Filter element device and water purifier

Abstract

The utility model is suitable for water purification equipment technical field discloses a filter core device and water purifier. Among them, filter core device includes filter core main part, filter core main part is provided with filter core water flow interface in first direction, filter core water flow interface is used for connecting host computer water flow interface of filter host computer, filter core main part has the connecting portion for the filter host computer's clamping part clamping connection. Filter core device still includes locking part, locking part includes locking piece for making clamping part can keep in locking state, locking piece sets up in connecting portion or sets up close to connecting portion. The filter core device provided by the application can avoid the filter core device from separating from the filter host computer by setting the locking piece, and the installation firmness of the filter core device is improved.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a filter cartridge device and a water purifier. Background Technology

[0002] As people's living standards improve, their requirements for water quality are also increasing, leading to the widespread use of water purification equipment. The filter cartridge is the core component of this equipment and needs to be replaced regularly. In some technologies, the filter cartridge is secured with clamps; however, in certain situations, such as when the clamps are not properly engaged, they may come loose, causing the filter cartridge to detach and resulting in a poor user experience. Utility Model Content

[0003] This application provides a filter cartridge device and a water purifier, aiming to solve the technical problems of filter cartridge devices being not securely installed and easily falling off.

[0004] According to a first aspect of this application, one embodiment provides a filter element device, including a filter element body, the filter element body having a filter element water flow interface in a first direction, the filter element water flow interface being used to connect to the host water flow interface of a filter host, and the filter element body having a connecting portion for snap-fit ​​connection by a snap-fit ​​component of the filter host;

[0005] The filter element device further includes a locking component, which includes a locking member for keeping the snap-fit ​​component in a locked state. The locking member is disposed on or near the connecting portion.

[0006] In one embodiment, the locking element is a movable snap-fit ​​or a fixed snap-fit ​​structure.

[0007] In one embodiment, the locking member is a movable snap-fit, having a locked state and a yielding state;

[0008] When the locking member is in the locked state, it can keep the latching member in the locked state; when the locking member is in the yielding state, the latching member can move in the direction of releasing the lock on the filter element body.

[0009] In one embodiment, the filter element body has a receiving cavity and a first opening communicating with the receiving cavity, the first opening being disposed in the filter element body along a second direction;

[0010] The locking member is slidably connected to the receiving cavity along the second direction; when the locking member is in the locked state, at least a portion of the locking member extends out of the outer periphery of the filter body from the first opening to restrict the movement of the snap-fit ​​component in the unlocking direction; when the locking member is in the avoidance state, the locking member slides into the receiving cavity to release the restriction on the movement of the snap-fit ​​component in the unlocking direction.

[0011] In one embodiment, the locking component further includes a locking control component connected to the locking member, and the filter element body is further provided with a second opening communicating with the receiving cavity;

[0012] The locking control is slidably disposed in the receiving cavity and partially extends out of the second opening to protrude from the outer periphery or end of the filter element body. The locking control can be used by the user to switch the locking member from the locked state to the avoidance state.

[0013] In one embodiment, the second opening is disposed on the filter element body along the second direction and is adjacent to the first opening along the third direction;

[0014] A portion of the locking control extends out of the second opening, protruding from the outer periphery of the filter element body, and is spaced apart from the locking member in the third direction. The locking control is used by the user to press and drive the locking member to switch to the avoidance state, and the third direction is perpendicular to the second direction.

[0015] In one embodiment, the portion of the locking member extending out of the receiving cavity is provided with a guide surface, and when the snap-fit ​​component moves in the locking direction, it acts on the guide surface to cause the locking member to slide in the direction of the avoidance state;

[0016] Alternatively, the locking control element may be provided to protrude from the locking element in the second direction;

[0017] Alternatively, the locking control and the locking element are integrally formed.

[0018] In one embodiment, the locking component further includes a first elastic element, one end of which is connected to the locking control element and the other end of which is connected to the receiving cavity.

[0019] In one embodiment, the filter element body has a first cavity wall disposed toward the receiving cavity, the first cavity wall being disposed opposite to the second opening and having a limiting groove formed therein, and the end of the first elastic member away from the locking control member being limited within the limiting groove.

[0020] In one embodiment, the end of the filter element body is provided with a third opening that communicates with the receiving cavity in a third direction, and the third opening is used for the locking component to be inserted into the receiving cavity;

[0021] The filter element device further includes a cap connected to the third opening for sealing the third opening, wherein the third direction is perpendicular to the first direction and the second direction.

[0022] In one embodiment, the filter element body includes a filter assembly and a filter element connector connected to one end of the filter assembly.

[0023] The connecting part is disposed on the filter element connector, and the locking component is installed on the filter element connector.

[0024] In one embodiment, the locking component is provided, and the locking component and the filter element water flow interface are respectively provided on opposite sides of the filter element body;

[0025] Alternatively, two locking components may be provided, and the two locking components may be symmetrically arranged circumferentially along the filter element body.

[0026] In one embodiment, the connecting portion has a first side, a second side, a third side, and a fourth side; the first side, the second side, the third side, and the fourth side surround the outer periphery of the connecting portion; the first side and the third side are arranged facing each other; the filter element water flow interface is disposed on the first side; one locking member is disposed on the third side, or two locking members are disposed on the second side and the fourth side, respectively;

[0027] When the latching component is in the locked state, the inner side of the latching component is attached to the second side, the third side, and the fourth side.

