Drawing type filter element assembly

By designing a pull-out filter cartridge assembly that includes a filter cartridge, slider, fixing plate, sealing cover, and reminder components, the problems of inconvenient filter cartridge disassembly and assembly and lack of timely reminders for clogging are solved, enabling rapid filter cartridge replacement and efficient operation of the water purifier.

CN224100124UActive Publication Date: 2026-04-10WUHAN ZHONGDIYUAN WATER ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN ZHONGDIYUAN WATER ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-04-16
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing pull-out filter cartridges experience decreased filtration efficiency and are inconvenient to install and remove after a period of use. They also fail to provide timely warnings of filter blockage, thus affecting the performance of the water purifier.

Method used

A pull-out filter cartridge assembly was designed, comprising a filter cartridge, slider, fixing plate, sealing cover, winding wheel, locking block, guide rod, and reminder component. Through the cooperation of spring and pull rope, the filter cartridge can be quickly disassembled and assembled, and the assembly will automatically remind the user to replace the filter cartridge when it becomes clogged.

Benefits of technology

This improves the ease of filter replacement and the purification effect of the water purifier, ensuring its continuous and efficient operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224100124U_ABST
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Abstract

The utility model discloses a drawing type filter element assembly which comprises a filter cylinder and a filter element, sliding grooves are formed in the top and the bottom of the two ends in the filter cylinder, sliding blocks are connected to the inner sides of the four sets of sliding grooves in a sliding mode, fixing plates are arranged at the ends, close to each other, of the two sets of sliding blocks jointly, and a sealing cover is arranged on one sides of the two sets of fixing plates jointly. A connecting hose connected with the filter element is arranged at the top of the interior of the filter cartridge, and a guide rod is arranged on the inner side of a group of fixing plates at the bottom in a sleeving manner; the spring A, the sealing cover, the winding wheel, the clamping block, the guide rod, the guide hole, the inserting groove, the inserting rods, the spring B and the pull rope are matched with one another, so that when the filter element is replaced by the device, the rotating wheel can be rotated to drive the two groups of inserting rods to be pulled out of the inserting groove at the same time, the sealing cover is quickly released from being fixed, and then the filter element can be pulled out of the filter cartridge to be replaced; during replacement, the filter element can be quickly disassembled and assembled by elastically fixing the filter element, so that the replacement convenience of the filter element is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to filter core technical field, concretely is a pull out filter core subassembly. BACKGROUND

[0002] The filter core of the water purifier is the most important component in the water purifier, which generally contains KDF and activated carbon. Its main function is to clean the polluted water to the state required for production and life, that is, to remove impurities, odors and harmful substances in water, and to provide safe and clean drinking water.

[0003] The patent with the authorized announcement number "CN221309811U" discloses a pull out filter core subassembly, which comprises a water purifier and a filter core. The filter core groove is provided with a leakage row assembly on one side. The leakage row assembly comprises a U-shaped groove, an oval slide plate, a hexagonal column, a circular plate, a spring and an oval bottom plate. When the filter core groove contains water, the water will slide to the bottom of the filter core groove under the action of gravity. When the filter core is inserted into the filter core groove and locked, the filter core will press the oval slide plate, so that the U-shaped groove is sealed by the oval slide plate. When the filter core is removed, the U-shaped groove will slide to the direction of the opening of the filter core groove under the action of the hexagonal column, the spring, the circular plate and the oval bottom plate, so that the oval bottom plate is separated from the U-shaped groove. Therefore, the water in the filter core groove can be discharged from the U-shaped groove, thereby avoiding the problem of secondary cleaning caused by the residual water in the filter core groove when replacing the filter core.

[0004] However, the device has the following disadvantages:

[0005] 1. After the filter core is used for a period of time, the filtration efficiency will be reduced due to the influence of impurities. In order to ensure the use effect of the water purifier, the filter core needs to be replaced regularly. The above device is not convenient for disassembling and assembling the filter core, which reduces the replacement efficiency of the filter core.

