An adjustable external filtration device

Abstract

The utility model relates to an adjustable external filter device, is applicable to small circular fish tank and other size fish tank, and the device includes casing, lid part and adjusting part, and the casing inside is equipped with filter space and has operating mouth, and the lid part is open and close and is equipped in operating mouth, is used for closing or opening filter space. The casing is equipped with at least one and filter space intercommunication part and / or intercommunication part cooperation, is suitable for connecting with a plurality of containers and forms fluid passage, and the adjusting part is used for adjusting the flow or on-off state of fluid, the device can be independently arranged outside the container, does not occupy the internal space of container, and the structural adaptability is strong, and through opening the lid part and closing the fluid passage, the filter material replacement and cleaning operation can be conveniently carried out, the filter space can configure multistage function area, improves the filtration efficiency and maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of liquid container filtration technology, and in particular to an adjustable external filtration device. Background Technology

[0002] Small round aquariums are widely used in homes and offices due to their rounded shape, small footprint, and high aesthetic appeal. However, aquariums require filtration to purify the water. Small round aquariums primarily use either top-mounted or built-in filtration systems. Top-mounted systems have the filter mounted above the aquarium opening, drawing water from below to the filter box above for filtration. Built-in systems have a water pump integrated into the aquarium, drawing water in and driving it to the filter box above the opening. Both of these methods, with the filter box positioned above the opening, are limited by the size of the opening, resulting in limited space for filter media, low filtration efficiency, and a significant impact on the overall aesthetics of the aquarium. Therefore, external canister filters are the preferred solution. However, most canister filters currently on the market are designed for large aquariums, requiring floor placement. Their large size and related components prevent miniaturization, making them unsuitable for small aquariums. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an adjustable external filter device that enables docking and flow rate adjustment within a miniaturized structure, making it suitable for various containers. The technical solution adopted is as follows:

[0004] An adjustable external filter device includes:

[0005] The housing has a filtration space for accommodating filter media and forming a filtration flow path, and the housing is provided with an operation port;

[0006] A connecting component, at least one of which is in communication with the filter space, for fluid to enter and / or exit the filter space through the connecting component;

[0007] The cover component is closable and is located at the operating port of the housing. It is used to seal the filter space when closed and to facilitate filter media replacement or cleaning when open.

[0008] Furthermore, the connecting component may be located in the housing and / or the cover component and communicate with the filter space to meet different filter flow path designs.

[0009] Furthermore, the connecting component can be a connecting structure or pipe that forms a fluid passage with the outside, or it can be a composite component with an integrated switch structure, wherein the switch structure includes a valve, a valve plate, a plug, a baffle, a clamping component, and a threaded pressing component.

[0010] Furthermore, the connecting component includes a first connecting component and a second connecting component disposed on the housing or the cover component, for the fluid to form a circulating fluid passage through the first connecting component and the second connecting component.

[0011] Furthermore, the connecting component can be directly or through a flow guiding component to connect with the filtration space. The flow guiding component includes any one of a flexible hose, a rigid pipe, or a pipe structure, preferably a flexible hose, which can be flexibly bent and arranged, and can deform and close the cavity when under pressure, and rebound to restore the unobstructed cavity after the pressure is released.

[0012] Furthermore, the connecting component can be a structure formed by extending one end of the flow guiding component outward, or a connecting component connected to the flow guiding component and suitable for docking with the outside, including any one or a combination of plug-in connection, socket connection, threaded connection, snap-lock, rotation lock, magnetic connection, sealed fit connection or quick-release connection, for quick connection or disconnection.

[0013] Furthermore, the fluid passage connected to the connecting component is provided with an adjusting component for adjusting the flow rate or on / off state of the fluid passage of the guiding component. The adjusting component includes the following structural forms: clamping structure, valve structure, variable diameter adjusting structure, threaded pressing structure, and electric control component.

