Filter element locking mechanism and filter device

Abstract

The utility model relates to the technical field of filtering devices, in particular to a filter element locking mechanism and a filtering device.The filtering device comprises the filter element locking mechanism, the filter element locking mechanism comprises a filter element connecting seat and a locking assembly, the filter element connecting seat is provided with a mounting cavity and at least two first openings communicated with the mounting cavity, and the locking assembly is arranged in the mounting cavity. The two first openings are oppositely formed in the radial direction of the filter element connecting base, the locking assembly comprises at least two sliding parts and elastic parts which are arranged in the mounting cavity in a sliding mode, the two sliding parts correspond to the two first openings respectively, and the elastic parts are arranged between the two sliding parts and the filter element connecting base; the two sliding parts can stretch and retract in the mounting cavity, so that the two sliding parts stretch out or retract back relative to the corresponding first openings respectively; the elastic piece is used for pushing the sliding piece to extend out relative to the first opening; the filter element locking mechanism is easy to operate, and a user can conveniently disassemble, assemble and replace the filter element by himself / herself.

Description

Technical Field

[0001] This utility model relates to the technical field of filtration devices, and in particular to a filter element locking mechanism and a filtration device. Background Technology

[0002] To improve the quality of their drinking water, many families keep water purifiers on hand. Filter cartridges, as a crucial component of water purifiers, filter and purify water. However, since filter cartridges need to be replaced regularly, the ease and convenience of their installation are important factors for users when purchasing a water purifier. Existing filter cartridge installation methods mainly include threaded fixing and rotary snap-fit ​​fixing. Threaded fixing requires a matching wrench, making cartridge replacement laborious, time-consuming, and inconvenient to store. Rotary snap-fit ​​fixing is more complex to install and remove, usually requiring professional installation, making it inconvenient for users to install and remove the filter cartridges themselves, resulting in higher daily maintenance costs and a lower user experience.

[0003] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0004] This utility model addresses the problems mentioned above, such as the complexity of existing filter element disassembly and assembly methods, which make it inconvenient for users to disassemble and assemble the filter elements themselves, resulting in high daily maintenance costs and a low user experience. It proposes a filter element locking mechanism and filtration device.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The filter element locking mechanism includes:

[0007] The filter element connector has an installation cavity and at least two first openings communicating with the installation cavity, with the two first openings being arranged opposite to each other.

[0008] The locking assembly includes at least two sliding members and an elastic member slidably disposed in the mounting cavity. The two sliding members are respectively corresponding to the two first openings. The elastic member is provided between the two sliding members and the filter element connecting seat. The two sliding members can extend and retract within the mounting cavity so that the two sliding members extend or retract relative to the corresponding first opening.

[0009] The elastic element is used to push the slider out relative to the corresponding first opening.

[0010] As described above, the filter element locking mechanism includes a locking part corresponding to the first opening, a connecting part disposed on one side of the locking part, and a driving part disposed on the side of the connecting part away from the locking part. The outer wall of the driving part is provided with an operating part, which is recessed from the outer wall of the driving part in a direction away from the locking part.

[0011] As described above, the filter element locking mechanism includes a bottom and a first sidewall connected to the bottom. The first opening extends radially through the first sidewall. The bottom has a mounting portion extending into the mounting cavity. The mounting portion has a first mounting post facing the sliding member. The sliding member has a second mounting post opposite to the first mounting post on the side facing the mounting portion. The elastic member is disposed between the first mounting post and the second mounting post.

[0012] As described above, in the filter element locking mechanism, the driving part extends away from the connecting part, the extending direction of the driving part is perpendicular to the connecting part, and a first reinforcing rib is provided between the driving part and the connecting part.

[0013] The filter element locking mechanism described above also includes a top cover, which has a first receiving cavity that opens to one side and a second sidewall located around the first receiving cavity. The first receiving cavity is adapted to the filter element connecting seat. The second sidewall has at least two second openings that correspond to the two first openings respectively. The second openings allow the locking part to pass through. The top cover also has a first communication port connected to the first receiving cavity. The first communication port allows the locking component to pass through.

