Modular assembled water purifier
By using quick-assembly components and a sealed structure, the problems of complicated connection and difficult disassembly of modular water purification devices are solved, enabling rapid assembly and convenient maintenance, and improving the practicality and water flow stability of the water purification device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA LONGXIN WATER PURIFYING TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-23
AI Technical Summary
Existing modular water purification devices have cumbersome connection methods and are not easy to disassemble, which is inefficient, especially in scenarios requiring rapid deployment and convenient maintenance. Welding methods sacrifice the flexibility of modularity and make it difficult to disassemble and maintain without damage.
It adopts quick-installation components, including insert rods, sliding plates, connecting rods and locking blocks, to achieve tool-free quick connection and separation between modules. Combined with a sealing structure and pull-out mechanism, it simplifies the assembly and disassembly process.
It improves the assembly efficiency and convenience of water purification devices, simplifies the modular disassembly and maintenance process, and ensures the stability and sealing of water flow.
Smart Images

Figure CN224388216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification device technology, and in particular to a modular assembled water purification device. Background Technology
[0002] With social development and increasing environmental protection requirements, water purification devices are being used more and more widely in industrial production, municipal water supply, and household life. To adapt to the needs of different water qualities, treatment capacities, and application scenarios, a modular design concept has been introduced into the development of water purification devices. By designing pretreatment, main filtration, and deep purification units as independent, standardized modules, they can be flexibly combined according to actual needs, enabling rapid customization, tiered maintenance, and future functional expansion of the device, greatly improving the system's applicability and economy.
[0003] Currently, in the actual assembly process of modular water purification devices, the connection and fixation between various functional modules (usually manifested as independent shells or boxes) generally adopts traditional and mature mechanical connection methods. The most common method is flange bolt connection, that is, flanges with multiple bolt holes are pre-machined on the mating edges of each module. During assembly, the flange faces of two modules are aligned, and then high-strength bolts are inserted one by one, and nuts are tightened from the other side to fix it. In some large or permanent devices with extremely high requirements for structural strength and sealing, welding is even used to directly weld the metal shells of adjacent modules to form a rigid whole. These connection methods rely on standardized fasteners and mature industrial operating procedures, aiming to ensure the reliability of the connection and the stability of the structure.
[0004] However, the inherent drawbacks of the aforementioned traditional assembly methods are becoming increasingly prominent in modern application scenarios that prioritize rapid deployment and convenient maintenance. Taking bolted connections as an example, this process is not only cumbersome and time-consuming but also labor-intensive. On-site installers need to carry wrenches and other tools to align and tighten dozens of bolt holes one by one. This is particularly difficult when space is limited or the modules are heavy, severely impacting installation efficiency. While welding offers high connection strength, it completely sacrifices modular flexibility. Once welded shut, the device cannot be disassembled without damage, making subsequent internal maintenance, filter replacement, or module reassembly extremely difficult, sometimes even requiring destructive cutting. This contradicts the original intention of modular design. Therefore, a modular prefabricated water purification device is proposed to address these issues. Summary of the Invention
[0005] To overcome the above shortcomings, this utility model provides a modular assembled water purification device, which aims to improve the problem that the assembly method of existing water purification devices is relatively cumbersome and inconvenient to assemble.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular assembled water purification device, including a support frame, on which a water inlet bucket is fixedly connected, and on which a housing first, a housing second, and a housing third are stacked in sequence, and a top cover is provided on the top of the housing third, and a water inlet pipe is fixedly connected to the top cover;
[0007] Quick-installation assemblies are provided between adjacent joint surfaces of the water inlet, shell 1, shell 2, shell 3, and top cover. Each quick-installation assembly includes: a rod vertically fixed to the flange of the upper module; an insertion hole on the flange of the lower module, the position of which corresponds to the rod; a sliding plate slidably disposed in the inner cavity of the rod; a connecting rod passing through the top of the rod and fixed to the sliding plate at its lower end, the upper end of which extends out of the rod and is fixed to the connecting plate; a spring sleeved on the connecting rod, the two ends of which respectively abut against the inner top wall of the rod and the upper surface of the sliding plate; two connecting rods symmetrically hinged to the bottom of the sliding plate; a locking block hinged to the outer end of each connecting rod; and a hinge block fixed to the bottom of the rod, the locking block being rotatably connected to the hinge block. When the rod is inserted into the insertion hole, the locking block is squeezed inward by the inner wall of the insertion hole, and after passing through the insertion hole, it is pushed outward by the spring to lock the bottom surface of the lower module.
