Multi-layer composite filter element filtering device for purifying tap water
By using a motor-driven transmission gear system and a limit block design, the multi-layer composite filter element in the tap water purification device can be quickly installed and disassembled, solving the cumbersome maintenance problems in the existing technology and improving maintenance efficiency and user experience.
Patent Information
- Application Number
- CN202520067225.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In existing tap water purification devices, the maintenance process of multi-layer composite filter cartridges is cumbersome, requiring the unscrewing of multiple mounting sleeves one by one, which affects maintenance efficiency and user experience.
The system employs a motor-driven transmission gear system, which drives multiple sets of gear rings to rotate synchronously via a transmission belt, enabling the simultaneous installation or removal of multiple filter chambers. The design of limit blocks and clamping blocks simplifies the operation process.
It improves the efficiency of filter chamber installation and disassembly, simplifies operation steps, and enhances user experience and maintenance efficiency.
Smart Images

Figure CN223766138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tap water purification and filtration technology, and in particular to a multi-layer composite filter cartridge filtration device for tap water purification. Background Technology
[0002] In the field of tap water purification, multi-layer composite filter cartridges have become the mainstream in order to meet increasingly stringent water quality requirements. These cartridges employ a progressively evolving filtration method. First, a coarse filtration layer removes large particles and suspended solids from the water. Then, a medium filtration layer, such as activated carbon or KDF, adsorbs residual chlorine, organic matter, and some heavy metals from the water. Finally, a precision filtration layer, such as an ultrafiltration membrane or reverse osmosis membrane, deeply removes bacteria, viruses, fine particles, and dissolved solids from the water, thereby achieving comprehensive and efficient purification of tap water. However, after prolonged use, the filter pores can become clogged by impurities in the tap water, affecting the filtration effect. Therefore, the filter cartridges need to be replaced frequently.
[0003] As disclosed in the utility model with authorization announcement number CN221797067U, a tap water filtration device "includes a filtration device and further includes: a filtration mechanism, which is disposed on the inner wall of the filtration device and can filter tap water through the filtration mechanism; and an installation mechanism, which is disposed on the inner wall of the filtration device and allows the filtration mechanism to be detachably installed on the inner wall of the filtration device. This utility model relates to the field of filtration technology. This utility model is provided with an installation component. The upper end of the device body is detachably connected to a cover plate. The cover plate can be separated from the device body simply by loosening the bolts fixing the cover plate on both sides. At this time, the pipe can be separated by tightening the installation sleeve at the upper end of the filter chamber to be disassembled. The filter chamber can then be easily removed from the slot inside the device body, making the filter chamber easy to install and disassemble. This utility model is more convenient to use and has higher economic benefits."
[0004] In the above-mentioned device, each filter chamber is equipped with an installation sleeve at the top. The filter chamber can be disassembled and installed by loosening or tightening these installation sleeves. However, each filter chamber is equipped with two sets of installation sleeves between itself and the pipeline. The number of installation sleeves is large, and the operation of tightening them one by one is tedious and time-consuming, which affects maintenance efficiency and user experience. Therefore, we propose a multi-layer composite filter cartridge filtration device for tap water purification. Utility Model Content
[0005] The main objective of this invention is to provide a multi-layer composite filter cartridge for purifying tap water, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A multi-layer composite filter cartridge device for tap water purification includes a housing. Two sets of sliders are slidably connected to the inner wall of the housing. Three sets of first clamping blocks are disposed inside the housing, with one end of two sets of the first clamping blocks fixedly connected to the inner wall of the sliders. Two sets of springs are fixedly installed on the bottom wall of the housing. Support plates are fixedly installed at the front ends of both sets of springs. A connecting block is movably connected to the top of the support plate, and the inner wall of the connecting block is fixedly connected to the outer surface of the first clamping block. Two sets of limiting blocks are movably connected to the inner wall of the first clamping block. The two sets of limiting blocks are... A filter chamber is fixedly connected to the front of the filter chamber. Two sets of fixed blocks are fixedly installed on the top of the filter chamber. The inner walls of the two sets of fixed blocks are threaded with movable blocks. A gear ring is fixedly installed at the front end of the movable block. A bearing is fixedly installed on the inner wall of the movable block. An inlet pipe is fixedly installed on the inner wall of the filter chamber. An outlet pipe is fixedly installed on the inner wall of the filter chamber. Two sets of central pipes are fixedly installed on the inner wall of the filter chamber. A mounting shell is movably connected to the front of the filter chamber. Multiple sets of second clamping blocks are slidably engaged with the inner wall of the mounting shell. The second clamping blocks are movably connected to the outer surface of the filter chamber.
