A water purifier filter cartridge quick release structure and a parallel water purifier

Abstract

The application discloses a quick dismounting structure of a filter cartridge of a water purifier and a parallel water purifier, and relates to the technical field of water purifiers, in particular to the quick dismounting structure of the filter cartridge of the water purifier, which comprises a connecting part used for being fixedly connected with a filter cartridge assembly, wherein the connecting part comprises a clamping groove, and the length direction of the clamping groove and the plug-in direction of the filter cartridge assembly form an included angle; a locking assembly comprising a sliding mechanism and a handle mechanism, wherein the sliding mechanism is arranged to slide relative to a waterway assembly, the handle mechanism is arranged to rotate relative to the waterway assembly, and the handle mechanism is used for driving the sliding mechanism to act in the form of a lever; and the sliding mechanism is arranged to slide relative to the clamping groove, and when the sliding mechanism acts, the connecting part can act along the plug-in direction of the filter cartridge assembly; the quick dismounting structure of the filter cartridge of the water purifier and the parallel water purifier can realize the fixation and quick dismounting of the filter cartridge assembly and the waterway assembly, reduce the difficulty of replacing a filter element, and improve the use experience.

Description

Technical Field

[0001] This invention relates to the field of water purifier technology, and more specifically, to a quick-release structure for a water purifier filter cartridge. Furthermore, this invention also relates to a parallel water purifier including the aforementioned quick-release structure for the water purifier filter cartridge. Background Technology

[0002] A central water purifier is the first stage of purification for all the water used in a house. It can filter out sediment, rust, and large particles from tap water. It prevents the large amount of sediment and impurities generated in the urban and residential water supply network from causing harm to the human body, and also plays a positive role in protecting concealed pipes, faucets, plumbing, water heaters, boilers, central air conditioning, washing machines, dishwashers, coffee machines, and other water appliances (water purifiers, reverse osmosis systems, water softeners).

[0003] Current central water purifiers use PP cotton or carbon fiber composite filter rods as their filter cartridges, which have a very limited lifespan. The filter cartridges turn black and discolor within six months to a year, and the water output decreases. In areas with poor water quality, the filter cartridges are easily clogged, and the lifespan may even be less than six months. Moreover, flushing cannot restore the filter cartridges, affecting the lifespan of the machine and the user experience. Therefore, the filter cartridge assembly needs to be replaced regularly. Most existing filter cartridge assemblies are wrapped in filter cartridges, and the filter cartridges are connected to the main unit of the water purifier via threads. When replacing them, special tools are required, making filter cartridge replacement difficult and requiring professional operation, which affects the user experience.

[0004] In conclusion, how to solve the problem of difficult replacement of water purifier filter cartridges is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a quick-release structure for a water purifier filter cartridge, which, through the combination of the connecting part and the locking component, enables the fixing and quick release of the filter cartridge assembly and the water circuit assembly, reduces the driving force required for disassembling and assembling the filter cartridge assembly, reduces the difficulty of replacing the filter element, and improves the user experience.

[0006] Another objective of this invention is to provide a parallel water purifier including the above-mentioned quick-release filter cartridge structure, which can simultaneously install multiple filter cartridge assemblies in parallel, reducing the amount of water passing through the filter cartridge per unit time, thereby extending the filter cartridge replacement cycle.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A quick-release structure for a water purifier filter cartridge is used for the fixed installation of the filter cartridge assembly and the water circuit assembly inside the water purifier.

[0009] The quick-release structure of the water purifier filter cartridge includes:

[0010] A connecting part is used for fixed connection with the filter cartridge assembly. The connecting part includes a snap-fit ​​groove, and the length direction of the snap-fit ​​groove forms an angle with the insertion and removal direction of the filter cartridge assembly.

[0011] The locking assembly includes a sliding mechanism and a handle mechanism. The sliding mechanism is slidably arranged relative to the water channel assembly, and the handle mechanism is rotatably arranged relative to the water channel assembly. The handle mechanism is used to drive the sliding mechanism to move in the form of a lever. The sliding mechanism is slidably arranged relative to the snap-fit ​​groove. When the sliding mechanism moves, it can drive the connecting part to move along the insertion and removal direction of the filter cartridge assembly.

[0012] Preferably, the sliding mechanism includes a driving protrusion, which is slidably mounted in the snap-fit ​​groove;

[0013] The snap-fit ​​groove includes a guide portion and a locking portion. One end of the guide portion is connected to the locking portion. The length direction of the guide portion forms an acute angle with the insertion / removal direction of the filter cartridge assembly. The length direction of the locking portion forms a right angle with the insertion / removal direction of the filter cartridge assembly. And / or, the length direction of the locking portion is the same as the sliding direction of the sliding mechanism.

[0014] Preferably, the locking portion is provided with a backflow prevention protrusion to prevent the driving protrusion from sliding from the locking portion to the guide portion.

[0015] Preferably, the anti-return protrusion is disposed on the side wall of the locking part near the water channel assembly, and both sides of the anti-return protrusion are provided with guide slopes to guide the driving protrusion to slide towards the top of the anti-return protrusion so as to pass through the gap between the top of the anti-return protrusion and the other side wall of the locking part.