[0028] In one embodiment, the second side and the fourth side are both planar and arranged facing each other and parallel, and the third side is planar or arc-shaped;

[0029] The distance between the second side and the fourth side is greater than or equal to 66 mm; and / or the height of the connecting portion is greater than or equal to 10 mm.

[0030] In one embodiment, the connecting portion is disposed at the end of the filter element body and also has a limiting structure, which is used to limit the snap-fit ​​component.

[0031] In one embodiment, the limiting structure is a slot; the slot has a first slot, a second slot and a third slot, the first slot is opened on the second side, the second slot is opened on the fourth side, and the third slot connects the first slot and the second slot and is opened on the end face of the connecting part;

[0032] When the snap-fit ​​component is in the locked state, the slot is used for the snap-fit ​​component's snap-fit ​​strip to be inserted and connected.

[0033] In one embodiment, the distance from the side of the slot near the filter cartridge water flow interface to the end of the filter cartridge water flow interface away from the connection part is greater than or equal to 15mm and less than or equal to 90mm.

[0034] In one embodiment, groove structures are provided on opposite sides of the connecting portion, the groove structures being used to accommodate the snap-fit ​​component.

[0035] According to a second aspect of this application, one embodiment provides a water purifier, including a filter host for connecting to the filter cartridge device of the first aspect described above. The filter host has a host water flow interface for docking with the filter cartridge water flow interface. The filter host also has a snap-fit ​​component for snapping the connection portion to prevent the filter cartridge water flow interface from becoming detached from the host water flow interface.

[0036] In one embodiment, the snap-fit ​​component is fitted over the outside of the connecting portion;

[0037] And / or, the end face of the connecting portion has a slot and the snap-fit ​​component is at least partially engaged in the slot of the connecting portion.

[0038] In one embodiment, the filter host further includes a mounting component, and the snap-fit ​​component is rotatably or slidably connected to the mounting component. The snap-fit ​​component has a locked state that can be rotated or slidably snapped into the connecting portion, and the snap-fit ​​component also has an unlocked state that can be reset to disengaged from the connecting portion.

[0039] In one embodiment, a second elastic member is provided between the mounting component and the snap-fit ​​component, the second elastic member being used to keep the snap-fit ​​component rotating in the direction of the unlocked state.

[0040] In one embodiment, the host water flow interface is connected to the mounting component, and the mounting component includes a first connecting seat and a second connecting seat, which are respectively disposed on both sides of the host water flow interface;

[0041] The snap-fit ​​component is arc-shaped or U-shaped, and its two sides are rotatably connected to the first connecting seat and the second connecting seat, respectively.

[0042] In one embodiment, the first connector is provided with a first connecting hole, and the second connector is provided with a second connecting hole; the two sides of the snap-fit ​​component are respectively provided with a first connecting shaft and a second connecting shaft, the first connecting shaft being connected to the first connecting hole, and the second connecting shaft being connected to the second connecting hole;

[0043] There are two second elastic elements, one of which is connected between the first connecting shaft and the first connecting seat, and the other of which is connected between the second connecting shaft and the second connecting seat.

[0044] In one embodiment, the snap-fit ​​component includes a first snap-fit ​​wall, a second snap-fit ​​wall, and a third snap-fit ​​wall, wherein the first snap-fit ​​wall and the second snap-fit ​​wall are disposed facing each other, and the third snap-fit ​​wall is connected between the first snap-fit ​​wall and the second snap-fit ​​wall;

[0045] When the latching component is in the locked state, the inner sides of the first latching wall, the second latching wall, and the third latching wall are all used to fit against the connecting part.

[0046] In one embodiment, the snap-fit ​​component further includes a snap-fit ​​strip, which is connected between the first snap-fit ​​wall and the second snap-fit ​​wall;

[0047] When the locking component is in the locked state, the locking strip is used to lock into the slot of the connecting part.

[0048] In one embodiment, the filter element body is cylindrical and has a first end and a second end disposed opposite to each other in a third direction. The filter host has a support portion for supporting the first end of the filter element body, and the connecting portion is disposed at the second end of the filter element body.

[0049] According to the filter cartridge device and water purifier of the above embodiments, by connecting the filter cartridge water flow interface to the main unit water flow interface of the filter host, raw water can flow from the filter host into the filter cartridge body, be filtered by the filter cartridge body, and then flow back to the filter host. By providing a locking component, when the filter cartridge device is installed on the filter host, the locking component can keep the locking component in a locked state, thereby preventing the filter cartridge device from detaching from the filter host and improving the installation firmness of the filter cartridge device. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0051] Figure 1 This is a schematic diagram of the assembly structure of the filter element device and filter host provided in this embodiment of the utility model when the snap-fit ​​component is in the locked state;

[0052] Figure 2 This is an exploded view of the filter element device and filter host provided in the embodiment of this utility model;

[0053] Figure 3 This is a schematic diagram of the structure of the first type of filter device provided in this embodiment of the utility model;

[0054] Figure 4a and Figure 4b This is a structural schematic diagram of the filter element device provided in this embodiment of the present invention, showing a view of the filter assembly.

[0055] Figure 5 This is a schematic diagram of the filter element device provided in this embodiment of the present invention, showing another perspective of the filter assembly.

