A hanging structure of a fish tank filter and a fish tank filter

By using a locking sleeve design with serrated stop teeth and elastic locking teeth, combined with an elastic abutment post, the adaptability and vibration noise problems of suspended aquarium filters are solved, achieving stable installation and low-noise operation, improving the user experience and the comfort of aquatic organisms.

CN224330167UActive Publication Date: 2026-06-09CHUANGXING ELECTRICAL APPLIANCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUANGXING ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-09

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  • Figure CN224330167U_ABST
    Figure CN224330167U_ABST
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Abstract

The utility model discloses a kind of suspension structures of fish tank filter, including filter barrel, detachably connected in the suspension bracket of filter barrel side surface, the upper portion of the suspension bracket is equipped with the regulating arm extending outward, the regulating arm is sleeved with the locking sleeve that can slide along it, and the locking sleeve and suspension bracket can clamp fish tank wall between the two;The side surface of the regulating arm is equipped with several sawtooth gear teeth, the locking sleeve is equipped with the elastic click that can be mutually clamped with each gear tooth and cooperate, and have.The utility model has the advantages of being able to adapt to different thickness fish tank wall, installation is stable and can effectively reduce vibration and noise.
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Description

Technical Field

[0001] This utility model relates to the field of aquarium filter technology, and in particular to a suspension structure for an aquarium filter and an aquarium filter itself. Background Technology

[0002] Currently, there are various types of aquarium filters on the market. Among them, hanging (or wall-mounted) aquarium filters are widely used in small and medium-sized aquariums due to their advantages such as not taking up internal space in the aquarium, easy installation, and easy maintenance.

[0003] However, existing suspended aquarium filters still have some problems that urgently need improvement in practical use:

[0004] 1. Poor adaptability: Most conventional hanging aquarium filters use fixed-size or simple hooks to suspend them from the side wall of the aquarium. This design results in poor adaptability to the thickness of the aquarium wall. If the aquarium glass (or other wall material) is too thick, the filter may not be able to be installed securely; if it is too thin, there may be a large gap between the hook and the wall, leading to an unstable installation. Users often need to find a matching filter model based on the specific thickness of their aquarium, causing inconvenience and poor versatility.

[0005] 2. Vibration and Noise Issues: When an aquarium filter is in operation, its internal power components, such as the water pump, generate mechanical vibrations. For traditional suspended structures, especially when the hooks are only loosely in contact with the aquarium wall, this vibration is transmitted directly to the aquarium wall without any attenuation. The aquarium itself, especially glass aquariums, can become a resonant cavity. The filter's vibration can easily cause resonance in the aquarium, generating significant noise. This not only affects the user's viewing experience and living environment, but long-term vibration may also cause potential minor damage to the aquarium structure and even cause adverse stress reactions in sensitive aquatic organisms within the tank.

[0006] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a suspension structure and aquarium filter that can adapt to aquarium walls of different thicknesses, be installed stably, and effectively reduce vibration and noise.

[0008] This utility model is achieved through the following technical solution:

[0009] To solve the above-mentioned technical problems, this utility model provides a suspension structure for a fish tank filter, including a filter canister and a suspension bracket detachably connected to the side of the filter canister. The upper part of the suspension bracket is provided with an outwardly extending adjustment arm, and a locking sleeve that can slide along the adjustment arm is sleeved on the adjustment arm. The locking sleeve and the suspension bracket can clamp the fish tank wall between them. The side of the adjustment arm is provided with several serrated stop teeth, and the locking sleeve is provided with elastic locking teeth that can engage with each stop tooth.

[0010] To further solve the technical problems to be solved by this utility model, this utility model provides a suspension structure for an aquarium filter in which the gear teeth are oblique teeth inclined towards the filter barrel.

[0011] To further address the technical problems to be solved by this utility model, the suspension structure of the aquarium filter provided by this utility model also includes an abutment post located at the bottom of the filter barrel. The abutment post is elastic and flexible, and its free end can abut against the side wall of the aquarium.