[0016] Preferably, the guide portion has an opening at one end away from the locking portion, for disengaging the drive protrusion from the end of the snap-fit ​​groove.

[0017] Preferably, the connecting portion further includes a side stop protrusion, which abuts against the side of the sliding mechanism away from the snap-fit ​​groove.

[0018] Preferably, the sliding mechanism further includes a first elongated hole and a second elongated hole perpendicular to the length direction;

[0019] The first elongated hole is slidably installed with the water channel assembly;

[0020] The second elongated hole is slidably mounted to the handle mechanism.

[0021] Preferably, the handle mechanism includes a transition portion for rotatably mounting with the water system assembly;

[0022] An angle limiting mechanism is provided between the adapter and the water channel assembly to suppress relative rotation between the adapter and the water channel assembly.

[0023] Preferably, the angle limiting mechanism includes a stop protrusion and a damping mechanism. The stop protrusion is arranged on the circumference of the transition part, and the damping mechanism is fixedly arranged relative to the water channel assembly. The damping mechanism is provided with a limiting groove for limiting the stop protrusion and a damping protrusion for increasing the movement resistance of the stop protrusion.

[0024] The damping mechanism is provided with limit protrusions at both ends to limit the maximum rotation angle between the adapter and the water channel assembly.

[0025] Preferably, the handle mechanism further includes a handle portion and a drive portion, the drive portion being slidably mounted to the sliding mechanism, and the relative sliding direction of the two being perpendicular to the relative sliding direction of the sliding mechanism and the water channel assembly;

[0026] The lever arm length between the handle and the adapter is greater than the lever arm length between the drive and the adapter.

[0027] A parallel water purifier includes a water circuit assembly and several filter cartridge assemblies;

[0028] The water circuit assembly has several valve heads connected in parallel for connecting to the filter cartridge assembly;

[0029] The water circuit assembly is provided with a plurality of quick-release structures for water purifier filter cartridges as described in any one of the above-mentioned methods, for fixing the water circuit assembly and the filter cartridge assembly.

[0030] The quick-release filter cartridge structure for water purifiers provided by this invention has at least the following advantages compared with the prior art:

[0031] 1. By utilizing the angle between the length direction of the snap-fit ​​groove and the sliding direction of the sliding mechanism, the action of the sliding mechanism can be transformed into the movement of the connecting part along the insertion direction of the filter cartridge assembly. That is, by driving the sliding mechanism to slide, the filter cartridge assembly can be inserted and removed. By adjusting the angle, the ratio of the driving force of the sliding mechanism to the driving force of the filter cartridge assembly insertion and removal can be adjusted, which makes it easier to reduce the force required to drive the sliding mechanism, that is, to reduce the force required when replacing the filter cartridge assembly, thereby making the filter cartridge assembly easier to insert and remove. At the same time, changing the direction of the force applied to drive the insertion and removal of the filter cartridge assembly makes it easier to arrange the driving device for driving the insertion and removal of the filter cartridge assembly in a confined space.

[0032] 2. The handle mechanism is used to drive the sliding mechanism in the form of a lever, which further increases the transmission ratio between the user's force and the driving force for inserting and removing the filter cartridge assembly. This helps to further reduce the force required for the user to insert and remove the filter cartridge assembly. Moreover, the handle assembly is directly driven, so there is no need to use any additional auxiliary tools to complete the insertion and removal of the filter cartridge assembly. Compared with the threaded filter cartridge assembly, the replacement difficulty is reduced, which helps to improve the user experience.

[0033] The parallel water purifier provided by the present invention includes the above-mentioned quick-release structure for the water purifier filter cartridge and has the same beneficial effects. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the parallel water purifier provided by the present invention.

[0036] Figure 2 This is a schematic diagram of the disassembly and assembly of the parallel water purifier and filter cartridge assembly provided by the present invention.

[0037] Figure 3 This is a schematic diagram of the end cap structure provided by the present invention;

[0038] Figure 4 This is a schematic diagram of the sliding mechanism provided by the present invention;

[0039] Figure 5 This is a schematic diagram of the handle mechanism provided by the present invention;

[0040] Figure 6 This is a schematic diagram of the structure of the waterway component provided by the present invention;

[0041] Figure 7 This is a structural schematic diagram of the waterway component provided by the present invention from another perspective.

[0042] Figure 8 This is a schematic diagram of the structure of the base provided by the present invention;

[0043] Figure 9 Provided by the present invention Figure 6 Enlarged view of point A in the middle;

[0044] Figure 10 Provided by the present invention Figure 6 Enlarged view of point B in the middle;

[0045] Figure 11 This is a cross-sectional view of the parallel water purification internal water circuit assembly provided by the present invention.

[0046] Figure 12 This is a longitudinal sectional view of the parallel water purification system provided by the present invention.

[0047] Figure 13 This is a longitudinal sectional view of the internal filter cartridge assembly of the water circuit component provided by the present invention;

[0048] Figure 14 This is a schematic diagram showing the connection between the filter cartridge interface and the valve head provided by the present invention;

[0049] Figures 11-13 In the image, the arrow indicates the direction of water flow.

