A filter device
The design, featuring a detachable housing structure and an independently encapsulated filter pump, solves the problem of inconvenient cleaning of existing filters, enabling rapid maintenance and efficient filtration, extending component lifespan, and making it suitable for mass production.
Patent Information
- Application Number
- CN202521945107.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-10
AI Technical Summary
The core components of existing filters, such as the filter pump and filter screen, are fixedly installed in a single housing, which makes cleaning and replacement inconvenient, operation complicated, and maintenance costly.
It adopts a detachable shell structure and connects with hooks and holes to achieve quick assembly and separation of the filter device. The filter pump is independently encapsulated to isolate the water environment, a second filter mechanism is added to cultivate nitrifying bacteria, and porous materials are provided for fine filtration.
It enables rapid cleaning and maintenance of the filtration device, reduces maintenance costs and time, extends the service life of core components, improves production efficiency and filtration effect, and protects the ecological environment of the aquarium.
Smart Images

Figure CN224677929U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water treatment equipment technology, and specifically to a filtration device. Background Technology
[0002] Filtration devices are widely used in various circulation systems, such as aquarium filtration.
[0003] In general, the core components of a filter, such as the filter pump and filter screen, are usually fixedly installed in a single housing, such as the external filter (patent number CN2644418Y). This filter installs the filter assembly in a filter canister. When cleaning or replacement is needed, the filter assembly must be removed and the impurities and debris in the filter canister must be emptied, which is inconvenient and makes it difficult to quickly remove impurities and debris. Utility Model Content
[0004] This application provides a filtration device to solve the above-mentioned problems.
[0005] In one embodiment, a filtration device is provided, comprising:
[0006] A first filtration mechanism, the first filtration mechanism comprising:
[0007] A first housing, the first housing having a first mounting hole and a water outlet;
[0008] The second housing has a first mounting port, which is detachably connected to the first mounting hole; the second housing has a second mounting port communicating with the first mounting port; a filter pump is installed in the second housing, and the outlet of the filter pump is communicating with the water outlet.
[0009] The third housing, wherein the first housing has a second mounting hole and a water inlet; the water inlet communicates with the second mounting hole; the second mounting hole and the second mounting port are detachably connected.
[0010] In one embodiment, a filter screen is fixedly connected inside the second housing, and the filter pump is mounted on the filter screen.
[0011] Specifically, the filter pump is located downstream of the filter screen, meaning that the water flows through the filter screen before entering the filter pump.
[0012] In one embodiment, a flow guide tube is fixedly connected to the filter screen; one end of the flow guide tube is fixedly connected to the filter screen, and the other end can extend into the third housing.
[0013] Specifically, the diversion tube is located upstream of the filter screen, meaning that the water flows through the diversion tube before passing through the filter screen.
[0014] In one embodiment, the inlet is located on the side of the third housing and near the second mounting hole; the inlet end of the drain tube extends to near the bottom of the third housing.
[0015] In one embodiment, a first hook is fixedly connected to the first mounting port, and a first locking hole is provided on the inner wall of the first housing for the first hook to engage. When the first hook is engaged in the first locking hole, the edge of the first mounting port and the edge of the first mounting hole abut against each other.
[0016] In one embodiment, a second hook is fixedly connected to the second mounting port, and a second locking hole is provided on the inner wall of the third housing for the second hook to engage. When the second hook is engaged in the second locking hole, the edge of the second mounting port and the edge of the second mounting hole abut against each other.
[0017] In one embodiment, the outlet of the filter pump is connected to the water outlet via a pipe.
[0018] In one embodiment, a second filtration mechanism is also included; the second filtration mechanism includes a connecting pipe and a housing with a filter tank; one end of the connecting pipe is connected to the water outlet, and the connecting pipe is connected to the filter tank; the filter tank is filled with a filler; and a water outlet is provided at the bottom of the filter tank.
[0019] Specifically, there are multiple water outlets, evenly distributed at the bottom of the filter tank. The filler material is a sponge or a porous material for cultivating nitrifying bacteria.
[0020] In one embodiment, a plurality of partitions are fixedly connected within the filter tank and arranged at intervals in sequence.
[0021] In one embodiment, the sidewall of the connecting pipe is provided with a plurality of through holes that are spaced apart in sequence; each of the through holes is located above the filter tank and is connected to the filter tank.
