CN223995604U

CN223995604U - Filter for fish tank

Info

Publication number: CN223995604U
Application number: CN202423316908.1U
Authority: CN
Inventors: 邹峰; 邹康
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-12-31
Filing date: 2024-12-31
Publication date: 2026-03-17
Anticipated expiration: 2034-12-31

Abstract

This aquarium filter relates to the field of water filtration technology and addresses the problem in existing technologies where it is difficult to flush out waste from the rotating filter frame during backwashing. The aquarium filter includes a water container, a rotating frame, and a flushing nozzle. The rotating frame is cylindrical and rotatably mounted within the water container. The rotating frame is horizontally positioned and carries the filter screen. The flushing nozzle faces the rotating frame. An internal guide member is provided within the rotating frame, and the rotating frame rotates relative to this guide member. The guide member includes a flow channel, which faces upward and is horizontally inclined. A drain nozzle is connected to the lower end of the flow channel. The beneficial effect is that it facilitates the discharge of waste from the interior of the rotating frame.

Description

Filter for fish tank

Technical Field

The utility model relates to the technical field of water quality filtration, in particular to a fish tank filter.

Background

The floating ball valve can also be a floating ball valve, and the valve can be driven to open or close by the buoyancy of the floating ball.

The floating ball switch is electrically connected with the water level sensor, and the floating ball switch generates a switching value signal (pulse signal, digital signal) in the water level change process. The switching value signal is a key control signal in the automatic control process.

When using a aquarium to raise fish or other aquatic animals and/or plants, a filter is required to filter the water quality, even continuously.

The Chinese patent publication No. CN 221264878U discloses a miniature full-automatic filtering and sterilizing microfilter, which is a filter for fish tank. A miniature full-automatic filter and sterilizing micro-filter comprises a roller (also called a rolling framework), a back flushing nozzle and a sewage outlet, wherein the sewage outlet is connected with an internal sewage collecting tank. The roller may also be referred to as a rolling frame, which is used to carry the filter screen. The miniature full-automatic filtering and sterilizing microfilter has the working principle that water to be filtered is led to the inner ring of a roller, and the roller rotates during filtering, and the filtering work is carried out through a filter screen carried by the roller. The back flush nozzle is used for back flushing the filter screen so as to ensure the smoothness of the filtering operation. The waste tank may also be referred to as a waste storage device.

The above prior art has the following problems:

1. Due to the water permeability of the filter screen, when back flushing, waste is difficult to smoothly flush out of the roller (difficult to flush to the sewage outlet), and the problem of how to flush the waste out of the roller to the sewage outlet in the prior art is not solved.

2. The back flushing operation is generally carried out once in a blocking time, before back flushing, all the wastes are concentrated in the drum, and besides the possibility that the wastes are discharged out of the drum through back flushing, no other way exists, namely, before back flushing, the wastes are not discharged out of the drum at all.

3. During the back flushing process, the waste and all the water used for back flushing are discharged into the sewage collecting tank, and the water is wasted and the sewage draining tank is required to be cleaned or poured more frequently.

4. The waste is in a relatively solid state, and some components (such as some sheet moss or some large particles) which are easy to block a sewage pipeline exist in the waste, namely the problem of unsmooth sewage exists.

Disclosure of utility model

The utility model aims to provide a fish tank filter which is used for solving the problem that wastes are difficult to wash out of a rolling framework when a filter screen mounted on the rolling framework is backwashed in the prior art.

The technical scheme adopted for solving the technical problems is as follows:

The fish tank filter comprises a water container, a rolling framework and a flushing nozzle, wherein the rolling framework is cylindrical, the rolling framework is rotatably arranged in the water container and is transversely arranged, the rolling framework is used for carrying a filter screen, the flushing nozzle faces the rolling framework, a guide piece is arranged in the rolling framework, the rolling framework is opposite to the guide piece and is rotatably arranged, the guide piece comprises a guide groove, the guide groove is upwards arranged, the guide groove is transversely inclined, and the lower end of the guide groove is connected with a sewage draining nozzle.