[0050] In the picture:

[0051] 1. Water circuit components; 11. Main water channel; 111. Sealing groove; 112. Annular groove; 12. Valve head; 13. Flow meter; 14. Water circuit connector; 141. Pin; 15. Guide mechanism; 151. Slide rail; 152. Guide protrusion; 16. Adapter seat; 161. Damping mechanism; 1611. Limiting groove; 1612. Damping protrusion; 17. Abutment seat; 18. Connecting seat;

[0052] 2. Locking assembly; 21. Handle mechanism; 211. Handle part; 212. Adapter part; 2121. Stop protrusion; 213. Drive part; 214. Side cover; 22. Sliding mechanism; 221. First elongated hole; 222. Slide groove; 223. Second elongated hole; 224. Drive protrusion;

[0053] 3. Base; 31. Filter cartridge receiving cavity; 311. Interface through hole; 312. Side opening; 32. Limiting side stop;

[0054] 4. Filter cartridge assembly; 41. End cap; 411. Filter cartridge interface; 412. Snap-fit ​​groove; 4121. Guide part; 4122. Locking part; 4123. Anti-return protrusion; 413. Side baffle protrusion; 42. Filter element. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] The core of this invention is to provide a quick-release structure for a water purifier filter cartridge. By combining the connecting part with the locking component, the filter cartridge assembly and the water circuit assembly can be fixed and quickly released, reducing the driving force required for disassembling and assembling the filter cartridge assembly, reducing the difficulty of replacing the filter element, and improving the user experience.

[0057] Another core aspect of this invention is to provide a parallel water purifier that includes the above-mentioned quick-release filter cartridge structure, which can simultaneously install multiple filter cartridge assemblies in parallel, reducing the amount of water passing through the filter cartridge per unit time, thereby extending the filter cartridge replacement cycle.

[0058] Example 1:

[0059] Please refer to Figures 1-5 A quick-release structure for a water purifier filter cartridge is used for the fixed installation of the filter cartridge assembly 4 and the water circuit assembly 1 inside the water purifier.

[0060] The quick-release structure of the water purifier filter cartridge includes:

[0061] The connecting part is used to be fixedly connected to the filter cartridge assembly 4. The connecting part includes a snap-fit ​​groove 412, and the length direction of the snap-fit ​​groove 412 is at an angle to the insertion and removal direction of the filter cartridge assembly 4.

[0062] The locking assembly 2 includes a sliding mechanism 22 and a handle mechanism 21. The sliding mechanism 22 is slidably arranged relative to the water channel assembly 1, and the handle mechanism 21 is rotatably arranged relative to the water channel assembly 1. It is used to drive the sliding mechanism 22 to move in the form of a lever. The sliding mechanism 22 is slidably arranged relative to the snap-fit ​​groove 412. When the sliding mechanism 22 moves, it can drive the connecting part to move along the insertion and removal direction of the filter cartridge assembly 4.

[0063] like Figure 3 As shown, the end cap 41 of the filter cartridge assembly 4 is used as a connecting part, and a snap-fit ​​groove 412 is provided. At the same time, a sliding mechanism 22 is slidably provided in the water circuit assembly 1. The sliding mechanism 22 is slidably installed with the snap-fit ​​groove 412. Moreover, the length direction of the snap-fit ​​groove 412 has an angle with both the sliding direction of the sliding mechanism 22 and the insertion direction of the filter cartridge assembly 4. The sliding direction of the sliding mechanism 22 also has an angle with the insertion direction of the filter cartridge assembly 4. Therefore, through the combined design of the sliding mechanism 22 and the snap-fit ​​groove 412, the direction of the force driving the insertion and removal of the filter cartridge assembly 4 is changed, that is, from the insertion and removal direction of the filter cartridge assembly 4 to the sliding direction of the sliding mechanism 22. This increases the arrangement space of the driving mechanism for driving the insertion and removal of the filter cartridge assembly 4, and facilitates the arrangement of the driving mechanism.

[0064] At the same time, by adjusting the angle between the insertion and removal direction of the slot 412 and the filter cartridge assembly 4 and / or the sliding direction of the sliding mechanism 22, the ratio of the sliding driving force of the sliding mechanism 22 and the insertion and removal driving force of the filter cartridge assembly 4 can be changed, thereby reducing the magnitude of the force required for the sliding mechanism 22 to drive, thus reducing the difficulty of inserting and removing the filter cartridge assembly 4, making it easier for users to replace the filter cartridge assembly 4 themselves, and improving the user experience.

[0065] At the same time, such as Figure 1 and Figure 2 As shown, the handle mechanism 21 drives the sliding mechanism 22 to slide in the form of a lever, which further reduces the driving force required when the user replaces the filter cartridge assembly 4. Moreover, no special tools are required; the user only needs to hold the handle mechanism 21 and move it in a straight line, which further reduces the difficulty of replacing the filter cartridge assembly 4 and improves the user experience.

[0066] In some embodiments, the sliding mechanism 22 includes a driving protrusion 224, which is slidably mounted in the snap-fit ​​groove 412.

[0067] The snap-fit ​​groove 412 includes a guide portion 4121 and a locking portion 4122. One end of the guide portion 4121 is connected to the locking portion 4122. The length direction of the guide portion 4121 forms an acute angle with the insertion and removal direction of the filter cartridge assembly 4. The length direction of the locking portion 4122 forms a right angle with the insertion and removal direction of the filter cartridge assembly 4. And / or, the length direction of the locking portion 4122 is the same as the sliding direction of the sliding mechanism 22.