[0014] As described above, the filter locking mechanism has a first extension on one side of the drive unit and a button shell on the upper part of the top cover. The button shell has a cavity communicating with the first receiving cavity, a positioning part disposed in the cavity, and a second extension on both sides of the cavity. The cavity is connected to the first receiving cavity through the first communication port. The positioning part extends toward the first communication port and divides the cavity to form a second receiving cavity corresponding to the first extension. At least a portion of the first extension extends into the second receiving cavity and is opposite to the positioning part. The second extension contacts the first extension.

[0015] As described above, the filter element locking mechanism has a buckle on the inner wall of the top cover, a slot corresponding to the buckle on the outer wall of the filter element connecting seat, and a clearance wall located above the slot. The clearance wall has a first preset angle relative to the vertical plane, and a guide wall is provided at the bottom of the buckle. The guide wall has a second preset angle relative to the vertical plane, and the guide wall slides downward relative to the clearance wall so that the buckle engages with the slot.

[0016] The filter element locking mechanism described above further includes a limiting member disposed in the mounting cavity. The limiting member is disposed on the upper part of the sliding member. The limiting member has a second communication port through which the locking assembly passes. Limiting walls opposite to the sliding member are provided on both sides of the second communication port.

[0017] As described above, in the filter element locking mechanism, the limiting member is provided with a first connecting hole, and the filter element connecting seat is provided with a second connecting hole corresponding to the first connecting hole. The limiting member is detachably connected to the filter element connecting seat by a fastener, and the fastener passes through the first connecting hole and the second connecting hole.

[0018] On the other hand, this utility model also provides a filtration device, including a filter cartridge, a filter element body, and a filter element locking mechanism as described above. The filter element body is detachably installed in the lower part of the filter element connecting seat. The inner cavity of the filter cartridge can accommodate the filter element body. The filter cartridge is also provided with at least two locking holes corresponding to the two first openings. The sliding member moves telescopically within the mounting cavity so that the end of the sliding member can be inserted into or disengaged from the locking hole.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By incorporating a locking component in the filter element locking mechanism, the user can directly apply force to the two sliding members, causing them to retract into the mounting cavity relative to the two first openings. Combined with the elastic element, the sliding members automatically extend outward from the first openings, enabling the two sliding members to telescopically move within the mounting cavity and extend or retract relative to the two first openings. This allows the filter element locking mechanism to switch between unlocked and locked states, thus achieving quick disassembly and assembly of the filter element locking mechanism. The operation is simple, facilitating user self-disassembly and replacement of the filter element, reducing the cost of filter element use, and optimizing the user experience.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 The three-dimensional design of the filter element locking mechanism of this utility model Figure 1 ;

[0023] Figure 2 Disassembly of the filter element locking mechanism of this utility model Figure 1 ;

[0024] Figure 3 Disassembly of the filter element locking mechanism of this utility model Figure 2 ;

[0025] Figure 4 for Figure 1 Section A-A in Figure 1 ;

[0026] Figure 5 for Figure 1 Section A-A in Figure 2 ;

[0027] Figure 6 for Figure 1 The B-B section view in the diagram;

[0028] Figure 7 The three-dimensional design of the filter element locking mechanism of this utility model Figure 2 (Hidden top cover);

[0029] Figure 8 The internal structure of the filter element locking mechanism of this utility model Figure 1 (Hidden top cover);

[0030] Figure 9 The internal structure of the filter element locking mechanism of this utility model Figure 2 (Hidden top cover and limiting components);

[0031] Figure 10 This is a perspective view of another embodiment of the slider of this utility model. Detailed Implementation

[0032] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] 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 (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] 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.

