Fish tank foreign body extractor

Abstract

The present invention relates to a foreign matter extractor for a fish tank, which is characterized in that it can remove the excrement and feed of fish remaining in the fish tank without performing a water change process and without causing filter clogging, and can prevent foreign matter filtered by the filter from flowing back into the fish tank. The extractor comprises: a main body, through which water can flow in through an inlet pipe equipped from the inside to the bottom, and the water flowing in is discharged through a discharge port via a filter equipped inside; the filter surrounds the inlet pipe and is separated from the side of the main body, and the discharge port is formed on the lower side of the filter, so that foreign matter filtered by the filter is accumulated in the main body through the space between the main body and the side of the main body, and the water after passing through the filter is discharged into the fish tank through the discharge port.

Description

Technical Field

[0001] The invention relates to a foreign body extractor in a fish tank, and in particular to a foreign body extractor in a fish tank which can effectively extract excrement and feed of fish remaining in the fish tank without changing water. Background Art

[0002] Generally speaking, fish tanks are made of transparent glass or acrylic so that the interior can be observed. Sand and / or decorations can be placed on the bottom of the tank and the tank is filled with water for raising fish.

[0003] When feeding fish into the fish tank and raising fish, after a certain period of time, the leftover feed or fish excrement will accumulate at the bottom. During the decomposition of these substances by bacteria, toxic substances such as ammonia, nitrite and nitrate will be dissolved in the water, causing the fish to be stressed or poisoned to die.

[0004] To prevent these issues, the inside of the fish tank needs to be cleaned regularly, primarily using a dropper or siphon. Using a dropper or manual siphon is cumbersome, requiring the user to continuously press the pump. A drip tray is also required for draining the water, and small or large amounts of water may be discharged during operation, necessitating a refill of water afterward. Furthermore, electric siphons, due to their mesh-like filter structure, are unable to filter out fine foreign matter, and their small surface area can quickly lead to clogging.

[0005] In addition, Korean registered patent No. 10-1271141 (hereinafter referred to as the "cited invention") discloses a technology in which a check valve is opened after filling a main body with air to discharge air while allowing water and foreign matter to flow into the main body, and only water is discharged to the outside of the main body through a discharge port through a filter.

[0006] Although the cited invention can filter out foreign matter remaining at the bottom of the fish tank to a certain extent, and since water will not be discharged to the outside of the fish tank during operation and there is no need to supply additional water separately, the filter for filtering foreign matter is in the form of cotton and therefore cannot function in a short period of time. In particular, since the water flowing into the main body will be discharged from the upper side of the filter, the foreign matter filtered by the filter will float, resulting in the problem that the floating foreign matter will flow back into the fish tank during the cleaning process using the cited invention and / or when the cited invention is removed from the fish tank after cleaning. Summary of the Invention

[0007] Technical issues

[0008] The present invention aims to solve the existing problems as described above and provide a fish tank foreign matter extractor that can remove the fish excrement and feed remaining in the fish tank without performing a water change process and will not cause filter clogging, and can prevent foreign matter filtered through the filter from flowing back into the fish tank.

[0009] Technical Solutions

[0010] In order to achieve the above-mentioned purpose, the foreign body extractor in the fish tank of the present invention includes: a main body, which can allow water to flow in through an inlet pipe equipped from the inside to the bottom, and the inflowing water is discharged through a discharge port via a filter equipped inside; the filter surrounds the inlet pipe and is separated from the side of the main body, and the discharge port is formed on the lower side of the filter.

[0011] In addition, the lower portion of the main body may be formed of a lower body in a downwardly convex hemispherical shape with an inlet pipe passing through and an outlet formed outside the inlet pipe, and the outer edge of the lower end of the filter may contact the curved surface of the lower body.

[0012] In addition, the discharge port may be formed through the lower body at a position adjacent to the inner circumference of the filter, and a placement protrusion may be formed in the lower body along the outer edge of the discharge port in an annular shape and in contact with the lower end of the filter.