[0068] like Figure 4 As shown, the sliding mechanism 22 is provided with a drive protrusion 224 that is slidably mounted on the locking groove 412, and the angle between the length direction of the locking groove 412 and the sliding direction of the sliding mechanism 22 is less than the self-locking angle. That is, the drive protrusion 224 can only slide in the locking groove 412 by driving the sliding mechanism 22 to slide, and cannot be driven to slide in the locking groove 412 by the action of the connecting part in the opposite direction.

[0069] Meanwhile, the locking groove 412 includes a guide portion 4121 and a locking portion 4122. The length direction of the locking portion 4122 is the same as the sliding direction of the sliding mechanism 22 and / or perpendicular to the insertion and removal direction of the filter cartridge assembly 4. Therefore, when the driving protrusion 224 slides in the guide portion 4121, it can drive the connecting portion to move along the insertion and removal direction of the filter cartridge assembly 4, that is, drive the filter cartridge assembly 4 to move along the insertion and removal direction. When the driving protrusion 224 slides in the locking portion 4122, it no longer drives the connecting portion and the filter cartridge assembly 4 to move along the insertion and removal direction, thus avoiding the shaking of the filter cartridge assembly 4 caused by the micro-movement of the sliding mechanism 22, thereby realizing the locking of the filter cartridge assembly 4.

[0070] In some embodiments, a backstop protrusion 4123 is provided in the locking portion 4122 to prevent the driving protrusion 224 from sliding from the locking portion 4122 to the guide portion 4121.

[0071] like Figure 3 As shown, a check protrusion 4123 is provided on the side of the locking part 4122 near the guide part 4121. When the drive protrusion 224 is inside the locking part 4122, the check protrusion 4123 can increase the resistance of the drive protrusion 224 from the locking part 4122 to the guide part 4121, thereby preventing the drive protrusion 224 from entering the guide part 4121 due to misoperation. This ensures the locking stability of the sliding mechanism 22 on the connection part, and ensures the stability of the filter cartridge assembly 4 and the water circuit assembly 1 after installation.

[0072] In some embodiments, the check protrusion 4123 is disposed on the side wall of the locking portion 4122 near the water channel assembly 1, and both sides of the check protrusion 4123 are provided with guide slopes for guiding the drive protrusion 224 to slide toward the top of the check protrusion 4123 so as to pass through the gap between the top of the check protrusion 4123 and the other side wall of the locking portion 4122.

[0073] like Figure 3 As shown, the check protrusion 4123 is provided on the side of the locking part 4122 near the water passage assembly 1. In actual use, when the filter cartridge assembly 4 is in the locked state, the drive protrusion 224 abuts against the side wall of the locking part 4122 near the water passage assembly 1. Therefore, by providing the check protrusion 4123 on the side wall of the locking part 4122 near the water passage assembly 1, the ability of the check protrusion 4123 to suppress the movement of the drive protrusion 224 can be improved, and the uncontrolled unlocking of the filter cartridge assembly 4 caused by the drive protrusion 224 accidentally sliding from the locking part 4122 to the guide part 4121 can be avoided.

[0074] Simultaneously, when the filter cartridge assembly 4 is unlocked in a controlled manner, the external force drives the drive protrusion 224 to slide towards the guide portion 4121. With the help of the guide slopes on both sides of the check protrusion 4123, the drive protrusion 224 is guided to move towards the top of the check protrusion 4123 to pass over the check protrusion 4123, thereby causing the drive protrusion 224 to slide from the locking portion 4122 into the guide portion 4121, thus realizing the controlled unlocking of the filter cartridge assembly 4.

[0075] In some embodiments, the guide portion 4121 has an opening at one end away from the locking portion 4122, for disengaging the drive protrusion 224 from the end of the locking groove 412.

[0076] like Figure 3 As shown, an opening is provided at the end of the guide portion 4121 so that the drive protrusion 224 can disengage from the snap-fit ​​groove 412, thereby allowing the connecting portion to disengage from the sliding mechanism 22, thus realizing the disengagement of the filter cartridge assembly 4 from the water circuit assembly 1.

[0077] In some embodiments, the connecting portion further includes a side stop protrusion 413, which abuts against the side of the sliding mechanism 22 away from the snap-fit ​​groove 412.

[0078] like Figure 3 The end cap 41, which serves as the connecting part, is provided with a side stop protrusion 413. The side stop protrusion 413 and the surface where the snap-fit ​​groove 412 is located together form a slide. The sliding mechanism 22 is slidably installed in the slide, thereby ensuring the stability of the relative movement trajectory between the sliding mechanism 22 and the end cap 41 and / or the connecting part, and preventing the drive protrusion 224 from disengaging from the non-open position of the snap-fit ​​groove 412.

[0079] In some embodiments, the sliding mechanism 22 further includes a first elongated hole 221 and a second elongated hole 223 that are perpendicular in the length direction;

[0080] The first elongated hole 221 is slidably installed with the water channel assembly 1;

[0081] The second elongated hole 223 is slidably installed with the handle mechanism 21.