[0012] To further solve the technical problem to be solved by this utility model, the present utility model provides a suspension structure for a fish tank filter, wherein the bottom of the filter barrel is provided with an installation groove, the bottom surface and the side facing the fish tank of the installation groove are open, the side of the installation groove is provided with several anti-slip teeth, one end of the abutment post is inserted into the corresponding installation groove, and the abutment post is interference-fitted in the installation groove and the length of the abutment post can be adjusted.

[0013] This utility model is achieved through the following technical solution:

[0014] To solve the above-mentioned technical problems, this utility model provides a fish tank filter, including the above-mentioned suspension structure, and also including a water inlet, a water inlet chamber, a filter chamber and a water outlet disposed in the filter barrel. A water inlet pipe is connected to the water inlet, the lower end of the water inlet chamber is connected to the lower end of the filter chamber, a filter assembly is disposed in the filter chamber, a water pump is disposed between the water outlets at the top of the filter chamber, and a water outlet pipe is connected to the water outlet.

[0015] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a fish tank filter in which the water outlet pipeline includes a water outlet pipe, and the water outlet pipe is provided with a water volume switch for adjusting the water volume and a water spraying device.

[0016] To further address the technical problems to be solved by this utility model, the present utility model provides a fish tank filter in which the water spraying component includes a connector, and a movable nozzle is connected to the connector via a hollow universal ball joint.

[0017] To further address the technical problems to be solved by this utility model, the present utility model provides an aquarium filter in which an upwardly extending air inlet pipe is connected to the side of the connector via a venturi structure, and an air inlet switch for adjusting the air intake is provided at the upper opening of the air inlet pipe.

[0018] In order to further solve the technical problem to be solved by this utility model, the aquarium filter provided by this utility model includes a rain pipe that can replace the water spraying component in the water outlet pipe, and multiple water spray nozzles are distributed along its axial direction on the rain pipe.

[0019] To further solve the technical problem to be solved by this utility model, the present utility model provides a fish tank filter in which the water inlet pipe includes a main water inlet pipe, a first filter basket is provided at the lower end of the main water inlet pipe, an oil suction pipe is provided on the side wall of the main water inlet pipe, the oil suction pipe is connected to an oil suction head, and a second filter basket is provided on the oil suction head.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] This utility model's aquarium filter suspension structure, through the cooperation of an adjusting arm with serrated stop teeth and a sliding locking sleeve with elastic teeth, achieves convenient and stable clamping of aquarium walls of different thicknesses, greatly improving the filter's installation applicability. Simultaneously, the optional bottom elastic abutment post design cleverly utilizes the elasticity and flexibility of the material to effectively absorb and buffer the vibrations generated during filter operation, significantly reducing noise and preventing resonance with the aquarium.

[0022] Compared to existing technologies, the significant advantages of this invention are: First, it is highly adaptable, flexibly adapting to various sizes of aquariums, overcoming the limitations of traditional fixed hooks; second, it offers stable installation and outstanding vibration and noise reduction effects. The combination of the ratchet locking mechanism and the elastic abutment post ensures high stability and low noise during filter operation, improving user experience and the comfort of aquatic organisms; third, its ingenious structure and convenient operation make installation and adjustment simpler and more intuitive. Furthermore, the optimized inlet and outlet water components of the filter body, such as adjustable angle nozzles, venturi aeration, deluge tubes, and oil-absorbing film devices, further enhance the product's functionality and practicality. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is an exploded view of the suspension structure;

[0026] Figure 3 This is a sectional view of the suspended structure;

[0027] Figure 4 This is a 3D structural diagram of the filter canister;

[0028] Figure 5 This is a cross-sectional view of the water inlet pipe;

[0029] Figure 6 This is a cross-sectional view of a fish tank filter;

[0030] Figure 7 It is an exploded view of the water outlet pipe;

[0031] Figure 8 This is a cross-sectional view of the water outlet pipe. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] This embodiment provides a suspension structure for a fish tank filter, the structure and connection relationship of which are as follows: Figures 1 to 3 As shown.