[0008] Preferably, two sets of dampers are fixedly installed on the bottom wall of the box, and the front end of the damper is fixedly connected to the bottom of the support plate.
[0009] Preferably, multiple sets of limiting plates are fixedly installed at the bottom of the mounting shell, and the limiting plates are slidably connected to the inner wall of the housing.
[0010] Preferably, a top cover is fixedly installed on the top of the box, and the front end of the water inlet pipe and the front end of the water outlet pipe respectively extend to the outside of the top cover.
[0011] Preferably, a motor is fixedly installed on the top of the housing, and the output end of the motor is fixedly connected to the outer surface of the transmission gear, and a transmission belt is movably connected to the outer surface of the transmission gear.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, by controlling the motor to be energized, the transmission gears rotate, and under the linkage of the transmission belt, multiple sets of gear rings rotate synchronously, thereby causing several sets of movable blocks to rotate synchronously. This achieves the purpose of controlling multiple sets of fixed blocks and filter chambers to move upward or downward simultaneously, allowing the ends of each pipe to be inserted into or detached from the filter chamber at the same time. There is no need to manually twist multiple parts to install or disassemble the filter chamber, making the operation simple and time-saving, thereby improving maintenance efficiency and user experience. By setting limit blocks, first clamping blocks and second clamping blocks, the filter chamber can be supported and limited and fixed, thereby improving the stability of the filter chamber movement. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of a multi-layer composite filter cartridge filtration device for purifying tap water according to the present invention.
[0015] Figure 2 This is a cross-sectional view of the internal structure of the filter chamber of a multi-layer composite filter cartridge filtration device for purifying tap water, after disassembly.
[0016] Figure 3 This is a schematic diagram of the mounting shell structure of a multi-layer composite filter cartridge filtration device for purifying tap water according to this utility model.
[0017] Figure 4 This utility model relates to a multi-layer composite filter cartridge filtration device for purifying tap water. Figure 2 Enlarged view of region A in the middle;
[0018] Figure 5 This is a cross-sectional view of the internal structure of the filter chamber of a multi-layer composite filter cartridge filtration device for purifying tap water according to this utility model.
[0019] Figure 6 This is a structurally exploded view of the transmission gear and gear ring of a multi-layer composite filter cartridge filtration device for purifying tap water according to this utility model.
[0020] Figure 7 This is a schematic diagram of the movable block and fixed block structure of a multi-layer composite filter cartridge filtration device for purifying tap water according to this utility model.
[0021] Figure 8 This is a cross-sectional view of the internal structure of the filter chamber of a multi-layer composite filter cartridge filtration device for tap water purification after installation.
[0022] In the diagram: 1. Housing; 2. Top cover; 3. Mounting shell; 4. Transmission gear; 5. Inlet pipe; 6. Outlet pipe; 7. Central pipe; 8. Slider; 9. Damper; 10. Spring; 11. Movable block; 12. Motor; 13. Limiting plate; 14. Support plate; 15. Connecting block; 16. Filter chamber; 17. Limiting block; 18. Fixing block; 19. Gear ring; 20. Transmission belt; 21. Bearing; 22. First clamping block; 23. Second clamping block. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Example 1:
[0025] like Figure 1-8As shown, a multi-layer composite filter cartridge device for tap water purification includes a housing 1. Two sets of sliders 8 are slidably connected to the inner wall of the housing 1. Three sets of first clamping blocks 22 are arranged inside the housing 1, and one end of two sets of the three sets of first clamping blocks 22 is fixedly connected to the inner wall of the sliders 8. Two sets of springs 10 are fixedly installed on the bottom wall of the housing 1. Support plates 14 are fixedly installed at the front ends of the two sets of springs 10. Connecting blocks 15 are movably connected to the top of the support plates 14, and the inner wall of the connecting blocks 15 is fixedly connected to the outer surface of the first clamping blocks 22. The three sets of first clamping blocks 22 are connected together by the two sets of connecting blocks 15 and movably