[0035] Example 1:

[0036] like Figure 1As shown in Figure 9, this utility model provides a filter element locking mechanism, which is mainly used in filter element devices. The filter element locking mechanism is connected to the filter element body to detachably install the filter element body inside the filter cartridge. Specifically, the filter element locking mechanism includes a filter element connecting seat 1 and a locking assembly. The filter element connecting seat 1 has a mounting cavity 11 and at least two first openings 12 communicating with the mounting cavity 11. The two first openings 12 are arranged radially opposite to each other along the filter element connecting seat 1. The locking assembly includes at least two components slidably disposed in the mounting cavity. The mounting cavity 11 contains a sliding member 21 and an elastic member 22. The two sliding members 21 correspond to the two first openings 12 respectively, meaning there is a one-to-one correspondence between the two sliding members 21 and the two first openings 12. Each sliding member 21 is provided with an elastic member 22 between itself and the filter element connecting seat 1. The two sliding members 21 can extend and retract within the mounting cavity 11, allowing them to extend or retract relative to their respective first openings 12. The elastic member 22 is used to push the sliding member 21 outward relative to its corresponding first opening 12. In practical applications, the filter element locking mechanism has locked and unlocked states corresponding to the extension and retraction of the two sliding members 21 relative to the two first openings 12, respectively. When the filter element locking mechanism is in such a state... Figure 4 In the locked state shown, the two sliding members 21 extend out of the filter element connecting seat 1 through their respective first openings 12, and can be inserted into the locking holes in the filter cartridge, thereby installing the filter element locking mechanism in the filter cartridge and placing the filter element body inside the filter cartridge. At this time, the filter element device can be used normally. When the two sliding members 21 are subjected to external force and move towards each other in the mounting cavity 11, that is, when the two sliding members 21 retract relative to their respective first openings 12 into the mounting cavity 11, so that the two sliding members 21 disengage from the locking holes of the filter cartridge, the filter element locking mechanism is in the following state: Figure 5The filter element is in the unlocked state and can be removed from the filter cartridge. In addition, during the process of the two sliding members 21 retracting into the mounting cavity 11, the two sliding members 21 compress the corresponding elastic members 22, causing the two elastic members 22 to accumulate elastic energy. When the force applied to the two sliding members 21 is removed, the two sliding members 21 push against each other in the mounting cavity 11 through the two elastic members 22, causing the two sliding members 21 to extend out of the filter element connecting seat 1 through the corresponding first opening 12, so that the filter element locking mechanism changes from the unlocked state to the locked state. By incorporating the locking component in the filter element locking mechanism, the user can directly apply force to the two sliding members 21, causing them to retract into the mounting cavity 11 relative to the two first openings 12. Combined with the elastic member 22, the sliding members 21 automatically extend outward from the first openings 12, enabling them to extend and retract within the mounting cavity 11 and relative to the two first openings 12. This allows the filter element locking mechanism to switch between unlocked and locked states, achieving quick disassembly and assembly. The operation is simple, facilitating user self-disassembly and replacement of the filter element, reducing filter element usage costs, and optimizing the user experience.

[0037] Example 2:

[0038] This embodiment 2 further describes the specific structure of the sliding member 21 based on embodiment 1. In this embodiment, in order to reduce the production cost of the filter element locking mechanism, the structures of the two sliding members 21 are set to be the same. The following description uses any one of the sliding members 21 as an example; Figure 2As shown in Figure 5, the sliding member 21 includes a locking portion 211 corresponding to the first opening 12, a connecting portion 212 disposed on one side of the locking portion 211, and a driving portion 213 disposed on the side of the connecting portion 212 away from the locking portion 211. The locking portion 211 and the driving portion 213 are respectively disposed on both sides of the connecting portion 212. The locking portion 211 is disposed at one end of the connecting portion 212 facing the first opening 12, and the driving portion 213 is disposed on the other side of the connecting portion 212. The outer wall of the driving portion 213 is provided with an operating portion 214 for the user to press. The operating portion 214 slightly moves away from the outer wall of the driving portion 213 in a direction away from the locking portion 211. The filter element locking mechanism is designed to be recessed. During use, the user applies force directly to the two operating parts 214, and the driving part 213 directly drives the connecting part 212 towards the mounting cavity 11, causing the locking part 211 to retract relative to the first opening 12 into the mounting cavity 11, thereby unlocking the filter element locking mechanism. Furthermore, the slightly recessed operating parts 214 on the outer wall of the driving part 213 facilitate user operation and force application, prevent slippage when the user presses the sliding member 21, and help the user quickly identify and locate the correct unlocking position in the sliding member 21. The operating parts 214 provide clearer tactile feedback to help the user accurately unlock the filter element locking mechanism.