[0014] Furthermore, the adjusting component includes an adjusting end and an actuating end. The actuating end has a receiving channel for accommodating a flow guiding component. Its sidewall is provided with a side hole with internal threads or with an internally threaded component installed. The adjusting end has a screw portion adapted to the internal thread of the side hole of the actuating end, and an operating portion integrally connected to the screw portion. The operating portion is used to control the screw portion to rotate counterclockwise or clockwise to apply or release pressure radially to the flow guiding component in the receiving channel of the actuating end.

[0015] Furthermore, the adjustment end is a screw structure with a screw at one end, and its tail is designed with a flat head or a round head to avoid scratching or excessive damage to the flow guiding component, thereby ensuring the reliability and durability of the adjustment.

[0016] Furthermore, the length of the receiving channel at the functional end is longer than the area of ​​the internal flow guiding component that is squeezed and deformed, and a sealant is applied to the gap at both ends of the channel for sealing treatment, so that the flow guiding component will not affect the two ends of the channel during the deformation process, preventing fluid from leaking to the outside of the filtration space through the receiving channel.

[0017] Furthermore, the adjustment end of the adjustment component is located outside the housing, which is used to simultaneously realize fluid communication and flow regulation functions, thereby achieving the goal of compact structure and convenient operation.

[0018] Furthermore, the accommodating channel at the action end of the regulating component is located inside the housing, while the operating part at the regulating end is located outside the housing. This is used to control the closure degree of the flow guiding component channel located inside its installation space from outside the housing, thereby realizing the flow switching and size control of the fluid passage.

[0019] Furthermore, the cover component includes one of the following forms covering the operating port of the housing, including threaded connection, snap-fit ​​connection or hinged connection, and has a detachable or rotatable opening and closing structure.

[0020] Furthermore, the sealing component and the housing are sealed together by any one or a combination of threaded engagement, snap-fit ​​engagement, and sealing components.

[0021] Furthermore, one or more partition structures with through holes can be provided inside the housing to divide the filtration space into functional areas of different spaces. The partition structure can be a fixed or detachable design.

[0022] Furthermore, it also includes a power component for driving the fluid, the power component being disposed in the filtration space or its fluid passage and connected to at least one of the first connecting component, the second connecting component, or the filtration space, for driving the fluid to enter and / or exit.

[0023] Furthermore, the power component includes an inlet end and an outlet end, wherein the inlet end and / or outlet end may be a port for plugging and unplugging, or an inlet / outlet portion opened through the housing, wherein at least one end is in communication with the filter space.

[0024] Furthermore, the power component may be a submersible pump, an external water pump, a micro electric pump, or other devices that can be used to drive fluids to meet the filtration requirements of different containers.

[0025] By adopting the above technical solution, the beneficial effects of this utility model are:

[0026] 1. By setting a cover component at the operation port of the housing, it not only facilitates daily replacement and cleaning of filter media for users, but also ensures the airtightness of the filtration space, effectively isolating the noise generated by the water pump or fluid movement, achieving quiet operation, suitable for home, office and leisure scenarios, improving user experience, and has good market promotion value.

[0027] 2. The connecting component can be located in the shell or the cover component, and can be flexibly arranged with flow guiding components such as hoses and rigid pipes, so that a more adaptable filter flow path can be designed according to aquariums or containers of different structures and specifications to meet diverse usage needs.

[0028] 3. This device adopts an external layout, which is not limited by the size of the fish tank or container opening. Its internal filtration space can accommodate more or more layers of filter media, effectively improving filtration efficiency. It is suitable for common small round or square fish tanks on the market, which reduces the impact on the overall appearance of the fish tank and improves the overall aesthetics and viewing experience.

[0029] 4. The connecting parts have a variety of replaceable connection structures, which can be quickly connected or disconnected from the outside. They can be flexibly connected to hoses inserted into small aquariums, or connected to aquariums or containers of other sizes with fittings, thereby enhancing the versatility, scalability and adaptability of the device.