[0006] 2. After the filter core is used for a period of time, the filtration efficiency will be reduced due to the blockage of impurities. The above device fails to remind the worker when the filter core is blocked. Utility model content

[0007] The utility model aims at providing a pull out filter core subassembly to solve the problems in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of pull-out type filter element assembly, including filter cartridge and filter core, the top and bottom of both ends in the filter cartridge are provided with sliding slot, the inner side of four groups of sliding slot is slidably connected with sliding block, two groups of sliding block are close to one end and are commonly provided with fixed plate, one side of two groups of fixed plate is commonly provided with sealing cover, the top in the filter cartridge is provided with the connecting hose connected with filter core, the inner side of one group of fixed plate in bottom is equipped with guide rod, the top of guide rod is provided with the clamping block matched with filter core, the outer side of guide rod is equipped with spring A;

[0009] The top and bottom of one side of the filter cartridge are provided with insertion slots, the middle of one side of the sealing cover is equipped with a winding reel, the top and bottom of the sealing cover are provided with guide holes, the inner sides of two groups of guide holes are equipped with insertion rods, two groups of insertion rods are provided with pull ropes connected with the winding reel, two groups of insertion rods are provided with spring B on one side close to each other, and the spring B is equipped on the outer side of the pull rope, one side of the filter cartridge is provided with a reminding assembly.

[0010] Preferably, the reminding assembly includes a prompt light, a mounting box, an electrical contact A, an electrical contact B, a push rod, and a spring C. One side of the filter cartridge is provided with a prompt light, the bottom of the filter cartridge is provided with a mounting box, the top of the mounting box is equipped with a push rod extending to the inner side of the filter cartridge, the bottom of the push rod is provided with an electrical contact B, one side of the bottom of the mounting box is provided with an electrical contact A matched with the electrical contact B, the other side of the bottom of the mounting box is provided with a spring C connected with the push rod. When the spring A is blocked, the prompt light can be started to remind the staff.

[0011] Preferably, one side of the winding reel is provided with a rotating disc, which facilitates the rotation of the winding reel through the rotating disc.

[0012] Preferably, one side of the top of the filter cartridge is provided with a water inlet pipe connected with the connecting hose, and the bottom of one side of the filter cartridge is provided with a drain pipe for filtering water inflow and drainage.

[0013] Preferably, the bottom of one group of the fixed plates at the top is provided with a plug pipe matched with the filter core, and the connecting hose is connected with the plug pipe. The filter core can be positioned, and the water flow is guided into the filter core for filtration.

[0014] Preferably, a sealing strip is provided at the edge of one side of the sealing cover, and a sealing groove matched with the sealing strip is provided at the edge of one side of the filter cartridge. The sealing property of the device can be improved to prevent water leakage. After the sealing cover is closed, the sealing strip can be clamped into the sealing groove to enhance the sealing property of the connection.

[0015] Compared with the prior art, the utility model has the beneficial effects that the pull-out type filter element assembly;

[0016] 1. Through the cooperation between spring A, sealing cover, winding wheel, clamping block, guide rod, guide hole, insertion slot, insertion rod, spring B and pull rope, when the filter core is replaced, the device can pull out two groups of insertion rods from the insertion slot by rotating the rotating wheel, quickly release the fixation of the sealing cover, then the filter core can be pulled out from the filter cartridge for replacement, the elastic fixation of the filter core can quickly complete the disassembly and assembly operation of the filter core, and the convenience of replacing the filter core is improved.

[0017] 2. Through the cooperation between prompt lamp, mounting box, electric contact block A, electric contact block B, push rod and spring C, when the filter core is blocked, the device can push the guide rod to elastically descend, so as to push the push rod to descend, automatically start the prompt lamp to remind the staff, conveniently replace the filter core in time, and ensure the purification effect of the water purifier. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the utility model;

[0019] Figure 2 It is a front view of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 It is a Figure 2 structure enlarged schematic view of A of the utility model;

[0022] Figure 5 It is a Figure 2 structure enlarged schematic view of B of the utility model.