[0039] Optionally, the slider 21 is integrally molded, which helps to increase the structural strength of the slider 21 and extend its service life.

[0040] Optionally, the slider 21 is further provided with a protrusion 2121 located on the outer wall of the connecting part 212. The protrusion 2121 is opposite to the inner wall of the mounting cavity 11, so as to reduce the contact area between the side wall of the connecting part 212 and the inner wall of the mounting cavity 11 and increase the speed of the slider 21 in the mounting cavity 11.

[0041] Example 3:

[0042] This embodiment 3, based on embodiment 2, has the following implementation method, such as... Figure 2As shown in Figure 5, the driving part 213 extends away from the connecting part 212, and the extension direction of the driving part 213 is perpendicular to the connecting part 212. That is, the sliding member 21 is set as an L-shaped component. The locking part 211 and the connecting part 212 are on the same horizontal plane. The driving part 213 is set perpendicular to the connecting part 212. The sliding member 21 has good structural stability. The locking part 211 is driven by the driving part 213 to move into the mounting cavity 11 by external force, which is beneficial to improving the disassembly and assembly efficiency of the filter element locking mechanism. The L-shaped component will not occupy too much area or volume, which is beneficial to reducing the volume of the filter element locking mechanism.

[0043] Furthermore, to further improve the structural strength of the sliding member 21, extend its service life, and ensure the normal operation of the filter element locking mechanism, a first reinforcing rib 216 is provided between the driving part 213 and the connecting part 212. Optionally, such as Figure 4 As shown, the first reinforcing rib 216 is provided between the left and / or right sides of the driving part 213 and the connecting part 212.

[0044] Optionally, the first reinforcing rib 216 and the sliding member 21 are integrally formed.

[0045] Example 4:

[0046] This embodiment 4, based on embodiment 2, has the following implementation method, such as... Figure 2As shown in Figure 5, the filter element connecting seat 1 includes a bottom 13 and a first sidewall 14 connected to the bottom 13. The first sidewall 14 is located on the outer edge of the bottom 13 and extends upward, forming the mounting cavity 11 between the first sidewall 14 and the bottom 13. A first opening 12 extends radially through the first sidewall 14 along the filter element connecting seat 1. The bottom 13 has a mounting portion 15 extending into the mounting cavity 11. The mounting portion 15 is preferably located in the middle of the bottom 13 and extends upward. Two sliding members 21 are disposed opposite each other on both sides of the mounting portion 15. The mounting portion 15 has a first mounting post 16 facing the sliding member 21. A second mounting post 215 is provided on one side, opposite to the first mounting post 16. The elastic element 22 is disposed between the first mounting post 16 and the second mounting post 215. The first mounting post 16 and the second mounting post 215 are arranged opposite each other on the same straight line and parallel to the bottom 13. During assembly, the elastic element 22 can be directly inserted between the first mounting post 16 and the second mounting post 215 to facilitate the rapid assembly of the filter element locking mechanism and improve the production efficiency of the filter element locking mechanism. In addition, by arranging the first mounting post 16 and the second mounting post 215 along the same straight line, the retraction distance of the sliding member 21 toward the mounting cavity 11 is limited, thereby improving the unlocking and locking efficiency of the filter element locking mechanism.

[0047] Optional, such as Figure 2 As shown, the second mounting post 215 may be disposed on one side of the drive unit 213, and the first mounting post 16 is disposed correspondingly to the second mounting post 215.

[0048] Optional, such as Figure 10 As shown, the second mounting post 215 may be provided at one end of the connecting part 212 away from the locking part 211, and the first mounting post 16 is provided correspondingly to the second mounting post 215.