connected to the inner wall of the housing 1 by the two sets of sliders 8. The wall is movably connected to two sets of limiting blocks 17. Filter chambers 16 are fixedly connected to the opposing surfaces of the two sets of limiting blocks 17. There are three sets of filter chambers 16. The first set contains a filter element for filtering large particles. The second set contains a filter element for adsorbing residual chlorine, organic matter, and heavy metals in the water. The third set contains a filter element for filtering bacteria and viruses in the water. Two sets of fixing blocks 18 are fixedly installed on the top of the filter chambers 16. Movable blocks 11 are threadedly connected to the inner walls of both sets of fixing blocks 18. A gear ring 19 is fixedly installed at the front end of each movable block 11, and a bearing 21 is fixedly installed on the inner wall of each movable block 11. An inlet pipe 5 is fixedly installed on the inner wall of the housing 1. A water outlet pipe 6 is fixedly installed on the inner wall of body 1. Two sets of central pipes 7 are fixedly installed on the inner wall of body 1. The ends of the water inlet pipe 5, the water outlet pipe 6, and the central pipe 7 are respectively fixedly connected to the inner ring of the bearing 21 directly below them. The inner ring of the bearing 21 is fixedly connected to each pipe, and the outer ring is fixedly connected to the movable block 11, so that when the movable block 11 rotates, it will not drive the pipe to rotate. A mounting shell 3 is movably connected to the front of body 1. Multiple sets of second clamping blocks 23 are slidably engaged on the inner wall of the mounting shell 3. The second clamping blocks 23 are movably connected to the outer surface of the filter chamber 16. A limiting block 17 is movably connected to the inner wall of the second clamping block 23. When the first clamping block 22 and the second clamping block 23 are combined, half of the limiting block 17 is in the... Half of the filter chamber 16 is inside the clamping block 22 and half is inside the second clamping block 23, thus supporting and limiting the filter chamber 16, preventing the filter chamber 16 from rotating with the movable block 11. Then, under the action of thread engagement, the filter chamber 16 and the fixed block 18 move upward along the outer surface of the movable block 11. During the upward movement of the filter chamber 16, the ends of each pipe will gradually be inserted into the filter chamber 16, thereby achieving the purpose of installing several sets of filter chambers 16 at the same time. A waterproof strip is set at the connection between the filter chamber 16 and the pipe to prevent water leakage. By controlling the gear ring 19 to reverse, the filter chamber 16 can be moved downward until the fixed block 18 disengages from the movable block 11, so that several sets of filter chambers 16 can be quickly disassembled.
[0026] Two sets of dampers 9 are fixedly installed on the bottom wall of the housing 1, and the front end of the damper 9 is fixedly connected to the bottom of the support plate 14. The damper 9, spring 10 and support plate 14 cooperate to support the first clamping block 22. When the damper 9 and spring 10 are in their original state, the first clamping block 22 is just aligned with the second clamping block 23 in its initial position, so as to clamp the filter chamber 16. Multiple sets of limiting plates 13 are fixedly installed on the bottom of the mounting shell 3, and the limiting plates 13 are slidably connected to the inner wall of the housing 1. A top cover 2 is fixedly installed on the top of the housing 1, and the front end of the water inlet pipe 5 and the front end of the water outlet pipe 6 respectively pass through the top cover 2. On the outside; a motor 12 is fixedly installed on the top of the housing 1, and the output end of the motor 12 is fixedly connected to the outer surface of the transmission gear 4. A transmission belt 20 is movably connected to the outer surface of the transmission gear 4. The transmission gear 4 and several sets of gear rings 19 are all meshed with the inner wall of the transmission gear 4. When the motor 12 is powered on, its output end will drive the transmission gear 4 to rotate, and then under the transmission of the transmission belt 20, the several sets of gear rings 19 will rotate synchronously, thereby achieving the purpose of controlling the synchronous rotation of several sets of movable blocks 11, so that the three sets of filter chambers 16 can move up or down at the same time, thereby achieving the purpose of installing or removing the three sets of filter chambers 16 at the same time. The operation is simple and quick.