[0023] In the drawing: 1, filter cartridge; 2, spring A; 3, sealing cover; 4, winding wheel; 5, connecting hose; 6, fixed plate; 7, filter core; 8, prompt lamp; 9, clamping block; 10, guide rod; 11, guide hole; 12, insertion slot; 13, insertion rod; 14, spring B; 15, pull rope; 16, mounting box; 17, electric contact block A; 18, electric contact block B; 19, push rod; 20, spring C; 21, sliding groove; 22, sliding block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5The utility model provides an embodiment: a kind of pull formula filter element assembly, including filter cartridge 1 and filter core 7, the top and bottom of both ends in filter cartridge 1 are all provided with sliding slot 21, the inner side of four groups of sliding slot 21 is slidably connected with sliding block 22, two groups of sliding block 22 are close to one end and commonly provided with fixed plate 6, one side of two groups of fixed plate 6 is commonly provided with sealing cover 3, the edge of one side of sealing cover 3 is provided with sealing strip, the edge of one side of filter cartridge 1 is provided with the sealing groove matched with sealing strip, can improve device sealing property, prevent water leakage, after sealing cover 3 is closed, sealing strip can be inserted into sealing groove, strengthen the sealing property of junction, the top in filter cartridge 1 is provided with the connecting hose 5 connected with filter core 7;

[0026] The bottom of one group of fixed plate 6 in top is provided with the insertion tube matched with filter core 7, and the connecting hose 5 is connected with the insertion tube, so that the filter core 7 can be positioned, and water flow can be guided into the filter core 7 for filtration, one side of the top of the filter cartridge 1 is provided with a water inlet pipe connected with the connecting hose 5, and a drain pipe is arranged at the bottom of one side of the filter cartridge 1, so that filtered water can be drained.

[0027] The top and bottom of one side of the filter cartridge 1 are provided with insertion slots 12, the middle of one side of the sealing cover 3 is sleeved with a winding wheel 4, one side of the winding wheel 4 is provided with a rotating disc, so that the winding wheel 4 can be rotated through the rotating disc, the top and bottom of the sealing cover 3 are provided with guide holes 11, the inner sides of the two guide holes 11 are sleeved with insertion rods 13, the two insertion rods 13 are provided with pull ropes 15 connected with the winding wheel 4, one side of the two insertion rods 13 is provided with a spring B 14, and the spring B 14 is sleeved on the outer side of the pull rope 15, and one side of the filter cartridge 1 is provided with a reminding assembly.

[0028] The reminding assembly comprises a prompt lamp 8, a mounting box 16, an electric contact block A 17, an electric contact block B 18, a push rod 19 and a spring C 20, one side of the filter cartridge 1 is provided with the prompt lamp 8, the bottom of the filter cartridge 1 is provided with the mounting box 16, the top of the mounting box 16 is sleeved with the push rod 19 extending to the inner side of the filter cartridge 1, the bottom of the push rod 19 is provided with the electric contact block B 18, one side of the bottom of the mounting box 16 is provided with the electric contact block A 17 matched with the electric contact block B 18, the other side of the bottom of the mounting box 16 is provided with the spring C 20 connected with the push rod 19, so that when the spring A 2 is blocked, the prompt lamp 8 can be started to remind the worker.

[0029] Working principle: when the device is used, water flow can enter the connecting hose 5 through the water inlet pipe, and then enter the filter core 7 through the connecting hose 5 for filtration, and the filtered water flow can be discharged through the drain pipe.

[0030] When the filter core 7 needs to be replaced and cleaned, the staff can rotate the rotating disc to drive the winding wheel 4 to rotate, and then the winding wheel 4 can pull out the two groups of insertion rods 13 from the insertion grooves 12 by the connection of the pull rope 15 to overcome the elastic force of the springs B14, so that the fixing of the sealing cover 3 is released, at this time, the sealing cover 3 can be pulled to one side through the rotating disc, so that the fixed plate 6 is guided to slide outwards in the sliding groove 21, and the filter core 7 is exposed, at this time, the fixing of the filter core 7 is released by pulling the clamping block 9 to overcome the elastic force of the spring A2 and moving downwards, so that the filter core 7 can be quickly replaced, when replacing, the filter core 7 can be clamped into the insertion pipe, and then the clamping block 9 is pushed into the bottom of the filter core 7 by the elastic force of the spring A2, so that the filter core 7 can be quickly fixed, and then the fixed plate 6 is pushed into the filter cylinder 1 to be fixed, so that the replacement of the filter core 7 is completed;