[0008] As a further description of the above technical solution: the inner wall of the second housing is provided with a symmetrical connecting plate two, and the inner walls of the first housing and the third housing are provided with sealing blocks at corresponding positions; the mating surfaces of the connecting plate two and the sealing block form a sealing structure.
[0009] As a further description of the above technical solution: each of the three housings is provided with a filter box, and the filter mesh diameter of the three filter boxes decreases from top to bottom.
[0010] As a further description of the above technical solution: the filter box is movably connected to housing one / housing two / housing three via a pull-out mechanism. The pull-out mechanism includes a limiting rod one fixed to the inner wall of housing one / housing two / housing three and a limiting rod two located below it. A Z-shaped plate is slidably provided between the limiting rod one and the limiting rod two. A spring two is sleeved on the limiting rod two, one end of which abuts against the inner wall of housing three, and the other end abuts against the Z-shaped plate. When the filter box is pushed in, its inner bottom surface is supported on the horizontal support part of the Z-shaped plate, and its inner side surface abuts against the vertical abutting part of the Z-shaped plate. The Z-shaped plate compresses the spring two. A locking mechanism is provided between the outer wall of the filter box and the outer wall of housing one / housing two / housing three.
[0011] As a further description of the above technical solution: the locking mechanism includes a slot provided on the outer wall of the filter box; the outer walls of housing one / housing two / housing three are provided with pluggable pins at corresponding positions, which engage with the slot to lock the filter box when inserted.
[0012] As a further description of the above technical solution: a handle is fixedly attached to the outside of the filter box.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, when the housing 1, housing 2, and housing 3 are connected and installed, after the insert rod inside the housing passes through the insertion hole, the reaction force of the spring 1 pushes the sliding plate to slide. The sliding plate drives the connecting rod to rotate, thereby achieving the effect of driving the locking block to rotate on the hinge block side, so that the locking block extends out of the insert rod, thereby achieving the effect of locking onto the bottom surface of the lower module for quick installation. This solves the problem that the traditional device uses bolts or welding to assemble the housing, which is inconvenient to assemble, and thus improves the practicality of the device.
[0015] 2. In this utility model, after the filter boxes inside the first, second, and third housings have been used for a long time, the plug can be pulled out of the slot. At this time, the second spring loses pressure, thereby achieving the effect of pushing the Z-shaped plate to slide on the outer wall of the first and second limiting rods. Through the sliding of the Z-shaped plate, the filter box can be quickly pushed out of the first, second, and third housings for disassembly and cleaning. This solves the problem that the traditional device requires the operator to pull out the filter plate, which leads to a decrease in cleaning efficiency, and thus improves the practicality of the device. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a modular assembled water purification device proposed in this utility model.
[0017] Figure 2 This is a schematic diagram of a portion of the shell structure of a modular assembled water purification device proposed in this utility model.
[0018] Figure 3 for Figure 2 Enlarged view of point A in the image.
[0019] Figure 4 This is a schematic diagram showing the disassembled modular assembled water purification device proposed in this utility model.
[0020] Figure 5 This is a schematic diagram of the sealing block structure of a modular assembled water purification device proposed in this utility model.
[0021] Figure 6 This is a schematic diagram of the filter box structure of a modular assembled water purification device proposed in this utility model.