The sewage treatment device has the beneficial effects that in the back flushing process, sewage (containing waste) falls down from top to bottom in the rotating framework, part of sewage falls to the diversion trench on the diversion piece, flows to the sewage discharge nozzle through the diversion trench, and flows out of the sewage discharge nozzle. In addition, because the rolling of the rotating framework, the waste falling to the bottom inside the rolling framework can rise to the upper part of the flow guiding piece again along with the rotating framework, and the possibility of falling into the flow guiding groove is provided, so that the waste is gradually collected in the flow guiding groove no matter in a back flushing process or a normal filtering process, and when the flow guiding groove has water flow again, the waste is flushed to the sewage nozzle, and further the waste is discharged from the inside of the rotating framework.

Further, the water container comprises an upper partition piece and a lower partition piece, the upper partition piece and the lower partition piece divide the interior of the water container into an upper volume cavity and a lower volume cavity, the rolling framework is rotatably connected in the upper volume cavity, a secondary filtering device is arranged in the lower volume cavity, and the secondary filtering device comprises a water bucket and a filter element piece arranged in the water bucket;

The water bucket comprises a water inlet cavity, the water inlet cavity is positioned between the bottom of the inner cavity of the water bucket and the bottom of the filter element piece, and a flow guide pipeline is arranged between the upper volume cavity and the water inlet cavity.

The filter screen on the rotating framework carries out coarse filtration, and the secondary filter device carries out finer filtration, so that the size of the filter holes of the filter screen on the rotating framework is allowed to be larger, the smooth degree of filtered water flow is facilitated, and the improvement of the filtering quality is facilitated.

Further, the filter element comprises a filtering part, an upper pore plate and a lower pore plate, the filtering part can be squeezed, the upper pore plate is located at the top of the filtering part, the lower pore plate is located at the bottom of the filtering part, the secondary filtering device is provided with a squeezing mechanism for squeezing water from the filtering part, a backflow port is arranged at the bottom of the water inlet cavity, a backflow pipeline is arranged between the backflow port and the inside of the rolling framework, and the backflow pipeline comprises a first water pump.

The automatic extrusion cleaning device has the advantages that the automatic extrusion cleaning device can automatically extrude and clean the filtering part, and the corresponding cleaning work can be performed without frequently disassembling the second filtering device. The utility model is beneficial to ensuring the reliability and the persistence of the work of the utility model.

Further, the bottom of cask is equipped with the leg portion, and leg portion links firmly the bottom of lower volume chamber, lower orifice plate slides and sets up the inner chamber of cask is used for sliding from top to bottom in the cask, wringing mechanism includes guide bar group, second motor and lead screw, guide bar group is relative the fixed setting of water container, guide bar group vertical arrangement, guide bar group is used for lower orifice plate's upper and lower slip is led, the lead screw with guide bar group is parallel, and guide bar group disposes the locating part, goes up the locating part and is located the top of going up the orifice plate, the lead screw passes go up the orifice plate with filter unit, be equipped with the nut spare on the orifice plate down, the nut spare cooperates with the lead screw, and the second motor is used for driving the lead screw and rotates.

The squeezing mechanism has the advantage that the squeezing mechanism is favorable for more comprehensive squeezing work of the filtering part.

Further, the sewage treatment device comprises a funnel piece, wherein the funnel piece is positioned below the sewage treatment nozzle and is used for receiving the discharge of the sewage treatment nozzle;

The lower extreme of funnel spare is equipped with auger mechanism, and auger mechanism includes auger section of thick bamboo, auger spare and auger actuating mechanism, auger section of thick bamboo with funnel spare intercommunication, auger spare rotate to be connected in auger section of thick bamboo, and auger actuating mechanism is used for driving the rotation of auger spare, and auger section of thick bamboo includes the discharge gate.

The waste discharge device has the advantages of being beneficial to smooth discharge of waste and avoiding blockage of a discharge pipeline.

Further, an overflow port is arranged on the funnel piece.

The water-saving device has the advantages of facilitating overflow of clear water in the funnel, facilitating collection and reuse, and saving water resources.

