Adjustable oil absorption structure and water inlet pipeline of fish tank filter

Abstract

The utility model discloses an adjustable oil suction structure, including oil suction pipe, one end of oil suction pipe is equipped with oil suction base, be equipped with the first through -hole of oil suction base to the oil suction pipe, the upper cover of oil suction base is equipped with the float cover, the upper portion of float cover is equipped with the oil suction port, be equipped with the adjusting pipe of rotation connection on oil suction base in the float cover, adjusting pipe has the bottom and the bottom and the upper end surface of first through -hole abut, still be equipped with the second through -hole on adjusting pipe bottom, wherein, when adjusting pipe relative to the oil suction base rotates, the relative overlapping position of second through -hole with first through -hole changes, thereby changes the effective communication area between both, to adjust the oil suction speed through oil suction pipe. The utility model has the advantage that can according to actual need flexible adjustment oil suction rate.

Description

Technical Field

[0001] This utility model relates to the field of aquarium filter technology, and in particular to an adjustable oil absorption structure and an inlet pipe for an aquarium filter. Background Technology

[0002] During the daily operation of an aquarium, an undesirable oily film often forms on the water surface due to various factors, commonly referred to as an "oil film" or "protein film." To address this issue, aquarium filters typically incorporate an oil-absorbing structure (also known as a surface skimmer, oil film processor, or oil film remover) in their inlet pipe. Traditional oil-absorbing structures often lack an effective mechanism for adjusting the oil absorption rate. The amount of oil absorbed is usually fixed to the flow rate of the filter's main water pump. When the oil film is low or small fish and shrimp are active on the surface, an excessively high oil absorption rate can not only waste energy but also potentially lead to the accidental inhalation of small aquatic organisms, causing harm, or generate noise due to excessive air intake, and may even affect the normal operation and lifespan of the water pump.

[0003] Secondly, many existing oil suction structures are not designed with sufficient consideration of how to actively guide and accelerate the oil film to converge at the suction port. They often rely on the overall water flow generated by the water pump to slowly drive the oil film towards the suction port. This passive oil suction method is ineffective when the oil film is widely distributed or the suction is insufficient.

[0004] 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

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adjustable oil suction structure and aquarium filter inlet pipe that can flexibly adjust the oil suction rate according to actual needs.

[0006] This utility model can be achieved through the following technical solutions:

[0007] To solve the above-mentioned technical problems, this utility model provides an adjustable oil suction structure, including an oil suction pipe, an oil suction base at one end of the oil suction pipe, a first opening leading to the oil suction pipe inside the oil suction base, a float cover above the oil suction base, an oil suction port on the upper part of the float cover, and an adjusting pipe rotatably connected to the oil suction base inside the float cover. The adjusting pipe has a bottom surface that abuts against the upper end surface of the first opening, and a second opening is also provided on the bottom surface of the adjusting pipe. When the adjusting pipe rotates relative to the oil suction base, the relative overlap position of the second opening and the first opening changes, thereby changing the effective communication area between them to adjust the oil suction speed through the oil suction pipe.

[0008] To further solve the technical problems to be solved by this utility model, this utility model provides an adjustable oil suction structure in which the upper end of the adjusting tube is provided with a hollow filter basket extending out of the float cover, the upper end of the float cover is provided with a central hole for the filter basket to pass through upward, and the upper surface of the float cover is provided with a plurality of flow guide protrusions at the periphery of the central hole, each flow guide protrusion spirally extending outward from the periphery of the central hole, and a spiral oil suction port is formed between adjacent flow guide protrusions.

[0009] To further address the technical problems to be solved by this utility model, an adjustable oil suction structure is provided in which a circumferential limiting structure is provided between the float and the adjusting pipe, and the circumferential limiting structure enables the adjusting pipe to rotate synchronously with the float.

[0010] To further address the technical problems to be solved by this utility model, this utility model provides an adjustable oil suction structure in which the circumferential limiting structure includes an axially extending rib formed on the inner wall of the float cover and an axial groove formed on the outer wall of the adjusting tube that cooperates with the rib, or vice versa.

[0011] To further address the technical problems addressed by this utility model, an adjustable oil suction structure is provided in which the cross-sectional flow area of ​​the first port is smaller than the total cross-sectional area of ​​the oil suction base on the plane where the first port is located; and the cross-sectional flow area of ​​the second port is smaller than the total bottom area of ​​the adjusting tube.