[0013] In addition, the lower body may be equipped with a guide tube that is tubular in shape and has a lower end located on the inner side of the discharge port and an upper end located near the upper end of the inlet pipe provided on the inner side, and can allow a filter to be embedded on the outside. The filter can be made of sponge material and formed with a length that allows the upper end to be located on the upper side of the guide tube when the lower end is supported by a raised portion. The main body may be equipped with a filter fixing member that is coupled to the upper end of the guide tube while pressurizing the filter protruding toward the upper side of the guide tube downward.

[0014] Furthermore, the filter may be formed in a cylindrical shape having a specific thickness and a hollow portion extending through the longitudinal direction, and may have a discharge flow path formed recessed along the longitudinal direction of the inner peripheral surface.

[0015] In addition, it may also include: a shelf, which is equipped with a fixed pipe upward from a position separated from the bottom of the fish tank and is placed at the bottom of the fish tank; the main body can be configured in a manner that the inflow pipe is connected to the fixed pipe, so that water flows into the inflow pipe through the fixed pipe.

[0016] Effects of the Invention

[0017] Through the present invention, foreign matter filtered by the filter during the process of water in the fish tank flowing into the main body and then being discharged can remain in the main body, and the water after passing through the filter can be discharged into the fish tank through the discharge port. Therefore, in the process of removing the excrement and feed of the fish remaining in the fish tank, there is no need to supply supplementary water, that is, no water change process is required, thereby improving the convenience of users.

[0018] In addition, because it has a specific thickness, water can flow through the filter with a larger surface area. Moreover, because the foreign matter filtered by the filter in the process described above is accumulated in the main body through the space between the filter and the side of the main body, the filter can be prevented from being blocked. Furthermore, because the discharged water is discharged through the discharge port formed on the lower side of the filter, the foreign matter accumulated in the main body can be prevented from floating during the water discharge process, thereby preventing the filtered foreign matter from flowing back into the fish tank.

[0019] The present invention as described above can not only be used when the fish tank needs to be cleaned, but also can continuously filter foreign matter by placing the rack in the fish tank, thereby always keeping the fish tank clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a perspective view illustrating a foreign body extractor for a fish tank according to one embodiment of the present invention.

[0021] Figure 2 This is an exploded perspective view illustrating a foreign body extractor for a fish tank according to one embodiment of the present invention.

[0022] Figure 3 1 is a longitudinal sectional view illustrating a foreign body extractor for a fish tank according to one embodiment of the present invention.

[0023] Figure 4 This is a perspective view illustrating a filter suitable for use in the fish tank foreign body extractor of the present invention.

[0024] Figure 5 Yes Figure 3 An enlarged view of part A is shown.

[0025] Figure 6 This is a cutaway oblique view illustrating the lower body suitable for use in the fish tank foreign body extractor of the present invention.

[0026] Figure 7 This is an illustrative diagram illustrating the flow of water and air into and out of the foreign matter extractor in the fish tank of the present invention.

[0027] Figure 8 This is an illustrative diagram illustrating a usage state of the foreign matter extractor in a fish tank according to one embodiment of the present invention.

[0028] Figure 9 It is an oblique view illustrating the foreign body extractor in a fish tank according to another embodiment of the present invention.

[0029] Figure 10 It is a longitudinal sectional view illustrating the foreign matter extractor in a fish tank according to another embodiment of the present invention.

[0030] Figure 11 This is an exploded perspective view illustrating a shelf suitable for use in the fish tank foreign body extractor of the present invention.

[0031] Figure 12 This is an illustrative diagram illustrating a usage state of the foreign matter extractor in a fish tank according to another embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention provides a foreign matter extractor for a fish tank, which is characterized in that it can remove the excrement and feed of fish remaining in the fish tank without performing a water change process and without causing filter clogging, and can prevent foreign matter filtered by the filter from flowing back into the fish tank. The extractor comprises: a main body, through which water can flow in through an inlet pipe provided from the inside to the bottom, and the water flowing in is discharged through a discharge port via a filter provided inside; the filter surrounds the inlet pipe and is separated from the side of the main body, and the discharge port is formed on the lower side of the filter, so that foreign matter filtered by the filter is accumulated in the main body through the space between the main body and the side of the main body, and the water after passing through the filter is discharged into the fish tank through the discharge port.