[0049] Alternatively, the first mounting post 16 and the sliding member 21 may be integrally formed.

[0050] On the other hand, this embodiment 4 can be combined with embodiment 3 to form a new embodiment.

[0051] Example 5:

[0052] This embodiment 5, based on embodiment 2, has the following implementation method, such as... Figure 1As shown in Figure 5, the filter element locking mechanism further includes a top cover 3. The top cover 3 has a first receiving cavity 31 that opens to one side and a second sidewall 32 located around the first receiving cavity 31. The first receiving cavity 31 opens downward and is adapted to the filter element connecting seat 1 to facilitate the installation of the top cover 3 on the upper part of the filter element connecting seat 1. The second sidewall 32 extends downward from the outer edge of the top cover 3 and forms the first receiving cavity 31 by enclosing the second sidewall 32 and the top cover 3. Further, the second sidewall 32 has at least two second openings 33 that correspond to the two first openings 12 respectively. When the top cover 3 is installed on the filter element connecting seat 1, the second sidewall 32 covers the outer periphery of the filter element connecting seat 1, and the two second openings 33 and the two first openings 12 are connected in a one-to-one correspondence. The second openings 33 allow the locking part 211 to pass through so that the locking part 211 can extend through the first opening 12 and the second opening 33 and connect with the corresponding lock hole in the filter cartridge. By setting the top cover 3 to cover the filter element connecting seat 1, the internal structure of the filter element connecting seat 1 and the locking component are covered under the top cover 3, preventing dust from falling inside the filter element connecting seat 1 and making it easy to clean.

[0053] Furthermore, to facilitate user operation of the sliding member 21, the top cover 3 is also provided with a first connecting port 34 connected to the first receiving cavity 31. The first connecting port 34 allows the locking component to pass through. During assembly, the top cover 3 is inserted into the outer periphery of the filter element connecting seat 1 through the first connecting port 34, and the driving parts 213 of the two sliding members 21 extend through the first connecting port 34, so that the operating part 214 extends above the top cover 3, facilitating user operation. In addition, the side wall of the first connecting port 34 facing the two driving parts 213 is in the extension direction of the two sliding members 21, which helps to limit the extension distance of the sliding members 21 and prevent the sliding members 21 from extending too far, thus affecting the locking and unlocking efficiency of the filter element locking mechanism.

[0054] On the other hand, this embodiment 5 can be combined with embodiment 3 and / or embodiment 4 to form new embodiments.

[0055] Example 6:

[0056] This embodiment 6, based on embodiment 5, has the following implementation method, such as... Figure 4As shown, the driving part 213 has a first extension 217 on one side. The first extension 217 is located on the top side of the driving part 213 and extends horizontally from the top of the driving part 213 away from the locking part 211. The top cover 3 also has a button shell 4. The button shell 4 is located on the top part of the top cover 3 and above the first connecting opening 34. The button shell 4 has a cavity 41 communicating with the first receiving cavity 31, a positioning part 42 located in the cavity 41, and second extensions 43 located on both sides of the cavity 41. The cavity 41 is located in the button shell 4 and is open on both sides facing the two sliding members 21 to make way for the two sliding members 21. The cavity 41 is connected to the first connecting opening 34. The through-hole 34 is connected to the first receiving cavity 31. The positioning part 42 extends toward the first through-hole 34 and divides the cavity 41 to form a second receiving cavity 411 corresponding to the first extension 217. At least part of the first extension 217 extends into the second receiving cavity 411 and is opposite to the positioning part 42. When the driving part 213 is subjected to an external force to drive the sliding member 21 to move telescopically relative to the first opening 12 in the mounting cavity 11, the driving part 213 drives the first extension 217 to move telescopically in the second receiving cavity 411 synchronously. The positioning part 42 limits the retraction distance of the two sliding members 21 toward the mounting cavity 11 to improve the locking and unlocking efficiency of the filter element locking mechanism.

[0057] Furthermore, the second extension 43 is disposed on the upper part of the open end on both sides of the cavity 41. The second extension 43 extends downward from the side edge of the button shell 4, and the second extension 43 can contact the first extension 217, so as to improve the structural stability of the filter locking mechanism through the button shell 4.