[0012] In order to further solve the technical problem to be solved by this utility model, the present utility model provides an adjustable oil suction structure in which the first port is disposed on the surface of the oil suction base that abuts against the bottom surface of the adjusting tube, and the position of the first port is offset from the geometric center of the surface.

[0013] To further address the technical problem to be solved by this utility model, an adjustable oil suction structure is provided in which a mark is provided on the outer surface of the float cover. The mark is used to indicate the preset correspondence between the rotation direction of the adjustment tube relative to the oil suction base and the oil suction speed adjustment effect.

[0014] This utility model can also be achieved through the following technical solutions:

[0015] To solve the above-mentioned technical problems, this utility model provides a water inlet pipe for a fish tank filter, including a main water inlet pipe, on which an adjustable oil suction structure as described above is detachably connected.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] This invention achieves continuously adjustable oil suction speed by setting a rotatable oil suction base and an adjusting pipe with interlocking ports. Simultaneously, a spiral guide protrusion is designed on the float to effectively accelerate the convergence of the oil film on the water surface towards the suction port. Users can adjust the suction intensity according to the actual oil film conditions, avoiding the drawbacks of fixed or inconveniently adjustable suction in traditional structures. This significantly improves the efficiency of oil film removal and the user experience. The structure is simple, practical, and easy to promote. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a three-dimensional structural diagram of the oil-absorbing structure;

[0020] Figure 2 This is an exploded view of the oil-absorbing structure;

[0021] Figure 3 This is a cross-sectional view of the inlet pipe of the aquarium filter. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1 to 3 This embodiment provides an adjustable oil suction structure, the core purpose of which is to change the flow area by rotating the component, thereby achieving precise adjustment of the oil suction speed.

[0024] like Figure 1 and Figure 2 As shown, the adjustable oil suction structure includes an oil suction pipe 1, one end of which (usually the upper end or the free end) is connected to an oil suction base 2. The oil suction base 2 has a first opening 21 inside, which passes through the oil suction base 2 and communicates with the oil suction pipe 1, forming a channel for water to enter the oil suction pipe 1.

[0025] Above the oil suction base 2, a float cover 3 is provided (preferably one that can float up and down with the water surface). The main function of the float cover 3 is to ensure that the oil suction port is always located near the water surface in order to effectively remove the oil film. An oil suction port 31 is provided on the upper part (or upper side) of the float cover 3, through which the oil film and surface water enter the interior of the float cover 3.

[0026] The key adjustment mechanism is located inside the float shroud 3. An adjustment pipe 4 is rotatably connected to the oil suction base 2. The adjustment pipe 4 has a bottom surface, which abuts against the upper end surface of the first port 21 on the oil suction base 2 and can rotate relative to it. A second port 41 is also provided on the bottom surface of the adjustment pipe 4.

[0027] The core adjustment principle of this embodiment is as follows: when the operator rotates the adjusting tube 4 (either directly or indirectly through linkage with the float 3) relative to the oil suction base 2, the relative overlap position between the second opening 41 on the bottom surface of the adjusting tube 4 and the first opening 21 on the oil suction base 2 changes. The overlapping portion between these two openings constitutes the actual water flow channel. Therefore, changing their relative overlap position changes the effective communication area between these two openings. When the overlap area is large, the allowable water flow is large, and the oil suction speed is fast; when the overlap area is small, the allowable water flow is small, and the oil suction speed is slow. In this way, the user can conveniently adjust the oil suction speed through the oil suction tube 1 according to the actual situation of the oil film in the aquarium or personal needs.

[0028] like Figures 1-3 As shown, the upper end of the regulating pipe 4 is equipped with a perforated filter basket 5 that extends upward and passes through the top of the float cover 3. This filter basket 5 can be constructed of a mesh or grid structure. Its main function is to perform preliminary filtration of the surface water absorbed while simultaneously absorbing oil, intercepting larger impurities, fallen leaves, or preventing small fish and shrimp from being accidentally sucked into the filtration system. Furthermore, because the filter basket 5 extends beyond the float cover 3, the user can directly hold the top of the filter basket 5 to rotate the regulating pipe 4, thereby adjusting the oil absorption speed, making operation more intuitive and convenient.

[0029] Correspondingly, a central hole 32 is provided at the center of the upper end face of the float 3. The size and shape of the central hole 32 are adapted to the filter basket 5 (or the upper part of the regulating pipe 4) so ​​that the filter basket 5 can pass through it.