[0033] The scope of the claims of the present invention is not limited to the embodiments described below, and those skilled in the relevant technical field can make various modifications without departing from the technical spirit of the present invention.

[0034] Next, refer to the attached Figures 1 to 12 The foreign body extractor in the fish tank of the present invention is described in detail.

[0035] like Figures 1 to 3 As shown, the foreign body extractor for fish tanks of the present invention comprises: a main body (100) formed in a cylindrical shape of a specific length; preferably, at least a portion of the side surface of the main body (100) is formed in a transparent or translucent manner so that the user can check the interior. As an example of the main body (100) as described above, it can include: an intermediate body (100b) formed in a cylindrical shape with a hollow interior and open at both ends; an upper body (100a) formed in an upwardly protruding hemispherical shape and coupled to the upper end of the intermediate body (100b); and a lower body (100c) formed in a downwardly protruding hemispherical shape and coupled to the lower end of the intermediate body (100b).

[0036] like Figures 1 to 3 As shown, the main body (100) is provided with an inflow pipe (110) formed in a tubular shape from the inside to the bottom, a filter (120) is provided inside and a discharge port (130) is formed, so that water contained in the fish tank flows into the main body (100) through the inflow pipe (110) and then passes through the filter (120) and is discharged through the discharge port (130).

[0037] Specifically, the inflow pipe (110) is formed in a solid tubular shape, with a portion located inside the main body (100) and the remaining portion protruding downward from the main body (100), thereby penetrating the bottom surface of the main body (100). As an example, the inflow pipe (110) penetrates the center of the lower body (100c) in the vertical direction. In this case, the upper end of the inflow pipe (110) is located at a position corresponding to half the length of the main body (100) or slightly below it, so that water is preferably filled only partially inside the main body (100).

[0038] The filter (120) is formed in a cylindrical shape with a specific thickness and a hollow portion formed along the length direction for the inlet pipe (110) to pass through, thereby increasing the surface area in contact with water. Thus, foreign matter such as fish excrement and feed contained in the water flowing from the fish tank can be effectively filtered through the filter (120). Furthermore, the filter (120) can be made of a variety of materials, but is preferably made of a porous sponge material that can deform when subjected to force.

[0039] In addition, if Figure 2 as well as Figure 4 As shown, a discharge flow path (121) may be formed in the filter (120) along the longitudinal direction of the inner peripheral surface, and a plurality of discharge flow paths (121) may be formed at specific intervals. The discharge flow paths (121) allow water to flow smoothly after filtering foreign matter through the filter (120), and the performance of the filter concentrated in the lower part of the filter (120) can be distributed to the entire filter (120).

[0040] like Figure 3 as well as Figure 7 As shown, the filter (120) as described above surrounds the inflow pipe (110) and is spaced from the side of the main body (100). Moreover, by forming a space between the filter (120) and the side of the main body (100), foreign matter that is not filtered by the filter (120) can move downward through the space between the filter (120) and the side of the main body (100) and accumulate in the main body (100). In addition, as Figure 5As shown, the outer edge of the lower end of the filter (120) can contact the curved surface of the lower body (100c). In this way, the space between the side surface of the filter (120) and the side surface of the main body (100) for foreign matter to accumulate and the space between the bottom surface of the filter (120) and the lower end of the lower body (100c) can be separated from each other.

[0041] like Figure 3 as well as Figure 7 As shown, the discharge port (130) is formed on the main body (100) at the lower side of the filter (120). As an example, the discharge port (130) can be formed through the lower side of the filter (120) placed on the bottom surface of the main body (100), that is, the lower body (100c), and can be formed along the outer side adjacent to the inlet pipe (110) that passes through the center of the lower body (100c). Specifically, the discharge port (130) can be formed through the lower body (100c) at a position adjacent to the inner circumference of the filter (120).