[0030] 5. The regulating component is equipped with a receiving channel. By arranging a flow guiding component in the receiving channel, the flow rate and on / off state of the fluid channel can be adjusted. This structure is compact, which facilitates the miniaturization design of the device and is suitable for developing more desktop filtration products, further expanding application scenarios. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings required in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 These are schematic diagrams of the adjustment components in Embodiment 1 and Embodiment 2;

[0033] Figure 2 This is a schematic diagram of the overall implementation of Example 1;

[0034] Figure 3 This is an internal perspective view of Embodiment 1;

[0035] Figure 4 This is an internal top view of Embodiment 1;

[0036] Figure 5 This is a schematic diagram of the overall implementation of Example 2;

[0037] Figure 6 This is an internal perspective view of Example 2;

[0038] Figure 7 This is an internal top view of Embodiment 2;

[0039] Figure 8 This is a schematic diagram of the overall implementation of Example 3;

[0040] Figure 9 This is an internal perspective view of Example 3;

[0041] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Cover component; 3. Sealing component; 4. First connecting component; 5. Second connecting component; 6. First adjusting component; 7. Second adjusting component; 8. Power component; 9. Drain end; 10. Inlet end; 11. First flow guiding component; 12. Second flow guiding component; 13. Container; 23. Actuating end; 24. Adjusting end; 25. Flow guiding component; 28. Filter media.

[0042] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the 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.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "docking," "connection," "communication," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection or an integral part; they can refer to a mechanical connection or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this invention, unless otherwise expressly specified and limited, the first feature being above or below the second feature may include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them. Furthermore, "above," "top," and "over" the first feature includes the first feature at the very top and at an angle to the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "bottom," and "under" the first feature includes the first feature at the very bottom and at an angle to the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. Detailed Implementation

[0050] Example 1

[0051] Reference Figures 1 to 4 This embodiment provides an adjustable external filter device, including a housing 1, a cover component 2, and a connecting component.

[0052] The housing 1 is a vertical cylinder with a closed lower end and an operating port at the upper end. The operating port has an external thread for threaded engagement with the cover component 2. The inner wall of the cover component 2 has an internal thread that matches the external thread of the operating port. Its inner bottom surface has a sealing component 3, which serves as a sealing gasket, to achieve a sealing effect on the internal space after the cover component 2 and the housing 1 are threadedly engaged. The housing 1 has a filtration space that can accommodate the filter material 28. The upper and lower sides of the filtration space have two openings for installing an adjustment component and a connecting component.

[0053] In this embodiment, the adjusting component uses a clamping structure that closes the cavity by compressing and deforming the conduit. It includes an action end 23 and an adjusting end 24. The action end 23 is a hollow body with an internal through channel to accommodate the tubular flexible flow guide component 25 and limit its lateral displacement or shaking, so as to ensure that the adjusting end 24 can effectively close the cavity when pressed. The channel sidewall of the action end 23 has an opening, and an integrally connected nut is provided outside the opening. The screw hole of the nut communicates with the channel through the opening in the channel sidewall. The adjusting end 24 is a screw structure with a screw at one end and a rounded tail. Its screw can be screwed into the nut of the action end 23. By screwing the adjusting end 24 in or out, the tubular flexible flow guide component 25 in the channel of the action end 23 can be pressed or released, thereby closing or opening the flow channel.

[0054] One of the openings on the lower side of the filter space of the housing 1 is connected to one end of the first flow guide 11 to form a first connecting component 4;

[0055] Another opening on the lower side of the filter space has an actuating end of the first adjusting component 6 installed inside the opening. The nut of the actuating end is glued to the opening to fix it and seal it. One end of the adjusting end screw of the first adjusting component 6 enters its receiving channel through the nut of the actuating end of the first adjusting component 6. The other end of the first guide component 11 passes through the channel of the actuating end of the first adjusting component 6 and is partially exposed and communicates with the filter space.