[0035] like Figures 1 to 3 As shown, the suspension structure of the aquarium filter of this utility model includes a filter canister 1 and a suspension bracket 2 detachably connected to the side of the filter canister 1. This detachable connection method facilitates the user's installation, disassembly, cleaning, or maintenance of the filter. In this embodiment, a preferred connection method is as follows: at least one (two are shown in the figure) hook 16 is machined or fixed on the side wall of the filter canister 1, and correspondingly, a hanging hole 22 is provided on the upper inner side of the suspension bracket 2 to match and engage with the hook 16. By inserting the hook 16 into the hanging hole 22, a quick, stable, and detachable connection between the suspension bracket 2 and the filter canister 1 can be achieved.

[0036] The upper part of the suspension bracket 2 is provided with an adjusting arm 21 extending away from the filter canister 1 (i.e., towards the inside of the aquarium when installed). A locking sleeve 3, which can slide along its length, is movably sleeved on the adjusting arm 21. In actual use, the body of the suspension bracket 2 (specifically, the part near the root of the adjusting arm 21 that is used to contact the outer wall of the aquarium) and the inner side of the locking sleeve 3 (i.e., the side facing the suspension bracket 2) work together to clamp aquarium walls of different thicknesses between them.

[0037] To achieve reliable locking and convenient adjustment, at least one side of the adjusting arm 21 (e.g., the upper or lower surface, shown as the upper surface in the figure) is provided with a plurality of serrated gear teeth 211 distributed along its length. Correspondingly, at least one locking tooth 31 is provided at the corresponding position of the locking sleeve 3 (e.g., the upper part of its inner wall) to engage with each of the gear teeth 211. The locking tooth 31 is preferably designed to have a certain degree of elasticity, for example, through its own material elasticity or by connecting an elastic element (such as a spring sheet). When the locking sleeve 3 slides along the adjusting arm 21, the locking tooth 31 can pass over the gear teeth 211 step by step and engage with them, forming a ratchet-like locking effect.

[0038] Furthermore, to improve the stability of the locking mechanism and prevent accidental loosening, the gear teeth 211 are preferably designed as inclined teeth tilted towards the filter canister 1 (i.e., towards the root of the adjusting arm 21). Specifically, each gear tooth 211 has a gentle slope facing the free end of the adjusting arm 21 and a steep straight surface (or nearly straight surface) facing the root of the adjusting arm 21. This design allows the locking teeth 31 to slide relatively easily over the gentle slope of the gear teeth 211 when the locking sleeve 3 slides towards the direction of clamping the aquarium wall (i.e., away from the filter canister 1); while when subjected to a reverse force attempting to loosen the locking sleeve 3, the locking teeth 31 will firmly abut against the steep straight surface of the gear teeth 211, thereby effectively preventing the locking sleeve 3 from retracting on its own and ensuring the firmness of the clamping.

[0039] To further improve the operational stability of the filter and reduce vibration transmission, the suspension structure of this embodiment preferably includes at least one abutment post 4 located at or near the bottom of the filter canister 1. This abutment post 4 has a certain degree of elasticity and flexibility, and can be made of materials such as rubber, silicone, elastic polyurethane, or other materials with similar vibration damping properties. Its free end is designed to elastically abut against the side wall of the aquarium after the filter is installed on it. When the filter is operating, the abutment post 4 can effectively absorb and buffer vibrations generated by components such as the water pump, reducing the transmission of these vibrations to the aquarium wall, thereby avoiding or significantly reducing resonance phenomena that may occur between the aquarium and the filter, thus reducing operating noise and improving the user experience.

[0040] To facilitate the installation of the abutment post 4 and adjust its extension length to adapt to different installation situations, the bottom of the filter canister 1 (or the location where the abutment post 4 needs to be installed) is provided with at least one mounting groove 11. The bottom surface and the side facing the aquarium (i.e., the direction in which the abutment post 4 extends) of the mounting groove 11 are designed as an open structure to facilitate the insertion and extension of the abutment post 4. To ensure that the abutment post 4 can stably maintain its position after adjustment, the inner sidewall of the mounting groove 11 may be provided with several anti-slip teeth 111 (or similar friction-enhancing structures, such as textured surfaces). One end of the abutment post 4 is inserted into the corresponding mounting groove 11, and preferably, an interference fit is formed between the abutment post 4 and the mounting groove 11. Through this interference fit and the function of the anti-slip teeth 111, the user can conveniently adjust the effective length of the abutment post 4 extending out of the mounting groove 11 by axially pushing and pulling it, ensuring that its free end can just abut against the sidewall of the aquarium with a certain preload, while preventing accidental displacement during filter operation.