Further, a first end cover is arranged at one end of the rolling framework, a second end cover is arranged at the other end of the rolling framework, the first end cover is rotatably arranged relative to the rolling framework, the second end cover is fixedly arranged relative to the rolling framework, the first end cover is fixedly connected to the water container, the sewage draining nozzle penetrates through the first end cover, the return pipeline penetrates through the first end cover, a water supply pipe penetrates through the second end cover, and the first end cover is rotatably arranged relative to the water supply pipe.

The water tank has the advantages of facilitating the rotation of the rotating framework in the water tank, and also facilitating the introduction of related pipelines into the rotating framework without affecting the rotation of the rotating framework.

Further, the fish tank further comprises a floating ball valve, an inlet of the water feeding pipe is connected with an outlet of the floating ball valve, an inlet of the floating ball valve is connected with a bearing pipe, the floating ball valve is located in the lower volume cavity and used for controlling to open and close through the water level of the lower volume cavity, the bearing pipe extends out of the water container and is used for being connected with the fish tank, a second water pump is arranged in the lower volume cavity and used for sending water in the lower volume cavity back to the fish tank.

The floating ball valve has the advantages that the floating ball valve can control the safe water level of the lower volume cavity and even the whole water container, avoid overflowing and facilitate safe filtration.

Further, a vertical partition plate is arranged in the lower volume cavity, the secondary filtering devices are distributed on one side of the vertical partition plate, the floating ball valve and the second water pump are located on the other side of the vertical partition plate, and the vertical partition plate is used for storing the water level height of one side of the secondary filtering devices and then overflows to the other side.

The filter part is easy to be immersed in water, and the immersion is easy to ensure the cleaning effect in the extrusion cleaning process.

Further, the upper volume cavity is provided with a float switch, the float switch is used for feeding back the condition that the water level of the upper volume cavity is higher than the height of the lower end of the diversion trench, the float switch is used for controlling the on-off of a first electromagnetic valve, and the first electromagnetic valve is used for controlling the on-off of a waterway between the faucet pipe and the fish tank.

The funnel has the advantages that the excessive water flowing into the funnel is avoided, and the overflow condition is avoided.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view in section A-A of FIG. 2;

FIG. 4 is a schematic view in section B-B of FIG. 2;

FIG. 5 is a schematic diagram of portion C of FIG. 4;

FIG. 6 is a schematic perspective view of a wringing mechanism;

FIG. 7 is a schematic perspective view of a funnel;

In the figure, a water container, an upper partition piece, a lower partition piece, an upper volume cavity, a lower volume cavity, a 14 upper water pipe, a 141 communicating device, a 15 floating ball valve, a 16 bearing pipe, a 17 second water pump, a 18 vertical partition plate, a 2 rolling framework, a 21 first end cover, a 211 inner piece, a 212 outer piece, a 22 second end cover, a 3 flushing nozzle, a 31 third water pump, a 4 flow guiding piece, a 5 blow-down nozzle, a 6-stage filtering device, a 61 bucket, a 62 flow guiding pipeline, a 63 filtering part, a 64 upper pore plate, a 65 lower pore plate, a 651 nut piece, a 66 return port, a 67 return pipeline, a 68 supporting leg, a 69 carrying plate, a 691 guide rod, a 692 second motor, a 693 screw rod, a 694 upper limiting piece, a 7 funnel piece, a 71 overflow port, an 8 auger barrel and a 82 first motor are shown.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The term "coupled" as used in the description of the present utility model may be a direct connection or may be a connection via an intermediate connection.

As shown in fig. 1, the water container 1 in fig. 1 is transparent as a whole for convenience of showing its internal structure. In the actual production process, the transparent acrylic plate can be used for manufacturing the water container. Glass or other materials may also be used. The water container 1 is also a "jar" in nature, and its manufacturing solution (even including some removable solutions of the plates) belongs to the mature prior art and is not described here in detail.

For the cylinders referred to in the figures other than fig. 1, the corresponding views are shown in a non-transparent manner.