[0042] In addition, the main body (100) may be equipped with a structure that allows the filter (120) to be more stably placed on the lower body (100c) around the discharge port (130) and further blocks the discharge of foreign matter. As an example, Figure 5 as well as Figure 6 As shown, the lower body (100c) can be equipped with a placement protrusion (140) that protrudes upward in an annular shape along the outer edge of the discharge port (130) and whose upper end contacts the lower end of the filter (120). In this way, the outer edge of the lower end of the filter (120) will contact the curved surface of the lower body (100c), and a portion of its bottom surface will also contact the upper end of the placement protrusion (140), so that the placement state can be maintained stably. In addition, although the outer edge of the lower end of the filter (120) contacts the curved surface of the lower body (100c), some of the fine foreign matter may move through the gap to the side of the discharge port (130), and the placement protrusion (140) can prevent the fine foreign matter mentioned above from being discharged through the discharge port (130).

[0043] In the main body (100) as described above, the discharge port (130) is formed on the lower side of the filter (120), so that Figure 7 As shown, the water after passing through the filter (120) will be discharged to the bottom of the main body (100). When the foreign matter in the fish tank is removed by using the present invention as described above, as shown in FIG. Figure 8As shown, the operation is performed in a state where a portion of the main body (100) is immersed in water, and the water discharged through the discharge port (130) is discharged into the fish tank. That is, the water that flows into the fish tank in the main body (100) to filter foreign matter is discharged back into the fish tank in a state where only foreign matter has been filtered. Therefore, there is no need to separately supply supplementary water, that is, no water replacement process is required, thereby improving user convenience.

[0044] At the same time, the water is discharged below the main body (100) in a state separated from the filtered foreign matter. Therefore, the foreign matter accumulated in the main body (100) can be prevented from floating during the cleaning process of the fish tank. Moreover, when the fish tank is cleaned and the main body (100) is removed from the fish tank, the foreign matter will not float, thereby preventing the filtered foreign matter from flowing back into the fish tank. In addition, the lower body (100c) constituting the lower part of the main body (100) where the foreign matter can accumulate can be constructed in a detachable manner. After cleaning, the lower body (100c) can be separated and washed. Therefore, the lower body (100c) can be separated and easily washed in a state where foreign matter accumulates. In addition, the filter (120) is separated from the discharge port (130), and the water in the lower body (100c) will be filled to the lower side of the filter (120), so that the water can be discharged more easily through the discharge port (130).

[0045] Furthermore, the main body (100) of the present invention may be equipped with a guide tube (150) for arranging a portion of the inflow tube (110) located in the main body (100) at a predetermined position and stably fixing the filter (120). Figure 2 、 Figure 3 as well as Figure 6 As shown, as an example of the guide tube (150), it can be formed in a tubular shape with both ends open and the interior hollow, and its lower end can be formed upward from the inner side of the discharge port (130), that is, the center of the lower body (100c). In this case, the diameter of the guide tube (150) is larger than the diameter of the inlet tube (110), and the inner side can accommodate the inlet tube (110), and its upper end is located near the upper end of the inlet tube (110) provided inside.

[0046] In addition, if Figure 5 as well as Figure 6As shown, a fixing protrusion (151) for fixing the inflow pipe (110) inserted into the inner side can be formed on the inner peripheral surface of the lower end of the guide pipe (150). A plurality of fixing protrusions (151) are spaced apart and contact the side surface of the inflow pipe (110) by protruding from the inner peripheral surface of the lower end of the guide pipe (150). That is, the inflow pipe (110) inserted into the inner side of the guide pipe (150) can be forcibly embedded and fixed by the plurality of fixing protrusions (151). Moreover, as required, the upper end of the inflow pipe (110) can not only be aligned with the guide pipe (150), but also be lower than or higher than the guide pipe (150).

