JPH0243451Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a filter suitable for use in an aquarium for aquarium fish, etc.

(Prior art) This type of filter uses a flow of fine bubbles ejected from a foam and a water flow caused by the flow.
It has a structure that sucks water from outside into the filter and filters it, but with conventional filters, the filter may become partially clogged and impede its function, or the filter function cannot be achieved due to inadequate passage resistance. There were problems such as insufficient performance or water flow passing through the gap between the filter and the case.

(Technical Issues) The purpose of this invention is to ensure that the filter function is not impaired even after long-term use, and that the filter is easy to replace.
The purpose is to provide a filter that is highly practical and easy to use.

(Technical means) The purpose is to
at one end and a conduit 3 leading to the air pump at the other end.
is provided in the case 1, and a nozzle 4 for discharging filtered water out of the case is formed at a position downstream of the foam of the case 1, and water from outside the vessel is introduced into the vessel by the foaming flow discharged from the foam 2. Water intake ports 5 and 21 in case 1
A first filter is formed, and includes an outer portion 6A for primary filtration of introduced water outside the vessel, and an inner portion 6B for secondary filtration, and both portions 6A and 6B are separated by a protruding support portion 6D. A filter 6 is installed in the container, and a blocking member 7 is interposed between the first filter 6 and the nozzle 4 to prevent the water introduced from the water suction port 5 from being directly sucked into the vicinity of the nozzle, and the filter 6 is installed at the bottom of the case. , water inlet 2
A second filter 8 is provided to filter the inflow water from the filter 1, and in order to introduce the filtered water into the intermediate space 6C of the first filter 6, a hole 9 is opened in the inner lid 16 interposed between the filters 6 and 8. This is achieved through the following configuration.

(Function of the invention) In the filter of this invention, when air is sent through the pipe 3, it passes through the foam 2 and becomes fine bubbles that are ejected into the water, and the air is ejected from the nozzle 4 where the device is installed. As it diffuses into the water tank, the water around the foam also flows out from the nozzle 4 along with the flow, so the water outside the vessel is sucked through each suction port 5, 21 and passes through the first and second filters 6, 8. during which the water is filtered. At this time, since the first filter has an outer part 6A and an inner part 6B, the water flow from the water inlet 5 passes through both parts and undergoes a two-stage filtration action, and the water flow from the second filter 8 passes through the inner part 6B. Since it passes through 6B, it is also filtered in two stages. Furthermore, since the blocking member 7 is interposed between the first filter 6 and the nozzle 4, and the inner lid 16 is interposed between both filters 6 and 8, the filter action is reliably performed.
The flow is not concentrated in one part, and the entire filter is used effectively. Also, filter replacement is easy.

(Embodiment) To explain with the illustrated embodiment, the filter is equipped with a triangular corner-shaped main body case 1 with an opening at the bottom and a bottom lid 11 fitted to the bottom surface. This portion 12 and the angle joint 13 are communicated through a conduit 3, and air is introduced from an air pump (not shown). Since the joint 13 is angled, it is possible to connect the conduit without difficulty.
Moreover, it has the advantage that it does not require space between it and the tank wall.
Reference numeral 14 designates a recess around the cylindrical portion, and reference numeral 15 designates a second filter 8 with pebbles filled therein as a weight and a filter medium. 16 is an inner lid that covers the recess 14; 17 is a fitting tube that has a flange 18 and fits into the cylindrical portion 12; 19 is a joint tube that fits into the center hole 20; A foam body 2 having micropores is fitted therein.