[0027] It should be noted that this utility model is a multi-layer composite filter cartridge filtration device for tap water purification. During installation, first press the first clamping block 22 downwards, then snap the three filter chambers 16 into the housing 1 respectively, so that the limiting block 17 is snapped into the first clamping block 22. Finally, release the first clamping block 22 to reset it and move the filter chambers 16 upwards. At this time, the fixing block 18 and the movable block 11 are initially connected. Install the mounting shell 3 on the housing 1, so that the second clamping block 23 is connected to the first clamping block. The 22 parts are spliced together to fix the filter chamber 16. Then, the motor 12 is energized, which makes multiple sets of movable blocks 11 rotate simultaneously, thereby moving several sets of filter chambers 16 upwards at the same time. As each pipe is gradually inserted into the filter chamber 16, the installation of several sets of filter chambers 16 is completed. Tap water enters the first set of filter chambers 16 through the inlet pipe 5. After being filtered by the filter element, the water pump on the first set of central pipes 7 will input the filtered water into the second set of filter chambers 16, where it will be filtered by the filter element. Then, the water pump on the second central pipe 7 will send water into the third set of filter chambers 16 for filtration. The filtered tap water is output through the outlet pipe 6. When the filter element needs to be replaced, the control motor 12 is energized. Under the action of gear transmission and thread engagement, the fixed block 18 drives the filter chamber 16 to move downward. Under the action of the limit block 17, the first clamping block 22, the second clamping block 23 and the slider 8 move downward synchronously until the fixed block 18 disengages from the movable block 11. At this time, the ends of each pipe also gradually move downward. After the filter chamber 16 detaches from the fixed block 18 and the movable block 11, the filter chamber 16, under the influence of gravity, causes the first clamping block 22 and the second clamping block 23 to slide down until they land on the support plate 14. Unscrew the screws connecting the housing 1 and the mounting shell 3, and then press down on the first clamping block 22 to completely detach the ports of each pipe from the fixed block 18. The filter chamber 16 can then be removed for easy replacement without manually unscrewing multiple sets of parts to disassemble the filter chamber 16. The operation is simple and convenient.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-layer composite filter cartridge filtering device for purifying tap water, comprising a box (1), characterized in that: The inner side wall of the box (1) is slidably connected with two groups of sliding blocks (8), the inside of the box (1) is provided with three groups of first clamping blocks (22), one end of two groups of the three groups of first clamping blocks (22) is fixedly connected to the inner wall of the sliding block (8), the bottom wall of the box (1) is fixedly installed with two groups of springs (10), the front end of the two groups of springs (10) is fixedly installed with a supporting plate (14), the top of the supporting plate (14) is movably connected with a connecting block (15), and the inner wall of the connecting block (15) is fixedly connected to the outer surface of the first clamping block (22), the inner wall of the first clamping block (22) is movably connected with two groups of limiting blocks (17), the opposite surfaces of the two groups of limiting blocks (17) are fixedly connected with a filter bin (16), the top of the filter bin (16) is fixedly installed with two groups of fixed blocks (18), the inner wall of the two groups of fixed blocks (18) is threadedly connected with a movable block (11), the front end of the movable block (11) is fixedly installed with a gear ring (19), the inner wall of the movable block (11) is fixedly installed with a bearing (21), the inner wall of the box (1) is fixedly installed with a water inlet pipe (5), the inner wall of the box (1) is fixedly installed with a water outlet pipe (6), the inner wall of the box (1) is fixedly installed with two groups of pivot pipes (7), the front surface of the box (1) is movably connected with a mounting shell (3), the inner wall of the mounting shell (3) is slidably connected with a plurality of second clamping blocks (23), and the second clamping block (23) is movably connected to the outer surface of the filter bin (16).
2. A multi-layered composite filter cartridge water purification device as claimed in claim 1, wherein: The bottom wall of the box (1) is fixedly installed with two groups of dampers (9), and the front end of the damper (9) is fixedly connected to the bottom of the supporting plate (14).
3. A multi-layered composite filter cartridge water purification device as claimed in claim 1, wherein: The bottom of the mounting shell (3) is fixedly installed with a plurality of limiting plates (13), and the limiting plate (13) is slidably connected to the inner wall of the box (1).
4. The multi-layered composite filter cartridge water purification device according to claim 1, wherein: The top of the box (1) is fixedly installed with a top cover (2), and the front end of the water inlet pipe (5) and the front end of the water outlet pipe (6) respectively penetrate to the outside of the top cover (2).
5. The multi-layered composite filter cartridge water purification device according to claim 1, wherein: The top of the box (1) is fixedly installed with a motor (12), and the output end of the motor (12) is fixedly connected to the outer surface of the transmission gear (4), and the outer surface of the transmission gear (4) is movably connected with a transmission belt (20).
Citation Information
Patent Citations
Tap water filtering device
CN221797067U