[0022] Legend:
[0023] 1. Bracket; 2. Water inlet hopper; 3. Shell 1; 4. Shell 2; 5. Shell 3; 6. Top cover; 7. Water inlet pipe; 8. Insert rod; 9. Sliding plate; 10. Connecting rod; 11. Connecting plate 1; 12. Spring 1; 13. Connecting rod; 14. Locking block; 15. Hinge block; 16. Connecting plate 2; 17. Limiting rod 1; 18. Limiting rod 2; 19. Spring 2; 20. Z-shaped plate; 21. Filter box; 22. Handle; 23. Pin; 24. Slot; 25. Sealing block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1-6 This utility model provides an embodiment of a modular assembled water purification device, including a support 1. A water inlet 2 is fixedly connected to the support 1 for collecting and discharging purified water. The water inlet 2 is equipped with three shells, namely, a first shell 3, a second shell 4, and a third shell 5, installed sequentially from bottom to top. These shells can accommodate filter materials with different functions to achieve graded purification. A top cover 6 is provided on the upper surface of the third shell 5 to seal the top of the device. A water inlet pipe 7 is fixedly connected to the upper surface of the top cover 6, serving as the entry channel for the raw water to be treated.
[0026] Quick-connect components are provided between the water inlet hopper 2, shell 1 3, shell 2 4, shell 3 5, and top cover 6 to enable tool-free quick connection and separation between the modules. The quick-connect components include a plug rod 8, which is vertically fixed to the flange edge of the upper module and serves as the connecting protrusion of the upper module. A sliding plate 9 is slidably connected inside the plug rod 8, serving as the core linkage component for driving the locking mechanism. A connecting rod 10 is fixedly connected to the upper surface of the sliding plate 9, penetrating the interior of the plug rod 8. A connecting plate 11 is fixedly connected to the upper end of the connecting rod 10, allowing the operator to manually pull it to unlock. A spring 12 is sleeved on the connecting rod 10, providing power for the automatic reset of the locking mechanism. The two ends of the spring 12 abut against the inner top wall of the plug rod 8 and the upper surface of the sliding plate 9, respectively. This arrangement allows the spring to continuously apply a downward pushing force to the sliding plate 9 to maintain the locked state. The bottom of the sliding plate 9 is rotatably connected to symmetrical connecting rods 13, which are used to convert the linear motion of the sliding plate 9 into the swing motion of the locking block 14. The outer ends of the two connecting rods 13 are rotatably connected to the locking block 14, which is the key component for finally performing the locking function. The bottom of the insert rod 8 is fixedly connected to the hinge block 15 near the locking block 14, which provides a fixed fulcrum for the swing of the locking block 14. The locking block 14 and the hinge block 15 are rotatably connected, thus forming a controllable linkage mechanism to realize the extension and retraction of the locking block 14.
[0027] Specifically, during installation, for example, when housing 3 (5) is aligned with the mounting opening of housing 2 (4) and pressed downwards, the insertion rod 8 at the bottom of housing 3 (5) will insert into the insertion hole on housing 2 (4). During insertion, the inner wall of the insertion hole forces the locking block 14 to retract inwards. The locking block 14, through the connecting rod 13, drives the sliding plate 9 to move upwards against the elastic force of spring 12. When the insertion rod 8 is fully inserted, the reaction force of spring 12 immediately pushes the sliding plate 9 back to its original position and downwards. This, in turn, drives the locking block 14 to swing outwards through the connecting rod 13 and lock it onto the bottom surface of the flange of the lower module to complete the connection. This design solves the problem of cumbersome assembly and inconvenient disassembly and maintenance caused by the use of bolts or welding in traditional devices, greatly improving the practicality and convenience of the device.
[0028] Reference Figures 1-6 The inner wall of shell 2 4 is fixedly connected with connecting plates 2 16 arranged symmetrically on the upper and lower sides, which serve as positioning and sealing bases for docking with adjacent shells; the inner walls of shell 1 3 and shell 3 5 are both fixedly connected with sealing blocks 25 near the connecting plates 2 16, which are used to cooperate with the connecting plates 2 16; the connecting plates 2 16 and the sealing blocks 25 are interlocked with each other, and this interlocking structure forms an effective radial seal after the module is assembled, preventing water leakage between shells and ensuring that water must pass through the filter medium.