[0082] like Figure 4 , Figure 7 and Figure 10 As shown, the sliding mechanism 22 also includes a first elongated hole 221 and a sliding groove 222, and the water channel assembly 1 also includes a guide mechanism 15. The guide mechanism 15 includes a guide protrusion 152 and a slide rail 151 that are slidably installed with the first elongated hole 221 and the sliding groove 222, respectively. The guide mechanism 15 is fixed to the guide protrusion 152 by a screw passing through the first elongated hole 221, thereby ensuring the stability of the relative sliding trajectory between the sliding mechanism 22 and the water channel assembly 1, and preventing the sliding mechanism 22 from uncontrolled separation from the water channel assembly 1.

[0083] like Figure 2 , Figure 4 and Figure 5 As shown, the sliding mechanism 22 also includes a second elongated hole 223, the length direction of which is perpendicular to the length direction of the first elongated hole 221. The handle mechanism 21 includes a driving part 213, which is slidably mounted to the second elongated hole 223. Therefore, when the handle mechanism 21 rotates around the water channel assembly 1, the driving part 213 rotates and moves relative to the sliding mechanism 22 along the length direction of the second elongated hole 223. During this process, the sliding mechanism 22 moves relative to the connecting part along the length direction of the first elongated hole 221.

[0084] In some embodiments, the handle mechanism 21 includes a transition portion 212 for rotatably mounting with the water system assembly 1;

[0085] An angle limiting mechanism is provided between the adapter 212 and the water circuit assembly 1 to suppress the relative rotation between the adapter 212 and the water circuit assembly 1.

[0086] like Figure 5 , Figure 7 and Figure 9 As shown, the water system component 1 includes an adapter 16 for rotatably mounting with the adapter 212. An angle limiting mechanism is provided between the adapter 16 and the adapter 212 for relative rotation of the adapter 16 and the adapter 212. When the two rotate relative to each other to a preset angle, the angle limiting mechanism can lock the relative angle between the two, thereby preventing uncontrolled rotation between the handle mechanism 21 and the water system component 1.

[0087] like Figure 9 As shown, an abutment seat 17 is provided in the water circuit assembly 1. When the handle mechanism 21 is rotated to the unlocked position of the filter cartridge assembly 4, the end of the handle mechanism 21 abuts against the abutment seat 17, thereby suppressing further rotation of the handle mechanism 21 and preventing the handle mechanism 21 from rotating excessively.

[0088] In some embodiments, the angle limiting mechanism includes a stop protrusion 2121 and a damping mechanism 161. The stop protrusion 2121 is arranged around the circumference of the transition portion 212, and the damping mechanism 161 is fixedly arranged relative to the water channel assembly 1. The damping mechanism 161 is provided with a limiting groove 1611 for limiting the stop protrusion 2121 and a damping protrusion 1612 for increasing the movement resistance of the stop protrusion 2121.

[0089] The damping mechanism 161 has limit protrusions at both ends to limit the maximum rotation angle between the adapter 212 and the water circuit assembly 1.

[0090] like Figure 5 and Figure 10 As shown, a stop protrusion 2121 is provided on the outer periphery of the adapter 212, and a damping mechanism 161 is provided in the water circuit assembly 1. Through the interaction between the stop protrusion 2121 and the limiting groove 1611 and the damping protrusion 1612 in the damping mechanism 161, the user can clearly perceive the feedback between different angle switching when the handle mechanism 21 rotates. When the check protrusion 4123 is engaged with the limiting groove 1611, the rotation angle of the handle mechanism 21 is locked to prevent uncontrolled rotation of the handle mechanism 21, thereby ensuring the stability of the position of the sliding mechanism 22 and the stability of the locking of the filter cartridge assembly 4.

[0091] In some embodiments, the handle mechanism 21 further includes a handle portion 211 and a drive portion 213, the drive portion 213 being slidably mounted to the sliding mechanism 22, and the relative sliding direction of the two being perpendicular to the relative sliding direction of the sliding mechanism 22 and the water channel assembly 1.

[0092] The lever arm length between the handle part 211 and the adapter part 212 is greater than the lever arm length between the drive part 213 and the adapter part 212.

[0093] like Figure 5 As shown, the handle part 211 of the handle mechanism 21 is the force-applying end, and the drive part 213 is the transmission end. By adjusting the ratio of the lever arm lengths of the two ends to the transfer part 212, the ratio of the applied force to the transmitted force is adjusted, thereby controlling the driving force required for inserting and removing the filter cartridge assembly 4.

[0094] In addition to the quick-release structure of the water purifier filter cartridge disclosed in the above embodiments, the present invention also provides a parallel water purifier, including a water circuit assembly 1 and a plurality of filter cartridge assemblies 4.

[0095] Several valve heads 12 are connected in parallel within the water circuit assembly 1 for inserting into the filter cartridge assembly 4;

[0096] The water circuit assembly 1 is provided with several quick-release structures for water purifier filter cartridges, which are any of the above-mentioned quick-release structures, for fixing and connecting the water circuit assembly 1 and the filter cartridge assembly 4.