[0056] Figure 6 This is an exploded view of the filter element removal component provided in the embodiment of this utility model;

[0057] Figure 7 This is a schematic diagram of the assembly structure of the filter element connector and the filter element water flow interface provided in this embodiment of the utility model;

[0058] Figure 8 This is a schematic diagram of the assembly structure of the locking component and the locking control component provided in this embodiment of the utility model;

[0059] Figure 9 This is a top view of the second type of filter element device provided in this embodiment of the present utility model;

[0060] Figure 10 This is an exploded view of the snap-fit ​​component and the mounting component provided in the embodiment of this utility model;

[0061] Figure 11 This is a schematic diagram of the assembly structure of the filter element device and filter host provided in this embodiment of the utility model when the snap-fit ​​component is in the unlocked state;

[0062] Figure 12 This is a top view of the assembly of another filter element connector and filter element water flow interface provided in this utility model embodiment.

[0063] Explanation of icon numbers:

[0064] 10. Filter cartridge assembly; 11. Filter component; 12. Filter cartridge connector; 121. Connecting part; 1211. First side; 1212. Second side; 1213. Third side; 1214. Fourth side; 122. Receiving cavity; 123. First opening; 124. Second opening; 125. First cavity wall; 126. Limiting groove; 127. Third opening; 128. Slot; 1281. First groove; 1282. Second groove; 1283. Third groove; 129. Grooved structure; 13. Filter cartridge water flow interface; 14. Locking component; 141. Locking element; 1411. Guide surface ; 142. Locking control component; 143. First elastic element; 15. Cover; 151. Cover body; 152. Extension; 161. First end; 162. Second end; 20. Filter host; 21. Main unit water flow interface; 22. Snap-fit ​​component; 221. First snap-fit ​​wall; 222. Second snap-fit ​​wall; 223. Third snap-fit ​​wall; 224. Snap-fit ​​strip; 23. Mounting component; 231. First connecting seat; 2311. First connecting hole; 232. Second connecting seat; 2321. Second connecting hole; 24. Second elastic element; 251. First connecting shaft; 252. Second connecting shaft; 26. Support part.

[0065] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0066] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0067] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0068] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0069] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0070] like Figures 1 to 6 As shown, the filter element device 10 provided in this embodiment of the present invention includes a filter element body. The filter element body is provided with a filter element water flow interface 13 in the first direction X. The filter element water flow interface 13 is used to connect to the host water flow interface 21 of the filter host 20. The filter element body has a connecting portion 121 for the snap-fit ​​component 22 of the filter host 20 to snap into place. The filter element device 10 also includes a locking component 14, which includes a locking member 141 for keeping the snap-fit ​​component 22 in a locked state. The locking member 141 is disposed on or near the connecting portion 121. Wherein, the first direction X is the radial direction of the filter element body, that is, the direction perpendicular to the axial direction of the filter element body.

[0071] By adopting the above technical solution, and connecting the filter element water flow interface 13 to the main unit water flow interface 21 of the filter host 20, raw water can flow from the filter host 20 into the filter element body, be filtered by the filter element body, and then flow back to the filter host 20. By providing the locking component 14, when the filter element device 10 is installed on the filter host 20, the locking component 14 can keep the locking component 22 in a locked state, thereby preventing the filter element device 10 from detaching from the filter host 20 and improving the installation stability of the filter element device 10.

[0072] In one embodiment, the locking member 141 is a movable snap-fit ​​or a fixed snap-fit ​​structure. When the locking member 141 is a movable snap-fit, it has a locked state and a yielding state. When the locking member 141 is in the locked state, it can keep the engaging member 22 in the locked state; when the locking member 141 is in the yielding state, the engaging member 22 can move in the direction of releasing the lock on the filter element body. When the locking member 141 is a fixed snap-fit ​​structure, the engaging member 22 needs to pass over the snap-fit ​​structure when switching between the locked state and the unlocked state. In specific applications, the fixed snap-fit ​​structure can be made of a soft material, such as silicone, and the snap-fit ​​structure can deform when the engaging member 22 passes over the snap-fit ​​structure; or the fixed snap-fit ​​structure can also be made of a hard material, and the two are pressed against each other when the engaging member 22 passes over the snap-fit ​​structure. In this embodiment, the locking member 141 is a movable snap-fit.

[0073] Please see Figure 2 , Figure 6 and Figure 7 The filter element body has a receiving cavity 122 and a first opening 123 communicating with the receiving cavity 122. The first opening 123 is disposed in the filter element body along the second direction Y. A locking member 141 is slidably connected to the receiving cavity 122 along the second direction Y. When the locking member 141 is in the locked state, at least a portion of the locking member 141 extends out of the outer periphery of the filter element body from the first opening 123 to restrict the movement of the locking member 22 in the unlocking direction. When the locking member 141 is in the avoidance state, the locking member 141 slides into the receiving cavity 122 to release the restriction on the movement of the locking member 22 in the unlocking direction. By setting the locking member 141 to slide in the receiving cavity 122, when the locking member 141 is in the avoidance state, at least a portion of the locking member 141 can retract into the receiving cavity 122, thereby reducing the size of the filter element device 10 in the second direction Y, which helps to reduce the space occupied by the filter element device 10. In this embodiment, both the receiving cavity 122 and the first opening 123 are disposed in the connecting portion 121.

