A water treatment device with a filter cartridge that is easy to replace
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN GUORUN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-16
Smart Images

Figure CN224358130U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water treatment equipment, and in particular relates to a water treatment device that facilitates filter replacement. Background Technology
[0002] In water treatment processes, filter cartridges are key components used to intercept and adsorb impurities in the water, ensuring effective water purification. Some existing water treatment devices require multiple filter cartridges, which are often connected to the water purifier housing via bottom threads. Replacing a filter cartridge requires reversing it one by one. If the device has multiple cartridges, this process is cumbersome, time-consuming, and inefficient, impacting subsequent water treatment processes. Therefore, a water treatment device that facilitates filter cartridge replacement is needed to solve these problems. Utility Model Content
[0003] The purpose of this utility model embodiment is to provide a water treatment device that facilitates filter replacement, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A water treatment device that facilitates filter replacement includes a purification shell, a drive assembly, and a filter assembly. The purification shell includes an outer shell, a limiting plate connected inside the outer shell, a plurality of through holes and placement holes in the limiting plate, and a plurality of limiting grooves in the placement holes.
[0006] The drive assembly includes a motor connected to the lower surface of the housing. The output shaft of the motor is fixedly connected to a first gear. The first gear meshes with four second gears. Each of the four second gears has a threaded tube fixedly connected inside. A first sealing bearing and a second sealing bearing are fixedly connected outside the threaded tube. The first sealing bearing is located below the cavity, and the second sealing bearing is located above the cavity. A second sealing groove is provided at the top end of the threaded tube.
[0007] The filter assembly includes a filter element body with two limiting strips connected to the outside. The filter element body is connected to a first sealing ring and a second sealing ring. The first sealing ring is located above the second sealing ring and is inserted into a first sealing groove. The second sealing ring is inserted into the second sealing groove. The filter element body is inserted into a placement hole, and the bottom end of the filter element body is threaded into a threaded tube.
[0008] In a further technical solution, a water inlet pipe is connected to one side of the outer casing, and the bottom of the outer casing is connected to a drain casing through several connecting pipes.
[0009] In a further technical solution, a cavity is provided at the bottom of the outer shell, and both the first gear and the second gear are located in the cavity.
[0010] In a further technical solution, the upper surface of the limiting plate is provided with a plurality of first sealing grooves, each of which corresponds to a placement hole.
[0011] In a further technical solution, the outer shell is connected to the water inlet pipe, the outer shell is connected to the through hole, the outer shell is connected to the threaded pipe, and the threaded pipe is connected to the drain shell through the connecting pipe.
[0012] In a further technical solution, the first gear and the second gear are disposed between the first sealed bearing and the second sealed bearing.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model offers convenient and efficient replacement: through the cooperation of a motor, a first gear, a second gear, and a threaded tube, multiple filter element bodies can be driven to rise and fall simultaneously. During disassembly, the motor drives the first gear to rotate, and the threaded tube reverses to move the filter element body upward and disengage. During installation, the motor reverses to screw the filter element body into the threaded tube and move it downward to seal it. There is no need to manually reverse each one, which greatly simplifies the operation, improves replacement efficiency, and saves manpower and time.
[0015] This utility model provides a reliable and stable seal: the first sealing ring and the first sealing groove, and the second sealing ring and the second sealing groove cooperate to seal the gaps between the filter element body and the partition plate, and between the threaded tube and the filter element body, respectively. Compared with the problem of poor sealing that is easy to occur in traditional threaded connections, the double sealing structure effectively prevents water leakage, ensures the stability of the water treatment process, and improves the water purification effect.
[0016] This utility model ensures smooth and stable operation: the limiting strip outside the filter element body cooperates with the limiting groove inside the placement hole to limit the filter element body. During the replacement process, the filter element body rises and falls smoothly along the axis and will not rotate due to the rotation of the threaded tube, thus avoiding component wear, ensuring long-term stable operation of the device, and reducing the probability of failure and maintenance costs.
[0017] This utility model has a reasonable structural design: the purification shell, drive component, and filter component are scientifically arranged. Water enters the shell through the inlet pipe, flows through the through hole, filter element body, threaded pipe, and connecting pipe to the drain shell, and flows out. The water flow path is clear, and the filter element is in full contact with the water flow, improving filtration efficiency. The components work together to realize convenient filter element replacement and stable water treatment function, adapting to the needs of different water treatment scenarios.
[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;
[0020] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;
[0021] Figure 3 This is a top-view three-dimensional cross-sectional structural diagram of the present invention;
[0022] Figure 4 This is a top-view three-dimensional cross-sectional structural diagram of the outer shell of this utility model;
[0023] Figure 5 This is a partial three-dimensional cross-sectional structural diagram of the outer shell of this utility model;
[0024] Figure 6 This is a three-dimensional structural diagram of the first gear of this utility model;
[0025] Figure 7 This is a three-dimensional structural diagram of the filter element body of this utility model.