[0022] The beneficial effects of this application are:
[0023] The detachable connection structure of the first, second, and third housings (e.g., the first mounting hole and the first mounting port, and the second mounting hole and the second mounting port, are connected by hooks and holes) enables rapid assembly and disassembly of the filter device. After disassembling the third housing, impurities and debris inside can be removed, allowing for quick cleaning. This also facilitates easy disassembly, cleaning, or replacement of the filter pump without the need for special tools, significantly reducing maintenance costs and time.
[0024] Each shell can be manufactured using individual molds, reducing mold complexity and production costs. The final assembly process is simple and quick, which helps improve production efficiency and is suitable for mass production.
[0025] By independently encapsulating the filter pump within a second housing, it is relatively isolated from the aquatic environment in the aquarium. This reduces the direct entry of fish, shrimp, aquatic plants, or large debris into the pump body, effectively preventing the pump impeller from jamming or the motor from burning out, and significantly extending the service life of the core components. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of a fish tank structure in one embodiment of this application;
[0028] Figure 2 This is one embodiment of the present application Figure 1 Sectional view along direction B in the middle;
[0029] Figure 3 This is one embodiment of the present application Figure 1 Explosion-proof diagram of section B in the middle;
[0030] Figure 4 This is one embodiment of the present application Figure 1 A magnified view of part A in the diagram;
[0031] Figure 5 This is an exploded view of the first and second filtering mechanisms in one embodiment of this application;
[0032] Labels for each item in the figure:
[0033] 1. First filtration mechanism; 11. First housing; 111. First mounting hole; 112. Outlet; 113. First locking hole; 114. Pipe body; 12. Second housing; 121. First mounting port; 122. Second mounting port; 123. Filter pump; 124. Filter screen; 125. Drain tube; 126. First hook; 127. Second hook; 13. Third housing; 131. Second mounting hole; 132. Inlet; 133. Second locking hole;
[0034] 2. Second filtration mechanism; 21. Connecting pipe; 22. Outer shell; 23. Filter tank; 24. Filler; 25. Water outlet; 26. Baffle; 27. Through hole; 3. Fish tank; 31. Mounting shell. Detailed Implementation
[0035] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0040] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0041] This application proposes improvements and innovations, and presents the following embodiments.
[0042] In some implementations, please refer to Figures 1 to 5 A filtration device is provided, comprising:
[0043] First filtration mechanism 1, the first filtration mechanism 1 includes:
[0044] The first housing 11 has a first mounting hole 111 and a water outlet 112;
[0045] The second housing 12 has a first mounting port 121, which is detachably connected to the first mounting hole 111; the second housing 12 has a second mounting port 122 that communicates with the first mounting port 121; a filter pump 123 is installed in the second housing 12, and the outlet of the filter pump 123 is communicated with the water outlet 112.
[0046] The third housing 13, the first housing 11 has a second mounting hole 131 and a water inlet 132; the water inlet 132 is connected to the second mounting hole 131; the second mounting hole 131 is detachably connected to the second mounting port 122.
[0047] The detachable connection structure of the first housing 11, the second housing 12, and the third housing 13 (e.g., the first mounting hole 111 and the first mounting port 121, and the second mounting hole 131 and the second mounting port 122 are engaged by hooks and holes) enables rapid assembly and disassembly of the filter device. After disassembling the third housing 13, impurities inside can be removed, achieving rapid cleaning. This also allows users to easily disassemble, clean, or replace the filter pump 123 without the need for special tools, significantly reducing maintenance costs and time.
[0048] Each shell can be manufactured using individual molds, reducing mold complexity and production costs. The final assembly process is simple and quick, which helps improve production efficiency and is suitable for mass production.
[0049] The filter pump 123 is independently encapsulated in the second housing 12, which isolates it from the aquatic environment in the aquarium 3. This reduces the direct entry of fish, shrimp, aquatic plants, or large debris into the pump body, effectively preventing the pump impeller from jamming or the motor from burning out, and significantly extending the service life of the core components.
[0050] In one embodiment, a filter screen 124 is fixedly connected inside the second housing 12, and a filter pump 123 is mounted on the filter screen 124.