[0029] Each of the three housings (3, 4, and 5) contains an independently replaceable filter box 21, with the filter mesh size decreasing from top to bottom. To facilitate the installation of the filter box 21, a limiting rod 17 is fixedly connected to the inner wall of the housing, and a limiting rod 28 is fixedly connected to the lower side of the inner wall near the limiting rod 17. These two limiting rods together form a guide rail for guiding the precise insertion and removal of the filter box 21. A handle 22 is fixedly connected to one side of the outer wall of the filter box 21, allowing the user to easily remove it by hand for maintenance or replacement. To ensure the stability of the filter box 21 inside, a spring 2 19, serving as an elastic pressure element, is fitted on the outer wall of the limiting rod 2 18 near the inner wall of the housing 3 5. A Z-shaped plate 20 is slidably connected between the limiting rod 1 17 and the limiting rod 2 18 to evenly transmit the spring pressure to the filter box 21. The filter box 21 is positioned between the limiting rod 1 17 and the limiting rod 2 18, thus constraining its movement trajectory. One side of the filter box 21 abuts against the outer wall of the Z-shaped plate 20 to receive continuous thrust from the Z-shaped plate 20. To prevent the filter box 21 from accidentally sliding out, a pin 23 is fixedly connected to the outer wall of the housing 3 5 near the handle 22. A slot 24 that engages with the pin 23 is fixedly connected to the outer wall of the filter box 21. This structure is used to reliably lock the filter box 21 in the working position. One end of the spring 2 19 abuts against the inner wall of the housing, and the other end abuts against the vertical abutment part of the Z-shaped plate 20, thereby continuously pushing the Z-shaped plate 20 to apply pressure to the filter box 21, ensuring its tight positioning.
[0030] Specifically, when the filter box 21 is pushed into the housing via the handle 22, its inner bottom surface is supported on the horizontal support of the Z-shaped plate 20, sliding along the guide rail formed by the first limiting rod 17 and the second limiting rod 18. Upon being pushed into place, the second spring 19 on one side of the Z-shaped plate 20 is compressed. After the filter box 21 is fully pushed in, its external slot 24 aligns and engages with the pin 23 on the outside of the housing, achieving position locking. At this time, the compressed spring 19 applies a continuous pushing force to the filter box 21 through the Z-shaped plate 20, ensuring it fits tightly against the inside of the housing, effectively preventing vibration or displacement that may be caused by water flow impact, thus ensuring the stability of the filtration process and internal sealing. When replacement is needed, simply release the pin 23, and the old filter box 21 can be easily pulled out via the handle 22.