[0047] The filter (120) can be embedded in the outer side of the guide tube (150), and the filter (120) embedded in the outer side of the guide tube (150) can be formed with a length such that the upper end can be located on the upper side of the guide tube (150) when it is placed in the lower body (100c) (that is, the lower end is supported by the placement protrusion (140)). The filter (120) formed with a length greater than the guide tube (150) as described above will be compressed and equipped in the main body (100). For this purpose, as Figures 1 to 3 As shown, the main body (100) may be equipped with a filter fixing member (160) coupled to the upper end of the guide pipe (150) while pressurizing the filter (120) protruding toward the upper side of the guide pipe (150) downward.

[0048] As an example of the filter fixing member (160), it can be formed in a plate-like shape with a raised upper side surface and covering the upper side surface of the filter (120), and an inlet with a diameter corresponding to that of the inlet pipe (110) can be formed in the center.

[0049] Furthermore, a coupling protrusion may be formed in the filter fixing member (160) so as to be coupled to the guide tube (150) by protruding downward from the bottom surface and being inserted between the guide tube (150) and the inflow tube (110). Thus, after the filter (120) and the guide tube (150) are inserted and coupled, the user can place the filter fixing member (160) on the upper side of the filter (120) and pressurize the filter (120) until it is coupled to the guide tube (150), thereby firmly fixing the filter (120) to the main body (100). Furthermore, the compressed filter (120) can filter out foreign matter with smaller particle sizes, thereby improving the performance of the filter.

[0050] In addition, in order to form a water flow that causes water to flow into the main body (100) and then be discharged, various methods can be applied. As an example, a method of utilizing air can be applied.

[0051] Specifically, if Figure 1 as well as Figure 3 As shown, an air supply pipe (170) for supplying air to the inlet pipe (110) can be provided in the main body (100). The air supply pipe (170) can be made of a sturdy material, but preferably made of a soft material and transparent. In addition, an air bubble stone (171) for forming a large number of bubbles can be provided at the end of the air supply pipe (170) located in the inlet pipe (110), thereby ensuring smooth flow of air. The air supply pipe (170) as described above is inserted into the main body (100) through the mounting hole formed through the center of the upper body (100a), so that the air bubble stone (171) is located in the inlet pipe (110). Therefore, an upward air flow can be formed in the inlet pipe (110) by means of the buoyancy of the air supplied through the air supply pipe (170), so that water flows into the fish tank through the inlet pipe (110).

[0052] In addition, if Figure 1 As shown, the portion of the air supply pipe (170) located outside the main body (100) may be equipped with an air regulating member (172) for regulating the amount of air supplied through the air supply pipe (170). As an example of the air regulating member (172), the entire air supply pipe (170) or only a portion thereof may be opened by rotating a screw-coupled regulating member.

[0053] In addition, if Figures 1 to 3 As shown, an air outlet (180) for discharging air to the outside around the mounting hole can be formed through the upper body (100a). The air moving upward along the inlet pipe (110) along with the water will be separated from the water at the upper part of the main body (100) and discharged to the outside through the air outlet (180). In addition, the air supply pipe (170) passing through the mounting hole can be forcibly inserted, thereby allowing the user to push or pull the air supply pipe (170) while taking into account the required flow rate, including the length of the channel for air inflow (the inlet pipe (110) or the inlet pipe (110) and the extended inlet pipe (300) described later).

[0054] In the present invention as described above, when the length of the inflow pipe (110) provided on the main body (100) is sufficient, a through hole can be formed at the lower end of the inflow pipe (110) so that the bottom material laid on the bottom of the fish tank cannot pass through and only water mixed with foreign matter can pass through, or Figure 7 As shown, the inflow cover (190) formed with the through hole can be detachably coupled to the lower end of the inflow pipe (110).

[0055] In the above-mentioned situation, foreign matter in the fish tank can be removed using only the main body (100).

