KR950008064B1 - Filter device for aquarium tank - Google Patents

Abstract

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Description

Filtration device of ornamental fish tank

1 is a front view of an aquarium for aquarium fish with a filtration device.

2 is a plan view of a part of the filtration device cut.

3 is a front sectional view showing a float chamber of the filtration apparatus according to the present invention.

4 is a side cross-sectional view of the float chamber of FIG.

5 is a plan view of the float chamber of FIG.

6 is a cross-sectional view showing a state in which the float in the float chamber floats.

7 is a perspective view of the dropping port at the bottom of the float chamber.

The present invention relates to a filtration device installed on the upper portion of the tubular fish tank for circulating filtration of water in the tank. In the conventional filtration apparatus for an aquarium fish tank, the filtered water filtered in the filtration tank is returned to the tank body directly from the drop port provided at the bottom of the filtration tank, or indirectly by returning to the tank body by connecting a reflux pipe to the drop port. Pump pumps have different pumping capacity depending on the voltage and frequency of the power supply, and pumping capacity also varies depending on the water level in the tank.

Since the pumping capacity of the pumping pump, that is, the amount of water entering the filtration tank exceeds the amount of water returning from the filtration tank to the tank, it is overflowed. The pump is set larger than the diameter of the pipe.

Therefore, the falling water and the reflux pipe flow down the filtered water below the capacity of the flow originally provided. However, when the filtered water flows below the dropping or reflux tube, the air is always present in the dropping or reflux tube, and the filtered water flows in as it sucks in the air, accompanied by a loud sound of water.

For this reason, when the filtration apparatus is operated in a quiet room, the sound of water becomes a noise, especially at night, a facial disturbance.

In order to suppress the generation of the sound of water caused by the flow of the filtered water, it is conceivable to put a thick cotton wool in the drop opening, but this causes dust and the like to be clogged. It is also conceivable to put a fast pipe into the drop opening, but this cannot cope with the change in water quantity due to the reduction of the outflow area, and it is not possible to suppress the generation of noise due to the suction of air.

SUMMARY OF THE INVENTION An object of the present invention is to provide a water tank filtration device which significantly reduces the noise generated when the filtered water flows from the filtration device into the water tank body.

In order to achieve the above object, the present invention has a filtration tank installed above the tank body according to the present invention, and the water in the tank body pumped up by the pump is passed through a filtration agent in the filtration tank to filter the filtered water. In the filtration apparatus for a tubular fish tank which returns to the inside of the tank main body, the filtration chamber which loads a filter medium is formed, and it communicates with this filtration chamber, and forms a float chamber, and the lower opening part is provided in the bottom of this float chamber. A drop opening having an upper end opening is formed in communication with the reflux tube, and a float whose lower surface is in contact with the opening edge of the drop opening is installed in the float chamber so as to be able to move up and down.

In the present invention, as described above, by providing a float that can be moved up and down in the upper half of the opening edge of the drop opening, the float moves up and down in accordance with the amount of filtered water to adjust the amount of water flowing into the drop opening. By preventing the suction of air, the noise generated when flowing into the tank body is significantly reduced.

Other objects and other features of the present invention will become apparent from the following description in accordance with the accompanying drawings. In the figure, the filtration apparatus 1 installs the base frame 4 on the welt 3 of the water tank body 2, and installs the filtration tank 5 and the pump pump 6 on this base frame 4, While forming the filtration chamber 7 in this filtration tank 5, the float chamber 8 is formed, and the water in the water tank pumped up by the pump pump 6 is supplied to the filtration material 9 in the filtration chamber 7, It filters and flows the inside of the reflux pipe 10 through the float chamber 8, and returns it to a water tank.

The filtration chamber 7 is provided with a flat plate 11 at a position isolated from the bottom surface, loads the filter medium 9 on the flat plate 11, and opens the distribution container 12 above the filter medium 9. The filter medium from the plurality of distribution holes 14 which were installed along the longitudinal direction of the fruit 7 and discharged water discharged from the discharge nozzle 13 of the pump pump 6 into the distribution cylinder 12 and opened at the bottom. It was made to flow uniformly over the whole area of (9). And the filtered water filtered through the filter medium 9 flows into the float chamber 8 through the flow path 15 between the flat surface 11 and the bottom face.

The float chamber 8 is formed in one side of the filtration tank 5, As shown in FIG. 3, the short normal fall-hole 16 is formed upward on the bottom surface, and the float 17 is provided on the side surface. To form a plurality of rib-shaped guides 18 in the longitudinal direction, and a plurality of rib-shaped guides 18 to guide the float 17 in the longitudinal direction on the side, and through the hole 19 in the bottom plate ( It communicates with the flow path 15 below 11). In addition, the size of the drop port 16 is set to a size that allows the water to flow with a margin even in the state of the maximum discharge amount in consideration of the pumping capacity of the pump pump 6.

The reflux tube 10 is fitted to the lower end opening of the drop opening 16, and a nozzle 20 is formed at the lower end of the reflux tube 10 to discharge water in a fan shape in the transverse direction. The nozzle 20 is located at a position lower than the surface of the water in the tank body 2.

In other words, water is used in the water tank body 2 until the nozzle 20 is buried in water. The float 17 installed in the float chamber 8 is a hollow sealed box type having a portion 17a on the upper surface, and is guided to the guide 18 or the side surface of the float chamber 8. In the size and shape which moves freely up and down, the bottom face is made into a plane wider than the opening edge so that the opening edge of the drop opening 16 can be closed. In addition, the float 17 is set to the volume and the weight which can exert a buoyancy larger than the suction force by the water in the reflux tube 10.