As shown in fig. 1 to 4, the aquarium filter includes a water container 1, a rolling frame 2, and a washing nozzle 3. The rolling framework 2 is cylindrical, and the rolling framework 2 is rotatably arranged in the water container 1. The rolling framework 2 is transversely arranged, the rolling framework 2 is used for carrying a filter screen, the filter screen is arranged along the circumference of the rolling framework 2, threaded holes can be formed in the rolling framework 2, the filter screen is pressed on the rolling framework through screw members, and the filter screen can be connected to the rolling framework 2 through other modes such as adhesion. When in filtration, the water to be filtered is drained to the inside of the rolling framework and flows out through the filter screen to be filtered. The flushing nozzle 3 is arranged towards the rolling framework 2 and is used for carrying out back flushing operation on the filter screen carried on the rolling framework 2. The inside of rolling skeleton 2 is equipped with guide piece 4, and rolling skeleton 2 rotates the setting relative guide piece 4, and guide piece 4 includes the guiding gutter, and the guiding gutter sets up, and the guiding gutter horizontal slope sets up, and the low end of guiding gutter is connected with blowdown mouth 5. The flushing nozzle 3 is arranged above the diversion trench, and the flushing nozzle 3 is arranged towards the diversion trench as much as possible.

As shown in fig. 1 to 4, during back flushing, water is sprayed to the rolling framework 2 through the flushing nozzle 3, and meanwhile the rotating framework 3 rotates, sewage falls down from top to bottom in the rotating framework 2 during back flushing, part of the sewage falls to the diversion trench on the diversion piece 4, flows to the sewage discharge nozzle 5 through the diversion trench, and flows out of the sewage discharge nozzle. In addition, due to the rolling of the rotating skeleton 3, the waste falling to the bottom inside the rotating skeleton 3 can rise to the upper part of the guide piece again along with the rotating skeleton, and the possibility of falling into the guide groove is provided, so that the waste can be collected in the guide groove no matter in a back flushing process or a normal filtering process, and when the guide groove has water flow again, the waste is flushed to the sewage nozzle 5, and further the waste is discharged from the inside of the rotating skeleton. Typically, the rotating frame 2 comprises transverse ribs (the filter screen is outside and the transverse fixing members are on the inner side of the filter screen), which can prevent the waste from sliding along the circumferential direction of the rotating frame during the rotation of the rotating frame 2, so as to bring the waste to a high place, and can also increase the capacity of bringing the waste to the high place by purposely arranging such transverse raised strips inside the rotating frame.

As shown in fig. 1 to 4, the water container 1 includes upper and lower partition members 11, the upper and lower partition members 11 partition the inside of the water container 1 into an upper volume chamber 12 and a lower volume chamber 13, the rolling frame 2 is rotatably connected in the upper volume chamber 12, and a secondary filter device 6 is provided in the lower volume chamber 13, the secondary filter device 6 including a water tub 61 and a filter element provided in the water tub 61. The water bucket 61 includes a water inlet chamber located between the bottom of the inner chamber of the water bucket 61 and the bottom of the cartridge member. A guide pipeline 62 is arranged between the upper volume cavity 12 and the water inlet cavity, a hole site for penetrating the guide pipeline 62 is arranged on the upper partition 11 and the lower partition 11, the upper end of the guide pipeline 62 is arranged at the bottom of the upper volume cavity 12, and a leakage-proof measure is arranged for preventing water in the upper volume cavity from leaking to the lower volume cavity 13 along the outer wall of the guide pipeline 62. In the filtering process of the rotary framework 2 carrying the filter screen, the filtered water falls into the upper volume cavity 12, flows into the water inlet cavity of the water bucket 61 from the upper volume cavity 12 through the flow guide pipeline 62, flows out of the water bucket through the filter element, flows into the lower volume cavity, and is subjected to secondary filtering. The filter screen carried on the rotating frame 2 performs coarse filtration, and the secondary filter device 6 performs finer filtration, so that the size of the filter holes of the filter screen carried on the rotating frame 2 is allowed to be larger, and the smoothness of the filtered water flow is facilitated. Between the lower volume 13 and the flushing head 3, a line for supplying water to the head 3 is provided, which is provided with a third water pump 31, which takes water from the lower volume, which line passes through the upper and lower partition 11 and is subjected to a leak-proof treatment at the point of passage.