[0041] During installation and use, the user first connects the suspension bracket 2 to the filter canister 1 via the hook 16 and hanging hole 22. Then, the entire assembly is hung on the edge of the aquarium wall, with the main body of the suspension bracket 2 against the outer wall of the aquarium. Next, the user pushes the locking sleeve 3 towards the aquarium wall. The locking teeth 31 on the locking sleeve 3 slide and engage with the stop teeth 211 on the adjusting arm 21 until the inner side of the locking sleeve 3 is in close contact with the inner wall of the aquarium, thus firmly clamping the aquarium wall between the suspension bracket 2 and the locking sleeve 3. Simultaneously, the extension length of the abutment post 4 is adjusted so that its free end elastically abuts against the side wall of the aquarium. In this way, the filter is securely and with low vibration suspended on the aquarium.

[0042] Example 2

[0043] This embodiment further provides a fish tank filter. Its overall structure and internal components can be found in [reference needed]. Figures 1 to 8 As shown.

[0044] like Figure 1 , Figures 5-8 As shown, the aquarium filter of this utility model, in addition to the suspension structure described in Embodiment 1, which consists of a filter canister 1, a suspension bracket 2, an adjusting arm 21, a locking sleeve 3, and an optional abutment post 4, also includes a core component inside the filter canister 1 that enables water filtration. Specifically, it includes:

[0045] An inlet 12 located on the upper or side of the filter canister 1 is used to draw water to be treated from the aquarium.

[0046] An inlet chamber 13, which is connected to the inlet 12, serves as the initial channel and buffer zone for water to enter the filtration system.

[0047] A main filter chamber 14 is used to accommodate various filter media. In this embodiment, the lower end of the water inlet chamber 13 is connected to the lower end of the filter chamber 14, forming a water flow direction from bottom to top through the filter media, which helps to improve filtration efficiency and prevent premature clogging of the filter media.

[0048] A filter assembly 6 is provided in the filter chamber 14. The filter assembly 6 may be, but is not limited to, one or more filter media such as physical filter cotton, biological filter cotton, activated carbon pack, ceramic rings, and bacterial houses, used to remove suspended impurities in water, adsorb harmful chemicals, and cultivate beneficial nitrifying bacteria.

[0049] An outlet 15 is located at the top of the filter chamber 14 (i.e., after the water flows through the filter assembly 6).

[0050] A water pump 7 is typically installed on top of the filter chamber 14, after the filter assembly 6 and before the outlet 15, or it can be arranged between the inlet chamber 13 and the filter chamber 14 to provide power for water circulation.

[0051] The water inlet pipe 5, which is connected to the water inlet 12, extends into the water in the fish tank at one end.

[0052] The water outlet pipe 8, connected to the water outlet 15, is used to return the filtered clean water to the fish tank.

[0053] The water flow path is roughly as follows: the aquarium water is sucked into the inlet 12 through the inlet pipe 5, enters the inlet chamber 13, and then flows from the bottom of the inlet chamber 13 into the bottom of the filter chamber 14. It flows from bottom to top through the filter component 6 in the filter chamber 14 for purification. The purified water is drawn by the water pump 7 and discharged through the outlet 15, and then returned to the aquarium through the outlet pipe 8.

[0054] Furthermore, in order to achieve diverse water output effects and functions, the water outlet pipe 8 can be optimized as follows:

[0055] like Figure 7 and Figure 8 As shown, the water outlet pipe 8 may include a water outlet pipe 81. Preferably, a water flow switch 82 is installed on the water outlet pipe 81 to adjust the water flow rate, allowing the user to adjust the filter's water output according to the size of the aquarium, stocking density, or specific needs (such as reducing the water flow during feeding). Simultaneously, a water spray device 83 is preferably connected to the end of the water outlet pipe 81.