[0097] like Figure 1 , Figure 2 and Figure 8 As shown, at least two sets of valve heads 12 are connected in parallel within the water circuit assembly 1, all for inserting into the filter cartridge assembly 4. That is, multiple filter cartridge assemblies 4 are connected in parallel within the water circuit assembly 1, as shown. Figure 10 and Figure 11 As shown, multiple filter cartridge assemblies 4 filter simultaneously, thereby reducing the total amount of filtration per unit time for a single filter cartridge assembly 4, thus slowing down the clogging rate of a single filter cartridge assembly 4, extending the replacement cycle of the filter cartridge assembly 4, and improving the user experience.

[0098] The structure of the other parts of this parallel water purifier is described in reference to existing technologies and will not be repeated here.

[0099] Example 2:

[0100] Please refer to Figures 1-2 A parallel central water purifier, comprising:

[0101] Water circuit component 1 includes a main water circuit channel 11 and a water circuit connector 14. The main water circuit channel 11 and the water circuit connector 14 are connected by a quick-connect structure. Several sets of valve heads 12 are arranged in parallel on the main water circuit channel 11.

[0102] Several filter cartridge assemblies 4 are connected to the valve head 12 in a one-to-one manner.

[0103] like Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 11 and Figure 12As shown, the water circuit assembly 1 includes a water circuit connector 14 and a water circuit main channel 11 connected by a quick-connect structure. The filter cartridge assembly 4 is fixedly installed with the water circuit main channel 11. When replacing the filter cartridge assembly 4, the water circuit connector 14 can be directly separated from the water circuit main channel 11, and the assembly of the filter cartridge assembly 4 and the water circuit main channel 11 can be removed from the original installation position. This makes the replacement of the filter cartridge assembly 4 not limited by the space of the original installation position, which is convenient for users to perform replacement operations, reduces the difficulty of replacing the filter cartridge assembly 4, and improves the user experience.

[0104] It is worth noting that a sealing groove 111 is provided on the outside of the plug end of the main water channel 11. A sealing ring is provided in the sealing groove 111 to increase the sealing performance when the main water channel 11 and the water connector 14 are plugged in.

[0105] Meanwhile, several sets of valve heads 12 are installed in the main water channel 11, which allows several filter cartridge assemblies 4 to be installed in parallel in the main water channel 11. This enables multiple filter cartridge assemblies 4 to filter, reducing the filtration volume of a single filter cartridge assembly 4 per unit time, thereby increasing the replacement cycle of the filter cartridge assembly 4 and reducing the replacement frequency of the filter cartridge assembly 4, which can also improve the user experience.

[0106] In some embodiments, the end of the main water channel 11 is sealed and plugged into the insertion interface of the water connector 14, and the insertion end of the main water channel 11 is provided with an annular groove 112. A pin 141 for engaging with the annular groove 112 is slidably provided in the water connector 14, and the sliding direction of the pin 141 is perpendicular to the insertion direction of the main water channel 11.

[0107] like Figure 1 , Figure 7 and Figure 11 As shown, an annular groove 112 is provided at the insertion end of the main water channel 11. After the main water channel 11 and the water connector 14 are inserted, the pin 141 slides relative to the water connector 14 and engages with the annular groove 112, thereby locking the main water channel 11 and the water connector 14 to prevent them from separating.

[0108] In some embodiments, the water connector 14 is a right-angle elbow.

[0109] like Figure 12 As shown, the water connector 14 is a right-angle elbow, which allows the main water channel 11 to be installed perpendicular to the external water channel, thus facilitating the installation of the water purifier in a small space.

[0110] In some embodiments, the water connector 14 has a straight-through structure, which is suitable for connecting external water channels pre-embedded in the wall.

[0111] In some embodiments, the parallel central water purifier further includes a quick-release structure for driving the filter cartridge assembly 4 to move in the insertion / removal direction;

[0112] The direction of force applied by the quick-release structure is not collinear with the insertion and removal direction of the filter cartridge assembly 4.

[0113] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the filter cartridge assembly 4 and the valve head 12 are connected by a sealed plug-in method, and a quick-release structure is provided between the water circuit assembly 1 and the filter cartridge assembly 4, which can drive the filter cartridge assembly 4 to move in the plug-in direction, thereby reducing the difficulty of plugging and unplugging the filter cartridge assembly 4.

[0114] Meanwhile, the force direction of the quick-release structure is not collinear with the insertion and removal direction of the filter cartridge assembly 4, and preferably the two directions are perpendicular, which helps to avoid the impact damage caused by the filter cartridge assembly 4 suddenly falling off during user operation.

[0115] In some embodiments, the quick-release structure includes a locking component 2 and a connecting portion;

[0116] The connecting part includes a snap-fit ​​groove 412 that is fixed relative to the filter cartridge assembly 4. The length direction of the snap-fit ​​groove 412 forms an angle with the insertion and removal direction of the filter cartridge assembly 4, and the angle is an acute angle.

[0117] The locking assembly 2 includes a sliding mechanism 22 and a handle mechanism 21 that drives the sliding mechanism 22 to slide relative to the water channel assembly 1 in the form of a lever. The sliding direction of the sliding mechanism 22 is perpendicular to the insertion and removal direction of the filter cartridge assembly 4.