[0074] In this embodiment, the second direction Y is also the radial direction of the filter element body, and the angle between the second direction Y and the first direction X is greater than 0° and less than or equal to 180°. In this embodiment, the angle between the second direction Y and the first direction X is equal to 180°, that is, the second direction Y is the opposite direction of the first direction X.

[0075] Please see Figure 6 and Figure 7 The locking component 14 also includes a locking control component 142 connected to the locking component 141. The filter element body also has a second opening 124 communicating with the receiving cavity 122. The locking control component 142 is slidably disposed in the receiving cavity 122 and partially extends out of the second opening 124 to protrude from the outer periphery or end of the filter element body. The locking control component 142 can be used by the user to switch the locking component 141 from the locked state to the avoidance state. By setting the locking control component 142, the locking component 141 can be switched to the avoidance state by the locking control component 142. It should be noted that the user can use different operating methods to operate the locking control component 142 according to different settings, such as pressing or pulling the locking control component 142 in the axial direction of the second opening 124, or sliding the locking control component 142 in the radial direction of the second opening 124.

[0076] In one embodiment, the second opening 124 is disposed on the filter element body along the second direction Y and is adjacent to the first opening 123 along the third direction Z. A portion of the locking control member 142 extends out of the second opening 124, protruding from the outer periphery of the filter element body, and is spaced apart from the locking member 141 along the third direction Z. The locking control member 142 is used by the user to press and cause the locking member 141 to switch to an avoidance state. The third direction Z is perpendicular to the second direction Y. In specific applications, when the locking control member 142 is pressed along the axial direction of the second opening 124, the locking control member 142 slides into the receiving cavity 122, causing the locking member 141 to slide into the receiving cavity 122, thereby switching the locking member 141 to the avoidance state.

[0077] In another embodiment, the second opening 124 may also be disposed on the filter element body in a direction opposite to the second direction Y, and a portion of the locking control member 142 extends out of the second opening 124, protruding from the outer periphery of the filter element body. When this technical solution is adopted, the locking control member 142 and the locking member 141 are respectively disposed on opposite sides of the filter element body. In specific applications, the locking member 141 can be switched to an avoidance state by pulling the locking control member 142 along the axial direction of the second opening 124.

[0078] In another embodiment, the second opening 124 may also be disposed at the end of the filter element body along the third direction Z, and the locking control member 142 may partially extend out of the second opening 124, protruding from the end of the filter element body. When this technical solution is adopted, the locking member 141 can be switched to the avoidance state by sliding the locking control member 142 along the radial direction of the second opening 124.

[0079] Please see Figure 1 , Figures 6 to 8 The portion of the locking member 141 extending out of the receiving cavity 122 is provided with a guide surface 1411. When the engaging member 22 moves in the locking direction, it acts on the guide surface 1411 to cause the locking member 141 to slide in the avoidance direction. This arrangement guides the engaging member 22, reducing damage and extending its service life. The guide surface 1411 can be a chamfered or curved surface, meaning that a chamfer or rounded corner is formed on the portion of the locking member 141 extending out of the receiving cavity 122.

[0080] In one embodiment, the locking control 142 protrudes from the locking member 141 in the second direction Y. This arrangement allows the user to easily press the locking control 142, and also ensures that the locking member 141 is already in a avoidance state while the locking control 142 is still protruding from the outer periphery of the filter element body, thus reducing the pressing stroke of the locking control 142.

[0081] In one embodiment, the locking control 142 and the locking member 141 are integrally formed. This improves the connection strength between the locking control 142 and the locking member 141. Of course, in other embodiments, the locking control 142 and the locking member 141 can also be manufactured separately and then assembled.

[0082] Please see Figure 6 and Figure 7 The locking component 14 also includes a first elastic element 143, one end of which is connected to the locking control element 142 and the other end is connected to the receiving cavity 122. The first elastic element 143 is compressed when the engaging component 22 is held in the locked state, and is further compressed when the locking control element 142 drives the locking component 141 to switch from the locked state to the yielding state. When the locking control element 142 drives the locking component 141 to switch from the yielding state to the locked state, the first elastic element 143 can provide elastic force to the locking control element 142 to drive the locking control element 141 to switch to the locked state. In this way, the locking control element 142 controls the locking component 141 to switch between the locked state and the yielding state. In specific applications, the first elastic element 143 can be a spring or an elastic sheet.

[0083] Please see Figure 6 and Figure 7 The filter element body has a first cavity wall 125 facing the receiving cavity 122. The first cavity wall 125 is opposite to the second opening 124 and has a limiting groove 126. One end of the first elastic member 143 away from the locking control member 142 is limited within the limiting groove 126. By providing the limiting groove 126, the stability of the first elastic member 143 in the receiving cavity 122 is improved. Of course, in other embodiments, the first cavity wall 125 may not have a limiting groove 126. When adopting this technical solution, one end of the first elastic member 143 away from the locking control member 142 can be fixedly connected to the first cavity wall 125.

[0084] Please see Figure 6 and Figure 7 The filter element body has a third opening 127 at its end, which connects to the receiving cavity 122 along a third direction Z. The third opening 127 is used for the locking component 14 to be inserted into the receiving cavity 122. This facilitates the assembly of the locking component 14. The third direction Z is perpendicular to the first direction X and the second direction Y. Of course, in other embodiments, the third direction Z may also be set at an angle of less than 90° with the first direction X and the second direction Y.