[0056] The structure of the water spraying component 83 is as follows: Figure 7 , Figure 8As shown, it may include a connector 831 for connecting to a water outlet pipe 81 (or the outlet of a water flow switch 82). A movable nozzle 833 is connected to the connector 831 via a hollow universal ball joint 832. The structure of the universal ball joint 832 allows the movable nozzle 833 to rotate and adjust at large angles, enabling the user to flexibly control the direction and angle of the filtered clean water outlet to adapt to different landscaping needs or water circulation patterns. As a preferred design, the movable nozzle 833 may also contain built-in filter balls or a small amount of other filter media for final fine filtration of the outlet water or as an additional biological culture medium.

[0057] To further increase the dissolved oxygen level in the aquarium water, such as Figure 7 , Figure 8 As shown, the side of the connector 831 of the water spraying component 83 can be connected to an upwardly extending air inlet pipe 835 via a Venturi structure 834. The upper opening of the air inlet pipe 835 is usually located above the water surface and preferably has an air inlet switch 836 for adjusting the air intake. When the water flows at high speed through the throat of the Venturi structure 834, a negative pressure is generated at the throat. This negative pressure draws in air from the outside through the air inlet pipe 835. The air is entrained in the water flow and broken into tiny bubbles, which are then sprayed out from the movable nozzle 833 along with the water flow, thereby effectively increasing the dissolved oxygen content in the water.

[0058] Specifically, such as Figure 7 As shown, the air intake switch 836 preferably includes a knob cover rotatably connected to the upper opening of the air intake pipe 835. A notch (denoted as the first notch) is provided on the side wall of the knob cover, and a corresponding notch (denoted as the second notch) is also provided on the upper wall of the air intake pipe 835. By rotating the knob cover, the relative position and overlap area between the first and second notches can be changed. When they completely overlap, the air intake is at its maximum; when they are completely offset, the air intake is at its minimum (or closed). This allows the user to conveniently adjust the oxygenation intensity as needed.

[0059] In addition to the aforementioned water spray component 83, the aquarium filter of this invention also provides another optional water outlet method. For example... Figure 7 As shown, the user can remove the water shower component 83 and replace it with a rain shower pipe 84. This rain shower pipe 84 is typically a pipe of a certain length, with multiple spray nozzles 841 evenly distributed or arranged according to a specific pattern along its axial direction (length direction). When water flows through the rain shower pipe 84, it disperses from these spray nozzles 841, creating a fine, drizzling effect. This water flow is gentle and covers a wide area, making it particularly suitable for aquariums housing fish that dislike strong water currents or for aquariums with aquatic plants.

[0060] Furthermore, in order to optimize the water intake effect and achieve specific functions (such as removing oil film), the water intake pipe 5 can also be designed as follows:

[0061] like Figure 5 As shown, the water inlet pipe 5 preferably includes a main water inlet pipe 51, the lower end of which (i.e., the end that extends into the aquarium water) is usually equipped with a first filter basket 52 (or filter screen). The first filter basket 52 is used to initially intercept larger impurities, fish food residue, or dead leaves, etc., to prevent them from being sucked into the water pump and causing blockage or damage.

[0062] On the side wall of the main water inlet pipe 51 (usually located near the water surface or easily adjustable to a position close to the water surface), a branch oil suction pipe 53 is preferably connected. The other end of this oil suction pipe 53 is connected to an oil suction head 54 (also called an oil film remover). The oil suction head 54 is typically designed to float on the water surface or be fixed in place by an adjustment mechanism; its main function is to remove the oil film formed on the surface of the aquarium water. Preferably, a second filter basket 55 (usually a fine filter cotton or filter screen) is provided at or inside the inlet of the oil suction head 54 to filter out fine dust and particles entrained in the oil film while it is being sucked in.

[0063] As a preferred design, the oil suction head 54 is internally equipped with an adjustment structure (e.g., a rotatable valve or baffle, the specific structure not shown in the figure) for adjusting its water intake volume, so that the user can balance the water intake ratio of the main water inlet pipe 51 and the oil suction pipe 53 according to the amount of oil film. In addition, to improve oil suction efficiency, the top surface of the oil suction head 54 (i.e., the oil suction surface in contact with the water surface) can be provided with one or more spiral (planar spiral) oil inlet grooves (e.g., ... Figure 1 (As shown). These spiral-shaped oil inlet grooves can effectively guide the oil film on the water surface to converge and be sucked into the central suction port of the oil suction head 54, thereby accelerating the oil suction speed and improving the efficiency of oil film removal.