As shown in fig. 1, 2 and 4, the cartridge includes a filter portion 63, an upper orifice plate 64 and a lower orifice plate 65. The filter 63 can be squeezed, and in this embodiment, the filter 63 is made of a sponge material. The upper orifice plate 64 is located at the top of the filter part 63 and the lower orifice plate 65 is located at the bottom of the filter part 63. The secondary filter device 6 is provided with a wringing mechanism for wringing the filter portion 63. The bottom of the inlet chamber is provided with a return port 66. A return line 67 is provided between the return port 66 and the interior of the rolling framework 2 (only the section of the return line 67 connected to the rotating framework 2 is illustrated in the drawing, and the section connected to the return port 66 is omitted, and the side wall of the lower volume chamber 13 is provided with a hole site for the section to pass into the lower volume chamber 13.) the return line 67 comprises a first water pump. The filtering part 63 can be automatically cleaned by the squeezing mechanism, the sewage in the filtering part 63 is squeezed out, the automatic cleaning of the filtering part is facilitated, and the first water pump is used for sending the squeezed sewage from the filtering part 63 back to the inside of the rotating framework 2, so that the secondary filtering work is performed. If necessary, the return line 67 may be provided with an electrically controlled valve which controls the on-off of the return line, and which is in a closed state during the time period when the filter portion is not being deployed for cleaning.

As shown in fig. 4, the bottom of the water tub 61 is provided with a leg portion 68, and the leg portion 68 is fixedly connected to the bottom of the lower volume chamber 13 by means of gluing. The lower orifice plate 65 is slidably disposed in the inner cavity of the water tub 61 for sliding up and down in the water tub 61.

As shown in fig. 4 and 6, the wringing mechanism includes a guide bar group, a second motor 692, and a screw 693. The guide rod group is fixedly arranged relative to the water container 1, three guide rods 691 which are parallel to each other are arranged as the guide rod group, the three guide rods 691 are fixedly connected to the carrying plate 69, and the carrying plate is fixedly stuck to the bottom of the upper and lower separating pieces 11. The guide rod group is vertically arranged and is used for guiding the up-and-down sliding of the lower pore plate 65. The lead screw 693 is parallel to the guide bar set, which is configured with an upper stop 694 located above the upper orifice plate for blocking the upper orifice plate 64 from sliding upward. The screw rod 693 passes through the upper orifice plate 64 and the filtering part 63, the lower orifice plate 65 is provided with a nut member 651, the nut member 651 is matched with the screw rod 693, and the second motor 692 is used for driving the screw rod 693 to rotate. When the wringing mechanism executes the wringing action, the second motor 692 drives the screw rod 693 to rotate, so as to lift the lower orifice plate 65, and the filtering part is gradually extruded due to the blocking of the upper orifice plate 64 by the upper limiting piece 694, so that the wringing action is completed. After the squeezing action is completed, the second motor 692 is reversed, the lower orifice plate 65 is driven to move downwards for resetting, and after resetting, the sponge filtering part 63 can recover the shape under the elasticity (most of the squeezable filter cores have the elastic characteristics).

As shown in fig. 1, 2, 3, 4 and 7, the present utility model comprises a funnel 7. A funnel 7 is located below the discharge spout 5 for receiving the discharge of the discharge spout 5. The lower extreme of funnel piece 7 is equipped with auger mechanism, and auger mechanism includes auger section of thick bamboo 8, auger spare and auger actuating mechanism, links firmly a support on auger section of thick bamboo 8, and this support carries on first motor 82, respectively sets up synchronous pulley on first motor 82 and auger spare, connects the hold-in range between these two synchronous pulleys, and then uses as auger actuating mechanism. The auger barrel 8 is communicated with the funnel piece 7, the auger piece is rotationally connected in the auger barrel 8, and the auger driving mechanism is used for driving the auger piece to rotate. Auger barrel 8 includes a discharge port 81. The waste discharged from the sewage discharging nozzle 5 falls into the funnel part 7 and is discharged under power and pressure through the auger mechanism, so that smooth discharge of the waste is facilitated, and the blockage of a discharge pipeline is avoided. In actual use, a hose can be connected to the outlet 81, which is introduced into the external trash can for receiving waste. The funnel member 7 is provided with an overflow port 71, waste is flushed into the funnel member 7 by water flow, the waste can be settled in the funnel, clean water overflows through the overflow port 71 after settlement, in actual use, the overflow port is connected with a pipeline which extends into the lower volume cavity 13 (an electric control valve can be arranged on the pipeline, when the water in the funnel member needs to settle, the electric control valve is closed firstly, and when the funnel member needs to drain, the electric control valve is opened again), and the overflowed clean water returns to the lower volume cavity, and the clean water in the lower volume cavity is returned to the fish tank. The hose connected to the discharge port 81 is set by extending upward a section of the hose to be extended upward to a height higher than the overflow port, and then sagging into the trash can.