[0051] A filter screen 124 is installed upstream of the filter pump 123 to perform preliminary physical filtration of the water flow, effectively intercepting larger particles of impurities such as fish feces, uneaten feed, and fragments of aquatic plants. This prevents impurities from directly entering and damaging the impeller and rotor of the filter pump 123, providing double protection for the pump and making its operation more stable and its lifespan longer.
[0052] Specifically, the filter pump 123 is located downstream of the filter screen 124, meaning that the water flows through the filter screen 124 before entering the filter pump 123.
[0053] In one embodiment, a flow guide tube 125 is fixedly connected to the filter screen 124; one end of the flow guide tube 125 is fixedly connected to the filter screen 124, and the other end can extend into the third housing 13.
[0054] The guide tube 125 fixed to the filter screen 124 can extend to the bottom of the third housing 13, so that the water flows from bottom to top, which helps the heavier impurities in the water to settle at the bottom of the third housing 13 under the action of gravity, reducing the amount of impurities adhering to the filter screen 124.
[0055] Specifically, the diversion tube 125 is located upstream of the filter screen 124, meaning that the water flows through the diversion tube 125 before passing through the filter screen 124.
[0056] In one embodiment, the inlet 132 is located on the side of the third housing 13 and near the second mounting hole 131; the inlet end of the guide tube 125 extends to near the bottom of the third housing 13. This arrangement increases the path of the water flow and reduces the flow rate, thereby making it easier for impurities to settle at the bottom of the third housing 13.
[0057] In one embodiment, a first hook 126 is fixedly connected to the first mounting port 121, and a first locking hole 113 is provided on the inner wall of the first housing 11 for the first hook 126 to be engaged. When the first hook 126 is engaged in the first locking hole 113, the edge of the first mounting port 121 and the edge of the first mounting hole 111 are in close contact with each other.
[0058] The use of hooks and holes provides a crisp, satisfying click, allowing users to clearly perceive that the installation is in place and ensuring the mechanical strength and reliability of the connection between the first housing 11 and the second housing 12. The edge-fitting design ensures a tight seal at the connection, effectively preventing the formation of suction forces that could attract fish when the filter pump 123 is operating.
[0059] This hook and hole connection enables truly quick disassembly and assembly by hand. When cleaning and maintaining the pump module, users can easily separate the first housing 11 and the second housing 12 by pressing (pressing down the hook to separate it from the hole) and pulling (pulling the second housing 12). Disassembly and assembly are extremely convenient.
[0060] In one embodiment, a second hook 127 is fixedly connected to the second mounting port 122, and a second locking hole 133 is provided on the inner wall of the third housing 13 for the second hook 127 to be engaged. When the second hook 127 is engaged in the second locking hole 133, the edge of the second mounting port 122 and the edge of the second mounting hole 131 are in contact with each other.
[0061] The connection method of the second hook 127 engaging with the second hook hole 133 is the same as the connection method of the first hook 126 engaging with the first hook hole 113, and the effect is also the same. It makes it easier for users to clean impurities inside the third housing 13.
[0062] In one embodiment, the outlet of the filter pump 123 is connected to the outlet 112 via a pipe 114. The design of using a pipe 114 (such as a flexible hose) to connect the outlet of the filter pump 123 and the outlet 112 is reasonable.
[0063] In one embodiment, a second filtration mechanism 2 is further included; the second filtration mechanism 2 includes a connecting pipe 21 and a housing 22 having a filter tank 23; one end of the connecting pipe 21 is connected to the water outlet 112, and the connecting pipe 21 is connected to the filter tank 23; the filter tank 23 is filled with filler 24; and a water outlet 25 is provided at the bottom of the filter tank 23.
[0064] The added second filtration unit 2 provides space to accommodate biological filter media (such as sponges, bio-rings, and bio-balls). These porous materials can cultivate a large number of beneficial bacteria, such as nitrifying bacteria. They can efficiently decompose toxic ammonia and nitrite in the water, converting them into less toxic nitrate, thus fundamentally stabilizing the ecological environment of the aquarium 3 and ensuring the health of the fish.
[0065] Specifically, there are multiple water outlet holes 25, which are evenly distributed at the bottom of the filter tank 23. The filler 24 is a sponge or a porous material for cultivating nitrifying bacteria.