[0064] In summary, the suspension structure design of this utility model achieves excellent adaptability and stable installation on aquarium walls of varying thicknesses, and effectively reduces vibration and noise through elastic contact. Combined with its optimized internal filtration path and diverse inlet and outlet components (such as adjustable-angle nozzles, venturi aeration, deluge tubes, and oil film absorption devices), this aquarium filter is not only easy to install and operates stably and quietly, but also offers comprehensive functionality, better meeting the diverse needs of modern aquarium enthusiasts.

Claims

1. A hanging structure for a fish tank filter, characterised in that: The filter includes a filter canister (1) and a detachable suspension bracket (2) connected to the side of the filter canister (1). The upper part of the suspension bracket (2) is provided with an outwardly extending adjustment arm (21). A locking sleeve (3) that can slide along the adjustment arm (21) is sleeved on the adjustment arm (21), and the locking sleeve (3) and the suspension bracket (2) can clamp the aquarium wall between them. The side of the adjustment arm (21) is provided with several serrated gear teeth (211), and the locking sleeve (3) is provided with elastic locking teeth (31) that can engage with each gear tooth (211).

2. A fish tank filter hanger according to claim 1, wherein: The gear teeth (211) are oblique teeth that are inclined toward the filter barrel (1).

3. A fish tank filter hanger according to claim 1, wherein: It also includes an abutment post (4) located at the bottom of the filter canister (1), the abutment post (4) being elastic and flexible, and its free end being able to abut against the side wall of the aquarium.

4. A fish tank filter hanger according to claim 3, wherein: The bottom of the filter canister (1) is provided with an installation groove (11). The bottom surface and the side facing the fish tank of the installation groove (11) are open. The side of the installation groove (11) is provided with several anti-slip teeth (111). One end of the abutment post (4) is inserted into the corresponding installation groove (11), and the abutment post (4) is interference-fitted in the installation groove (11) and the length of the abutment post (4) can be adjusted.

5. An aquarium filter characterized by: The suspension structure according to any one of claims 1-4 further includes an inlet (12), an inlet chamber (13), a filter chamber (14), and an outlet (15) provided in the filter barrel (1). An inlet pipe (5) is connected to the inlet (12). The lower end of the inlet chamber (13) is connected to the lower end of the filter chamber (14). A filter assembly (6) is provided in the filter chamber (14). A water pump (7) is provided between the outlet (15) at the top of the filter chamber (14). An outlet pipe (8) is connected to the outlet (15).

6. A filter for an aquarium according to claim 5, wherein: The water outlet pipe (8) includes a water outlet pipe (81), and the water outlet pipe (81) is provided with a water flow switch (82) for adjusting the water flow and a water spraying device (83).

7. A filter for an aquarium according to claim 6, wherein: The water spraying component (83) includes a connector (831) on which a movable nozzle (833) is connected via a hollow universal ball joint (832).

8. A filter for an aquarium according to claim 7, wherein: The side of the connector (831) is connected to an upwardly extending air intake pipe (835) via a Venturi structure (834), and an air intake switch (836) for adjusting the air intake volume is provided at the upper opening of the air intake pipe (835).

9. A filter for an aquarium according to claim 6, wherein: The water outlet pipe (8) also includes a rain pipe (84) that can replace the water spraying component (83), and multiple spray nozzles (841) are distributed along its axial direction on the rain pipe (84).

10. A filter for an aquarium according to claim 5, wherein: The water inlet pipe (5) includes a main water inlet pipe (51), a first filter basket (52) is provided at the lower end of the main water inlet pipe (51), an oil suction pipe (53) is provided on the side wall of the main water inlet pipe (51), an oil suction head (54) is connected to the oil suction head (54), and a second filter basket (55) is provided on the oil suction head (54).