[0031] After the filter core 7 is installed, the guide rod 10 can be aligned with the push rod 19, when the filter core 7 is blocked, due to the fact that the water flow cannot flow, the water flow can push the clamping block 9 to move downwards to overcome the elastic force of the spring A2 by using the water flow pressure after entering the filter core 7, at this time, the guide rod 10 can push the push rod 19 to move downwards to overcome the elastic force of the spring C20, when the electric contact block B18 contacts with the electric contact block A17, the prompt lamp 8 can be automatically started to remind the staff, so that the spring A2 can be replaced in time.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0033] In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it is to explain, unless another explicit provision and limit, term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, can be mechanical connection, also can be electric connection, can be directly connected, also can pass through indirect connection of intermediate medium. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

Claims

1. A pull-out filter cartridge assembly comprising a filter cartridge (1) and a filter element (7), characterized in that: The top and bottom of both ends of the filter cartridge (1) are provided with sliding grooves (21), the inner sides of four groups of sliding grooves (21) are slidably connected with sliding blocks (22), two groups of sliding blocks (22) are provided with fixed plates (6) at one end close to each other, one side of two groups of fixed plates (6) is provided with a sealing cover (3) in common, the top of the filter cartridge (1) is provided with a connecting hose (5) connected with a filter core (7), the inner side of one group of fixed plates (6) at the bottom is sleeved with a guide rod (10), the top of the guide rod (10) is provided with a clamping block (9) matched with the filter core (7), and the outer side of the guide rod (10) is sleeved with a spring A (2). The top and bottom of one side of the filter cartridge (1) are provided with insertion grooves (12), the middle of one side of the sealing cover (3) is sleeved with a winding wheel (4), the top and bottom of the sealing cover (3) are provided with guide holes (11), the inner sides of two groups of guide holes (11) are sleeved with insertion rods (13), two groups of insertion rods (13) are provided with pull ropes (15) connected with the winding wheel (4), two groups of insertion rods (13) are provided with springs B (14) on one side close to each other, and the springs B (14) are sleeved on the outer sides of the pull ropes (15), and one side of the filter cartridge (1) is provided with a reminding assembly.

2. A pull-type filter cartridge assembly according to claim 1 wherein: The reminding assembly comprises a prompt lamp (8), a mounting box (16), an electric contact block A (17), an electric contact block B (18), a push rod (19) and a spring C (20), one side of the filter cartridge (1) is provided with a prompt lamp (8), the bottom of the filter cartridge (1) is provided with a mounting box (16), the top of the mounting box (16) is sleeved with a push rod (19) extending to the inner side of the filter cartridge (1), the bottom of the push rod (19) is provided with an electric contact block B (18), one side of the bottom of the mounting box (16) is provided with an electric contact block A (17) matched with the electric contact block B (18), and the other side of the bottom of the mounting box (16) is provided with a spring C (20) connected with the push rod (19).

3. A pull-type filter cartridge assembly according to claim 1 wherein: One side of the winding wheel (4) is provided with a rotating disc.

4. A pull-type filter cartridge assembly according to claim 1 wherein: One side of the top of the filter cartridge (1) is provided with a water inlet pipe connected with the connecting hose (5), and the bottom of one side of the filter cartridge (1) is provided with a drain pipe.

5. A pull-type filter cartridge assembly according to claim 1 wherein: The bottom of one group of fixed plates (6) at the top is provided with a plug pipe matched with the filter core (7), and the connecting hose (5) is connected with the plug pipe.

6. A pull-type filter cartridge assembly according to claim 1 wherein: The edge of one side of the sealing cover (3) is provided with a sealing strip, and the edge of one side of the filter cartridge (1) is provided with a sealing groove matched with the sealing strip. The edge of one side of the sealing cover (3) is provided with a sealing strip, and the edge of one side of the filter cartridge (1) is provided with a sealing groove matched with the sealing strip.

Citation Information

Patent Citations

  • Drawing type filter element assembly

    CN221309811U