[0056] One of the openings on the upper side of the filter space of the housing 1 is connected to one end of the second flow guide 12 to form a second connecting component 5;

[0057] Another opening on the upper side of the filter space has an actuating end of the second adjusting component 7 installed inside the opening. The nut of the actuating end is fixed in the opening by adhesive. One end of the screw of the adjusting end of the second adjusting component 7 enters its receiving channel through the nut of the actuating end of the second adjusting component 7. The other end of the second guide component 12 passes through the channel of the actuating end of the second adjusting component 7 and is partially exposed and communicates with the filter space.

[0058] The first flow guiding component 11 and the second flow guiding component 12 are elastic silicone hoses, which are easy to bend, not easily deformed, and can be repeatedly clamped. Therefore, when the side is squeezed, the cavity will be compressed and closed. After the compression is released, due to its elasticity, the cavity will be restored to unobstructed flow under its own elastic action.

[0059] In this embodiment, one end of the first flow guiding component 11 and the second flow guiding component 12 are fixed to the opening and the working end by adhesive bonding. The first connecting component 4 and the second connecting component 5 can be plugged into external components for quick docking. They serve as interfaces for fluid to enter or exit the filtration space. To prevent water from overflowing through the first adjusting component 6 and the second adjusting component 7 during use, the channel length of the working end of the first adjusting component 6 and the second adjusting component 7 is longer than the area of ​​the internal flow guiding component that is squeezed and deformed. Sealants are used to seal the gaps at both ends of the channel, so that the sealing effect at both ends of the channel will not be affected during the deformation process, preventing the fluid in the filtration space from leaking to the outside through the receiving channel.

[0060] Working principle:

[0061] In actual use, a filter sponge or other filter media 28 that can perform filtration can be placed above the first guide component 11 in the filtration space, so that the filtered water gradually rises to the position of the second guide component 12. During this process, the air inside the filtration space will be gradually discharged until the water is discharged from the second connecting component 5.

[0062] This filtration device can close or regulate the flow of fluid into and / or out of the filtration space through the first adjustment component 6 and the second adjustment component 7. After opening the cover component 2, the filter media 28 in the filtration space can be cleaned or replaced. Daily maintenance is simple and convenient.

[0063] The first and second connecting components in this embodiment can be set at the lower, middle, or upper part of the filtration space, or on the covering component 2, depending on different usage scenarios, to achieve different filtration flow path designs.

[0064] Example 2

[0065] Reference Figure 1 , Figures 5 to 7 This embodiment provides a variant of an adjustable external filter device, including a housing 1, a cover component 2, a power component 8, and a connecting component.

[0066] The housing 1 is a vertical cylinder with operating ports at both ends. Near the bottom of its interior space, there is a partition structure with a central opening, dividing its interior space into upper and lower functional areas. The upper layer forms a filtration space that can accommodate filter media 28, and the lower layer forms an installation space for installing the power component 8. The sides of the filtration space and the installation space are respectively provided with two openings for installing a connecting component and an adjusting component. The operating ports of the housing 1 are used to operate the filtration space. The operating ports are provided with external threads for threaded engagement with the cover component 2. The inner wall of the cover component 2 is provided with internal threads that match the external threads of the operating ports. Its inner bottom surface is provided with a sealing component 3, which serves as a sealing gasket, to achieve a sealing effect on the filtration space after the cover component 2 is threadedly engaged with the housing 1.

[0067] In this embodiment, the adjusting component uses a clamping structure that closes the cavity by compressing and deforming the conduit. It includes an action end 23 and an adjusting end 24. The action end 23 is a hollow body with an internal through channel to accommodate the tubular flexible flow guide component 25 and limit its lateral displacement or shaking, so as to ensure that the adjusting end 24 can effectively close the cavity when pressed. The channel sidewall of the action end 23 has an opening, and an integrally connected nut is provided outside the opening. The screw hole of the nut communicates with the channel through the opening in the channel sidewall. The adjusting end 24 is a screw structure with a screw at one end. Its screw can be screwed into the nut of the action end 23. By screwing the adjusting end 24 in or out, the compression of the tubular flexible flow guide component 25 in the channel of the action end 23 can be applied or released, thereby closing or opening the flow channel.