In the filtration device 1 having the above-described configuration, the pump pump 6 is operated so that the water discharged from the discharge nozzle 13 is discharged from the distribution hole 14... When supplied on the filter medium 9 in the column), these waters are filtered while passing through the filter medium 9, and the filtered water flows through the grate 11 and flows down in the flow passage 15 to form a float chamber 8 Flows into). When the filtered water flows into the float chamber 8, the water level rises.

When the water level is higher than the opening edge of the drop port 16, the lower part of the float 17 comes into contact with water, so buoyancy is generated, and as the water level rises again, the buoyancy increases and the lower end of the float 17 falls and falls. The gap 21 is formed between the opening edges of the sphere 16.

Therefore, after that, when filtered water flows into the float chamber 8 continuously from the flow path 15, the filtered water in the float chamber 8 flows into the fall port 16 through the clearance gap 21, and the reflux pipe 10 is carried out. It flows down and returns to the tank main body 2 from the nozzle 20. FIG.

At this time, if the amount of filtered water flowing from the flow passage 15 into the float chamber 8 increases again, the water level rises again, and the float 17 also rises accordingly, and the space 21 expands.

Therefore, the amount of filtrate flowing into the drop opening 16 from the float chamber 8 also increases, so that the amount of filtrate flowing from the flow path 15 into the float chamber 8 and the drop opening in the float chamber 8 ( The amount of filtrate flowing into 16 is equal.

In this state, since the inside of the reflux tube 10 flows from the dropping port 16 in the state full of filtered water, and the float 17 exists directly above the dropping port 16, it flows into the float chamber 8 No air enters the filtrate refluxed in the tank body (2). Therefore, there is no sound of water caused by air.

On the other hand, when the amount of water supplied to the filtration tank 5 decreases due to several seconds in the absorption port 22 of the pump pump 6 or the voltage decreases, the amount of water passing through the filter medium 9 also decreases. Thus, the air flowing into the float chamber 8 together decreases accordingly.

In this way, when the amount of filtered water flowing into the float chamber 8 decreases, the water level in the float chamber 8 decreases, so that the float 17 also falls, and thus the lower surface and the drop opening 16 of the float 17 are lowered. The gap 21 between the opening edges 21 is also narrowed. Therefore, also in this case, the amount of filtered water flowing from the filtration chamber 7 into the float chamber 8 and the amount of filtered water flowing out from the float chamber 8 to the drop opening 16 become equal, and thus the float chamber 8 It is possible to avoid air from entering the filtered water refluxed in the water tank body 2 from the.

In addition, when the amount of water supplied from the pump pump 6 decreases and, as a result, the supply is stopped, the water level in the float chamber 8 decreases, and the float 17 falls, and finally the bottom surface of the float 17 It comes in contact with the opening edge of this drop opening 16, and closes the drop opening 16. As shown in FIG.

In this way, when the drop port 16 is closed by the float 17, the reflux of the filtered water is stopped, and the water in the reflux pipe 10 is in a state of sucking the float 17 into the drop port 16. However, when the dust of the absorption port 22 is removed or the pumping capacity of the pump pump 6 recovers and the amount of water supplied to the filtration chamber 7 increases, the water level of the float chamber 8 rises.

And since the float 17 is set so that the buoyancy larger than the suction force by the water in the reflux tube 10 may generate | occur | produce, when the water level becomes a little higher than the fall port 16, it floats against a suction force.

Therefore, the drop opening 16 closed by the float 17 opens, and the filtered water in the float chamber 8 flows into the drop opening 16 from the section 21 formed between the float 17. In addition, since the float 17 moves up and down according to the quantity of the filtration water which flows from the filtration chamber 7 into the float chamber 8, and the clearance gap 21 is adjusted, as shown in the above-mentioned state, the filtrate is replaced with the hydrogen main body 2 It can be quietly refluxed in).

In addition, in this embodiment, as shown in FIG. 4 and FIG. 5, the overflow flow path 23 is formed beside the float chamber 8, and the float 17 raises by a trouble etc. When the state which does not generate | occur | produce, the filtrate water overflows in the tank main body 2 from this overflow passage 23. As shown in FIG.

In the above-described embodiment, since the electric pole of the opening edge of the drop opening 16 is closed at the bottom surface of the float 17, when the bottom surface of the float 17 approaches the drop opening 16, the immediate gap 21 is closed. When it narrows, the float 17 is attracted to the fall port 16 side by the force of the filtered water which flows down from the fall port 16. As shown in FIG.

Here, as shown in FIG. 6 and FIG. 7, the notch 24 may be formed in a part of the drop port 16, thereby weakening the suction force acting on the float 17. As shown in FIG.

As described above, according to the present invention, the amount of water supplied from the pump and the amount of outflow returned to the water tank can be balanced by the vertical movement of the float immediately above the dropping port, and the suction of the air at the dropping port can be prevented. In addition, water can be filled from the dropping port into the reflux tube.

Therefore, when the filtered water flows down from the filtering device into the tank body, the sound of water generated can be significantly reduced. Thus, even if the filtration device is operated in a quiet room, it does not have to be concerned about the hook and does not cause facial disturbance even at night.

Claims (2)

A tub of a tubular fish tank having a filtration tank installed above the tank body, the water in the tank body (2) pumped up by the pump pump is passed through the filter medium in the filtration tank and filtered, and the filtered water is returned to the tank body through the reflux tube. In the filtration structure, a filtration chamber for loading a filter agent is formed, and a float chamber is formed in communication with the filtration chamber, and at the bottom of the float chamber, a drop opening in which a lower end opening portion communicates with a reflux tube and opens substantially. And a float having a lower surface contacting the opening edge of the drop opening in the float chamber so as to be operable up and down. 2. The filtration device for ornamental fish according to claim 1, wherein the opening edge of the drop port has at least one cut out.