[0058] Optionally, the button housing 4 and the top cover 3 are integrally formed to increase the structural strength of the top cover 3 and the button housing 4, and to simplify the production and assembly of the top cover 3 and the button housing 4, thereby improving production efficiency and assembly efficiency.

[0059] Optional, such as Figure 4 As shown, a second reinforcing rib 218 is also provided between the driving part 213 and the first extension part 217 to further enhance the structural strength of the sliding member 21.

[0060] Optionally, the first extension 217, the second reinforcing rib 218, and the sliding member 21 are integrally formed.

[0061] On the other hand, this embodiment 6 can be combined with embodiment 3 and / or embodiment 4 to form new embodiments.

[0062] Example 7:

[0063] This embodiment 7, based on embodiment 5, has the following implementation method, such as... Figure 6 As shown, the inner wall of the top cover 3 is provided with a buckle 35, which is located on one side of the second side wall 32 and extends toward the first receiving cavity 31. The outer wall of the filter element connecting seat 1 is provided with a groove 17 corresponding to the buckle 35 and a relief wall 18 located above the groove 17. The relief wall 18 is inclined from the groove 17 toward the mounting cavity 11, that is, the relief wall 18 has a relative vertical plane as shown in the figure. Figure 6 As shown in the first preset angle, the bottom 13 of the buckle 35 is provided with a guide wall 36, and the guide wall 36 has a relative angle to the vertical plane as shown in the figure. Figure 6 As shown in the second preset angle, the guide wall 36 slides downward relative to the relief wall 18, so that the buckle 35 engages with the slot 17, thereby realizing the quick installation of the top cover 3 and the filter element connecting seat 1. The top cover 3 directly covers the filter element connecting seat 1 from top to bottom, and the buckle 35 engages with the slot 17 to fix the top cover 3 and the filter element connecting seat 1 together. The engagement structure between the top cover 3 and the filter element connecting seat 1 is relatively simple and easy to implement. It should be noted that... Figure 6 The dashed lines L1 and L2 in the figure represent the vertical plane.

[0064] On the other hand, this embodiment 7 can be combined with one or more of embodiments 3, 4 and 6 to form new embodiments.

[0065] Example 8:

[0066] This embodiment 8, based on embodiment 1, has the following implementation method, such as... Figure 7 and Figure 8 As shown, the filter element locking mechanism further includes a limiting member 5 disposed within the mounting cavity 11. The limiting member 5 is located on the upper part of the sliding member 21. The limiting member 5 has a second connecting port 51 through which the locking assembly passes. Limiting walls 52 opposite to the sliding member 21 are provided on both sides of the second connecting port 51. A slide rail space is formed between the limiting member 5 and the filter element connecting seat 1 for the sliding member 21 to slide, thereby increasing the stability of the sliding member 21 in the mounting cavity 11 during telescopic movement. In addition, the limiting walls 52 on both sides of the second connecting port 51 in the limiting member 5 are in the extension direction of the two sliding members 21, thereby limiting the extension distance of the sliding member 21 by the limiting walls 52, thereby improving the unlocking and locking efficiency of the filter element locking mechanism.

[0067] On the other hand, this embodiment 8 can be combined with one or more of embodiments 2 to 7 to form a new embodiment; in one embodiment, the limiting member 5 abuts against the connecting part 212 of the sliding member 21, the second connecting port 51 is located below the first connecting port 34, and the driving part 213 of the sliding member 21 extends above the top cover 3 through the second connecting port 51 and the first connecting port 34.

[0068] Example 9:

[0069] This embodiment 9, based on embodiment 8, has the following implementation method, such as... Figure 7 and Figure 8 As shown, the limiting member 5 is provided with a first connecting hole 53, and the filter element connecting seat 1 is provided with a second connecting hole 19 corresponding to the first connecting hole 53. The second connecting hole 19 extends downward along the height direction of the filter element connecting seat 1. The limiting member 5 is detachably connected to the filter element connecting seat 1 by fasteners. The fasteners pass through the first connecting hole 53 and the second connecting hole 19 to facilitate the detachable connection between the limiting member 5 and the filter element connecting seat 1. The structure is simple and easy to implement.