[0068] The power component 8 is a water pump with a liquid inlet 10 and a liquid outlet 9 that are connected to each other. It is used to discharge water that enters the liquid inlet 10 through the liquid outlet 9 or its connected fluid channel into the filtration space. The power component 8 is located in the installation space and its power cord is connected to an external power source through the side wall of the housing 1.

[0069] One of the openings on the side of the mounting space of the housing 1 is connected to one end of the first flow guide 11 by adhesive bonding to form a first connecting component 4, which can be quickly plugged in and disconnected, and is used as an interface for external fluid to enter the filtration space.

[0070] Another opening on the side of the installation space has an actuating end of the first adjusting component 6 installed inside the opening. The nut of the actuating end is fixed in the opening by adhesive. One end of the adjusting end screw of the first adjusting component 6 enters its receiving channel through the nut of the actuating end of the first adjusting component 6. The other end of the first guiding component 11 passes through the channel of the first adjusting component 6 and is connected to the liquid inlet end 10 of the power component 8.

[0071] The drain end 9 of the power component 8 is fixed to the central opening of the partition structure and connected to a rigid pipe that extends vertically to the upper part of the filtration space to enable the water entering the filtration space to flow from top to bottom. The contact position between the central opening of the partition structure and the drain end 9 is fixed and sealed by adhesive sealing.

[0072] One of the openings on the side of the filter space of the housing 1 is connected to one end of the second flow guide 12 by adhesive bonding to form a second communication component 5, which is used as an interface for the internal fluid to be discharged from the filter space.

[0073] Another opening on the side of the filter space has an actuating end of the second adjusting component 7 installed inside. The nut of the actuating end is fixed to the opening with glue. One end of the screw of the adjusting end of the second adjusting component 7 enters its receiving channel through the nut of the actuating end of the second adjusting component 7. The other end of the second flow guide component 12 passes through the channel of the second adjusting component 7 and is partially exposed and communicates with the filter space. To prevent water from overflowing through the second adjusting component 7 during use, the length of the channel of the actuating end of the second adjusting component 7 is longer than the area of ​​its internal flow guide component that is squeezed and deformed. At the gaps at both ends of its channel, sealant is used to seal them so that the sealing effect at both ends of the channel is not affected during the deformation process, preventing the fluid in the filter space from leaking to the outside through the receiving channel.

[0074] The first flow guiding component 11 and the second flow guiding component 12 are elastic silicone hoses, which are easy to bend, not easily deformed, and can be repeatedly clamped. Therefore, when the side is squeezed, the cavity will be compressed and closed. After the compression is released, due to its elasticity, the cavity will be restored to unobstructed flow under its own elastic action.

[0075] Working principle:

[0076] This embodiment can be used to filter water in a fish tank. The power unit 8 draws in water and continuously delivers it to the upper part of the filtration space of the device, where it overflows and collects downwards under the action of gravity. In actual use, a filter sponge with a hole in the middle is placed on the tube extending from the drain end 9 of the power unit 8 above the second guide component 12 in the filtration space to intercept impurities for filtration. After filtration, the water is discharged from the second connecting component 5 to achieve filtration.

[0077] This filtration device can close or regulate the flow of fluid into and / or out of the filtration space through the first adjustment component 6 and the second adjustment component 7. After opening the cover component 2, the filter media 28 in the filtration space can be cleaned or replaced. Daily maintenance is simple and convenient.

[0078] Example 3

[0079] Reference Figure 8 and Figure 9 This embodiment provides a variant of an adjustable external filter device, including a housing 1, a cover component 2, a power component 8, and a connecting component.