[0030] To further improve oil suction efficiency, especially to accelerate the convergence of the oil film towards the oil suction port 31, multiple guide protrusions 33 are provided on the upper surface of the float shroud 3 around the periphery of the central hole 32. These guide protrusions 33 extend outward in a spiral shape (planar spiral) from the periphery of the central hole 32. A spiral channel is naturally formed between two adjacent guide protrusions 33, and these channels constitute the oil suction port 31. When the water pump is working, the water flow, guided by these spiral oil suction ports 31, will form a tendency to converge towards the center (i.e., towards the regulating pipe 4 and the filter basket 5) and flow downward. This design helps to actively guide the oil film on the water surface to the oil suction area and accelerate its suction process, thus improving the efficiency of oil film removal.

[0031] To ensure that users can drive the regulating tube 4 to rotate synchronously by rotating the float 3, thereby simplifying the adjustment operation, a circumferential limiting structure is provided between the float 3 and the regulating tube 4 in this embodiment.

[0032] The circumferential limiting structure constrains the regulating pipe 4 in the circumferential direction (i.e., the direction of rotation) by the float 3. When the user rotates the float 3, the regulating pipe 4 will rotate synchronously. In the axial direction (i.e., the vertical direction), the float 3 can still float freely relative to the regulating pipe 4 (and the fixed oil suction base 2) to adapt to changes in water level.

[0033] An example of a specific circumferential limiting structure includes one or more ribs (not shown separately, but can be understood as protrusions on the inner wall) extending axially on the inner wall of the float shroud 3, while one or more axial grooves (not shown separately) are formed at corresponding positions on the outer wall of the adjusting tube 4 to mate with the ribs. When the float shroud 3 covers the outside of the adjusting tube 4, the ribs are embedded in the grooves, thereby achieving circumferential locking and relative axial sliding. Of course, the configuration can also be reversed, i.e., ribs are provided on the outer wall of the adjusting tube 4, and grooves are provided on the inner wall of the float shroud 3; the function is the same. This structure is simple, reliable, and easy to implement.

[0034] In order to achieve an effective flow regulation range, the dimensions of the first port 21 and the second port 41 are limited in this embodiment.

[0035] Specifically, the cross-sectional flow area occupied by the first port 21 on the oil suction base 2 is smaller than the total cross-sectional area of ​​the oil suction base 2 on the plane where the first port 21 is located (i.e., the plane that abuts against the bottom surface of the regulating pipe 4). This means that the first port 21 does not occupy the entire upper surface of the oil suction base 2.

[0036] Similarly, the cross-sectional flow area occupied by the second port 41 on the bottom surface of the regulating pipe 4 is also smaller than the total bottom surface area of ​​the regulating pipe 4.

[0037] This design ensures that when the regulating tube 4 rotates, the first port 21 and the second port 41 can continuously change from being completely offset (effective communication area close to zero, minimum oil suction speed) to partially overlapping and then to maximum overlap (maximum effective communication area, maximum oil suction speed). If either port occupies the entire area of ​​its plane, the overlapping area cannot be effectively changed by relative rotation.

[0038] In order to more effectively change the flow area by rotation, the position of the first port 21 (or the second port 41, or both) has been optimized in this embodiment.

[0039] like Figure 2 , Figure 3As shown, the first port 21 is disposed on the surface of the oil suction base 2 that abuts against the bottom surface of the regulating tube 4, and the position of the first port 21 is offset from the geometric center of the abutting surface (i.e., eccentrically disposed). For example, if the abutting surface is circular, the first port 21 can be an off-center hole (such as an oblong hole, a fan-shaped hole, or an offset circular hole). Similarly, the second port 41 can also adopt a similar eccentric design.

[0040] When at least one port is eccentrically positioned, the rotation of the adjusting tube 4 relative to the oil suction base 2 can more significantly change the overlap area between the two ports. The eccentric design allows the edges of the two ports to effectively "sweep" against each other during rotation, thereby achieving an adjustment range from almost completely closed to a greater degree of openness.

[0041] To help users intuitively understand the current oil suction speed or adjustment direction, this embodiment provides a mark 34 on the outer surface of the float cover 3 (or on easily observable and operable components such as the filter basket 5).

[0042] The mark 34 can be in the form of an arrow, scale line, color code, or text description (such as "fast / slow", "strong / weak", "+ / -"). It indicates the preset correspondence between the rotation direction of the regulating tube 4 (or the float 3, if they rotate synchronously) relative to the oil suction base 2 (or a fixed reference point) and the effect of oil suction speed adjustment. For example, an arrow indicates that clockwise rotation increases the oil suction volume, and counterclockwise rotation decreases the oil suction volume. By observing the mark 34, the user can easily adjust the oil suction speed to the desired state.

