JPH0240780Y2 - - Google Patents

Description

[Detailed explanation of the invention] This design is installed in the corner of a fish tank for breeding ornamental fish and other various types of fish, and the water in the tank has become contaminated with various impurities due to the inhabitation of fish. The present invention relates to a filter for a fish tank, which returns the water to the tank as clean water from which impurities have been removed, thereby keeping the water in the tank clean at all times.

Conventional filters of this kind have, for example, a water intake port for introducing sewage in a water tank into a container containing a filter medium, and a water intake port is provided at the lower front of the container, and the sewage flowing from the water intake port is A structure is known in which sewage is introduced into the container above the filter chamber through an introduction channel provided at the front of the container so as to communicate with the water intake port (Utility Model Publication No. 50-3515).
issue).

However, in this filter, the sewage water intake is opened only at the lower front of the container, so only the sewage from the front of the water intake is introduced into the container, and the sewage from the back of the water intake is The problem is that it is difficult for sewage that accumulates in blind areas from both sides to the rear of the container to be introduced into the container, making it difficult to expect a reliable filtration and cleaning effect.

The aim of this project is to solve these problems with conventional filters by opening the wastewater intake port of the container in the rear corner of the container, which is in contact with the corner of the water tank so that no blind spot will occur in the container. , the sewage around the container is introduced into the container through the water intake port evenly and efficiently through the flow path space formed between the bottom surface of the container and the bottom of the water, and also A large number of sewage inflow holes are also provided on the sloped surface of the front surface of the lid to be fitted, so that sewage can be efficiently introduced into the container through each hole, and filtration of the sewage can be carried out efficiently. It is something to do.

To explain the embodiment of the filter of the present invention shown in the drawings, this filter is composed of a container 1 and a lid 2. Rear left and right walls 4 and 5 whose rear corners form a right angle so that the container 1 is placed at a corner in the aquarium 3;
Front left and right walls 6, 7 that are perpendicular to these rear left and right walls 4, 5, and these front left and right walls 6,
an inwardly curved central front wall 8 provided in the middle of 7;
and a bottom plate 9 provided on the lower surface of each of these walls.

Further, the filter medium 10 housed in the container 1 has a large number of through holes 11 arranged on the container bottom plate 9 so that spaces 13 are separated by a protruding piece 14 on the back side.
It is arranged on a support plate 12 having a. On this support plate 12, a blow cylinder 16 is provided with an air stone 15 installed therein for sending air sent from a pump outside the water tank 3 into the water tank 3 in the form of a large number of fine bubbles.

Further, the bottom plate 9 of the container 1 has a plurality of protruding support members 17 protruding from the lower surface, and the container 1 is attached to the water bottom 1 made of sand or gravel via these support members 17.
8, a channel space 19 is formed between the container bottom plate 9 and the water bottom 18.

In the embodiment, as a means to more accurately obtain the flow path space 19, as shown in FIG. A frame-shaped seat plate 20 having the same shape as the container bottom plate 9 is attached to the lower surface of the container bottom plate 9 by connecting the support member 17 and the leg-like projections 21. By placing such a seat plate 20 on the water bottom 18, such as gravel, the container 1 can be stably supported on the water bottom 18, and an appropriate flow path space 19 can be reliably obtained. Become.

At the rear corner where the rear left and right walls 4 and 5 of the container 1 intersect, there is provided a wastewater introduction path 24 that is separated by a filter chamber 22 and a partition wall 23 in the container 1, and the lower end of this introduction path 24 is provided with a container bottom plate. A water intake port 25 that communicates with the flow path space 19 is provided in a portion located slightly above 9.

On the other hand, the lid 2 fitted onto the container 1 has a connecting tube 26 that is connected to the tip of the feeding tube 16 inside the container 1. is firmly fitted onto the container 1 by the connection to the tip of the sending cylinder 16.

The front surface of the lid 2, which corresponds to the upward extension of the front left and right walls 6, 7 and the central front wall 8 of the container 1, is formed into steep slopes 28, 29. A plurality of inflow holes 30 are provided in each of these inclined surfaces 28 and 29. These inflow holes 30 are vertically opened in a plurality of grooves 31 formed along the vertical direction of the slopes 28 and 29, and the sewage accumulated in the upper part of the lid 2 flows through the inflow holes 30. When heavy waste that is introduced into the container 1 or that settles without floating in the water slides down along the groove 31 of the slope 28 or 29, it flows out of the inflow hole 30 into the container on the way. It is designed to fall into a filter medium chamber 22 within the filter medium 1.