[0056] In the case where the length of the inflow pipe (110) provided on the main body (100) is not enough to clean the fish tank, Figures 1 to 3 As shown, the present invention may further include an extended inlet pipe (300) formed in a tubular shape of a specific length and coupled to the end of the inlet pipe (110) located outside the main body (100). In this case, the extended inlet pipe (300) may be coupled not only directly to the end of the inlet pipe (110) but also indirectly to the end of the inlet pipe (110) via an extended joint 310.

[0057] The end of the inflow pipe (110) to be coupled with the extended inflow pipe (300) is in an open state and communicates with one end of the extended inflow pipe (300), while a through hole may be formed at the other end of the inflow pipe (110) or the inflow cover (190) having the through hole may be detachably coupled.

[0058] like Figure 8 As shown, the present invention as described above can extract the excrement or feed of the fish remaining at the bottom of the entire fish tank into the main body (100) while moving the main body (100) after the main body (100) is arranged in the fish tank.

[0059] In addition, the main body (100) can be placed in the fish tank to continuously filter foreign matter in the fish tank. Figures 9 to 12 As shown, it may also include: a shelf (200) placed at the bottom of the fish tank; wherein the bottom of the fish tank may refer not only to the bottom surface of the fish tank itself, but also to the bottom surface material laid on the bottom surface of the fish tank.

[0060] As an example, Figures 9 to 11 As shown, the shelf (200) may include: a shelf body (200a) formed in a cylindrical shape with an open upper side and a hollow interior; and a shelf support (200b) coupled to the lower end of the shelf body (200a) and placed at the bottom of the fish tank, and having an inflow hole (220) formed therethrough for water to flow into the interior. That is, the bottom surface of the shelf body (200a) is separated from the bottom surface of the bathtub by the shelf support (200b), and the shelf body (200a) separated from the bottom surface of the fish tank is equipped with a fixed pipe (210) formed from the bottom surface upward. Because the fixed pipe (210) is connected to the inner side of the shelf support (200b), water flowing in through the inflow hole (220a) of the shelf support (200b) can move into the fixed pipe (210).

[0061] The fixed tube (210) is formed in a tubular shape, and in order to position the inflow tube (110) or the extended inflow tube (300) inside the fixed tube (210), it is preferably formed in a tubular shape having a diameter larger than that of the inflow tube (110) or the extended inflow tube (300).

[0062] Therefore, if Figure 10 As shown, the main body (100) can be combined with the shelf (200) so that the inflow pipe (110) is connected to the fixed pipe (210), and with the help of the rising air flow of the air supplied through the air supply pipe (170), the water in the fish tank will pass through the inflow hole (220), the fixed pipe (210) and the inflow in sequence.

[0063] Furthermore, the fixing pipe (210) may protrude further from the center of the bottom surface of the shelf (200) than the upper end of the shelf body (200a). Figure 12 As shown, the space between the fixing tube (210) and the side wall of the shelf body (200a) can be filled with bottom materials or planted with aquatic plants, and the shelf (200) can maintain a stable and fixed state at the bottom of the fish tank.

[0064] like Figure 11 As shown, as an example of a shelf support (200b), it can be formed in a shape corresponding to the bottom surface of the shelf body (200a), and is formed in a plate-like shape with a coupling side wall protruding along the edge for coupling with the bottom surface of the shelf body (200a). A plurality of inflow holes (220) are formed through the coupling side wall at regular intervals, and water can be dispersed and flowed in from multiple directions through the inflow holes (220a), thereby preventing the bottom surface material from being sucked into the shelf (200).

[0065] In addition, if Figure 11 As shown, a radial flow path forming protrusion (230) can be formed on the upper side of the shelf support (200b). The flow path forming protrusion (230) can be formed in the portion corresponding to the fixed pipe (210), that is, the remaining portion except the central portion of the shelf support (200b), and can be formed to protrude from both sides adjacent to each inflow hole (220) toward the central portion of the shelf support (200b). The flow path forming protrusion (230) as described above connects the inflow hole (220) with the central portion of the shelf support (200b) and forms a flow path whose width gradually decreases toward the central portion of the shelf support (200b). Thus, when an upward airflow of air supplied through the air supply pipe (170) occurs, water in the fish tank enters the shelf support (200b) through the inflow hole (220) and flows from the center of the shelf support (200b) to the fixed pipe (210) through the flow path formed by the flow path forming protrusion (230).