[0026] In the diagram: 1. Purification shell; 11. Outer shell; 12. Water inlet pipe; 13. Limiting plate; 14. Through hole; 15. Connecting pipe; 16. Drain shell; 17. Cavity; 18. Placement hole; 19. Limiting groove; 110. First sealing groove; 2. Drive assembly; 21. Motor; 22. First gear; 23. Second gear; 24. Threaded pipe; 25. First sealed bearing; 26. Second sealed bearing; 27. Second sealing groove; 3. Filter assembly; 31. Filter element body; 32. Limiting strip; 33. First sealing ring; 34. Second sealing ring. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0029] like Figures 1-7As shown, this utility model embodiment provides a water treatment device that facilitates filter replacement, including a purification shell 1, a drive assembly 2, and a filter assembly 3. The purification shell 1 includes an outer shell 11, a limiting plate 13 connected inside the outer shell 11, a plurality of through holes 14 and a placement hole 18 opened inside the limiting plate 13, a plurality of limiting grooves 19 opened inside the placement hole 18, a water inlet pipe 12 connected to one side of the outer shell 11, a drain shell 16 connected to the bottom of the outer shell 11 through a plurality of connecting pipes 15, a cavity 17 opened at the bottom of the outer shell 11, the outer shell 11 is connected to the water inlet pipe 12, the outer shell 11 is connected to the through holes 14, the outer shell 11 is connected to the threaded pipe 24, and the threaded pipe 24 is connected to the drain shell 16 through the connecting pipes 15.
[0030] The drive assembly 2 includes a motor 21, which is connected to the lower surface of the housing 11. The output shaft of the motor 21 is fixedly connected to a first gear 22. The first gear 22 meshes with four second gears 23. The first gear 22 and the second gears 23 are both located in the cavity 17. Threaded tubes 24 are fixedly connected to the four second gears 23. A first sealing bearing 25 and a second sealing bearing 26 are fixedly connected to the outside of the threaded tubes 24. The first sealing bearing 25 is located below the cavity 17, and the second sealing bearing 26 is located above the cavity 17. A second sealing groove 27 is opened at the top of the threaded tube 24. The first gear 22 and the second gear 23 are located between the first sealing bearing 25 and the second sealing bearing 26.
[0031] The filter assembly 3 includes a filter element body 31, with two limiting strips 32 connected to the outside of the filter element body 31. The filter element body 31 is connected to a first sealing ring 33 and a second sealing ring 34. The first sealing ring 33 is located above the second sealing ring 34 and is inserted into a first sealing groove 110. The second sealing ring 34 is inserted into a second sealing groove 27. The filter element body 31 is inserted into a placement hole 18. The bottom end of the filter element body 31 is threadedly connected to a threaded tube 24. The upper surface of the limiting plate 13 has several first sealing grooves 110, each of which corresponds to a placement hole 18.
[0032] In this embodiment, the pressure sensor is installed at the bottom of the first sealing groove 110 and is connected to an external controller via a cable to detect the pressure of the first sealing ring 33 on the bottom of the first sealing groove 110.
[0033] Controller: A common microcontroller such as the STM32 series can be used, which is connected to the pressure sensor and motor 21 via cables. The pressure sensor converts the detected pressure signal into an electrical signal and transmits it to the controller. The controller's built-in program analyzes and judges the signal. When the detected pressure reaches the preset value, indicating that the filter element body 31 is installed in place and sealed well, it sends a control signal to the motor 21 to stop working.
[0034] Motor 21: Receives electrical signal commands from the controller and drives the first gear 22 to rotate forward or in reverse according to the commands;
[0035] When the filter element needs to be disassembled, open the top cover of the purification housing 1. The control motor 21 drives the first gear 22 to rotate forward in the cavity 17. The forward-rotating first gear 22 drives the four second gears 23 to rotate in reverse. The four rotating second gears 23 all drive the threaded tubes 24 to rotate in reverse in the first sealing bearing 25 and the second sealing bearing 26. Since the bottom of the filter element body 31 is threadedly connected to the threaded tubes 24, the four rotating threaded tubes 24 all drive the filter element body 31 to move upward. The four upward-moving filter element bodies 31 all drive the first sealing ring 33 and the second sealing ring 34 to move out of the first sealing groove 110 and the second sealing groove 27, respectively. At the same time, the four upward-moving filter element bodies 31 all move upward within the placement hole 18, and the four upward-moving filter element bodies 31 all drive the limiting strip 32 to move upward within the limiting groove 19. The limiting strip 32, which is slidably connected within the limiting groove 19, can limit the filter element body 31, making it difficult for the filter element body 31 to rotate under the action of the rotating threaded tube 24. This allows the filter element body 31 to move smoothly upward along the axial direction of the threaded tube 24 under the action of the rotating threaded tube 24, so that the bottom ends of the four filter element bodies 31 are moved out of the threaded tube 24. Then, by pulling the four filter element bodies 31 upward respectively, the disassembly can be completed.