[0031] Working principle: When assembling this water purification device, firstly, assemble and install housing 3, housing 4, housing 5, and top cover 6 from bottom to top. Then, insert the upper module's insertion rod 8 into the lower module's insertion hole. When the locking block 14 contacts the inner wall of the insertion hole, it retracts into the insertion rod 8. The insertion rod 8 drives the locking block 14 through the insertion hole. Then, the reaction force of spring 12 causes the sliding plate 9 to descend. The movement of the sliding plate 9 then drives the connecting rod 13, causing the locking block 14 to engage with the bottom surface of the lower module's flange. Repeating the above operations for the installation of housing 5, housing 4, and housing 3 achieves rapid assembly. For disassembly, pull the connecting plate 11 to... The connecting rod 10 drives the spring 12 to retract, thereby driving the lower connecting rod 13 of the sliding plate 9 to rotate, so that the locking block 14 retracts into the insertion rod 8 to achieve the effect of quick disassembly; the aperture of the filter box 21 inside the housing 3, housing 2, and housing 3 is set from large to small from top to bottom, thereby achieving the effect of efficient water filtration; when the filter box 21 has been used for a long time, by pulling the pin 23 out of the slot 24, the reaction force of the spring 2 19 pushes the Z-shaped plate 20 to slide on the outer wall of the limiting rod 1 17 and the limiting rod 2 18. Then, through the movement of the Z-shaped plate 20, the filter box 21 is pushed out of the housing for quick disassembly and cleaning.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 modular assembled water purification device, comprising a support frame (1), characterized in that: A water inlet bucket (2) is fixedly connected to the bracket (1). A first shell (3), a second shell (4), and a third shell (5) are stacked on the water inlet bucket (2). A top cover (6) is provided on the top of the third shell (5). A water inlet pipe (7) is fixedly connected to the top cover (6). Quick-connect assemblies are provided between the adjacent mating surfaces of the water inlet (2), shell one (3), shell two (4), shell three (5) and top cover (6). The quick-connect assemblies include: a rod (8) vertically fixed to the flange of the upper module; a hole on the flange of the lower module, the position of which corresponds to the rod (8); a sliding plate (9) slidably disposed in the inner cavity of the rod (8); a connecting rod (10) penetrating the top of the rod (8) and fixed to the sliding plate (9) at its lower end, the upper end of which extends out of the rod (8) and is fixed to the connecting plate one (11); and a sleeve on the connecting rod. (10) Spring 1 (12) has its two ends abutting against the inner top wall of the insertion rod (8) and the upper surface of the sliding plate (9) respectively; two connecting rods (13) are symmetrically hinged to the bottom of the sliding plate (9); a locking block (14) is hinged to the outer end of each connecting rod (13); a hinge block (15) is fixed to the bottom of the insertion rod (8), and the locking block (14) is rotatably connected to the hinge block (15); wherein, when the insertion rod (8) is inserted into the insertion hole, the locking block (14) is squeezed inward by the inner wall of the insertion hole, and after passing through the insertion hole, it is pushed outward by spring 1 (12) to lock the bottom surface of the lower module.
2. The modular assembled water purification device according to claim 1, characterized in that: The inner wall of the second shell (4) is provided with a symmetrical connecting plate (16), and the inner walls of the first shell (3) and the third shell (5) are provided with sealing blocks (25) at corresponding positions; the mating surfaces of the connecting plate (16) and the sealing block (25) form a sealing structure.
3. The modular assembled water purification device according to claim 1, characterized in that: Each of the three housings (3), (4), and (5) is provided with a filter box (21), and the filter mesh size of the filter box (21) decreases from top to bottom.
4. A modular assembled water purification device according to claim 3, characterized in that: The filter box (21) is movably connected to housing one (3) / housing two (4) / housing three (5) via a pull-out mechanism. The pull-out mechanism includes a limiting rod one (17) fixed to the inner wall of housing one (3) / housing two (4) / housing three (5) and a limiting rod two (18) located below it. A Z-shaped plate (20) is slidably provided between the limiting rod one (17) and the limiting rod two (18). A spring two (20) is sleeved on the limiting rod two (18). 19), one end of which abuts against the inner wall of housing three (5), and the other end abuts against the Z-shaped plate (20); wherein, when the filter box (21) is pushed in, its inner bottom surface is supported on the horizontal support part of the Z-shaped plate (20), and the inner side abuts against the vertical abutting part of the Z-shaped plate (20), the Z-shaped plate (20) compresses the spring two (19), and a locking mechanism is provided between the outer wall of the filter box (21) and the outer walls of housing one (3) / housing two (4) / housing three (5).
5. A modular assembled water purification device according to claim 4, characterized in that: The locking mechanism includes a slot (24) on the outer wall of the filter box (21); the outer walls of the first housing (3) / second housing (4) / third housing (5) are provided with pluggable pins (23) that engage with the slot (24) to lock the filter box (21) when inserted.
6. A modular assembled water purification device according to claim 4, characterized in that: The filter box (21) is fixed to the outside of the handle (22).