The filter according to the present invention has the above-described structure, in which air is sent from outside the water tank 3 through the tube 32 to the air stone 15 at the lower end inside the sending cylinder 16,
By forming many small bubbles and rising above the feed tube 16, the water in the feed tube 16 also flows upward into the tube, and as a result, the water in the water tank 3 flows into the water intake at the rear corner of the container 1. It will be introduced into the container 1 through the mouth 25 and the inflow hole 30 of the lid 2.

The water in the water tank 3 is introduced into the container 1 from two places, the water intake port 25 and the inflow hole 30, as described above, but one of the water intake ports 25 is provided at the rear corner of the container 1. Therefore, there is no blind spot as a water intake, and the sewage that has settled and accumulated on the wide water bottom 18 at the front of the container, which consists of the front left and right walls 6, 7 and the center front wall 8, can be removed from the bottom plate 9 of the container. The suction can be introduced smoothly via the flow path space 19 on the lower surface.

In addition, the inflow hole 30 of the lid 2 has steep slopes 28 and 29 on the front surface, and is opened vertically along the vertical direction of the slope, so that it can be used over a wide area in the front and upper portions of the container 1. Dirty water in the tank can be introduced directly into the container 1.

In this way, the filter of the present invention, when placed in the corner of the water tank 3, has the water intake port 25 provided below the rear corner of the container 1, the front inclined surface 28 of the lid 2,
Since the sewage in the water tank can be introduced from two places, including the vertically elongated inflow hole 30 provided in the container 29, the sewage can efficiently flow into the container filter medium chamber 22 from a wide range of water. It has the effect of significantly improving filtration efficiency compared to conventional filters of this type.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the filter according to the present invention, Fig. 2 is a cross-sectional view showing the internal structure of the filter when placed in an aquarium, Fig. 3 is a cross-sectional view taken along the - line in Fig. 2, Figure 4 is a plan view. In the figure, 1: container, 2: lid, 3: water tank, 4,
5: Rear left and right walls, 6, 7: Front left and right walls, 8: Center front wall, 9: Bottom plate, 10: Filter medium, 11: Through hole, 1
2: Support plate, 13: Space, 14: Projection piece, 15: Air stone, 16: Sending cylinder, 17: Support member, 1
8: Water bottom, 19: Channel space, 20: Seat plate, 2
1: leg-like protrusion, 22: filter medium chamber, 23: partition wall, 2
4: Inlet channel, 25: Water intake, 26: Connection tube, 2
7: Fitting portion, 28, 29: Inclined surface, 30: Inflow hole, 31: Concave groove.

Claims (1)

[Claims for Utility Model Registration] (1) Sewage introduced into a container by the release action of air supplied to an air supply pipe inside the container is filtered by a filter medium, and clean water is returned into the water tank along with the released air. In the filter for a fish tank, the filter consists of a combination of a container and a lid, and the container has at least the adjacent rear left and right walls forming a right angle to fit with a corner in the tank, and the bottom plate of the container. A support member protruding from the bottom plate on the lower surface has a passage space for introducing wastewater into the container between the bottom plate and the bottom of the aquarium, and a space is provided at the corner between the rear left and right walls. It has a sewage introduction path separated from the filter medium chamber in the container by a partition wall, and a water intake port communicating with the flow path space on the lower surface of the bottom plate of the container at the lower end of this introduction path. A filter for a fish aquarium, characterized in that it has a steeply sloped side and a plurality of vertically elongated inlet holes are formed along the vertical direction of the slope. (2) Practical use in which the flow path space on the lower surface of the container bottom plate is provided between the lower surface of the container bottom plate and a seat plate placed on the water bottom via a plurality of supporting members protruding from the bottom surface of the bottom plate. A filter for a fish tank according to claim 1 of the patent registration claim. (3) Utility model registration where a plurality of inflow holes are opened in the front inclined surface of the lid that is fitted to the top of the container, and the plurality of inlet holes are opened in the plurality of grooves formed along the vertical direction of the inclined surface. A filter for a fish tank according to claim 1. (4) The fish tank filtration according to claim 1, wherein the front portion of the container and the lid are formed by a central front wall provided between the front side walls of the container and the lid. vessel.