[0043] This utility model also provides a water inlet pipe for a fish tank filter, which adopts the adjustable oil suction structure described in any of the above embodiments.

[0044] like Figure 3 As shown, the aquarium filter's inlet pipe includes a main inlet pipe 6, which is typically connected to the aquarium filter's water pump inlet. In this embodiment, the adjustable oil suction structure (including components such as an oil suction pipe 1, an oil suction base 2, a float 3, and an adjusting pipe 4) is detachably connected to the side wall of the main inlet pipe 6 via the other end of its oil suction pipe 1 (the end not connected to the oil suction base 2).

[0045] "Detachable connection" means that users can easily install or remove the oil-absorbing structure, for example, through threaded connections, snap-fit ​​connections, or plug-in connections. This facilitates cleaning and maintenance of the oil-absorbing structure itself, or its removal when the oil-removing film function is not needed.

[0046] In summary, this utility model provides an adjustable oil suction structure and an inlet pipe for an aquarium filter. By incorporating a rotatable oil suction base with a port and an adjusting pipe, the oil suction speed can be easily adjusted. The spiral guide protrusion and filter basket improve oil suction efficiency and also provide preliminary filtration. The circumferential limiting structure simplifies operation. This ingenious design and practical function effectively solves the problems of non-adjustable or inconvenient oil suction speed and low oil suction efficiency in existing oil suction structures, and has excellent prospects for widespread application.

Claims

1. An adjustable oil absorption structure, characterized in that: The system includes an oil suction pipe (1), one end of which is provided with an oil suction base (2). The oil suction base (2) has a first port (21) leading to the oil suction pipe (1). A float cover (3) is provided above the oil suction base (2). An oil suction port (31) is provided on the upper part of the float cover (3). An adjusting pipe (4) is rotatably connected to the oil suction base (2) inside the float cover (3). The adjusting pipe (4) has a bottom surface and the bottom surface abuts against the upper end surface of the first port (21). A second port (41) is also provided on the bottom surface of the adjusting pipe (4). When the adjusting pipe (4) rotates relative to the oil suction base (2), the relative overlap position of the second port (41) and the first port (21) changes, thereby changing the effective communication area between them, so as to adjust the oil suction speed through the oil suction pipe (1).

2. The adjustable oil absorption structure according to claim 1, wherein: The upper end of the regulating pipe (4) is provided with a hollowed-out filter basket (5) extending out of the float cover (3). The upper end of the float cover (3) is provided with a central hole (32) through which the filter basket (5) passes upward. The upper surface of the float cover (3) is provided with multiple flow guide protrusions (33) at the periphery of the central hole (32). Each flow guide protrusion (33) extends outward spirally from the periphery of the central hole (32), and a spiral oil suction port (31) is formed between adjacent flow guide protrusions (33).

3. The adjustable oil absorption structure according to claim 1, wherein: A circumferential limiting structure is provided between the float (3) and the regulating tube (4), which enables the regulating tube (4) to rotate synchronously with the float (3).

4. The adjustable oil absorption structure according to claim 3, wherein: The circumferential limiting structure includes an axially extending rib formed on the inner wall of the float (3) and an axial groove formed on the outer wall of the adjusting tube (4) that cooperates with the rib, or vice versa.

5. The adjustable oil absorption structure of claim 1, wherein: The cross-sectional flow area of ​​the first port (21) is smaller than the total cross-sectional area of ​​the oil suction base (2) on the plane where the first port (21) is located; and the cross-sectional flow area of ​​the second port (41) is smaller than the total bottom area of ​​the regulating pipe (4).

6. The adjustable oil absorption structure of claim 1, wherein: The first port (21) is disposed on the surface of the oil suction base (2) that abuts against the bottom surface of the regulating tube (4), and the position of the first port (21) is offset from the geometric center of the surface.

7. The adjustable oil absorption structure of claim 1, wherein: Marks (34) are provided on the outer surface of the float (3). The marks (34) are used to indicate the preset correspondence between the rotation direction of the regulating tube (4) relative to the oil suction base (2) and the oil suction speed adjustment effect.

8. An inlet water line for a fish tank filter, the inlet water line comprising: It includes a main water inlet pipe (6), and an adjustable oil suction structure according to any one of claims 1-7 is detachably connected to the side wall of the main water inlet pipe (6).

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