[0066] The filling material, such as sponges, allows for finer physical filtration of the water after the first stage of filtration, adsorbing smaller particulate impurities and making the water clearer and more transparent. Multiple evenly distributed water outlets 25 ensure that the filtered water flows back to the aquarium 3 smoothly and evenly, avoiding the impact of a single strong water flow on the aquascape and fish in the aquarium 3, thus creating a more natural ecological environment.
[0067] In one embodiment, a plurality of partitions 26 are fixedly connected within the filter tank 23, arranged at intervals in sequence. The partitions 26 divide the filter tank 23 into multiple small chambers to facilitate the installation and placement of the packing material 24, ensuring that the packing material 24 is evenly distributed and improving filtration efficiency.
[0068] In one embodiment, a plurality of through holes 27 are provided on the side wall of the connecting pipe 21, which are arranged in sequence at intervals; each through hole 27 is located above the filter tank 23 and is connected to the filter tank 23.
[0069] Multiple through-holes 27 on the side wall of the connecting pipe 21 disperse the water flow, spraying it evenly across the entire cross-section of the filter tank 23 below, like a "shower head," preventing the water flow from impacting only a localized area of the filter media. This water distribution method ensures that all filter media can be evenly contacted by the water flow, achieving 100% filter media utilization, preventing localized filter media failure due to insufficient water flow, and avoiding localized blockage due to excessive water flow, significantly improving the overall filtration efficiency and capacity of the second filtration mechanism 2.
[0070] Specifically, such as Figure 2 As shown, a mounting shell 31 is fixedly connected to the inner wall of the fish tank 3. The first filter mechanism 1 and the second filter mechanism 2 are both located inside the mounting shell 31. The mounting shell 31 has an opening that communicates with the water inlet 132 and the filtered water outlet.
[0071] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this utility model.
Claims
1. A filtration device, characterized in that, include A first filtration mechanism, comprising: A first housing, the first housing having a first mounting hole and a water outlet; The second housing has a first mounting port, which is detachably connected to the first mounting hole; the second housing has a second mounting port communicating with the first mounting port; a filter pump is installed in the second housing, and the outlet of the filter pump is communicating with the water outlet. The third housing, wherein the first housing has a second mounting hole and a water inlet; the water inlet communicates with the second mounting hole; the second mounting hole and the second mounting port are detachably connected.
2. The filtration device according to claim 1, characterized in that, A filter screen is fixedly connected inside the second housing, and the filter pump is installed on the filter screen.
3. The filtration device according to claim 2, characterized in that, A flow guide tube is fixedly connected to the filter screen; one end of the flow guide tube is fixedly connected to the filter screen, and the other end can extend into the third housing.
4. The filtration device according to claim 3, characterized in that, The water inlet is located on the side of the third housing and close to the second mounting hole; the water inlet end of the drain tube extends to the bottom of the third housing.
5. The filtration device according to any one of claims 1-4, characterized in that, A first hook is fixedly connected to the first mounting port, and a first locking hole is provided on the inner wall of the first housing for the first hook to be engaged. When the first hook is engaged in the first locking hole, the edge of the first mounting port and the edge of the first mounting hole are in close contact with each other.
6. The filtration device according to claim 5, characterized in that, A second hook is fixedly connected to the second mounting port, and a second locking hole is provided on the inner wall of the third housing for the second hook to be engaged. When the second hook is engaged in the second locking hole, the edge of the second mounting port and the edge of the second mounting hole are in close contact with each other.
7. The filtration device according to claim 6, characterized in that, The outlet of the filter pump is connected to the water outlet through a pipe.
8. The filtration device according to claim 6 or 7, characterized in that, It also includes a second filtration mechanism; the second filtration mechanism includes a connecting pipe and a housing with a filter tank; one end of the connecting pipe is connected to the water outlet, and the connecting pipe is connected to the filter tank; the filter tank is filled with a filler; and a water outlet is provided at the bottom of the filter tank.
9. The filtration device according to claim 8, characterized in that, The filter tank is fixedly connected to multiple partitions arranged at intervals.
10. The filtration device according to claim 9, characterized in that, The side wall of the connecting pipe is provided with a plurality of through holes that are spaced apart in sequence; each of the through holes is located above the filter tank and is connected to the filter tank.