The filter has water suction ports 5 and 21 formed on the circumferential surface of the upper part of the main body and the bottom cover 11, respectively, and the water suction port 5 is formed in the first
To the filter 6, the water inlet 21 is connected to the second filter 8
Introduce water from outside the vessel. The second filter 8 communicates with the intermediate space 6C through the hole 9 of the inner cover 16, and the cylindrical nozzle 4 installed upright above the center of the case 1 is connected to the foam 2 only through the through hole 7A of the blocking member 7. I understand,
It is provided so that water flowing in from each water intake port 5 does not directly flow out from the nozzle 4. The filter 6 has an outer portion 6A formed to face the water inlet 5 with a substantially uniform thickness over the entire width thereof, and has a pleated area increasing portion 10 to the extent that the uniformity is not impaired.
In addition, an intermediate space 6C extending over the entire width of each outer portion 6A is provided to maximize the filtration function. The inner portion 6B has a cylindrical shape and is connected to the fitting tube 17.
The cutout 6E fits into the protrusion 22 of the blocking member 7, and is supported by a support portion 6D between the outer portion and the cutout 6E, allowing water to flow even at the corner. The filter 6 is formed by punching out a non-woven fabric molded body or a synthetic resin foam such as polyethylene, and its mesh can be arbitrarily selected from several types. If it is formed slightly larger (lower) than the filter 6, the outer surface of the filter 6 will come into close contact with the inner wall of the container, allowing the water flow to pass through it more effectively, and by compressing the filter 6, the actual mesh can also be made smaller. In addition, since they are formed by punching, the increased surface area portion 10, the intermediate space 6C, the central hole 6F, and the notch 6E can be easily formed. The solid line in FIG. 1 shows bubbles and the accompanying water flow, and the chain line shows the suction flow.

(Effect of the invention) Therefore, according to the invention, since the water flow passes through two stages of filtration in the double first filter 6, second filter 8, and part of the first filter, impurities in the water can be removed. This allows for a sufficient supply of oxygen.
In particular, the first filter 6 filters the primary filtered water that has passed through the outer portion 6A facing the water intake port 5, the inflow water from the second filter 8, and the outer portion 6A, so that water flow resistance can be dispersed and filtered. , and also controlled by the blocking member 7 and the inner lid 16 so that the water flow sucked into the case does not go directly to the nozzle 4,
Since the water flows in a roundabout manner and impurities are not concentrated, the entire surface of the filters 6 and 8 is utilized very effectively, and the filter performance can be maintained for a long time.
Furthermore, it is possible to improve the filter function by increasing its surface area, and since it is so-called spongy, it is easy to clean and reuse even if it becomes clogged or dirty, which has remarkable practical effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the filter according to the present invention, in which FIG. 1 is a longitudinal cross-sectional view, FIG. 2 is a cross-sectional plan view,
FIG. 3 is an exploded perspective view of the entire device. 1...Case, 2...Foam, 3...Pipe line, 4
... Nozzle, 5, 21 ... Water inlet, 6 ... First filter, 7 ... Blocking member, 8 ... Second filter, 9 ... Hole, 11 ... Surface area increasing part, 16 ...
Inner lid.

Claims (1)

[Claims for Utility Model Registration] (1) The case 1 has a foam 2 disposed in the case 1 at one end, and the other end is provided with a conduit 3 that leads to an air pump, A nozzle 4 for discharging filtered water to the outside of the case is formed in the case 1, and water inlets 5 and 21 are formed in the case 1 for introducing water from outside the vessel into the vessel by a foaming flow discharged from the foam body 2. An outer portion 6A that performs primary filtration of water outside the container, and an inner portion 6B that performs secondary filtration.
A first filter 6 having both portions 6A and 6B separated by a protruding support portion 6D is installed in the vessel to prevent water introduced from the water intake port 5 from being directly sucked into the vicinity of the nozzle. A blocking member 7 is interposed between the first filter 6 and the nozzle 4, and a second filter 8 is provided at the bottom of the case to filter inflow water from the water intake port 21, and the filtered water is filtered between the first filter 6 and the nozzle 4. A filter having a configuration in which a hole 9 is opened in an inner lid 16 interposed between both filters 6 and 8 in order to introduce the filter into the cavity 6C. (2) The first filter 6 is a filter according to claim 1, wherein the first filter 6 has a pleated surface area increasing portion 10 on the outside facing the water intake port 5. (3) The filter according to claim 1 or 2, wherein the outer portion 6A of the first filter 6 has a substantially uniform filtration thickness and faces the water inlet 5.