[0085] Please see Figure 3 and Figure 7 The filter element device 10 also includes a cover 15, which is connected to the third opening 127 to seal the third opening 127. This prevents dust and other impurities from entering the receiving cavity 122.

[0086] In one embodiment, the cover 15 includes a cover portion 151 and an extension 152. The cover portion 151 seals at the third opening 127, and the extension 152 extends into the receiving cavity 122 adjacent to the first elastic member 143. The extension 152 can be used to prevent the first elastic member 143 from arching toward the third opening 127.

[0087] Please see Figure 3 and Figure 4a The filter element body includes a filter assembly 11 and a filter element connector 12 connected to one end of the filter assembly 11. A connecting portion 121 is disposed on the filter element connector 12, and a locking component 14 is installed on the filter element connector 12. It can be understood that in other embodiments, the connecting portion 121 may also be disposed on the filter assembly 11, and the locking component 14 may also be installed on the filter assembly 11.

[0088] In one embodiment, please refer to Figure 3 A locking component 14 is provided, and the locking component 14 and the filter element water flow interface 13 are respectively disposed on opposite sides of the filter element body. It can be understood that in other embodiments, the locking component 14 and the filter element water flow interface 13 may not be disposed opposite each other.

[0089] In another embodiment, please refer to Figure 9 Two locking components 14 are provided, and the two locking components 14 are symmetrically arranged along the circumference of the filter element body. In this way, on the one hand, the locking component 22 can be evenly locked, and on the other hand, it is convenient for the operator to operate the locking components 14 with two fingers.

[0090] Please see Figures 1 to 4a This application also provides a water purifier, including a filter host 20 for connecting the aforementioned filter cartridge device 10. The filter host 20 has a host water flow interface 21 for docking with the filter cartridge water flow interface 13. The filter host 20 also has a snap-fit ​​component 22 for snapping the filter cartridge device 10 into the connecting portion 121 to prevent the filter cartridge water flow interface 13 from detaching from the host water flow interface 21. By using the aforementioned filter cartridge device 10, when the snap-fit ​​component 22 of the filter host 20 is snapped into the connecting portion 121, the locking component 14 can keep the snap-fit ​​component 22 in a locked state, preventing the filter cartridge device 10 from detaching from the filter host 20. In one embodiment, the snap-fit ​​component 22 is sleeved on the outside of the connecting portion 121, and / or the end face of the connecting portion 121 has a groove 128 and the snap-fit ​​component 22 is at least partially snapped into the groove 128 of the connecting portion 121.

[0091] Please see Figures 1 to 4a , Figure 11The filter unit 20 also has a mounting component 23, and a snap-fit ​​component 22 is rotatably or slidably connected to the mounting component 23. The snap-fit ​​component 22 has a locked state that can be rotated or slidably snapped into the connecting part 121, and also has an unlocked state that can be reset to disengaged from the connecting part 121. In specific applications, when the snap-fit ​​component 22 is in the locked state, the filter element device 10 cannot be separated from the filter unit 20; when the snap-fit ​​component 22 is in the unlocked state, the filter element device 10 can be detached from the filter unit 20.

[0092] Please see Figure 2 and Figure 5 A second elastic member 24 is provided between the mounting component 23 and the locking component 22. The second elastic member 24 is used to keep the locking component 22 rotating in the direction of the unlocked state. In specific applications, when the locking component 22 is engaged with the connecting part 121 and the locking member 141 is in the locked state, the locking component 22 remains in the locked state; when the locking member 141 is in the avoidance state, the second elastic member 24 causes the locking component 22 to rotate in the direction of the unlocked state, thereby making the locking component 22 in the unlocked state.

[0093] Please see Figure 4a and Figure 10 The main unit water flow interface 21 is connected to the mounting component 23. The mounting component 23 includes a first connecting seat 231 and a second connecting seat 232, which are respectively disposed on both sides of the main unit water flow interface 21. The snap-fit ​​component 22 is arc-shaped or U-shaped, and its two sides are rotatably connected to the first connecting seat 231 and the second connecting seat 232, respectively. In this way, the connection between the main unit water flow interface 21 and the filter element water flow interface 13 does not affect the snap-fit ​​component 22 being snapped into the connecting part 121.

[0094] In one embodiment, the first connecting seat 231 is provided with a first connecting hole 2311, and the second connecting seat 232 is provided with a second connecting hole 2321; the two sides of the snap-fit ​​component 22 are respectively provided with a first connecting shaft 251 and a second connecting shaft 252, the first connecting shaft 251 being connected to the first connecting hole 2311, and the second connecting shaft 252 being connected to the second connecting hole 2321. Two second elastic members 24 are provided, one connecting the first connecting shaft 251 and the first connecting seat 231, and the other connecting the second connecting shaft 252 and the second connecting seat 232. The structure is simple and easy to assemble.

