filter element, wherein the waterway plate is provided with a first water inlet, and the filter element is provided with a second water inlet connected to the first water inlet, characterized in that: Also includes: A fixed plate, the fixed plate is fixedly connected to the waterway plate, and the fixed plate is provided with a first through cavity; A rotating disk, wherein the rotating disk is provided with a second through cavity coaxial with the first through cavity, the rotating disk is clamped between the fixed disk and the waterway plate, and the rotating disk rotates relative to the fixed disk to have a locking position for locking the filter element and an unlocking position for releasing the filter element; One of the filter element and the turntable is provided with a guide member, and the other is provided with a guide rail adapted to the guide member, the guide rail having an inlet for the guide member to move in, an outlet for the guide member to move out, and a guide groove extending between the inlet and the outlet, the filter element moves along the axial direction of the first through cavity to drive the turntable to switch between the locked position and the unlocked position through the guide member and the guide groove.

2. A filter element assembly for convenient core replacement according to claim 1, characterized in that: One of the filter element and the turntable is provided with a plurality of the guide members at intervals along its own circumference, and the guide rail provided on the other of the two has inlets equal to the number of the guide members and a guide groove extending through along its own circumference; the inlet is an inlet for one of the two adjacent guide members to move into the guide groove, and an outlet for the other to move out of the guide groove, or the outlet is an outlet for one of the two adjacent guide members to move out of the guide groove, and an inlet for the other to move into.

3. The filter element assembly for convenient core replacement according to claim 1, characterized in that: The guide groove is provided with a first slide groove section and a second slide groove section which are connected to each other along the direction opposite to the rotation direction of the turntable, and a locking groove for locking the guide member is formed at the connecting position of the first slide groove section and the second slide groove section; the turntable rotates so that the guide member has an advancement stroke through the first slide groove section and an exit stroke through the second slide groove section.

4. A filter element assembly for convenient core replacement according to claim 3, characterized in that: The first slide groove section includes a first straight segment, a first bent segment and a second bent segment connected in sequence, the second slide groove section includes a third bent segment, a fourth bent segment and a second straight segment connected in sequence, and the locking groove is formed at the connection position of the second bent segment and the third bent segment; The turntable rotates unidirectionally to allow the guide member to sequentially pass through the first slide groove section and the second slide groove section along a preset direction, and the filter element reciprocates along the axial direction of the first through cavity to achieve locking and disengagement with the turntable.

5. The filter element assembly for convenient core replacement according to claim 4, characterized in that: A first inner inflection point and a first outer inflection point are provided at the connection position of the first bending section and the second bending section, and the first outer inflection point is located at the downstream side of the propulsion stroke compared with the first inner inflection point, so that the first inner inflection point and the first outer inflection point are staggered, and the transverse dimension between the first inner inflection point and the first outer inflection point is greater than the radius of the guide member to form a first corner; A second inner inflection point and a second outer inflection point are provided at a connection position between the second bending section and the third bending section, the second inner inflection point being located at a downstream side of the propulsion stroke compared to the second outer inflection point, so that the second inner inflection point and the second outer inflection point are staggered, and a transverse dimension between the second inner inflection point and the second outer inflection point is greater than a radius of the guide member to form a second corner; A third inner turning point and a third outer turning point are provided at the connection position of the third bending section and the fourth bending section. The third inner turning point is located on the upstream side of the exit stroke compared to the third outer turning point, so that the third inner turning point and the third outer turning point are staggered, and the lateral dimension between the third inner turning point and the third outer turning point is greater than the radius of the guide member to form a third corner.

6. The filter element assembly for convenient core replacement according to claim 1, characterized in that: The waterway plate or the fixed plate is provided with a plate stabilizing unit, and the plate stabilizing unit is used to keep the rotating plate at the locking position or the unlocking position.

7. The filter element assembly for convenient core replacement according to claim 6, characterized in that: The disk stabilizing unit includes at least two sets of disk stabilizing components arranged opposite to each other outside the turntable, and the disk stabilizing components include rolling bodies that abut against the turntable to apply rotational resistance to the turntable, and a first elastic member that presses the rolling bodies against the outer surface of the turntable.

8. A filter element assembly for convenient core replacement according to any one of claims 1 to 7, characterized in that: The guide rail is arranged on the turntable, the guide member is arranged on the filter element, the fixed plate is provided with a limiting groove opposite to the inlet and the outlet positions, the filter element is provided with a limiting rib, and the limiting rib is plugged into the limiting groove to limit the rotation of the filter element along the circumference of the first through cavity.

9. A filter element assembly for convenient core replacement according to any one of claims 1 to 7, characterized in that: One of the waterway plate or the rotating disk is provided with a plurality of first balls along the circumferential direction, and the other is provided with a first friction surface in contact with the first balls; and / or, One of the fixed disk or the rotating disk is provided with a plurality of second balls along the circumferential direction, and the other of the fixed disk or the rotating disk is provided with a second friction surface in contact with the second balls.

10. A filter element assembly for convenient core replacement according to any one of claims 1 to 7, characterized in that: The waterway plate is provided with an ejection mechanism for driving the filter element to move along the axial direction of the first through cavity to achieve rebound, the ejection mechanism includes a second elastic member and a push rod linked to the second elastic member, and the filter element is provided with an abutment plane that can abut against the push rod.

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