[0036] Then, the four filter element bodies 31 to be replaced are moved into the four placement holes 18 respectively, and the limiting strips 32 connected to the outside of the filter element bodies 31 move into the limiting grooves 19. Under the action of their own gravity, the filter element bodies 31 contact the top of the threaded tubes 24. By pressing the four filter element bodies 31 simultaneously with the palm, the motor 21 is controlled to drive the first gear 22 to reverse in the control. The reverse first gear 22 drives the four threaded tubes 24 to rotate forward through the four second gears 23. The four filter element bodies 31 are simultaneously screwed into the four threaded tubes 24, and the rotating threaded tubes 24 drive the filter element bodies 31 to move downward. The downward movement of the filter element bodies 31 drives the first sealing ring 33 and the second sealing ring 34 to rotate forward. The sealing rings 34 move into the first sealing groove 110 and the second sealing groove 27 respectively. When the bottoms of the first sealing rings 33 and 34 contact the bottoms of the first sealing groove 110 and the second sealing groove 27, a pressure sensor is installed at the bottom of the first sealing groove 110. After the pressure sensor detects the pressure, it is transmitted to the external controller through a cable. Since the controller is connected to the motor 21 through a cable, the controller controls the motor 21 to stop working. At this time, the four filter element bodies 31 can be installed. The operation is convenient, allowing operators to quickly disassemble and assemble multiple filter element bodies 31, making it easy to replace the filter element bodies 31.
[0037] Furthermore, the first sealing ring 33 and the first sealing groove 110 cooperate with each other to seal the gap between the filter element body 31 and the partition plate;
[0038] The second sealing ring 34 and the second sealing groove 27 cooperate with each other to seal the gap between the threaded tube 24 and the filter element body 31;
[0039] When the device is in use, water flows into the housing 11 through the upper water inlet pipe 12 and falls onto the partition plate. Then the water moves through the four through holes 14 to the bottom of the housing 11, and the water level at the bottom of the housing 11 rises. Then the water moves through the filter element body 31 to the middle part of the filter element body 31. Then the filtered and purified water moves through the threaded pipe 24 and the connecting pipe 15 to the drain shell 16 and flows out through the drain shell 16.
[0040] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water treatment device with easy filter replacement, comprising a purification housing (1), a drive assembly (2), and a filter assembly (3), characterized in that: The purification shell (1) includes an outer shell (11), a limiting plate (13) is connected inside the outer shell (11), the limiting plate (13) has a plurality of through holes (14) and a placement hole (18) inside, and the placement hole (18) has a plurality of limiting grooves (19). The drive assembly (2) includes a motor (21), which is connected to the lower surface of the housing (11). The output shaft of the motor (21) is fixedly connected to a first gear (22). The first gear (22) meshes with four second gears (23). Each of the four second gears (23) is fixedly connected with a threaded tube (24). A first sealing bearing (25) and a second sealing bearing (26) are fixedly connected to the outside of the threaded tube (24). The first sealing bearing (25) is located below the cavity (17), and the second sealing bearing (26) is located above the cavity (17). A second sealing groove (27) is opened at the top of the threaded tube (24). The filter assembly (3) includes a filter element body (31), which is externally connected to two limiting strips (32). The filter element body (31) is connected to a first sealing ring (33) and a second sealing ring (34). The first sealing ring (33) is located above the second sealing ring (34). The first sealing ring (33) is inserted into a first sealing groove (110), and the second sealing ring (34) is inserted into a second sealing groove (27). The filter element body (31) is inserted into a placement hole (18), and the bottom end of the filter element body (31) is threaded into a threaded tube (24).
2. The water treatment device for easy filter replacement according to claim 1, characterized in that: A water inlet pipe (12) is connected to one side of the outer shell (11), and the bottom of the outer shell (11) is connected to the drain shell (16) through several connecting pipes (15).
3. The water treatment device for easy filter replacement according to claim 1, characterized in that: A cavity (17) is provided below the outer shell (11), and the first gear (22) and the second gear (23) are both located in the cavity (17).
4. The water treatment device for easy filter replacement according to claim 1, characterized in that: The upper surface of the limiting plate (13) is provided with a plurality of first sealing grooves (110), and the plurality of first sealing grooves (110) are all corresponding to the placement hole (18).
5. The water treatment device for easy filter replacement according to claim 2, characterized in that: The outer shell (11) is connected to the water inlet pipe (12), the outer shell (11) is connected to the through hole (14), the outer shell (11) is connected to the threaded pipe (24), and the threaded pipe (24) is connected to the drain shell (16) through the connecting pipe (15).
6. The water treatment device for easy filter replacement according to claim 1, characterized in that: The first gear (22) and the second gear (23) are located between the first sealed bearing (25) and the second sealed bearing (26).