[0095] Please see Figure 2 , Figure 4a and Figure 5The connecting portion 121 has a first side 1211, a second side 1212, a third side 1213, and a fourth side 1214, which surround the outer periphery of the connecting portion 121. The first side 1211 and the third side 1213 are arranged facing each other. The filter element water flow interface 13 is located on the first side 1211. One locking member 14 is provided and located on the third side 1213, or two locking members 14 are provided and located on the second side 1212 and the fourth side 1214 respectively. The second side 1212 and the fourth side 1214 are both planar and arranged facing each other and parallel, while the third side 1213 is planar or arc-shaped. When the snap-fit ​​member 22 is in the locked state, the inner side of the snap-fit ​​member 22 is fitted against the second side 1212, the third side 1213, and the fourth side 1214. By setting the second side 1212 and the fourth side 1214 to be planar, the filter element device 10 can be prevented from rotating around the axial direction when the snap-fit ​​component 22 is snapped into the connecting part 121.

[0096] In one embodiment, please refer to Figure 4b The second side 1212 and the fourth side 1214 are both planar and arranged facing each other and parallel to each other. The third side 1213 is planar or arc-shaped. The distance L1 between the second side 1212 and the fourth side 1214 is greater than or equal to 66 mm; and / or, the height H of the connecting part 121 is greater than or equal to 10 mm. This facilitates the design of the flow channel to ensure that the water can flow smoothly in the flow channel.

[0097] Please see Figure 4a , Figure 5 and Figure 10 The latching component 22 includes a first latching wall 221, a second latching wall 222, and a third latching wall 223. The first latching wall 221 and the second latching wall 222 are arranged facing each other, and the third latching wall 223 is connected between the first latching wall 221 and the second latching wall 222. When the latching component 22 is in the locked state, the inner sides of the first latching wall 221, the second latching wall 222, and the third latching wall 223 are all used to abut against the connecting portion 121. In specific applications, the first connecting shaft 251 and the second connecting shaft 252 are respectively connected to one end of the first latching wall 221 and the second latching wall 222, and the third latching wall 223 is connected to the other end of the first latching wall 221 and the second latching wall 222. When the latching component 22 is in the locked state, the inner side of the first latching wall 221 abuts against the second side 1212, the inner side of the second latching wall 222 abuts against the fourth side 1214, and the inner side of the third latching wall 223 abuts against the third side 1213.

[0098] In this embodiment, both the first opening 123 and the second opening 124 are located on the third side surface 1213, and both the locking member 141 and the locking control member 142 can slide radially out of the third side surface 1213. When the engaging member 22 is in the locked state and the locking member 141 is in the locked state, both the locking member 141 and the locking control member 142 protrude out of the third side surface 1213 and are located on both sides of the third locking wall 223 axially. It can be understood that in other embodiments, a groove can also be provided on the inner side of the third locking wall 223, so that when the engaging member 22 is in the locked state and the locking member 141 is in the locked state, the locking member 141 can extend into the groove.

[0099] Please see Figure 5 and Figure 10 The snap-fit ​​component 22 also includes a snap-fit ​​strip 224, which connects the first snap-fit ​​wall 221 and the second snap-fit ​​wall 222. The connecting part 121 is disposed at the end of the filter element body and also has a limiting structure. The limiting structure is used to limit the snap-fit ​​component 22, which can prevent the snap-fit ​​component 22 from being over-fitted and facilitates better positioning of the snap-fit ​​component 22.

[0100] In one embodiment, the limiting structure is a slot 128 or a limiting protrusion. The limiting protrusion can be a bump or a strip, which can limit the movement by contacting the slot strip 224.

[0101] In this embodiment, the limiting structure is a slot 128, which has a first slot 1281, a second slot 1282, and a third slot 1283. The first slot 1281 is located on the second side 1212, the second slot 1282 is located on the fourth side 1214, and the third slot 1283 connects between the first slot 1281 and the second slot 1282 and is located on the end face of the connecting part 121. When the snap-fit ​​component 22 is connected to the connecting part 121, the slot 128 is used for the snap-fit ​​strip 224 of the snap-fit ​​component 22 to snap into place. In specific applications, when the snap-fit ​​component 22 is connected to the connecting part 121, the snap-fit ​​strip 224 is inserted into the slot 128 from the third slot 1283, and both ends of the snap-fit ​​strip 224 extend from the first slot 1281 and the second slot 1282. By providing the slot 128 and the locking strip 224, excessive rotation of the locking component 22 when it is fitted onto the connecting part 121 can be avoided, which facilitates better positioning of the locking component 22. In this embodiment, the slot 128 divides the connecting part 121 into two protrusions. It can be understood that in other embodiments, the connecting part 121 may only include one of these two protrusions. It should be noted that, using this technical solution, a portion of the locking component 22 is engaged with the slot 128 of the connecting part 121.

[0102] Of course, in specific applications, as a first alternative implementation, the snap-fit ​​component 22 may not have the snap-fit ​​strip 224. The snap-fit ​​component 22 includes a first snap-fit ​​wall 221, a second snap-fit ​​wall 222, and a third snap-fit ​​wall 223. When the snap-fit ​​component 22 is connected to the connecting part 121, the inner side of the first snap-fit ​​wall 221 is attached to the second side surface 1212, the inner side of the second snap-fit ​​wall 222 is attached to the fourth side surface 1214, and the third snap-fit ​​wall 223 is inserted into the slot 128 from the third slot 1283, with both ends of the third snap-fit ​​wall 223 extending from the first slot 1281 and the second slot 1282. Using this technical solution, a portion of the snap-fit ​​component 22 is snapped into the slot 128 of the connecting part 121.