As shown in fig. 2, 4 and 5, one end of the rolling framework 2 is provided with a first end cover 21, and the other end of the rolling framework 2 is provided with a second end cover 22. The first end cover 21 is rotatably arranged relative to the rolling framework 2, the first end cover 21 is assembled through the inner piece 211 and the outer piece 212, the inner piece 211 and the outer piece 212 are connected through a plurality of screws, a circular groove is formed between the inner piece 211 and the outer piece 212, the rolling framework 2 is rotatably connected in the circular groove, and the outer piece 212 is fixedly connected to the water container 1 through glue. The second end cover 22 is fixedly arranged relative to the rolling framework 2, the first end cover 21 is fixedly connected to the water container 1, the sewage nozzle 5 traverses the first end cover 21, the return pipeline traverses the first end cover 21, the second end cover 22 traverses the water supply pipe 14, and the water supply pipe 14 is used for supplying water from the fish tank into the rolling framework. The first end cap 21 is rotatably disposed with respect to the water supply pipe 14. The rotational connection of the rolling framework 2 is beneficial to the rotation of the rolling framework itself, is beneficial to the extension of relevant keys into the rolling framework without influencing the rotation of the rolling framework. A gear plate is used as the first end cap 21, which gear plate engages a pinion, which is driven by a motor and thus serves to drive the rotation of the rolling framework 2.

Referring to fig. 1, the utility model comprises a floating ball valve 15, wherein an inlet of a water supply pipe 14 is connected with an outlet of the floating ball valve 15, an inlet of the floating ball valve 15 is connected with a bearing pipe 16, the floating ball valve 15 is positioned in a lower volume cavity 13 and used for controlling opening and closing through the water level of the lower volume cavity 13, the bearing pipe 16 extends out of a water container 1 and used for being connected with a fish tank, a second water pump 17 is arranged in the lower volume cavity 13, and the second water pump 17 is used for sending water in the lower volume cavity 13 back to the fish tank. When the water tank is used, the water tank is arranged below the fish tank, is connected with the bottom of the fish tank through a pipeline, water in the fish tank flows to the faucet pipe 16 under the action of gravitational potential energy, the lower volume cavity 13 is used for temporarily storing filtered water, and after the water level in the lower volume cavity 13 reaches a certain height, the floating ball valve 15 timely cuts off a waterway between the faucet pipe 16 and the water supply pipe, so that water in the water tank 1 is prevented from overflowing, and safe filtration is facilitated.

As shown in fig. 3, the lower volume chamber 13 is provided with a vertical partition 18, the secondary filter device 6 is distributed on one side of the vertical partition 18, the floating ball valve 15 and the second water pump 17 are positioned on the other side of the vertical partition, and the vertical partition 18 is used for storing the water level of one side of the secondary filter device 6 and overflowing to the other side, which is beneficial to immersing the whole filter part of the secondary filter device 6 in water, and when the filter part is extruded and cleaned, the extrusion cleaning effect is optimal in the immersing environment. It should be noted that the height of the vertical partition 18 is lower than those holes for routing wires or pipes provided on the side wall of the lower volume chamber. The secondary filter device is facilitated.

As shown in fig. 1 and 2, the upper volume chamber 12 is provided with a float switch, and a communicating vessel communicating with the water supply pipe 14 is provided in the upper volume chamber, and the float switch is placed in the communicating vessel. The float switch is used for feeding back the condition that the water level of the upper volume cavity 12 is higher than the height of the lower end of the diversion trench, the float switch is used for controlling the on-off of the first electromagnetic valve, and the first electromagnetic valve is used for controlling the on-off of the waterway between the faucet tube 16 and the fish tank. This facilitates control of the water level in the rotating frame 2, avoiding excessive water flow into the funnel and water overflow from the funnel.