[0118] like Figures 2-5 As shown, the end cap 41 of the filter cartridge assembly 4 serves as a connecting part, and the snap-fit ​​groove 412 is provided on the side of the end cap 41. The sliding mechanism 22 is slidably installed with the water circuit assembly 1. The handle mechanism 21 drives the sliding mechanism 22 to slide in the form of a lever. The sliding mechanism 22 is provided with a driving protrusion 224 that is slidably installed with the snap-fit ​​groove 412. Thus, when the handle mechanism 21 rotates relative to the water circuit assembly 1, it can drive the sliding mechanism 22 to slide, thereby moving the filter cartridge assembly 4 in the insertion and removal direction. By using the lever effect, the driving force required to insert and remove the filter cartridge assembly 4 is reduced, making it convenient for users to replace. Moreover, when replacing, the handle mechanism 21 can be operated directly without the need for additional tools.

[0119] In some embodiments, the handle mechanism 21 includes a handle portion 211, a transition portion 212, and a drive portion 213. The drive portion 213 is slidably mounted relative to the sliding mechanism 22, and the relative sliding direction has an angle with the length direction of the snap-fit ​​groove 412.

[0120] The water system component 1 also includes an adapter 16, with the adapter 212 rotatably mounted to the adapter 16, and an angle limiting mechanism provided between the adapter 212 and the adapter 16.

[0121] like Figure 2 As shown, the rotational motion of the handle mechanism 21 is converted into the linear motion of the filter cartridge assembly 4 along the insertion and removal direction, reducing the space required for the operation of the handle mechanism 21, making it suitable for disassembling and assembling the filter cartridge assembly 4 in confined spaces.

[0122] Meanwhile, an angle limiting mechanism is provided between the adapter 212 and the adapter seat 16, which can lock when the handle mechanism 21 is rotated to the preset position, so as to avoid the filter cartridge assembly 4 being unstable due to uncontrolled rotation of the handle mechanism 21.

[0123] In some embodiments, the handle portion 211 includes a side cover 214;

[0124] When the filter cartridge assembly 4 is in the locked position, the side cover 214 is fixedly engaged with the sliding mechanism 22.

[0125] like Figure 2 and Figure 5 As shown, a side cover 214 is provided on the side of the handle 211. When the filter cartridge assembly 4 is in the locked state, the handle 211 is in the locked position, and the side cover 214 is engaged with the sliding mechanism 22, which can lock the sliding mechanism 22 synchronously, avoid the sliding mechanism 22 from sliding due to misoperation, and thus ensure the stable installation of the filter cartridge assembly 4.

[0126] In some embodiments, the parallel central water purifier further includes a base 3 fixed relative to the water circuit assembly 1;

[0127] The base 3 includes a filter cartridge receiving cavity 31 for receiving the filter cartridge assembly 4, and the bottom of the filter cartridge receiving cavity 31 is provided with an interface through hole 311;

[0128] The filter cartridge assembly 4 includes a filter cartridge interface 411, which passes through the interface through hole 311 and is sealed and inserted into the valve head 12.

[0129] like Figure 8 and Figure 9 As shown, a connecting seat 18 is provided in the water circuit assembly 1, and the base 3 is fixedly connected by bolts. A filter cartridge receiving cavity 31 is provided in the base 3. When the end of the filter cartridge assembly 4 is inserted, it can radially limit the filter cartridge assembly 4 and ensure that the trajectory of the filter cartridge assembly 4 moving along the insertion and removal direction is stable.

[0130] Meanwhile, an interface through hole 311 is provided at the bottom of the filter cartridge receiving cavity 31 for the filter cartridge interface 411 of the filter cartridge assembly 4 to pass through, and a side opening 312 is provided on the side wall of the filter cartridge receiving cavity 31 for the drive protrusion 224 in the sliding mechanism 22 to pass through and slide with the snap-fit ​​groove 412.

[0131] Meanwhile, a limit stop 32 is also provided inside the base 3, which abuts against the side wall of the sliding mechanism 22 to limit the degree of freedom of the sliding mechanism 22 perpendicular to the sliding direction and ensure its sliding trajectory is stable.

[0132] In some embodiments, the insertion sealing surfaces of the valve head 12 and the filter cartridge interface 411 are provided with limiting steps to limit the insertion overlap length of the two by mutual contact.

[0133] like Figure 12 and Figure 14 As shown, the filter cartridge interface 411 and the valve head 12 are connected by a sealed plug-in method. An auxiliary sealing groove is provided on the outer periphery of the filter cartridge interface 411, and a sealing ring is provided in the auxiliary sealing groove to increase the sealing performance between the filter cartridge interface 411 and the valve head 12. At the same time, a limiting step is provided at the contact sealing surface of the filter cartridge interface 411 and the valve head 12 respectively. When the two are plugged in, the limiting steps of the two abut against each other to limit the insertion depth of the two.

[0134] In some embodiments, a flow meter 13 is provided in the main water channel 11 to detect the flow rate of the medium in the main water channel 11.

[0135] like Figure 1 , Figure 2 , Figure 11 , Figure 12 and Figure 13 As shown, the main water channel 11 includes an inlet channel and an outlet channel. Several filter cartridge assemblies 4 are connected in parallel within the inlet and outlet channels. Water flows into the filter cartridge assembly 4 through the inlet channel, is filtered by the filter element 42 inside the filter cartridge assembly 4, and is discharged through the outlet channel. The simultaneous filtration of multiple parallel filter cartridge assemblies 4 helps to improve the filtration speed, slow down the clogging speed of the filter element 42, and thus improve the user experience.