[0103] As a second alternative implementation, the snap-fit ​​component 22 may also omit the snap-fit ​​strip 224. The snap-fit ​​component 22 includes a first snap-fit ​​wall 221, a second snap-fit ​​wall 222, and a third snap-fit ​​wall 223. When the snap-fit ​​component 22 is in the locked state, the inner side of the first snap-fit ​​wall 221 is attached to the second side 1212, the inner side of the second snap-fit ​​wall 222 is attached to the fourth side 1214, and the inner side of the third snap-fit ​​wall 223 is attached to the third side 1213. Using this technical solution, the snap-fit ​​component 22 is fitted over the connecting portion 121.

[0104] As a third alternative implementation, a slot 128 is formed on the end face of the connecting portion 121. The slot 128 has a first slot 1281, a second slot 1282, and a third slot 1283. The first and second slots 1281 and 1282 are both formed on the first side surface 1211 and are spaced apart. The third slot 1283 connects the first and second slots 1281 and is formed on the end face of the connecting portion 121. The shape of the latching member 22 matches the shape of the slot 128, for example... Figure 12 As shown, the slot 128 is U-shaped, and correspondingly, the snap-fit ​​component 22 is also U-shaped. Using this technical solution, the snap-fit ​​component 22 is fully engaged with the slot 128 of the connecting portion 121.

[0105] In one embodiment, please refer to Figure 4b The distance L2 from the side of the slot 128 near the filter element water flow interface 13 to the end of the filter element water flow interface 13 away from the connecting part 121 is greater than or equal to 15mm and less than or equal to 90mm. In specific applications, L2 can be 15mm, 30mm, 50mm, 70mm, 90mm, etc.

[0106] In one embodiment, the filter element body is cylindrical, having a first end 161 and a second end 162 disposed opposite each other along a third direction Z. The filter host 20 has a support portion 26 for supporting the first end 161 of the filter element body, and a connecting portion 121 is disposed at the second end 162 of the filter element body. In this way, both ends of the filter element body are connected to the filter host 20, improving the stability of the filter element device 10 installation.

[0107] In one embodiment, groove structures 129 are provided on opposite sides of the connecting portion 121, and the groove structures 129 are used to accommodate the snap-fit ​​component 22. In this way, the snap-fit ​​component 22 is prevented from protruding circumferentially after being connected to the filter element device 10, which helps to reduce the space occupied. Furthermore, when the snap-fit ​​component 22 is connected to the filter element device 10, the groove structures 129 can prevent the filter element device 10 from rotating.

[0108] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A filter cartridge device, characterized in that, The filter element body includes a filter element body, which has a filter element water flow interface in a first direction. The filter element water flow interface is used to connect to the host water flow interface of the filter host. The filter element body has a connecting part for the snap-fit ​​component of the filter host to snap-fit ​​into place. The filter element device further includes a locking component, which includes a locking member for keeping the snap-fit ​​component in a locked state. The locking member is disposed on or near the connecting portion.

2. The filter element device as described in claim 1, characterized in that, The locking element is a movable snap-fit ​​or a fixed snap-fit ​​structure; The locking element is a movable snap-fit, which has a locked state and a clearance state; When the locking member is in the locked state, it can keep the latching member in the locked state; when the locking member is in the yielding state, the latching member can move in the direction of releasing the lock on the filter element body.

3. The filter element device as described in claim 2, characterized in that, The filter element body is provided with a receiving cavity and a first opening communicating with the receiving cavity, and the first opening is disposed in the filter element body along a second direction; The locking member is slidably connected to the receiving cavity along the second direction; when the locking member is in the locked state, at least a portion of the locking member extends out of the outer periphery of the filter body from the first opening to restrict the movement of the snap-fit ​​component in the unlocking direction; when the locking member is in the avoidance state, the locking member slides into the receiving cavity to release the restriction on the movement of the snap-fit ​​component in the unlocking direction.

4. The filter element device as described in claim 3, characterized in that, The locking component also includes a locking control component connected to the locking element, and the filter element body is further provided with a second opening communicating with the receiving cavity; The locking control is slidably disposed in the receiving cavity and partially extends out of the second opening to protrude from the outer periphery or end of the filter element body. The locking control can be used by the user to switch the locking member from the locked state to the avoidance state. The second opening is disposed on the filter element body along the second direction and is adjacent to the first opening along the third direction; A portion of the locking control extends out of the second opening, protruding from the outer periphery of the filter element body, and is spaced apart from the locking member in the third direction. The locking control is used by the user to press and drive the locking member to switch to the avoidance state, and the third direction is perpendicular to the second direction.

5. The filter element device as described in claim 4, characterized in that, The portion of the locking member extending out of the receiving cavity is provided with a guide surface. When the snap-fit ​​component moves in the locking direction, it acts on the guide surface to cause the locking member to slide in the direction of the avoidance state. Alternatively, the locking control element may be provided to protrude from the locking element in the second direction; Alternatively, the locking control component and the locking component are integrally formed; Alternatively, the locking component may further include a first elastic element, one end of which is connected to the locking control element and the other end of which is connected to the receiving cavity. The filter element body has a first cavity wall facing the receiving cavity. The first cavity wall is opposite to the second opening and has a limiting groove. The end of the first elastic element away from the locking control element is limited to the limiting groove.