[0066] As described above, the present invention Figure 8 As shown, it can be used when the fish tank needs to be cleaned, and as Figure 12As shown, the rack (200) can be placed in the fish tank to continuously filter foreign matter, thereby always keeping the fish tank clean.

[0067]

Explanation of symbols

[0068] 100: Main body

[0069] 100a: Upper body

[0070] 100b: Intermediate

[0071] 100c: lower body

[0072] 110: Inflow pipe

[0073] 120: Filter

[0074] 121: Discharge flow path

[0075] 130: Exhaust port

[0076] 140: Place the raised part

[0077] 150: Guide tube

[0078] 151: Fixed protrusion

[0079] 160: Filter fixing

[0080] 170: Air supply pipe

[0081] 171: Bubble Stone

[0082] 172: Gas regulating components

[0083] 180: Air exhaust port

[0084] 190: Inflow hood

[0085] 200: Shelf

[0086] 200a: Put the subject aside

[0087] 200b: Shelf support

[0088] 210: Fixed pipe

[0089] 220: Inflow hole

[0090] 230: Flow path forms a bulge

[0091] 300: Extended inlet pipe

[0092] 310: Extension connector

Claims

1. A foreign body extractor for fish tanks, characterized in that: include: The main body (100) can allow water to flow in through an inlet pipe (110) provided downward from the interior, and the inflowing water is discharged through a discharge port (130) via a filter (120) provided inside; The lower portion of the main body (100) is formed of a lower body (100c) in a downwardly convex hemispherical shape, through which the inlet pipe (110) is passed, and the outlet (130) is formed on the outside of the passed inlet pipe (110). The filter (120) surrounds the inlet pipe (110) and is spaced apart from the side of the main body (100), and the outer edge of the lower end thereof contacts the curved surface of the lower body (100c). The outlet (130) is formed on the lower side of the filter (120), and foreign matter filtered by the filter (120) is accumulated in the main body (100) through the space between the filter (120) and the side of the main body (100), while water after passing through the filter (120) is discharged into the fish tank through the outlet (130). The discharge port (130) is formed through the lower body (100c) at a position adjacent to the inner peripheral surface of the filter (120). A placement protrusion (140) is formed in the lower body (100c) along the outer edge of the discharge port (130) and is formed in an annular shape and contacts the lower end of the filter (120). The water flows into the main body (100) along a longitudinal direction passing through the upper and lower parts of the main body (100) and is discharged from the discharge port (130) located at the lower side of the filter (120). The lower body (100c) is provided with a guide tube (150) having a tubular shape, a lower end of which is located inside the discharge port (130) and an upper end of which is located near the upper end of the inlet tube (110) provided inside and allows the filter (120) to be embedded outside. The filter (120) is made of a sponge material and is formed to have a length such that the upper end is located above the guide tube (150) when the lower end is supported by the protrusion (140). The main body (100) is provided with a filter fixing member (160) which is coupled to the upper end of the guide tube (150) while pressurizing the filter (120) protruding toward the upper side of the guide tube (150) downward. The filter (120) is formed in a hollow cylindrical shape along the longitudinal direction, and a discharge flow path (121) is formed by being recessed along the longitudinal direction of the inner peripheral surface.

2. The fish tank foreign body extractor according to claim 1, characterized in that: Also includes: A shelf (200) is provided with a fixing pipe (210) upward from a position spaced apart from the bottom of the fish tank and is placed at the bottom of the fish tank; The main body (100) is configured in such a way that the inflow pipe (110) is communicated with the fixed pipe (210), so that water flows into the inflow pipe (110) through the fixed pipe (210).

Images