[0070] Optionally, the fastener is a screw, bolt, etc.; further optionally, the first connecting hole 53 and the second connecting hole 19 can be configured as internal threaded holes that cooperate with the fastener.

[0071] Optional, such as Figure 8 As shown, there are several first connecting holes 53, and the first connecting holes 53 are provided on both sides of the limiting member 5 away from the locking part 211. The second connecting hole 19 is provided corresponding to the first connecting hole 53.

[0072] On the other hand, this embodiment 9 can be combined with one or more of embodiments 2-7 to form new embodiments.

[0073] In one embodiment, such as Figure 8 As shown, the driving part 213 has a first reinforcing rib 216 connected to the connecting part 212 on the side facing the limiting wall 52. The limiting member 5 also has a clearance opening 54 located on the side of the limiting wall 52. The clearance opening 54 is connected to the second communication opening 51. The first reinforcing rib 216 is opposite to the clearance opening 54. When the sliding member 21 extends relative to the first opening 12, the clearance opening 54 is used to make way for the first reinforcing rib 216.

[0074] In another embodiment, such as Figure 7As shown, the outer wall of the first connecting hole 53 extends outward toward the limiting member 5, so that the outer periphery of the limiting member 5 forms a convex wall corresponding to the first connecting hole 53. The first side wall 14 of the filter element connecting seat 1 is provided with an opening 142 opposite to the first connecting hole 53. Inclined walls 141 are also provided on both sides of the opening 142. The inclined walls 141 are used to guide the limiting member 5 to be installed into the mounting cavity 11, so as to realize the quick assembly of the limiting member 5. The opening 142 is used to make way for the convex wall in the limiting member 5, so as to increase the connection stability between the limiting member 5 and the filter element connecting seat 1, and at the same time reduce the volume of the filter element locking mechanism.

[0075] Example 10:

[0076] On the other hand, this utility model also provides a filtration device, including a filter cartridge, a filter element body, and a filter element locking mechanism as described in any of the above embodiments. The filter element body is detachably installed at the lower part of the filter element connecting seat 1. The inner cavity of the filter cartridge can accommodate the filter element body. The filter cartridge is also provided with at least two locking holes corresponding to the two first openings 12. The sliding member 21 can extend and retract within the mounting cavity 11 under external force, and drive the end of the sliding member 21 to move closer to or away from the locking hole, so that the end of the sliding member 21 can be inserted into or disengaged from the locking hole, thereby realizing the locking and unlocking between the filter element locking mechanism and the filter cartridge. By setting the filter element locking mechanism, it is convenient to quickly disassemble and replace the filter element body. The operation is simple and convenient for users to disassemble and replace the filter element themselves. It should be noted that the end of the sliding member 21 is the locking part 211.

[0077] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A filter element locking mechanism, characterized in that, include: The filter element connector (1) has an installation cavity (11) and at least two first openings (12) communicating with the installation cavity (11), with the two first openings (12) being arranged opposite to each other; The locking assembly includes at least two sliding members (21) and elastic members (22) slidably disposed in the mounting cavity (11). The two sliding members (21) correspond to the two first openings (12) respectively. The elastic members (22) are provided between the two sliding members (21) and the filter element connecting seat (1). The two sliding members (21) can extend and retract within the mounting cavity (11) so that the two sliding members (21) extend or retract relative to the corresponding first openings (12). The elastic element (22) is used to push the sliding element (21) to extend relative to the corresponding first opening (12); The slider (21) includes a latching part (211) corresponding to the first opening (12), a connecting part (212) provided on one side of the latching part (211), and a driving part (213) provided on the side of the connecting part (212) away from the latching part (211).

2. The filter element locking mechanism as described in claim 1, characterized in that, The outer wall of the drive unit (213) is provided with an operation part (214), which is recessed from the outer wall of the drive unit (213) in a direction away from the latching part (211).