6. The filter element device as described in claim 3, characterized in that, The filter element body has a third opening at one end that communicates with the receiving cavity in a third direction, and the third opening is used for the locking component to be inserted into the receiving cavity; The filter element device further includes a cap connected to the third opening for sealing the third opening, wherein the third direction is perpendicular to the first direction and the second direction.

7. The filter element device according to any one of claims 1 to 6, characterized in that, The filter element body includes a filter assembly and a filter element connector connected to one end of the filter assembly. The connecting part is disposed on the filter element connector, and the locking component is installed on the filter element connector. And / or, the connecting parts are provided with groove structures on opposite sides, the groove structures being used to accommodate the snap-fit ​​components.

8. The filter element device according to any one of claims 1 to 6, characterized in that, The locking component is provided, and the locking component and the filter element water flow interface are respectively provided on opposite sides of the filter element body; Alternatively, two locking components may be provided, and the two locking components may be symmetrically arranged circumferentially along the filter element body.

9. The filter element device according to any one of claims 1 to 6, characterized in that, The connecting portion has a first side, a second side, a third side, and a fourth side; the first side, the second side, the third side, and the fourth side surround the outer periphery of the connecting portion; the first side and the third side are arranged facing each other; the filter element water flow interface is arranged on the first side; one locking component is provided and located on the third side, or two locking components are provided and located on the second side and the fourth side, respectively; When the latching component is in the locked state, the inner side of the latching component is attached to the second side, the third side and the fourth side; The second side and the fourth side are both planar and are arranged facing each other and parallel to each other; the third side is planar or arc-shaped; the distance between the second side and the fourth side is greater than or equal to 66mm; and / or the height of the connecting part is greater than or equal to 10mm.

10. The filter element device as described in claim 9, characterized in that, The connecting part is disposed at the end of the filter element body and also has a limiting structure, which is used to limit the snap-fit ​​component; The limiting structure is a slot; the slot has a first slot, a second slot and a third slot, the first slot is opened on the second side, the second slot is opened on the fourth side, and the third slot connects the first slot and the second slot and is opened on the end face of the connecting part. When the snap-fit ​​component is in the locked state, the slot is used for the snap-fit ​​component's snap-fit ​​strip to be inserted and connected; The distance from the side of the slot near the filter element water flow interface to the end of the filter element water flow interface away from the connection part is greater than or equal to 15mm and less than or equal to 90mm.

11. A water purifier, characterized in that, The filter includes a filter host for connecting to the filter cartridge device as described in any one of claims 1 to 10, the filter host having a host water flow interface for docking with the filter cartridge water flow interface; the filter host also has a snap-fit ​​component for snapping the connection portion to prevent the filter cartridge water flow interface from becoming detached from the host water flow interface.

12. The water purifier as described in claim 11, characterized in that, The snap-fit ​​component is fitted over the outside of the connecting portion; Alternatively, the end face of the connecting part has a slot and the snap-fit ​​component is at least partially snapped into the slot of the connecting part; Alternatively, the filter element body is cylindrical, having a first end and a second end disposed opposite to each other in a third direction, the filter host having a support portion for supporting the first end of the filter element body, and the connecting portion being disposed at the second end of the filter element body.

13. The water purifier as described in claim 11 or 12, characterized in that, The filter unit also has an installation component, and the snap-fit ​​component is rotatably or slidably connected to the installation component. The snap-fit ​​component has a locked state that can be rotated or slidably snapped into the connection part, and the snap-fit ​​component also has an unlocked state that can be reset to disengaged from the connection part.

14. The water purifier as described in claim 13, characterized in that, A second elastic element is provided between the mounting component and the snap-fit ​​component, the second elastic element being used to keep the snap-fit ​​component rotating in the direction of the unlocked state; The host water flow interface is connected to the mounting component, which includes a first connecting seat and a second connecting seat, which are respectively disposed on both sides of the host water flow interface; The snap-fit ​​component is arc-shaped or U-shaped, and its two sides are rotatably connected to the first connecting seat and the second connecting seat, respectively.

15. The water purifier as described in claim 14, characterized in that, The first connector is provided with a first connecting hole, and the second connector is provided with a second connecting hole; the two sides of the snap-fit ​​component are respectively provided with a first connecting shaft and a second connecting shaft, the first connecting shaft is connected to the first connecting hole, and the second connecting shaft is connected to the second connecting hole; There are two second elastic elements, one of which is connected between the first connecting shaft and the first connecting seat, and the other of which is connected between the second connecting shaft and the second connecting seat.

16. The water purifier as described in claim 13, characterized in that, The latching component includes a first latching wall, a second latching wall, and a third latching wall. The first latching wall and the second latching wall are arranged facing each other, and the third latching wall is connected between the first latching wall and the second latching wall. When the latching component is in the locked state, the inner sides of the first latching wall, the second latching wall, and the third latching wall are all used to fit against the connecting part. Alternatively, the latching component includes a first latching wall, a second latching wall, a third latching wall, and a latching strip. The first latching wall and the second latching wall are arranged facing each other, and the third latching wall and the latching strip are both connected between the first latching wall and the second latching wall. When the latching component is in the locked state, the inner sides of the first latching wall, the second latching wall, and the third latching wall are all used to fit against the connecting part, and the latching strip is used to be latched in the slot of the connecting part.

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