Claims

1. The fish tank filter comprises a water container, a rolling framework and a flushing nozzle, wherein the rolling framework is cylindrical, the rolling framework is rotatably arranged in the water container and is transversely arranged, the rolling framework is used for carrying a filter screen, the flushing nozzle faces the rolling framework, the fish tank filter is characterized in that a flow guiding piece is arranged in the rolling framework, the rolling framework is opposite to the flow guiding piece and is rotatably arranged, the flow guiding piece comprises a flow guiding groove, the flow guiding groove is upwards arranged, the flow guiding groove is transversely inclined, and the lower end of the flow guiding groove is connected with a sewage draining nozzle.

2. A aquarium filter as defined in claim 1 wherein the water container comprises upper and lower dividers separating the interior of the water container into an upper volume and a lower volume, the rolling framework rotatably coupled in the upper volume, the lower volume having a secondary filter device disposed therein, the secondary filter device comprising a bucket and a filter element disposed in the bucket;

3. A fish tank filter as recited in claim 2, wherein the filter element includes a filter portion, an upper orifice plate and a lower orifice plate, the filter portion is capable of being squeezed with water, the upper orifice plate is located at a top of the filter portion, the lower orifice plate is located at a bottom of the filter portion, the secondary filter device is configured with a squeezing mechanism for squeezing water from the filter portion, a return port is provided at a bottom of the water inlet chamber, a return pipeline is provided between the return port and an interior of the rolling frame, and the return pipeline includes a first water pump.

4. A fish tank filter as recited in claim 3, wherein a leg portion is provided at a bottom of the water tub, the leg portion is fixedly connected to a bottom of the lower volume chamber, the lower orifice plate is slidably disposed in an inner chamber of the water tub for sliding up and down in the water tub, the wringing mechanism includes a guide rod group, a second motor and a screw rod, the guide rod group is fixedly disposed with respect to the water container, the guide rod group is vertically disposed, the guide rod group is used for guiding the vertical sliding of the lower orifice plate, the screw rod is parallel to the guide rod group, the guide rod group is provided with an upper limit member, the upper limit member is disposed above the upper orifice plate, the screw rod passes through the upper orifice plate and the filter portion, a nut member is disposed on the lower orifice plate, the nut member is engaged with the screw rod, and the second motor is used for driving the screw rod to rotate.

5. A aquarium filter as defined in claim 1 comprising a funnel positioned below the drain nozzle for receiving emissions from the drain nozzle;

6. A aquarium filter as defined in claim 5 wherein the funnel member is provided with an overflow port.

7. A fish tank filter as recited in claim 3, wherein a first end cap is provided at one end of the rolling framework, a second end cap is provided at the other end of the rolling framework, the first end cap is rotatably disposed relative to the rolling framework, the second end cap is fixedly disposed relative to the rolling framework, the first end cap is fixedly attached to the water container, the drain nozzle traverses the first end cap, the return line traverses the first end cap, a water supply pipe traverses the second end cap, and the second end cap is rotatably disposed relative to the water supply pipe.

8. A aquarium filter as defined in claim 7 further comprising a float valve, the inlet of the upper water line being connected to the outlet of the float valve, the inlet of the float valve being connected to a faucet, the float valve being located in the lower volume for controlling opening and closing by the water level of the lower volume, the faucet extending from the water container for connection to the aquarium, a second water pump being located in the lower volume for returning water from the lower volume to the aquarium.

9. A fish bowl filter as recited in claim 8, wherein a vertical partition is disposed in the lower volume, the secondary filter is disposed on one side of the vertical partition, the float valve and the second water pump are disposed on the other side of the vertical partition, and the vertical partition is adapted to store the water level of the side on which the secondary filter is disposed and overflow the water level to the other side.

10. A aquarium filter as defined in claim 7 wherein the upper volume chamber is configured with a float switch for feeding back the condition that the water level of the upper volume chamber is higher than the low end height of the diversion trench, the float switch being used to control the on-off of the first solenoid valve for controlling the on-off of the waterway between the faucet tube and the aquarium.