3. The filter element locking mechanism as described in claim 1, characterized in that, The filter element connector (1) includes a bottom (13) and a first sidewall (14) connected to the bottom (13). The first opening (12) is radially disposed in the first sidewall (14) of the filter element connector (1). The bottom (13) is provided with a mounting portion (15) extending into the mounting cavity (11). The mounting portion (15) is provided with a first mounting post (16) facing the sliding member (21). The sliding member (21) is provided with a second mounting post (215) opposite to the first mounting post (16) on one side facing the mounting portion (15). The elastic member (22) is disposed between the first mounting post (16) and the second mounting post (215).

4. The filter element locking mechanism as described in claim 1, characterized in that, The driving part (213) extends away from the connecting part (212), and the extension direction of the driving part (213) is perpendicular to the connecting part (212). A first reinforcing rib (216) is provided between the driving part (213) and the connecting part (212).

5. The filter element locking mechanism as described in claim 1, characterized in that, It also includes a top cover (3), which has a first receiving cavity (31) opening to one side and a second sidewall (32) located around the first receiving cavity (31). The first receiving cavity (31) is adapted to the filter element connecting seat (1). The second sidewall (32) has at least two second openings (33) respectively corresponding to the two first openings (12). The second openings (33) can be passed through by the locking part (211). The top cover (3) also has a first connecting port (34) connected to the first receiving cavity (31). The first connecting port (34) can be passed through by the locking component.

6. The filter element locking mechanism as described in claim 5, characterized in that, The drive unit (213) has a first extension (217) on one side, and the top cover (3) also has a button shell (4) on the upper part. The button shell (4) has a cavity (41) communicating with the first receiving cavity (31), a positioning part (42) in the cavity (41), and a second extension (43) on both sides of the cavity (41). The cavity (41) is connected to the first receiving cavity (31) through the first connecting port (34). The positioning part (42) extends toward the first connecting port (34) and divides the cavity (41) to form a second receiving cavity (411) corresponding to the first extension (217). At least part of the first extension (217) extends into the second receiving cavity (411) and is opposite to the positioning part (42). The second extension (43) is in contact with the first extension (217).

7. The filter element locking mechanism as described in claim 5, characterized in that, The inner wall of the top cover (3) is provided with a buckle (35), and the outer wall of the filter element connecting seat (1) is provided with a groove (17) corresponding to the buckle (35) and a relief wall (18) located above the groove (17). The relief wall (18) has a first preset angle relative to the vertical plane. The bottom (13) of the buckle (35) is provided with a guide wall (36). The guide wall (36) has a second preset angle relative to the vertical plane. The guide wall (36) slides downward relative to the relief wall (18) so that the buckle (35) is engaged with the groove (17).

8. The filter element locking mechanism as described in claim 1, characterized in that, It also includes a limiting member (5) disposed in the mounting cavity (11), the limiting member (5) being disposed on the upper part of the sliding member (21), the limiting member (5) having a second communication port (51) through which the locking assembly passes, and limiting walls (52) opposite to the sliding member (21) on both sides of the second communication port (51).

9. The filter element locking mechanism as described in claim 8, characterized in that, The limiting member (5) is provided with a first connecting hole (53), and the filter element connecting seat (1) is provided with a second connecting hole (19) corresponding to the first connecting hole (53). The limiting member (5) is detachably connected to the filter element connecting seat (1) by fasteners, and the fasteners are inserted through the first connecting hole (53) and the second connecting hole (19).

10. A filtration device, characterized in that, The filter cartridge includes a filter element body and a filter element locking mechanism as described in any one of claims 1-9. The filter element body is detachably installed in the lower part of the filter element connecting seat (1). The inner cavity of the filter cartridge can accommodate the filter element body. The filter cartridge is also provided with at least two locking holes corresponding to the two first openings (12). The sliding member (21) moves telescopically within the mounting cavity (11) so that the end of the sliding member (21) can be inserted into or disengaged from the locking hole.

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