[0136] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0137] The quick-release filter cartridge structure and parallel water purifier provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A quick-release structure for a water purifier filter cartridge, used for the fixed installation of the filter cartridge assembly (4) and the water circuit assembly (1) within a water purifier, characterized in that, include: A connecting part is used to be fixedly connected to the filter cartridge assembly (4). The connecting part includes a snap-fit ​​groove (412). The length direction of the snap-fit ​​groove (412) is at an angle to the insertion and removal direction of the filter cartridge assembly (4). The locking assembly (2) includes a sliding mechanism (22) and a handle mechanism (21). The sliding mechanism (22) is slidably arranged relative to the water channel assembly (1), and the handle mechanism (21) is rotatably arranged relative to the water channel assembly (1) for driving the sliding mechanism (22) to move in the form of a lever. The sliding mechanism (22) is slidably arranged relative to the snap-fit ​​groove (412). When the sliding mechanism (22) moves, it can drive the connecting part to move along the insertion and removal direction of the filter cartridge assembly (4). The sliding mechanism (22) includes a driving protrusion (224), which is slidably mounted in the snap-fit ​​groove (412); The snap-fit ​​groove (412) includes a guide part (4121) and a locking part (4122). One end of the guide part (4121) is connected to the locking part (4122). The length direction of the guide part (4121) forms an acute angle with the insertion and removal direction of the filter cartridge assembly (4). The length direction of the locking part (4122) forms a right angle with the insertion and removal direction of the filter cartridge assembly (4). And / or, the length direction of the locking part (4122) is the same as the sliding direction of the sliding mechanism (22).

2. The quick-release structure for the water purifier filter cartridge according to claim 1, characterized in that, The locking part (4122) is provided with a backflow prevention protrusion (4123) to prevent the driving protrusion (224) from sliding from the locking part (4122) to the guide part (4121).

3. The quick-release structure for the water purifier filter cartridge according to claim 2, characterized in that, The anti-return protrusion (4123) is disposed on the side wall of the locking part (4122) near the water channel assembly (1), and both sides of the anti-return protrusion (4123) are provided with guide slopes to guide the driving protrusion (224) to slide towards the top of the anti-return protrusion (4123) to pass through the gap between the top of the anti-return protrusion (4123) and the other side wall of the locking part (4122).

4. The quick-release structure for the water purifier filter cartridge according to claim 1, characterized in that, The guide portion (4121) has an opening at one end away from the locking portion (4122) for disengaging the drive protrusion (224) from the end of the snap-fit ​​groove (412).

5. The quick-release structure for the water purifier filter cartridge according to claim 1, characterized in that, The connecting part also includes a side stop protrusion (413), which abuts against the side of the sliding mechanism (22) away from the snap-fit ​​groove (412).

6. The quick-release structure for the water purifier filter cartridge according to claim 1, characterized in that, The sliding mechanism (22) also includes a first elongated hole (221) and a second elongated hole (223) that are perpendicular to the length direction. The first elongated hole (221) is slidably installed with the water channel assembly (1); The second elongated hole (223) is slidably mounted to the handle mechanism (21).

7. The quick-release structure for the water purifier filter cartridge according to claim 1, characterized in that, The handle mechanism (21) includes a transition part (212) for rotatably mounting with the water circuit assembly (1); An angle limiting mechanism is provided between the adapter (212) and the water channel assembly (1) to suppress the relative rotation between the adapter (212) and the water channel assembly (1).

8. The quick-release structure for the water purifier filter cartridge according to claim 7, characterized in that, The angle limiting mechanism includes a stop protrusion (2121) and a damping mechanism (161). The stop protrusion (2121) is arranged on the circumference of the transition part (212). The damping mechanism (161) is fixedly arranged relative to the water channel assembly (1). The damping mechanism (161) is provided with a limiting groove (1611) for limiting the stop protrusion (2121) and a damping protrusion (1612) for increasing the movement resistance of the stop protrusion (2121). The damping mechanism (161) has limit protrusions at both ends to limit the maximum rotation angle between the adapter (212) and the waterway assembly (1).

9. The quick-release structure for the water purifier filter cartridge according to claim 7, characterized in that, The handle mechanism (21) further includes a handle part (211) and a drive part (213). The drive part (213) is slidably mounted with the sliding mechanism (22), and the relative sliding direction of the two is perpendicular to the relative sliding direction of the sliding mechanism (22) and the water channel assembly (1). The lever arm length between the handle (211) and the adapter (212) is greater than the lever arm length between the drive (213) and the adapter (212).

10. A parallel water purifier, characterized in that, It includes a water circuit assembly (1) and several filter cartridge assemblies (4); The water circuit assembly (1) has several valve heads (12) connected in parallel for connecting to the filter cartridge assembly (4). The water circuit assembly (1) is provided with a number of quick-release structures for water purifier filter cartridges as described in any one of claims 1-9, for fixing the water circuit assembly (1) and the filter cartridge assembly (4).

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