[0080] The housing 1 is a vertical cylinder with an operating port at the top and closed at the bottom, and has a filter space inside. The upper side of the housing 1 is provided with a first connecting component 4, and the lower side is provided with a second connecting component 5. In this embodiment, the first connecting component 4 and the second connecting component 5 are air pipe switch connectors that integrate the interface and adjustment switch functions, which are used to connect with the outside to form a fluid passage and control the flow rate and switching of the fluid passage through the valve.

[0081] The operating port is provided with an external thread for threaded engagement with the cover component 2. The inner wall of the cover component 2 is provided with an internal thread that matches the external thread of the operating port. Its inner bottom surface is provided with a sealing component 3, which serves as a sealing gasket, to achieve a sealing effect of the filter space after the cover component 2 is threadedly engaged with the housing 1.

[0082] The power component 8 is a submersible pump. The bottom housing has an inlet end for sucking in water and an outlet end for discharging water. The outlet end is connected to one end of the second guide component 12, and the other end of the second guide component 12 is connected to the second connecting component 5. The power component 8 is located at the bottom of the filtration space, and its power line extends through the housing 1 to the outside of the filtration space.

[0083] Working principle:

[0084] Within the filtration space, a filter media 28 for filtering water is provided between the first connecting component 4 and the second connecting component 5. External water enters the filtration space through the first connecting component 4 and, under the action of gravity, flows downward after being filtered by the filter media. The inlet end of the power component 8 draws in the filtered water and drives the water to be discharged through the outlet end to the connected first connecting component 4, thereby completing the filtration.

[0085] The present invention and its embodiments have been described above in an illustrative manner. This description is not restrictive and is only one embodiment of the present invention. It is not actually limited to this. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable external filter device, characterized in that, include: The housing (1) has a filtration space for accommodating filter media, and the housing (1) is provided with an operation port; A connecting component, at least one of which is in communication with the filter space, for fluid to enter and / or exit the filter space through the connecting component; The cover component (2) is located at the operating port of the housing (1).

2. The adjustable external filter device according to claim 1, characterized in that, The cover component (2) is closable at the operation port and is used to seal the filter space when closed and to perform filter material replacement or cleaning operations when open.

3. The adjustable external filter device according to claim 1, characterized in that, The cover component (2) and the housing (1) are sealed together by any one or a combination of threaded connection, snap-fit ​​connection or sealing component (3).

4. The adjustable external filter device according to claim 1, characterized in that, At least one of the connecting components is disposed on the housing (1) or the cover component (2), and is directly connected to the filter space or indirectly connected through the flow guiding component.

5. An adjustable external filter device according to claim 1, characterized in that, The connecting component includes a first connecting component (4) and a second connecting component (5), which may be formed by an interface extended from a flow guiding component that communicates with the filter space, or by a component that can be docked or connected to the flow guiding component, for docking or disconnecting the filter space from the outside.

6. An adjustable external filter device according to claim 5, characterized in that, The first connecting component (4) and the second connecting component (5) are located on the side of the housing (1) and are respectively connected to the filter space.

7. An adjustable external filter device according to claim 5, characterized in that, The first connecting component (4) and the second connecting component (5) are connected to the filter space through a flow guiding component. The flow guiding component is provided with an adjustment component for adjusting the flow rate or switching on / off of the flow guiding component.

8. An adjustable external filter device according to claim 7, characterized in that, The adjusting component has a receiving channel, which has a side hole that communicates with the inside and outside. The side hole has an internal thread structure or a component with an internal thread.

9. An adjustable external filter device according to any one of claims 7 to 8, characterized in that, The flow guiding component is located in the receiving channel of the regulating component, and the two ends of the receiving channel are provided with sealant or sealing structure to prevent the fluid in the filtration space from leaking to the outside of the filtration space through the receiving channel.

10. An adjustable external filter device according to claim 5, characterized in that, It also includes a power unit (8), the liquid inlet or liquid outlet of which is connected to the first connecting component (4) or the second connecting component (5) for driving fluid into or out of the filter space.

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